Capability

x402

424 candidate services. Evidence shown is verified outcome telemetry, not reviews.

$0.01 for 30 $NUT402, fair launch, no pre-mine or team allocation, and liquidity auto-added at mint completion.

nut402.codenut.xyz

~$0.01 USDC per call · Seed (curated, not yet probed)

2Captcha

paysponge

~$0.01 USDC per call · Seed (curated, not yet probed)

A Chart.js-compatible charting API: POST a standard Chart.js `{ type, data, options }` — the same object you would hand to `new Chart()` — and get back a rendered PNG. Supports bar, line, pie, doughnu

api.chartsplat.com

Priced per call (estimate pending) · Seed (curated, not yet probed)

A Chart.js-compatible charting endpoint: POST a standard Chart.js config — the same `{ type, data, options }` you'd hand to `new Chart()` — and get back a rendered PNG. Backed by chartsplat.com, it re

charts.wdh.sh

Priced per call (estimate pending) · Seed (curated, not yet probed)

A pay-per-link URL shortener: POST a long URL (optionally a custom slug and TTL) and get back a short wdh.sh link. Handy anywhere characters are scarce — social posts, SMS, podcast show-notes, slides,

short.wdh.sh

Priced per call (estimate pending) · Seed (curated, not yet probed)

Add a new memory. This method is called every time the user informs anything about themselves, their preferences, or anything that has any relevant information which can be useful in the future conver

staging.toolkit.dev

~$0.01 USDC per call · Seed (curated, not yet probed)

Address Validation API

solana-foundation

~$0 USDC per call · Seed (curated, not yet probed)

Agent morning brief. One paid call returns the last 24 hours of AI pricing changes, new and removed models, service-status incidents, and top news headlines. The endpoint an agent calls on boot.

tensorfeed.ai

Priced per call (estimate pending) · Seed (curated, not yet probed)

Agent profile lookup. Returns trust score, component breakdown, feedback counts, and metadata for any ERC-8004 agent.

api.thetrustlayer.xyz

Priced per call (estimate pending) · Seed (curated, not yet probed)

Agent wallet funding route

x402.clashofcoins.com

Priced per call (estimate pending) · Seed (curated, not yet probed)

Agent-SOFR — decentralized USD short-rate benchmark for AI agents. Weighted-median of 7 sources + variance + regime premiums. BNS-calibrated 6-mode classifier on 444k ETH/USDC 5-min bars (λ=1.097 clos

regimeshift.xyz

Priced per call (estimate pending) · Seed (curated, not yet probed)

AgentHub

3dprintedcat.com

~$0.003 USDC per call · Seed (curated, not yet probed)

AgentLair

agentlair.dev

~$0.0001 USDC per call · Seed (curated, not yet probed)

AgentMail

agentmail

~$0 USDC per call · Seed (curated, not yet probed)

AgentOracle: live service-health snapshot — tracked-token count, last ingestion timestamp, ingestion error counter, process uptime, and API version. Use as a cheap heartbeat before issuing larger quer

aiagentoracle.ai

Priced per call (estimate pending) · Seed (curated, not yet probed)

AgentPay tool call

agentpay.tools

Priced per call (estimate pending) · Seed (curated, not yet probed)

AI Chat Completion

api.x-router.ai

~$0.135168 USDC per call · Seed (curated, not yet probed)

AI image generation using Grok Imagine model (Base Mainnet).

api.xona-agent.com

Priced per call (estimate pending) · Seed (curated, not yet probed)

AI text summarization — cheap LLM inference on Base

clawtious.creatormagic.ai

Priced per call (estimate pending) · Seed (curated, not yet probed)

AI-powered Token Deep Research API

www.capminal.ai

Priced per call (estimate pending) · Seed (curated, not yet probed)

Air Quality API

solana-foundation

~$0 USDC per call · Seed (curated, not yet probed)

AIScan

getaiscan.app

~$0.06 USDC per call · Seed (curated, not yet probed)

Alchemy

Priced per call (estimate pending) · Seed (curated, not yet probed)

Alibaba Cloud Agent Skills Explorer

solana-foundation

~$0.001 USDC per call · Probed (measured by harness) · p95 303 ms · 0% success

Alibaba Cloud AI Generation

solana-foundation

~$0.001 USDC per call · Seed (curated, not yet probed)

Alibaba Cloud AnyTrans

solana-foundation

~$0.001 USDC per call · Seed (curated, not yet probed)

Alibaba Cloud CAPTCHA

solana-foundation

~$0.001 USDC per call · Seed (curated, not yet probed)

Alibaba Cloud Contact Center AI

solana-foundation

~$0.001 USDC per call · Seed (curated, not yet probed)

Alibaba Cloud EduTutor

solana-foundation

~$0.001 USDC per call · Seed (curated, not yet probed)

Alibaba Cloud Facebody

solana-foundation

~$0.001 USDC per call · Seed (curated, not yet probed)

Alibaba Cloud FaRui

solana-foundation

~$0.001 USDC per call · Seed (curated, not yet probed)

Alibaba Cloud Green

solana-foundation

~$0.001 USDC per call · Seed (curated, not yet probed)

Alibaba Cloud Image Recognition

solana-foundation

~$0.001 USDC per call · Seed (curated, not yet probed)

Alibaba Cloud Image Segmentation

solana-foundation

~$0.001 USDC per call · Seed (curated, not yet probed)

Alibaba Cloud Information Query Service

solana-foundation

~$0.001 USDC per call · Probed (measured by harness) · p95 261 ms · 0% success

Alibaba Cloud Intelligent Speech Interaction

solana-foundation

~$0.0014 USDC per call · Seed (curated, not yet probed)

Alibaba Cloud IVPD

solana-foundation

~$0.001 USDC per call · Seed (curated, not yet probed)

Alibaba Cloud Machine Translation

solana-foundation

~$0.001 USDC per call · Seed (curated, not yet probed)

Alibaba Cloud Model Studio Embeddings

solana-foundation

~$0.0007 USDC per call · Seed (curated, not yet probed)

Alibaba Cloud Model Studio OCR

solana-foundation

~$0.001 USDC per call · Seed (curated, not yet probed)

Alibaba Cloud Model Studio Speech Recognition

solana-foundation

~$0.000035 USDC per call · Seed (curated, not yet probed)

Alibaba Cloud Model Studio Text-to-Speech

solana-foundation

~$0 USDC per call · Seed (curated, not yet probed)

Alibaba Cloud Model Studio Translation

solana-foundation

~$0.001 USDC per call · Seed (curated, not yet probed)

Alibaba Cloud PAI Model Gallery

solana-foundation

~$0.001 USDC per call · Seed (curated, not yet probed)

Alibaba Cloud SAF

solana-foundation

~$0.001 USDC per call · Seed (curated, not yet probed)

Analyse a TikTok, Instagram Reel, or YouTube Shorts video. Omit format for full VideoAnalysis (transcript, scenes, visual summary). Optional format selects a workflow template (24 formats: brand safet

api.entit.ai

Priced per call (estimate pending) · Seed (curated, not yet probed)

Anchor Browser

anchorbrowser.io

~$0.5 USDC per call · Probed (measured by harness) · p95 66 ms · 100% success

API request: /api/v1/explorer/queries/run-async

agents.allium.so

Priced per call (estimate pending) · Seed (curated, not yet probed)

Apify Store is the largest marketplace of tools for AI agents. Extract data from any website and automate your workflows with thousands of scrapers, crawlers, and automation tools called Actors.

api.apify.com

Priced per call (estimate pending) · Seed (curated, not yet probed)

Assess a payTo wallet, domain, or endpoint for observed buyer/call history, price sanity, route coverage, and allow/warn/block policy. Returns JSON. Price 0.15 USDC on Base via x402. Demo/preview: htt

x402-endpoint-risk-corpus.mtree.workers.dev

Priced per call (estimate pending) · Seed (curated, not yet probed)

AsterPay

asterpay.io

~$0.001 USDC per call · Seed (curated, not yet probed)

Audit a site's HTTP security headers before embedding, scraping, or trusting it. Returns an A+ to F grade and 0–100 score with structured analysis of HSTS, CSP, X-Frame-Options, X-Content-Type-Options

api.trustsource.cc

Priced per call (estimate pending) · Seed (curated, not yet probed)

Audit standing ERC-20/Permit2 approvals for danger. Raw allowance lookups exist elsewhere; this is the risk layer: pass your current approvals and we rank which to revoke — unlimited allowance, unknow

x402.dailyelo.com

Priced per call (estimate pending) · Seed (curated, not yet probed)

AzurSafe's premium x402-powered real-time risk screening for agentic wallets and autonomous onchain actions. Primarily screens wallet addresses on +30 major blockchains (utxo, evm, sol, xrp, tron and

ai.azursafe.com

Priced per call (estimate pending) · Seed (curated, not yet probed)

Bank of England base rate history with current rate and time series.

finance.payapi.market

Priced per call (estimate pending) · Seed (curated, not yet probed)

Base token launch score / memecoin risk API / new token rug-check / token launch quality grade / token safety score. Scores fresh token launches on Base 0-100 with deployer identity, social signals, t

base-intel-api.jakemaxsigal.workers.dev

~$0.008 USDC per call · Seed (curated, not yet probed)

Base X profile mini-endpoint. Fetches a full X profile and the 10 most recent tweets for a given handle, returning the raw profile data plus a trimmed tweet list with key engagement metrics and media.

x402factory.ai

~$0.001 USDC per call · Seed (curated, not yet probed)

Batch Runner: Batch jumps to run through Base City. How far can you get Rex402 with 100 jumps? Make them count.

batch-runner.vercel.app

Priced per call (estimate pending) · Seed (curated, not yet probed)

Begin identity verification for a wallet. Costs $0.05 USDC. Returns a hosted verification URL and the bound wallet address. Open kycUrl in a browser. Once complete, any service can verify the wallet v

kyc.madhousewallet.com

Priced per call (estimate pending) · Seed (curated, not yet probed)

Bid to post on AgentNews — stake $0.50+ USDC. Top 10 bids by stake published hourly.

agent.news

Priced per call (estimate pending) · Seed (curated, not yet probed)

Bidirectional ERC20 token swap aggregator on Base mainnet via LiFi routing across 20+ DEXs (Uniswap V3, Aerodrome, BaseSwap, SushiSwap). USDC to WETH AERO DEGEN BRETT TOSHI cbETH cbBTC or any ERC20, a

proxy.suverse.io

Priced per call (estimate pending) · Seed (curated, not yet probed)

BigQuery API

solana-foundation

~$0.001 USDC per call · Seed (curated, not yet probed)

Biomedical research publication trends from PubMed — year-by-year counts, growth analytics, and CAGR for any medical, clinical, or scientific topic

pubmed.sekgen.xyz

Priced per call (estimate pending) · Seed (curated, not yet probed)

Birdeye Data

birdeye

~$0 USDC per call · Seed (curated, not yet probed)

bitfence MCP risk oracle — JSON-RPC 2.0 tool interface

api.bitfence.ai

Priced per call (estimate pending) · Seed (curated, not yet probed)

BlindOracle agent reputation (ERC-8004 + ProofDB)

api.craigmbrown.com

Priced per call (estimate pending) · Seed (curated, not yet probed)

Blocksize Market Data

blocksize

~$0.002 USDC per call · Seed (curated, not yet probed)

Book a paid Resy reservation for the authenticated user using a slot config token.

agentres.dev

Priced per call (estimate pending) · Seed (curated, not yet probed)

BTC/USD spot price — Ed25519 signed attestation

api.myceliasignal.com

Priced per call (estimate pending) · Seed (curated, not yet probed)

Bulk DMARC Record Lookup

underscoredone.com

~$0.01 USDC per call · Seed (curated, not yet probed)

Buy 60-second minutes on TheAgentBillboard.com — the billboard for AI agents. $1.00 USDC on Base via x402 per minute. Buy N minutes (1–1000) in ONE payment with the ?minutes=N query parameter (charged

theagentbillboard.com

Priced per call (estimate pending) · Seed (curated, not yet probed)

Buy an upload slot. Agent uploads file via returned URL.

stableupload.dev

Priced per call (estimate pending) · Seed (curated, not yet probed)

Buy gift cards, eSIMs, mobile top-ups & prepaid cards, paid in USDC via x402 on Base. 10,000 brands across 180+ countries, no API keys or account required.

api.bitrefill.com

Priced per call (estimate pending) · Seed (curated, not yet probed)

Buy the shared research step once instead of each agent re-running it for ~$0.30-0.50: one $0.02 digest, shared across every buyer. Structured JSON on security incidents, stablecoin/payments regulatio

shared-inference-market.wongjinquan.workers.dev

Priced per call (estimate pending) · Seed (curated, not yet probed)

ChatGPT

platform.openai.com

~$0.001 USDC per call · Seed (curated, not yet probed)

Chinese dog days, sanfu, 三伏, hottest period of year, Chinese coldest period, sanjiu, 三九, Chinese folk seasonal periods, Chinese medicine seasonal therapy, fu tian, 伏天, Chinese summer heat, Chinese win

api.cn402.com

~$0.016 USDC per call · Seed (curated, not yet probed)

Claude

docs.anthropic.com

~$0.001 USDC per call · Seed (curated, not yet probed)

Cloud Document AI API

solana-foundation

~$0 USDC per call · Seed (curated, not yet probed)

Cloud Natural Language API

solana-foundation

~$0.001 USDC per call · Seed (curated, not yet probed)

Cloud Speech-to-Text API

solana-foundation

~$0.016 USDC per call · Seed (curated, not yet probed)

Cloud Text-to-Speech API

solana-foundation

~$0.00003 USDC per call · Seed (curated, not yet probed)

Cloud Translation API

solana-foundation

~$0 USDC per call · Seed (curated, not yet probed)

Cloud Video Intelligence API

solana-foundation

~$0.1 USDC per call · Seed (curated, not yet probed)

Cloud Vision API

solana-foundation

~$0.0015 USDC per call · Seed (curated, not yet probed)

Clustly

clustly

~$0 USDC per call · Seed (curated, not yet probed)

CoinMarketCap

coinmarketcap.com

~$0.01 USDC per call · Seed (curated, not yet probed)

Compact Daily Monitoring snapshot for the tracked slice.

api.aitrailblazer.net

Priced per call (estimate pending) · Seed (curated, not yet probed)

Company enrichment from a domain. Input stripe.com and receive structured firmographics: company name, industry, country, employee range, technologies, B2B classification, and confidence score. Built

domain-enricher.hahavoid0.workers.dev

Priced per call (estimate pending) · Seed (curated, not yet probed)

Compare two organization/company names and receive a match score from 0-100 indicating how similar they are. Useful for determining if two company names refer to the same entity.

api.interzoid.com

Priced per call (estimate pending) · Seed (curated, not yet probed)

Complete list of all Bitcoin Core RPC methods (summaries). One call replaces up to 142 individual lookups. Returns name, category, summary, and parameter count for every method.

www.bitcoind.app

Priced per call (estimate pending) · Seed (curated, not yet probed)

Compound SEC/EDGAR (US) research bundle: announcements, extracted figures, summary. Identical schema across all supported markets.

agentstack-research-3bnlllaboa-ts.a.run.app

Priced per call (estimate pending) · Seed (curated, not yet probed)

Comprehensive US property intelligence from a single address. Returns 50+ fields covering property details, automated valuation, neighborhood demographics, and nearby school ratings. Powered by ATTOM.

jtifhcvbgxqwlywugvjv.supabase.co

Priced per call (estimate pending) · Seed (curated, not yet probed)

Compress text, Markdown, or JSON to a structured summary. Formats: prose, bullets, headline, tldr.

web-production-78e17.up.railway.app

Priced per call (estimate pending) · Seed (curated, not yet probed)

Compute XIRR and MOIC from irregular cash flows with exact dates. Standard for private equity, real estate, and venture return calculations.

financial-analyst.ai

Priced per call (estimate pending) · Seed (curated, not yet probed)

Conversation Risk Intelligence API for AI agents. Call BS Man API analyzes chats, offers, and proposed agent actions for scam signals, manipulation tactics, unsafe payment requests, wallet/payment ris

api.callbsman.com

Priced per call (estimate pending) · Seed (curated, not yet probed)

Convert an HTML string to clean Markdown. Strips navigation, scripts, styles, and non-content elements. Use when you have an HTML string in memory and want Markdown for an LLM context window, document

utilsforagents.com

Priced per call (estimate pending) · Seed (curated, not yet probed)

Count words, characters, sentences, paragraphs, and reading time

word-counter.api.klymax402.com

Priced per call (estimate pending) · Seed (curated, not yet probed)

Counterparty identity check via Farcaster: pass username (no @) or FID integer. Returns FID, username, display name, bio, pfp URL, follower / following counts, custody address, and verified 0x address

meryol-agenticmarket-x402.hf.space

Priced per call (estimate pending) · Seed (curated, not yet probed)

Create a Browserbase browser session with prepaid time. Returns a WebSocket connection URL for browser automation.

x402.browserbase.com

~$0.002 USDC per call · Seed (curated, not yet probed)

Create a MiniUp app from complete HTML supplied by an agent.

www.miniup.io

Priced per call (estimate pending) · Seed (curated, not yet probed)

Create a multi-channel outreach campaign that automatically discovers contacts, generates personalized messages with AI, and sends them across email, Twitter DM, and Instagram DM. One credit (~$2.25)

api.iris-ai.dev

Priced per call (estimate pending) · Seed (curated, not yet probed)

Create a new browser session ($0.10). Optionally pass sessionId to resume an existing Browserbase session. Returns sessionId (Browserbase session ID) to use for all subsequent calls.

www.stablebrowser.dev

Priced per call (estimate pending) · Seed (curated, not yet probed)

Crest · defi_yields — Fetch top 20 DeFi yield opportunities. Returns APY, TVL, project name, and chain. Sorted by APY, filtered to pools above $1M TVL.

data.crestsystems.ai

Priced per call (estimate pending) · Seed (curated, not yet probed)

Crest · trust_oracle — Should an autonomous agent trust this x402 service before paying? Full-stack evaluation: endpoint reachability, x402 protocol compliance, pricing reasonableness, schema quality,

deploy.crestsystems.ai

Priced per call (estimate pending) · Seed (curated, not yet probed)

Cron expression parser. Takes a 5/6/7-field cron expression or @yearly/@monthly/@weekly/@daily/@hourly macro and returns a plain-English explanation, frequency bucket, validation result, and a runs-pe

x402.agentutility.ai

Priced per call (estimate pending) · Seed (curated, not yet probed)

Cross-service anomaly detection. Revenue spikes, volume anomalies, whale tracking, z-score deviations.

spend.crestsystems.ai

Priced per call (estimate pending) · Seed (curated, not yet probed)

Cross-venue funding-rate arbitrage scan — tickers where (max_rate - min_rate) exceeds threshold. Naive filter, no signal logic.

api.usenami.io

Priced per call (estimate pending) · Seed (curated, not yet probed)

Cross-venue perpetual-swap funding rates (Hyperliquid, dYdX, Aevo live; GMX + Vertex coming v1.1) + spread. Annualized.

x402.payperbyte.io

Priced per call (estimate pending) · Seed (curated, not yet probed)

Crypto ETF Sentinel — Single-call market snapshot for US spot crypto ETFs (Bitcoin, Ethereum, Solana, XRP and more). DB totals, filings broken down by cryptocurrency + form type, regulatory-stage coun

api.cryptoetfsentinel.com

Priced per call (estimate pending) · Seed (curated, not yet probed)

Crypto news API and crypto market signals feed for agents. Returns market-moving headlines, macro events, weather, and x402 market data context.

api.seerium.xyz

Priced per call (estimate pending) · Seed (curated, not yet probed)

Current top DeFi yield opportunities filtered by chain and minimum TVL. Returns pool, project, chain, APY (base + reward), TVL, and stablecoin flag, sorted by APY. Sourced live from DefiLlama with att

x402-agent-store.rileycraig14.workers.dev

Priced per call (estimate pending) · Seed (curated, not yet probed)

Current weather conditions for any global location — temperature, feels-like, humidity, precipitation, wind, and human-readable weather description.

weather.payapi.market

Priced per call (estimate pending) · Seed (curated, not yet probed)

Current weather conditions for any global location — temperature, feels-like, humidity, precipitation, wind, and human-readable weather description.

x402-weather-api-production-04c4.up.railway.app

Priced per call (estimate pending) · Seed (curated, not yet probed)

Current weather from all Mauritius Meteorological Services stations (35+ stations)

mru-oracle.com

Priced per call (estimate pending) · Seed (curated, not yet probed)

DAILYSMOL — Darkfarms1 Generator — Generate crypto Pepe meme art in the style of Darkfarms1 (CC0). Fine-tuned by cc0toshi on a public-domain corpus. Output is public-domain (CC0). Async: returns a job

cc0.company

Priced per call (estimate pending) · Seed (curated, not yet probed)

Dataset metadata for this Japanese (JP) corporate-number API — how many corporations are loaded and which prefectures are covered.

houjin.agentic-jp.com

Priced per call (estimate pending) · Seed (curated, not yet probed)

Decode an EVM signature request (EIP-712 typed data, Permit/Permit2, or ERC-20 approve calldata) into a structured intent: what token, which spender, how much, until when, plus risk_flags and an actio

x402-store.dgdb.workers.dev

Priced per call (estimate pending) · Seed (curated, not yet probed)

DeepSeek AI inference — pay in USDC or EURC on Base

jeeves.originaltorrent.com

Priced per call (estimate pending) · Seed (curated, not yet probed)

DeFi protocol detail enriched with onchain activity (Base). v0.2-stub: returns DefiLlama TVL plus a placeholder onchain block; real CDP base.events integration lands in v0.1.x.

api.defibase.us

Priced per call (estimate pending) · Seed (curated, not yet probed)

Demo X402 premium endpoint (mainnet) - pay $0.01 USDC

api-dev.agents.skillfulai.io

~$0.01 USDC per call · Seed (curated, not yet probed)

Detect Gmail Yahoo Hotmail and other free email providers

orbisapi.com

Priced per call (estimate pending) · Seed (curated, not yet probed)

Deterministic BTC/ETH allocation facts for agents: full ContextBundle (portfolio, market, sentiment, macro, regime hints, delta), fused market context, USD rebalance move lines, and allocation band dr

mcp.alloc-context.com

Priced per call (estimate pending) · Seed (curated, not yet probed)

DEX price quote across 7 chains (Ethereum, Base, Arbitrum, Optimism, Polygon, BNB, Unichain). Returns sell/buy amounts, price, routing, and gas estimate.

trader.rigoblock.com

Priced per call (estimate pending) · Seed (curated, not yet probed)

Diagnose a production issue on a GitHub-hosted service. Aient reads OpenTelemetry traces+logs, correlates with recent commits, and returns root-cause evidence plus the cheapest next step (typically a

aient.ai

Priced per call (estimate pending) · Seed (curated, not yet probed)

DNS lookup for a domain. Supported record types: A, AAAA, MX, TXT, NS, CNAME.

agent402.tools

Priced per call (estimate pending) · Seed (curated, not yet probed)

DripMetricsAI (api description at https://dripmetrics.ai/) provides on-demand crypto market microstructure and risk metrics for agents and developers. Agents can pay per request via x402 and receive s

api.dripmetrics.ai

Priced per call (estimate pending) · Seed (curated, not yet probed)

dTelecom

dtelecom

~$0 USDC per call · Seed (curated, not yet probed)

Dynamic

dynamic

~$0 USDC per call · Seed (curated, not yet probed)

Eagle Eye v1.0.0 — U.S. enterprise-grade wallet compliance screening. OFAC SDN + Circle USDC blacklist on Base. Signed audit receipts. Certified single-address check.

eagle.quickai.build

Priced per call (estimate pending) · Seed (curated, not yet probed)

EarnFi Agent API

earnfi

~$0 USDC per call · Seed (curated, not yet probed)

EconDash

econdash.org

~$0.02 USDC per call · Seed (curated, not yet probed)

Enrich a company domain with name, description, industry, location, employee range, social profiles, logo, contact page and confidence score.

api.x402cloud.space

Priced per call (estimate pending) · Seed (curated, not yet probed)

ENS resolve - turn a .eth name into an address, or an address into its primary .eth name, via eth_call on OneSource live Ethereum RPC

skills.onesource.io

Priced per call (estimate pending) · Seed (curated, not yet probed)

EU stablecoin compliance check + regulatory due diligence — MiCA pre-flight verdict (PASS/WARN/BLOCK) with grade A-F and live ESMA authorization status. Supports USDC, USDT, EURC, RLUSD, DAI, FDUSD, P

tooloracle.io

Priced per call (estimate pending) · Seed (curated, not yet probed)

Evaluate a US property address for parcel match, FEMA flood zone, flood proximity, taxing entities, school district, permit history, zoning/land-use context, insurance red flags, due-diligence risk sc

property-risk-passport-api.lifebite-app.workers.dev

Priced per call (estimate pending) · Seed (curated, not yet probed)

Exa /search endpoint

api.exa.ai

Priced per call (estimate pending) · Seed (curated, not yet probed)

Extract structured metadata from any web page: title, description, author, published date, language, OpenGraph image, canonical URL, favicon and estimated reading time. Lightweight enrichment for AI a

x402.valkyry.fr

Priced per call (estimate pending) · Seed (curated, not yet probed)

Extract the main article content from any public URL as clean markdown. Returns title, byline, excerpt, word count, and markdown.

agent402-production.up.railway.app

Priced per call (estimate pending) · Seed (curated, not yet probed)

Fact Check Tools API

solana-foundation

~$0 USDC per call · Probed (measured by harness) · p95 58 ms · 0% success

Fact-checking with persistent memory — VERITY remembers prior claims your agent has checked and skips repeat lookups, saving tokens across sessions. Returns CURRENT/OUTDATED/DISPUTED/UNVERIFIABLE verd

verity.basechainlabs.com

Priced per call (estimate pending) · Seed (curated, not yet probed)

fal.ai

paysponge

~$0.01 USDC per call · Seed (curated, not yet probed)

Fast link preview extractor — returns OpenGraph/Twitter Card metadata (title, description, image, favicon, site name, canonical URL, language) for any public URL. Perfect for agents that need to scan

bazaar-gateway.vercel.app

Priced per call (estimate pending) · Seed (curated, not yet probed)

Fast, deterministic extraction of existing schema.org JSON-LD from any URL ($0.005). No AI. Fast-paths for Google Patents and academic publishers. x402 payments are non-refundable. Known-difficult dom

jsonrecon.com

Priced per call (estimate pending) · Seed (curated, not yet probed)

Fetch a public URL and return a compact, normalized page profile with title, description, canonical URL, preview image, Open Graph coverage, JSON-LD hints, metadata quality, preview readiness, and lik

seller.toolsplane.com

Priced per call (estimate pending) · Seed (curated, not yet probed)

Fetch real-time Cointelegraph crypto news (source, count, articles[] with id, post_url, postTranslate, category, author, postBadge, full_text, views). Latest feed or search by "bitcoin", "ethereum", "

news.apitoll.cloud

Priced per call (estimate pending) · Seed (curated, not yet probed)

Fetch trading activity (merges, splits, redeems) for a user

blockrun.ai

Priced per call (estimate pending) · Seed (curated, not yet probed)

Fetch x402 discovery documents, rank matching resources by advertised price, live-check the cheapest candidates with 402 quote inspection, and return a buyer-ready shortlist with verified amount, sche

gpt55.558686.xyz

Priced per call (estimate pending) · Seed (curated, not yet probed)

Fetches real finance news and returns an English Markdown report.

pay.alephant.io

Priced per call (estimate pending) · Seed (curated, not yet probed)

Fia Signals x402 Base USDC token safety and smart contract risk batch API for buyer agents, trading bots, swap routers, and A2A commerce. Screen up to 5 Base/EVM contracts before a swap for contract r

x402.fiasignals.com

Priced per call (estimate pending) · Seed (curated, not yet probed)

Financial news sentiment API for AI agents. Covers market mood, bullish or bearish tone, risk-on or risk-off shifts, and policy-driven sentiment changes. Structured signals with credibility scoring. P

signalsfeed.com

~$0.01 USDC per call · Seed (curated, not yet probed)

Financial Signal Intelligence for autonomous agents across crypto, stocks, ETFs, macro and global financial markets. Analyze financial news, market rumors, earnings announcements, central bank decisio

demo.aiapi.ch

Priced per call (estimate pending) · Seed (curated, not yet probed)

Financial Signal Intelligence for autonomous agents across crypto, stocks, ETFs, macro and global financial markets. Analyze financial news, market rumors, earnings announcements, central bank decisio

api.aiapi.ch

Priced per call (estimate pending) · Seed (curated, not yet probed)

Find an EPUB download link for a book by title using the BookBot agent. Searches Anna's Archive and returns a direct download URL in natural-language text.

book-bot.app

Priced per call (estimate pending) · Seed (curated, not yet probed)

Find common set elements without revealing full sets. ECDH-PSI.

compute.siliq.io

Priced per call (estimate pending) · Seed (curated, not yet probed)

Find semantically similar prediction markets given an event_ticker.

api.predictionmarketdata.io

Priced per call (estimate pending) · Seed (curated, not yet probed)

Find verified work and/or personal emails for a LinkedIn profile across multiple data providers (Aleads, Apollo, Nymeria, ContactOut). Optional Hunter.io verification. Returns in <5s.

scoop-api-production.up.railway.app

Priced per call (estimate pending) · Seed (curated, not yet probed)

For site owners auditing AI readability: returns the clean markdown an LLM extracts from your page after nav, ads, and scripts are stripped. See what survives for AEO and AI search; respects robots.tx

minifetch.com

Priced per call (estimate pending) · Seed (curated, not yet probed)

Frontier chat completions via Telnyx Inference (MiniMax M2.7). OpenAI-compatible. $0.003 USDC per call — no API key, no signup, pay per request.

x402.telnyx.com

Priced per call (estimate pending) · Seed (curated, not yet probed)

Full AI search visibility audit — AEO/GEO/SEO 4-layer strategy, AI inclusion check, schema gaps, llms.txt review, P1/P2/P3 roadmap. 1.00 USDC.

aeonos.basechainlabs.com

Priced per call (estimate pending) · Seed (curated, not yet probed)

Full clearinghouse state for a Hyperliquid wallet: positions, margin, PnL, leverage, liquidation prices.

hl-portfolio.api.klymax402.com

Priced per call (estimate pending) · Seed (curated, not yet probed)

Full editorial article (Melvea Fine Print): clean markdown body + metadata + entity pointers into the paid catalog/citations/recommend surfaces. Melvea-authored pieces only; external news items are at

api.melvea.com

Priced per call (estimate pending) · Seed (curated, not yet probed)

GDELT News Intelligence API

news-x402.com

~$0.01 USDC per call · Seed (curated, not yet probed)

Generate a cryptographically secure random integer within a range

rng.sociologic.ai

Priced per call (estimate pending) · Seed (curated, not yet probed)

Generate a PDF from structured data — no source document needed. Supply data plus a curated-library template id (or inline DSL); output is a tagged, accessible PDF/UA-1 + PDF/A-2A document.

makespdf.com

Priced per call (estimate pending) · Seed (curated, not yet probed)

Generate a QR code as a PNG or SVG: POST the text or URL to encode (with an optional size from 64 to 2048px) and get back the image. Useful for any "scan to view" moment — signage, business cards, sli

qr.wdh.sh

Priced per call (estimate pending) · Seed (curated, not yet probed)

Generate a real estate underwriting memo with strategy fit across Section 8, long-term rental, BRRRR, fix-and-flip, small multifamily, and wholesale, plus rent support, cash flow, ROI, risk context, h

sect8.xyz

Priced per call (estimate pending) · Seed (curated, not yet probed)

Generate an affiliate tracking link — pay $0.01 USDC per link

api.syndicatelinks.co

Priced per call (estimate pending) · Seed (curated, not yet probed)

Generate an AI image from a text prompt via AgentGram

www.agentgram.site

Priced per call (estimate pending) · Seed (curated, not yet probed)

Generate an AI image from a text prompt. $0.10 USDC on Base. Returns image URL.

imagegen.coinopai.com

Priced per call (estimate pending) · Seed (curated, not yet probed)

Generate standard QR code from text or URL in PNG, SVG, or Base64 format

qr.x402tools.xyz

Priced per call (estimate pending) · Seed (curated, not yet probed)

Generative Language API (Gemini)

solana-foundation

~$0 USDC per call · Seed (curated, not yet probed)

Geolocate any IPv4 or IPv6 address to city, region, country, latitude/longitude, timezone, and ISP — returns structured location data so agents can localize content, detect VPNs, enforce geo-restricti

netintel-production-440c.up.railway.app

Priced per call (estimate pending) · Seed (curated, not yet probed)

Get a client token for direct upload to Vercel Blob

stablestudio.io

Priced per call (estimate pending) · Seed (curated, not yet probed)

Get a client token for direct upload to Vercel Blob

stablestudio.dev

Priced per call (estimate pending) · Seed (curated, not yet probed)

Get a Firebase ID token for authenticating with the callable APIs

x402endpoint-utiwoa54hq-uc.a.run.app

Priced per call (estimate pending) · Seed (curated, not yet probed)

Get a prepaid card for use inside the United States

laso.finance

Priced per call (estimate pending) · Seed (curated, not yet probed)

Get a random motivational fortune from YOLObster. No parameters needed.

yolobster.creatormagic.ai

Priced per call (estimate pending) · Seed (curated, not yet probed)

Get address labels and entity information — exchange name, protocol, contract type, category.

mcp.usdtbanlist.com

Priced per call (estimate pending) · Seed (curated, not yet probed)

Get aggregated whale positions on Hyperliquid

hyperliquid-whales.api.klymax402.com

Priced per call (estimate pending) · Seed (curated, not yet probed)

Get DeFi balances (Liquidity Pools, Yield Farming, Lending, etc.) for a single address, or a list of addresses.

public.zapper.xyz

Priced per call (estimate pending) · Seed (curated, not yet probed)

Get gas price estimates across multiple EVM chains with USD cost

gas-estimator.api.klymax402.com

Priced per call (estimate pending) · Seed (curated, not yet probed)

Get latest crypto news with sentiment scores and token mentions

crypto-news.api.klymax402.com

Priced per call (estimate pending) · Seed (curated, not yet probed)

Get liquidation risk levels for DeFi lending protocols

liquidation-oracle.api.klymax402.com

Priced per call (estimate pending) · Seed (curated, not yet probed)

Get list of all available CryptoSlate content URLs with their last updated dates

library.proofivy.com

Priced per call (estimate pending) · Seed (curated, not yet probed)

Get real-time Best Bid/Ask for any FX pair, aggregated from multiple institutional liquidity providers. 62-88% tighter spreads than any single source. Includes quality metadata (fresh_sources, quality

tick.hugen.tokyo

Priced per call (estimate pending) · Seed (curated, not yet probed)

Get real-time stock quote with price, change, volume, and market cap

stock-price.api.klymax402.com

Priced per call (estimate pending) · Seed (curated, not yet probed)

Get real-time USDC to EUR settlement estimate. Returns exchange rate, EUR amount, fees, and estimated SEPA delivery time. The only x402 endpoint offering EUR fiat settlement.

x402.asterpay.io

~$0.005 USDC per call · Seed (curated, not yet probed)

Get recently launched tokens on Solana with market data

solana-launches.api.klymax402.com

Priced per call (estimate pending) · Seed (curated, not yet probed)

Get Smart Money Netflow Data

api.nansen.ai

Priced per call (estimate pending) · Seed (curated, not yet probed)

Get the indicative price for a swap using Allowance Holder to set allowances

agent-proxy.alchemy.com

Priced per call (estimate pending) · Seed (curated, not yet probed)

Get the Japanese (JP) weather forecast for a region — today's conditions, near-term outlook, and a 7-day weekly forecast with temperatures and precipitation probability. Sourced live from 気象庁 (Japan M

weather.agentic-jp.com

Priced per call (estimate pending) · Seed (curated, not yet probed)

Get the most recent reported position of an aircraft by flight number or registration (tail): latitude, longitude, altitude (ft), track (deg), and ground speed (kt), along with callsign, type, and ori

aviationapis.com

Priced per call (estimate pending) · Seed (curated, not yet probed)

Get the recipient bank-detail fields required to pay out in a given currency. Returns dynamic field descriptors (text/select/radio/date) with validation rules and allowed values, grouped by account ty

try.madhousewallet.com

Priced per call (estimate pending) · Seed (curated, not yet probed)

Global crypto market overview — total market cap, 24h volume, Bitcoin dominance, and active coins. $0.001 USDC per call.

api.tickersfeed.net

~$0.001 USDC per call · Seed (curated, not yet probed)

Global law search across JP/US/UK/EU legislation databases

law-mcp.toulaw.workers.dev

Priced per call (estimate pending) · Seed (curated, not yet probed)

Google Civic Information API

solana-foundation

~$0 USDC per call · Probed (measured by harness) · p95 68 ms · 0% success

Google News search. Returns latest news articles with title, source, date, and summary. Real-time news monitoring for any topic.

serp-x402.vercel.app

Priced per call (estimate pending) · Seed (curated, not yet probed)

Graph schema definition — entry point for agents to discover available data

risk.yo.xyz

Priced per call (estimate pending) · Seed (curated, not yet probed)

Greenwood Financial Intelligence

greenwood.financial

~$0.002 USDC per call · Seed (curated, not yet probed)

Hash anchor (verify): flat $0.01 per request. Verify file SHA-256 against Base tx calldata (sizeBytes required for POST upload). Pay with x402 (Base USDC). HTTP shape: extensions.bazaar on the 402. Ca

app.cusethejuice.com

Priced per call (estimate pending) · Seed (curated, not yet probed)

Historical weather and climate database. Access daily temperature highs, lows, total precipitation (rain/snow), wind speeds, and cloud conditions for any coordinates or city worldwide. Essential for g

vibesprings.net

Priced per call (estimate pending) · Seed (curated, not yet probed)

Hosted wallet portfolio totals for EVM agents: native balance, curated token totals, freshness, provenance, and risk flags before routing funds. Price 0.20 USDC on Base via x402. Demo: https://wallet-

wallet-portfolio-history-mcp.mtree.workers.dev

Priced per call (estimate pending) · Seed (curated, not yet probed)

Human taste on-demand: create text or image polls for World ID-verified humans, pay per response with x402, and retrieve aggregate results through the Quali API.

www.getquali.com

Priced per call (estimate pending) · Seed (curated, not yet probed)

Human verification for AI agents — proof of humanity, sybil resistance, and 'is this wallet a real person' answers in one paid call. Returns two ZK-style outputs about any EVM wallet: (1) total humani

human.twin3.ai

Priced per call (estimate pending) · Seed (curated, not yet probed)

Hyperliquid perp funding rate read from the data lake: latest hourly rate, annualized projection, 24h/7d annualized means, and sign streaks.

api.perquants.com

Priced per call (estimate pending) · Seed (curated, not yet probed)

Independent, audit-friendly Mode A evidence review of coding-agent run evidence. Read-only: does not apply patches, run tests, or claim verified execution.

contessa-awkward-vocatively.ngrok-free.dev

Priced per call (estimate pending) · Seed (curated, not yet probed)

Instant weather by city name — temperature, feels-like, humidity, wind speed, precipitation, and condition. Just pass a city name; geocoding, data fetching, and response structuring are handled in one

weather.hugen.tokyo

Priced per call (estimate pending) · Seed (curated, not yet probed)

Insurance DOI Bulletin Feed (x402)

api.dynsuplabs.com

~$0.001 USDC per call · Seed (curated, not yet probed)

invinoveritas /browse — the scaffold's HANDS (web): Browser-as-a-Service — fetch, text extraction, Playwright screenshots, multi-step click/type/navigate in an

api.babyblueviper.com

Priced per call (estimate pending) · Seed (curated, not yet probed)

IXS Real world asset vaults — 6% yields, BlackRock exposure, tokenized on-chain

api-v2.ixs.finance

Priced per call (estimate pending) · Seed (curated, not yet probed)

Japanese baseball (NPB) win probability oracle. Returns home_win_prob (0-1), predicted_winner (team name), confidence (low/mid/high), and starting pitcher matchup for each game on the given date. XGBo

oracle-api-production-766f.up.railway.app

Priced per call (estimate pending) · Seed (curated, not yet probed)

kenoodl is an orthogonal synthesis engine that maps your context against cross-domain pattern libraries outside your training data. Returns the structural read no model can assemble.

kenoodl.com

Priced per call (estimate pending) · Seed (curated, not yet probed)

Knowledge Graph Search API

solana-foundation

~$0 USDC per call · Probed (measured by harness) · p95 68 ms · 0% success

Korean exchange prices (Upbit, Bithumb) for a single token in KRW

api.printmoneylab.com

Priced per call (estimate pending) · Seed (curated, not yet probed)

LastLook Data — historical daily exchange rates for a G10 currency pair.

api.lastlookdata.com

Priced per call (estimate pending) · Seed (curated, not yet probed)

Latest AIS position for one vessel by IMO. Returns lat/lon (WGS84), speed over ground (`sog`, knots), course over ground (`cog`, degrees true 0-360), AIS destination string (free-form, operator-entere

war-tracker.com

Priced per call (estimate pending) · Seed (curated, not yet probed)

Latest weekly price row for a Stock Trends symbol, including adjusted close, weekly high/low, volume (actual shares traded), trades, and price change.

api.stocktrends.com

Priced per call (estimate pending) · Seed (curated, not yet probed)

LAxMI Capital — fund NAV snapshot. Total AUM, per-strategy P&L breakdown, and high-water mark. Refreshed every cycle by the nav-bot. Verifiable against on-chain Base/Solana balances.

15.204.116.192.nip.io

~$0.05 USDC per call · Seed (curated, not yet probed)

LedgerBrain x402 KYA KYT KYE Compliance API

ledgerbrain.io

~$1 USDC per call · Seed (curated, not yet probed)

Lightweight liquidation-alert slice for one EVM address and chain, combining Aave V3 health factor and Compound III liquidation status into urgency and drop-to-liquidation thresholds. Returns JSON. Pr

wallet-portfolio-risk-mcp.mtree.workers.dev

Priced per call (estimate pending) · Seed (curated, not yet probed)

LinkedIn people, companies, posts, job listings, people search.

hirescrape.com

Priced per call (estimate pending) · Seed (curated, not yet probed)

LiquidPad

www.liquidpad.site

~$0.001 USDC per call · Seed (curated, not yet probed)

List all 454 spot tokens on Hyperliquid with metadata: name, tokenId, index, decimals, wei decimals.

hl-spot.api.klymax402.com

Priced per call (estimate pending) · Seed (curated, not yet probed)

List all open quests on Origin Protocol with bounty, category, minGrade, repStake, and deadline. Used by agents to discover work and by external observers to monitor quest activity.

protocol.origindao.ai

Priced per call (estimate pending) · Seed (curated, not yet probed)

List or search SAN agents. Returns each agent's id, externalId, name, slug, domain, and description — useful for discovering which ref to pass to the agent-scoped endpoints.

gateway.sanfoundation.com

Priced per call (estimate pending) · Seed (curated, not yet probed)

Live market-state data for one crypto pair: BUY/SELL/HOLD state + confidence from a multi-timeframe engine. Machine-readable, ECDSA-signed. Input data for AI finance agents (USDC pay-per-call).

signals.nsgoods.org

Priced per call (estimate pending) · Seed (curated, not yet probed)

Live x402 services feed: the discovery catalog's active edge, deduplicated and liveness-probed — know a service is up and correctly demanding payment before you pay it.

fresh-feeds.foomworks.workers.dev

Priced per call (estimate pending) · Seed (curated, not yet probed)

Live YouTube scraping

api.influship.com

Priced per call (estimate pending) · Seed (curated, not yet probed)

LLM inference

llm402.ai

Priced per call (estimate pending) · Seed (curated, not yet probed)

LLM-generated narrative recap of recent prediction-market activity.

d2ngmd5yvdfkqu.cloudfront.net

Priced per call (estimate pending) · Seed (curated, not yet probed)

Look up a Harris County property by its HCAD account number.

x402datasource.com

Priced per call (estimate pending) · Seed (curated, not yet probed)

Look up a Twitter/X user profile by their screen name. Returns full profile data including id, name, username, bio, follower count, following count, tweet count, verification status, and profile image

x402.twit.sh

Priced per call (estimate pending) · Seed (curated, not yet probed)

Look up a Twitter/X user profile by their screen name. Returns full profile data including id, name, username, bio, follower count, following count, tweet count, verification status, and profile image

twit-api-production-de12.up.railway.app

Priced per call (estimate pending) · Seed (curated, not yet probed)

Look up DNS records for any domain — A, AAAA, MX, NS, TXT, CNAME, SOA. Use for domain diagnostics, mail server lookup, DNS resolution, and domain verification.

dns.x402tools.xyz

Priced per call (estimate pending) · Seed (curated, not yet probed)

Look up Japanese (JP) address candidates for a 7-digit postal code (郵便番号), backed by the official Japan Post KEN_ALL dataset. One postal code can map to several towns; all candidates are returned with

address.agentic-jp.com

Priced per call (estimate pending) · Seed (curated, not yet probed)

Look up the current owner of an ERC721 NFT by token_id via ownerOf (eth_call)

api.onesource.io

Priced per call (estimate pending) · Seed (curated, not yet probed)

M2M Trust deterministic analysis tool: Lean Six Sigma SPC audit for a current value against control limits and recent history.

energybilltoolkit.co.uk

Priced per call (estimate pending) · Seed (curated, not yet probed)

MadeOnSol

madeonsol.com

~$0.005 USDC per call · Seed (curated, not yet probed)

Mid-tier OpenAI-compatible chat completion. Qwen3 235B (instruct/thinking/VL/next), DeepSeek V3.2, venice-uncensored 1.2, GLM 4.6/4.7, Kimi K2.5, Mistral Small 2603, MiniMax M27, Gemma 4 26B. Supports

x402.dellbot.win

Priced per call (estimate pending) · Seed (curated, not yet probed)

MiroShark: run a multi-agent social-media simulation. Submit a prompt or scenario, get back a URL where you can watch a 25-agent simulation play out across Twitter, Reddit, and Polymarket over 10 roun

x402.miroshark.xyz

Priced per call (estimate pending) · Seed (curated, not yet probed)

MiroShark: run a multi-agent social-media simulation. Submit a prompt or scenario, get back a URL where you can watch a 25-agent simulation play out across Twitter, Reddit, and Polymarket over 10 roun

miroshark-x402-production.up.railway.app

Priced per call (estimate pending) · Seed (curated, not yet probed)

MLB game schedule for any date or team — matchups, scores, venues, and status. Filter by date (YYYY-MM-DD) or teamId to find specific games.

fanfare.run

Priced per call (estimate pending) · Seed (curated, not yet probed)

Monitor whale movements including buys, sells, and transfers for any token

silverback-x402.onrender.com

Priced per call (estimate pending) · Seed (curated, not yet probed)

Multi-chain EVM gas snapshot via direct RPC eth_feeHistory across 17 chains (Ethereum, Base, Optimism, Arbitrum, Polygon, Avalanche, BSC, Gnosis, Fantom, Linea, Scroll, Blast, Mode, opBNB, Celo, zkSyn

evm-gas.apitoll.cloud

Priced per call (estimate pending) · Seed (curated, not yet probed)

Munition Airport Search: x402-paid airport reference data search for AI agents. Pay 0.001 USDC to search airports by IATA code, city, airport name, or country and receive normalized IATA airport recor

api.munition.io

Priced per call (estimate pending) · Seed (curated, not yet probed)

Name in, official IDs out. Give it a company or crypto name or ticker ("Apple", "ETH", "Stripe") and get the verified IDs that identify it everywhere: SEC CIK + ticker, GLEIF LEI, Wikidata QID, CoinGe

x402-entity-resolver-production.up.railway.app

Priced per call (estimate pending) · Seed (curated, not yet probed)

Name in, official IDs out. Give it a company or crypto name or ticker ("Apple", "ETH", "Stripe") and get the verified IDs that identify it everywhere: SEC CIK + ticker, GLEIF LEI, Wikidata QID, CoinGe

entityresolver.xyz

Priced per call (estimate pending) · Seed (curated, not yet probed)

Nearby bus stops with real-time arrival predictions

transit402.dev

Priced per call (estimate pending) · Seed (curated, not yet probed)

Node4All Fortune — deterministic fortune reading derived from the x402 payment authorization nonce. Flagship demo of the Node4All x402 v2 payment flow. Operator: Node4All (https://node4all.com). Curre

api.node4all.com

Priced per call (estimate pending) · Seed (curated, not yet probed)

Node4All Fortune — deterministic fortune reading derived from the x402 payment authorization nonce. Flagship demo of the Node4All x402 v2 payment flow. Operator: Node4All (https://node4all.com). Curre

sandbox.node4all.com

Priced per call (estimate pending) · Seed (curated, not yet probed)

Nordic listed company due diligence — financials, XBRL filings, risk factors and news for companies listed on Oslo Børs, Nasdaq Stockholm, Copenhagen, Helsinki and Iceland

alfred.aidatanorge.no

Priced per call (estimate pending) · Seed (curated, not yet probed)

Normalized SEC EDGAR filings (10-K, 10-Q, 8-K). Resolve by ticker or CIK. Returns the rich envelope (resolved company, items[], truncation, source). Backed by data.sec.gov submissions. Form 4 + 13F-HR

edgar.apitoll.cloud

Priced per call (estimate pending) · Seed (curated, not yet probed)

Nyne AI

paysponge

~$0 USDC per call · Seed (curated, not yet probed)

OATP · tx_explainer — Fetch a Solana transaction by signature and return a human-readable explanation: programs invoked, token balance changes, fee (SOL + USD), and a one-line summary.

api.oatp.cc

Priced per call (estimate pending) · Seed (curated, not yet probed)

Octodamus Market Intelligence API — real-time crypto signals, Fear & Greed, Polymarket edge. Annual access.

api.octodamus.com

~$0.01 USDC per call · Seed (curated, not yet probed)

On-demand brand visibility audit in AI answers: real buyer questions run live through an LLM for any brand + category — mention rate, AI visibility score 0-100, which competitors AI recommends instead

store.agentexchange.work

Priced per call (estimate pending) · Seed (curated, not yet probed)

Onchain data router for AI agents. Plain-English → working GraphQL or REST. 15.5K+ subgraphs on 8 chains. Uniswap, Aave, Compound, ENS, Polymarket, Limitless, Predict.fun, ERC-8004 discovery. Identifi

graphadvocate.com

Priced per call (estimate pending) · Seed (curated, not yet probed)

Onchain loyalty platform on Base Network. Businesses launch branded rewards in minutes. Customers earn real value with every purchase. AI agents automate the rest.

api.loyalspark.online

~$0.001 USDC per call · Seed (curated, not yet probed)

One machine-readable Zion Skank creative license artifact sold for $1 USDC on Base mainnet.

x402-paid-endpoint.selfradiance.workers.dev

Priced per call (estimate pending) · Seed (curated, not yet probed)

OpenAI-compatible chat completions backed by DeepSeek. Answers open-ended questions and returns reasoned analysis. Pass standard {messages: [...]} body. Returns OpenAI-style choices array.

masterclaw.dev

Priced per call (estimate pending) · Seed (curated, not yet probed)

OptimAI Search: an agent-ready decentralized search API powered by OptimAI Network nodes. Ask a natural-language question and get real-time, citation-backed search results across web, social, and cryp

api-onchain.optimai.network

Priced per call (estimate pending) · Seed (curated, not yet probed)

OT/ICS patch feasibility assessment for a CVE ID. Pass ?id=CVE-XXXX-XXXX. Returns patch availability (from NVD references), vendor advisory URLs, OT-safe workarounds, patch complexity for the affected

ot-intel-api.onrender.com

Priced per call (estimate pending) · Seed (curated, not yet probed)

Owner name, years held, aging signal from 100K+ deed records

api.northeastdealintel.com

Priced per call (estimate pending) · Seed (curated, not yet probed)

Paid Aave V3 liquidation-risk verdict for agents before they borrow, lever, liquidate, or allow autopay. Returns buyer_decision, evidence_summary, execution_policy, next_action, live health factor, an

liquidation-risk-mcp.mtree.workers.dev

Priced per call (estimate pending) · Seed (curated, not yet probed)

Paid agent card and well-known validator route for autonomous agents. Returns JSON with provenance, route-specific evidence, and machine-readable fields. Price 0.05 USDC on Base via x402. Demo/preview

agent-card-validator-mcp.mtree.workers.dev

Priced per call (estimate pending) · Seed (curated, not yet probed)

Paid agent discovery readiness audit route for autonomous agents. Returns JSON with provenance, route-specific evidence, and machine-readable fields. Price 0.05 USDC on Base via x402. Demo/preview: ht

wellknown-audit-corpus.mtree.workers.dev

Priced per call (estimate pending) · Seed (curated, not yet probed)

Paid agent payment error diagnosis route for autonomous agents. Returns JSON with provenance, route-specific evidence, and machine-readable fields. Price 0.05 USDC on Base via x402. Demo/preview: http

agent-payment-error-corpus.mtree.workers.dev

Priced per call (estimate pending) · Seed (curated, not yet probed)

Paid JSON for one Substack-backed post: synthesized summary (`synthesizedSummary`), metadata, and identifiers. Path params are `publicationSlug` and `postSlug`. Returns 503 until summary exists. USDC

dripstack.xyz

Priced per call (estimate pending) · Seed (curated, not yet probed)

Paid JSON for one Substack-backed post: synthesized summary (`synthesizedSummary`), metadata, and identifiers. Path params are `publicationSlug` and `postSlug`. Returns 503 until summary exists. USDC

dripstack.com

Priced per call (estimate pending) · Seed (curated, not yet probed)

Paid webhook/API execution for autonomous agents. Executes one public HTTPS action after x402 payment, applies retries and idempotency, then returns a signed receipt with request hash, response hash,

action402.vercel.app

Priced per call (estimate pending) · Seed (curated, not yet probed)

Paid, expiring file hosting for agents: POST a filename and size, get presigned URLs to upload up to 5GB, plus a download link that auto-expires within 7 days. Built for the artifacts that blow past c

files.wdh.sh

Priced per call (estimate pending) · Seed (curated, not yet probed)

Parse any public HTML or PDF URL into clean structured JSON — auto-detects document type (article, invoice, research, generic)

docparse.x402tools.xyz

Priced per call (estimate pending) · Seed (curated, not yet probed)

Pay $0.01 USDC as a small donation or a simple live x402 integration test. Optional name and message are stored publicly and shown on GET /donations. Network: Base Mainnet. Each request records one do

donate.0000402.xyz

Priced per call (estimate pending) · Seed (curated, not yet probed)

Pay $0.01 USDC to ask Omniac, the Omniacs DAO mascot, any question about crypto, data science, or tech. Responses are concise by default. Powered by llama-3.3-70b via Venice.ai. Max question length: 2

omniac.0000402.xyz

Priced per call (estimate pending) · Seed (curated, not yet probed)

Pay $0.01 USDC to create a leaderboard or add, update, or delete one entry. Use a secret leaderboard_key UUID to continue writing to the same board. If value is null, the named entry is deleted. Publi

leaderboard.0000402.xyz

Priced per call (estimate pending) · Seed (curated, not yet probed)

Pay $0.01 USDC to create an immutable timestamped statement. The server assigns recorded_at in UTC. Statements are public, permanent, and cannot be edited. Max body size: 10 KB. Network: Base Mainnet.

stamp.0000402.xyz

Priced per call (estimate pending) · Seed (curated, not yet probed)

Pay $0.01 USDC to make an outbound HTTP request through the proxy. Supports all standard HTTP methods, custom headers (including auth), and JSON or raw bodies. Responses are returned as text or base64

proxy.0000402.xyz

Priced per call (estimate pending) · Seed (curated, not yet probed)

Pay $0.01 USDC to store up to 100 KB of text or code. Returns a token for free retrieval anytime via GET /paste/{token}. Network: Base Mainnet. Each request stores one text or code blob and returns a

pastebin.0000402.xyz

Priced per call (estimate pending) · Seed (curated, not yet probed)

Pay $0.02 USDC to store a file for 7 days. Send filename, optional content_type, and base64-encoded file bytes as JSON. Max file size: 10 MB. Returns a token and a stable GET URL. Network: Base Mainne

tempfile.0000402.xyz

Priced per call (estimate pending) · Seed (curated, not yet probed)

Pay $0.05 USDC to seal up to 100 KB of text until a future date. Content is inaccessible via GET /open/{token} until unlock_at passes. An optional label is visible before unlock via GET /status/{token

timecapsule.0000402.xyz

Priced per call (estimate pending) · Seed (curated, not yet probed)

Pay $0.10 USDC to play the game of chance. 8% chance to win 1.0 USDC. Network: Base Mainnet. Send one EVM wallet address for prize delivery; each request runs one immediate server-side random round an

play.0000402.xyz

Priced per call (estimate pending) · Seed (curated, not yet probed)

Pay $0.10 USDC to schedule a one-shot webhook delivery. Provide a URL and a delay in seconds — the server fires a signed POST to your URL when the timer expires. Automatic retries on failure (up to 3

cron.0000402.xyz

Priced per call (estimate pending) · Seed (curated, not yet probed)

Pay $0.10 USDC to search Giveth projects by donor intent. Send one free-text cause description; each request returns 10 ranked donation recommendations with match explanations. Network: Base Mainnet.

giveth.0000402.xyz

Priced per call (estimate pending) · Seed (curated, not yet probed)

Pay-per-call OpenAI-compatible chat completions backed by Gemini 2.5 Flash / Flash-Lite / Pro, with optional RAG-style vector memory recall and write. No account needed — pay USDC over x402 per reques

api.vectorway.io

Priced per call (estimate pending) · Seed (curated, not yet probed)

Pay-per-joke vending machine: send USDC, get a fresh Claude-generated joke. Optional "theme" picks the topic.

www.x402joker.com

~$0.01 USDC per call · Seed (curated, not yet probed)

Payment for Quicknode RPC access. Options: per-request ($0.001/request), nanopayment ($0.0001/request via Circle Gateway), or credit drawdown with SIWX authentication.

x402.quicknode.com

Priced per call (estimate pending) · Seed (curated, not yet probed)

Payment required: $0.08

api.paytoll.io

Priced per call (estimate pending) · Seed (curated, not yet probed)

Perplexity AI API

paysponge

~$0.01 USDC per call · Seed (curated, not yet probed)

Places API (New)

solana-foundation

~$0.001 USDC per call · Seed (curated, not yet probed)

PolicyCheck premium analysis — full risk assessment with detailed findings

policycheck.tools

Priced per call (estimate pending) · Seed (curated, not yet probed)

PolyOdds Top Signals Snapshot — x402-enabled sports signal intelligence for autonomous agents. Returns up to 3 ranked prediction-market sports signals. Execution is external on Polymarket, Kalshi, or

polyodds.bet

Priced per call (estimate pending) · Seed (curated, not yet probed)

PolySignal paper-trading performance summary, including win rate, ROI, PnL, open trades, settled trades, and tag-level breakdowns.

polymarket-signal-api.pwnker-polymarket-signals.workers.dev

Priced per call (estimate pending) · Seed (curated, not yet probed)

PopaDex Personal Finance Reference API

popadex.com

~$0.01 USDC per call · Seed (curated, not yet probed)

Pre-attack intent signals from Telegram: access sales, 0days, ransomware targeting. Filters: sector, country, organization, intent_type(access_sale|0day|ransomware|exploit), limit. Signals appear befo

telesint-api.onrender.com

Priced per call (estimate pending) · Seed (curated, not yet probed)

Precursor Detection - Catches risk signals before events materialize

x402.blackswan.wtf

Priced per call (estimate pending) · Seed (curated, not yet probed)

Preflight x402 scam check: endpoint risk before you pay — decoy / zombie / price-trap / never-paid? Trust verdict in ~200ms before PAYMENT-SIGNATURE.

x402station.io

Priced per call (estimate pending) · Seed (curated, not yet probed)

Print and mail physical US letters (PDF, HTML, Markdown, DOCX, or image) and postcards via USPS, paid in USDC — with certified/registered proof options and standalone address verification at POST /v1/

postagent-api.interpretai.tech

Priced per call (estimate pending) · Seed (curated, not yet probed)

Private web search for AI agents — zero logging, no tracking, no human signup required. Pay-per-query with USDC, no API keys or accounts. Multi-engine JSON results. Pass q=query, optional count (1-20)

search.reversesandbox.com

Priced per call (estimate pending) · Seed (curated, not yet probed)

Probabilistic decision guidance with built-in accountability. Returns CONSIDER_LONG/SHORT/NO_ACTION, confidence, regime, and a decision_id to verify the outcome via /kronos/audit.

x402.coinopai.com

Priced per call (estimate pending) · Seed (curated, not yet probed)

Protocol TVL, audits, chain distribution from DefiLlama. Pass ?slug=<protocol> for detail or ?list=true for top 50.

api.hyperd.ai

Priced per call (estimate pending) · Seed (curated, not yet probed)

Publish a markdown document as a hosted, shareable HTML page: POST your markdown (with an optional title and TTL) and get back a public URL. Good for when an agent produces a plan, guide, review, or r

md.wdh.sh

Priced per call (estimate pending) · Seed (curated, not yet probed)

Purch

purch

~$0.01 USDC per call · Seed (curated, not yet probed)

Quick Signal TA v3.1.0 — Crypto technical analysis. Ten indicators with natural-language assessments. Query params: token (required), timeframe, bollinger_period, rsi_period.

signal.quickai.build

Priced per call (estimate pending) · Seed (curated, not yet probed)

Quick ZK Auth v1.0.1 — Semaphore ZK wallet ownership on Base plus USDC balance attestation at snapshot block (not ZK-hidden balance in v1). ERC-8004 bundles with x402 payment binding.

zk.quickai.build

Priced per call (estimate pending) · Seed (curated, not yet probed)

Ranked cross-venue funding-rate arbitrage scanner: in a single call it scans hundreds of perpetual-futures pairs and surfaces those whose funding spread between venues exceeds a caller-set basis-point

api.algovault.com

Priced per call (estimate pending) · Seed (curated, not yet probed)

Reactions and comments for a LinkedIn post

api.linkedpanda.com

Priced per call (estimate pending) · Seed (curated, not yet probed)

Read the aura of anything — color, tier (S/A/B/C/D/F), score 0-9999, description. $0.01 USDC.

chat.anchor-x402.com

Priced per call (estimate pending) · Seed (curated, not yet probed)

Real-time at-risk DeFi borrowers across Aave V3, Morpho, Comet, Euler V2, Fluid, Moonwell, Spark on 11 EVM chains. Returns health factor, collateral, debt, and protocol. Updated every 5 minutes from t

liquita-x402-edge.liquita.workers.dev

~$0.001 USDC per call · Seed (curated, not yet probed)

Real-time Base mainnet gas prices via direct RPC eth_feeHistory — slow/standard/fast tiers (max_fee_per_gas + max_priority_fee_per_gas in gwei), current EIP-1559 base fee, latest block number, and med

gas.apitoll.cloud

Priced per call (estimate pending) · Seed (curated, not yet probed)

Real-time blockchain security analysis across 30+ EVM chains with sanctions screening and risk detection.

centry.cybercentry.co.uk

Priced per call (estimate pending) · Seed (curated, not yet probed)

Real-time company fundamentals for Korean & global stocks. Returns market cap, PER, PBR, ROE, revenue, operating profit, net income, and latest stock price.

x402.deepsearch.com

Priced per call (estimate pending) · Seed (curated, not yet probed)

Real-time crypto market news with sentiment analysis and top headlines ranked by importance.

x402.ottoai.services

Priced per call (estimate pending) · Seed (curated, not yet probed)

Real-time delay and operational status for a Japanese (JP) train station — per-line status (normal / delayed / suspended), estimated delay minutes, and cause — plus a one-line summary in English and J

transit.agentic-jp.com

Priced per call (estimate pending) · Seed (curated, not yet probed)

Real-time GBLIN protocol state: NAV in USD, basket composition with dynamic weights, and Crash Shield status.

gblin.digital

Priced per call (estimate pending) · Seed (curated, not yet probed)

Real-time on-chain payment verification and check via Base RPC. Returns structured signals: verified status, amount, sender, recipient, transaction confirmation, block number. Pay $0.005 USDC per chec

payment-verifier-cdp.relayhop.workers.dev

Priced per call (estimate pending) · Seed (curated, not yet probed)

Real-time single-ticker price quote.

stablefinance.dev

Priced per call (estimate pending) · Seed (curated, not yet probed)

Real-time trade stream with market summaries (2hr rolling window, $500+ trades)

polynews.news

Priced per call (estimate pending) · Seed (curated, not yet probed)

Real-time web search API for AI agents. Returns ranked organic results (title, link, snippet) as JSON from a resilient multi-engine metasearch (Bing, Brave, DuckDuckGo, Wikipedia, Mojeek). Pay-per-que

api-production-17e1.up.railway.app

Priced per call (estimate pending) · Seed (curated, not yet probed)

Reddit trending — hot posts from r/popular. What Reddit is talking about right now.

btcnode.uk

Priced per call (estimate pending) · Seed (curated, not yet probed)

Reloadpi — List all available voucher brands including Amazon, Google Play, Netflix and more

api.reloadpi.com

Priced per call (estimate pending) · Seed (curated, not yet probed)

Render any public web page to PDF by URL. Loads the page in headless Chromium (waits for network idle), then returns application/pdf with configurable format, orientation, margins, and viewport. Priva

x402.nichospt.net

Priced per call (estimate pending) · Seed (curated, not yet probed)

RentCast API

paysponge

~$0.01 USDC per call · Seed (curated, not yet probed)

Resolve a public web page into clean markdown and metadata for autonomous agents.

fetchdelta.com

Priced per call (estimate pending) · Seed (curated, not yet probed)

Resolves an ENS name into its addresses, text records, and content hash, with batch support up to 50 names and per-name chain scoping via interop addresses.

api.justaname.id

Priced per call (estimate pending) · Seed (curated, not yet probed)

Return live Solana priority-fee estimates from Helius for global, Jupiter, Raydium, or caller-supplied account keys. Includes all fee levels in micro-lamports per compute unit, freshness, coverage, an

scry.solanahub.de

Priced per call (estimate pending) · Seed (curated, not yet probed)

Returns a ranked, deadline-aware list of open Base ecosystem funding programs (grants, accelerators, hackathons, retro-funding). Each result cites source_url, deadline, funding_range_usd, and last_ver

agentic.clawbots.org

Priced per call (estimate pending) · Seed (curated, not yet probed)

Returns clean, normalized datasets of AI model benchmarks, pricing, leaderboard scores, and Ethereum EIPs, parsed from sources that are costly to scrape.

voidfeed.ai

Priced per call (estimate pending) · Seed (curated, not yet probed)

Returns proxy credentials for a geo-targeted exit IP. Residential, mobile/5G, SOCKS5, WireGuard. 249 countries, mid-session geo-swap. No signup.

api.agentcamo.xyz

Priced per call (estimate pending) · Seed (curated, not yet probed)

Returns the most recent Base ERC-20s opened on Aerodrome that pass a basesafe safety check. Buyers specify min score, allowed recommendations, and a local liquidity floor. basescout pays basesafe unde

basescout-feed-x402.baseagentx402.workers.dev

Priced per call (estimate pending) · Seed (curated, not yet probed)

Returns the newest tokens minted on the blockchain based on mint timestamp, filtered by an activity window and optional category.

api.slamai.dev

~$0.001585 USDC per call · Seed (curated, not yet probed)

Returns trending tokens across the entire blockchain for a specified activity window and optional category. The size of the increase in active wallets over the activity window determines the token's t

slamlink-ai-main-50fbb45.d2.zuplo.dev

~$0.001 USDC per call · Seed (curated, not yet probed)

Rolling index of NIP-90 Data Vending Machine activity on Nostr. Shows what AI/data services agents are paying each other for right now — the sats-denominated agent-economy leading indicator. Per-kind

nostrpulse.xyz

Priced per call (estimate pending) · Seed (curated, not yet probed)

Run a fast live probe for one x402 endpoint and summarize challenge/payment-flow readiness.

trust402.aztecbeacon.uk

Priced per call (estimate pending) · Seed (curated, not yet probed)

Run a fast live probe for one x402 endpoint and summarize challenge/payment-flow readiness.

trust402.vercel.app

Priced per call (estimate pending) · Seed (curated, not yet probed)

Run a pre-flight guardrail for MCP tools, payments, writes, and workflows; return allow/retry/block plus a Boundary Receipt.

boundary-guard-x402.onrender.com

Priced per call (estimate pending) · Seed (curated, not yet probed)

Scan funding rate arbitrage opportunities across perpetual exchanges

funding-arb.api.klymax402.com

Priced per call (estimate pending) · Seed (curated, not yet probed)

Scanner for AI search visibility (AEO, GEO) and agent readiness — audits JSON-LD Schema.org structured data, meta tags, robots.txt, llms.txt, sitemap, content quality, and agent-discovery signals for

scan.convrgent.ai

Priced per call (estimate pending) · Seed (curated, not yet probed)

Score a payTo wallet, domain, or resource for observed revenue proof, buyer breadth, metadata quality, registry coverage, and route reliability. Price 0.05 USDC on Base via x402. Free preview: https:/

x402-market-intel-mcp.mtree.workers.dev

Priced per call (estimate pending) · Seed (curated, not yet probed)

Scored intelligence on freshly-launched Base tokens: safety + momentum → composite score and an AVOID/WATCH/HOT decision per launch. One call returns a ranked list.

rugsense.xyz

Priced per call (estimate pending) · Seed (curated, not yet probed)

Screen a domain name for phishing, fraud, and scam association in the C3 community database. Returns risk score and matching report details.

blockint.ai

Priced per call (estimate pending) · Seed (curated, not yet probed)

Screen a wallet address or entity / alias name against the OFAC SDN list. Returns 503 if the list has never loaded (deny-on-error policy).

ofacs-test-ene3pdnjwq-uc.a.run.app

Priced per call (estimate pending) · Seed (curated, not yet probed)

Screen an entity or alias name against the OFAC SDN list. Exact match on a normalised string only (trim, collapse whitespace, NFC, casefold). Returns 503 if the list has never loaded (deny-on-error po

induction.aarei.ai

Priced per call (estimate pending) · Seed (curated, not yet probed)

Screen any person, company, or entity against OpenSanctions -- 1.3M+ entries from OFAC SDN, EU Sanctions, UN List, and 330+ sources. Returns sanctioned: true/false, entity type, risk topics (sanction,

scan.madhousewallet.com

Priced per call (estimate pending) · Seed (curated, not yet probed)

Screenshot any public URL — returns base64 JPEG/PNG with metadata (page title, file size, render time). Full-page scroll capture, CSS selector targeting, device emulation (iPhone 15 Pro, Pixel 7, iPad

visual.hugen.tokyo

Priced per call (estimate pending) · Seed (curated, not yet probed)

ScreenshotOne

paysponge

~$0.02 USDC per call · Seed (curated, not yet probed)

SDK capabilities query ($0.01/request direct, or $0.003/request via Session Ticket at /v1/billing/tickets)

api.agentinternetruntime.com

Priced per call (estimate pending) · Seed (curated, not yet probed)

Search current Japanese (JP) National Diet members by name (kanji, kana, or romaji), party, or constituency. Returns matching members with their canonical ids for use with GET /members/:id. Use to res

diet.agentic-jp.com

Priced per call (estimate pending) · Seed (curated, not yet probed)

Search GAMEMAXXING's video games and gaming knowledge base for game concepts across game design, game business, game culture, and gaming history, then return ranked JSON hits with full content first a

gamemaxxing.baes.so

Priced per call (estimate pending) · Seed (curated, not yet probed)

Search Google Flights for flight offers. Returns best flights, other flights, price insights, and airport info.

stabletravel.dev

Priced per call (estimate pending) · Seed (curated, not yet probed)

Search Google Flights for flight offers. Returns best flights, other flights, price insights, and airport info.

stable-travel-git-migrate-stabletravel-router-140-merit-systems.vercel.app

Priced per call (estimate pending) · Seed (curated, not yet probed)

Search job postings by filters

stablejobs.dev

Priced per call (estimate pending) · Seed (curated, not yet probed)

Search onchain DEX pools and token, by contract address, name, or token symbol.

pro-api.coingecko.com

Priced per call (estimate pending) · Seed (curated, not yet probed)

Search the James B. Pollack music catalog by mood, BPM, key, year, or similarity

music.jamesbpollack.com

Priced per call (estimate pending) · Seed (curated, not yet probed)

Search the web and return structured results

web-search.api.klymax402.com

Priced per call (estimate pending) · Seed (curated, not yet probed)

Search UK companies by name via Companies House — returns matches with number, status, type, incorporation date, address.

company.payapi.market

Priced per call (estimate pending) · Seed (curated, not yet probed)

SEC EDGAR -- fresh filings (10-K, 10-Q, 8-K, Form 4) for any US public company (AAPL, NVDA, TSLA), straight from data.sec.gov, agent-payable. Query ?ticker=AAPL. Free preview at /edgar/preview.

supership.crestsystems.ai

Priced per call (estimate pending) · Seed (curated, not yet probed)

Seedance 2.0 Fast — 5-second 720p text-to-video (faster, cheaper)

api.x402-video.com

Priced per call (estimate pending) · Seed (curated, not yet probed)

Sells an Ed25519-signed license receipt (agentic-receipt-v2.2) for Restarules for 1.00 USDC on Base mainnet.

x402-license-gateway.selfradiance.workers.dev

Priced per call (estimate pending) · Seed (curated, not yet probed)

Send a question about longevity, aging, or lifespan science. Returns a request ID to poll for the AI-generated answer from Aubrai, VitaDAO's decentralized co-scientist.

x402-api.aubr.ai

Priced per call (estimate pending) · Seed (curated, not yet probed)

Send a test request to a webhook URL and analyze the response

webhook-tester.api.klymax402.com

Priced per call (estimate pending) · Seed (curated, not yet probed)

Send an HTTP request to any URL from our servers and receive the full response — including the status code, all response headers, and the body content. Supports GET, POST, PUT, PATCH, DELETE, and HEAD

curl-http-request.underscoredone.com

Priced per call (estimate pending) · Seed (curated, not yet probed)

Seoul 3-day forecast — temperature, sky, rain chance every 3 hours

seoul-weather-402.fly.dev

Priced per call (estimate pending) · Seed (curated, not yet probed)

Service: Tripadvisor (https://tripadvisor.x402.paysponge.com/api/v1/location/search)

tripadvisor.x402.paysponge.com

Priced per call (estimate pending) · Seed (curated, not yet probed)

Set prototype tier ($0.10 USDC) — auto-detects subscribe/renew/upgrade

api.run402.com

Priced per call (estimate pending) · Seed (curated, not yet probed)

ShieldAPI - x402 security preflight before agents connect to IP infrastructure

shield.vainplex.dev

Priced per call (estimate pending) · Seed (curated, not yet probed)

Single buyer wallet's 8-label classification with confidence, all services used, and transaction patterns.

api.x402.printmoneylab.com

Priced per call (estimate pending) · Seed (curated, not yet probed)

Single-fact: number of pending transactions in the Monero mempool right now.

api.seneschal.space

Priced per call (estimate pending) · Seed (curated, not yet probed)

Sivut Public Data APIs

pay.sivut.co

~$0.003 USDC per call · Seed (curated, not yet probed)

Skim: clean reader — URL to agent-ready markdown + structured metadata.

skim402.com

Priced per call (estimate pending) · Seed (curated, not yet probed)

Smartmoney ticker intelligence for one public stock: hedge-fund 13-F ownership, aggregate smart-money trend, insider Form 4 activity, House PTR trades, coverage flags, and drilldown links.

x402.smartmoney.market

Priced per call (estimate pending) · Seed (curated, not yet probed)

Snapshot a list of US-listed tickers at once: for each symbol, the company name, market session, current price, day change and percent change, day OHLCV with VWAP, and previous close. Pass a comma-sep

x402stock.xyz

Priced per call (estimate pending) · Seed (curated, not yet probed)

Social Intel

socialintel

~$0.01 USDC per call · Seed (curated, not yet probed)

Solana token market signal — is it pumping or dumping? In under 10 seconds: current price, volume, buy/sell pressure, large-transaction (whale) detection, and a BULLISH/BEARISH/NEUTRAL call. Market co

api.solprobe.xyz

Priced per call (estimate pending) · Seed (curated, not yet probed)

SolSigs

solsigs.com

~$0.001 USDC per call · Seed (curated, not yet probed)

StableCrypto

merit-systems

~$0.01 USDC per call · Seed (curated, not yet probed)

StableDomains

merit-systems

~$0.1 USDC per call · Seed (curated, not yet probed)

StableEmail

merit-systems

~$0.001 USDC per call · Seed (curated, not yet probed)

StableMerch

merit-systems

~$0 USDC per call · Seed (curated, not yet probed)

StablePhone

merit-systems

~$0.05 USDC per call · Seed (curated, not yet probed)

StableSocial

merit-systems

~$0.06 USDC per call · Seed (curated, not yet probed)

Sub-100ms PDF text extraction, $0.002/doc, born-digital PDFs, no OCR, 10MB cap

x402-parser-edge-mainnet.epicblubber.workers.dev

Priced per call (estimate pending) · Seed (curated, not yet probed)

SuVerse Freight — BTC spot test GET (freight.test_btc_spot_get)

api.suverse.io

Priced per call (estimate pending) · Seed (curated, not yet probed)

Syntalic

syntalic

~$0.01 USDC per call · Seed (curated, not yet probed)

Tavily Search - advanced mode

x402.tavily.com

Priced per call (estimate pending) · Seed (curated, not yet probed)

The active deepnets watchlist - high-volume tokens that passed the safety screen, with current safety data.

api.deepnets.ai

Priced per call (estimate pending) · Seed (curated, not yet probed)

The most-recent N OHLCV candles.

api.hyperextend.xyz

Priced per call (estimate pending) · Seed (curated, not yet probed)

three.ws Symbol Availability — given a candidate ticker symbol, check for exact and fuzzy collisions across pump.fun mints indexed by three.ws. Returns exact matches (same symbol on the same network)

three.ws

Priced per call (estimate pending) · Seed (curated, not yet probed)

Tip or hire @0xmesuthere - send USDC payments

api.molty.cash

Priced per call (estimate pending) · Seed (curated, not yet probed)

Token Risks API. This API provides the deepest and the most high-precision results finding token risks and unique edge cases using a deterministic engine. Use this API after deploying a token or tradi

data-x402.hexens.io

~$0.9 USDC per call · Seed (curated, not yet probed)

Top smart followers (high-signal crypto accounts) of a Twitter/X account, with profiles and follower metrics.

xspy.pro

Priced per call (estimate pending) · Seed (curated, not yet probed)

TradeOS Crypto Intelligence

tradeos.tech

~$0.15 USDC per call · Seed (curated, not yet probed)

Transcribe audio/video from URLs using OpenAI Whisper. Payment via USDC on base.

cnvrt.ing

~$0.025 USDC per call · Seed (curated, not yet probed)

Transcribe video to text with word timestamps — TikTok, YouTube, Instagram, X, Twitch. Uses native platform captions when available (~2s) and falls back to Whisper-large-v3-turbo on extracted audio (~

api.hookfindr.com

Priced per call (estimate pending) · Seed (curated, not yet probed)

true402

true402.dev

~$0.0001 USDC per call · Seed (curated, not yet probed)

TrustBoost PII Sanitizer

github.com

~$149 USDC per call · Seed (curated, not yet probed)

UK HMO licence check by postcode and house number. Returns whether the property is a licensed House in Multiple Occupation.

hmo.payapi.market

Priced per call (estimate pending) · Seed (curated, not yet probed)

UK Stamp Duty Land Tax (SDLT) calculator with first-time buyer relief and surcharges.

property.payapi.market

Priced per call (estimate pending) · Seed (curated, not yet probed)

Underground Cultural District — catalog of 228 themed digital products (poetry, philosophy, fiction, reflection, plant meditations). One settle returns the full menu with every product's slug, descrip

underground.substratesymposium.com

Priced per call (estimate pending) · Seed (curated, not yet probed)

Unlock full crypto news article text (RSS ingest) for autonomous agents.

trabotpro.it

Priced per call (estimate pending) · Seed (curated, not yet probed)

Upload a file, get a link back

store.nosub.club

Priced per call (estimate pending) · Seed (curated, not yet probed)

Upload an image with payment and get a public URL. Accepts multipart form-data (field 'image') or JSON {"file": "<base64>"}. 5MB max, 1-year retention. PNG, JPEG, GIF, WebP.

img402.dev

Priced per call (estimate pending) · Seed (curated, not yet probed)

URL → clean, LLM-ready markdown (boilerplate/nav/ads stripped, headings + lists + links preserved) with a signed provenance receipt pinning the markdown to its source — the RAG-ingest primitive. Deter

mercury-x402-jed.fly.dev

Priced per call (estimate pending) · Seed (curated, not yet probed)

US Stock realtime price for AAPL

blockrun-web-vbsbhh7lea-uc.a.run.app

Priced per call (estimate pending) · Seed (curated, not yet probed)

USD price for any major token by symbol or chain+contract — $0.001 USDC

api.anchor-x402.com

Priced per call (estimate pending) · Seed (curated, not yet probed)

UUID generator API, UUID generator, UUIDv4 generator, UUIDv7 generator, random UUID generator, unique ID generator, batch UUID generator, GUID generator, RFC 4122 UUID generator, online UUID generator

api.x402node.dev

~$0.0022 USDC per call · Seed (curated, not yet probed)

Validate a JSON payload against a JSON Schema. Returns structured errors, error codes, JSONPath locations, and a plain-English summary.

projectx402-production.up.railway.app

Priced per call (estimate pending) · Seed (curated, not yet probed)

Vault details — NAV, underlying asset, chain, and whitelist status

api-dev-v2.ixs.finance

Priced per call (estimate pending) · Seed (curated, not yet probed)

Venice.ai — Private AI Inference

venice

~$5 USDC per call · Seed (curated, not yet probed)

VerdictAI is a professional contract verification service that protects agent budgets and decision quality. It evaluates whether an agent output satisfies a defined contract before any downstream acti

verdictai.cybercorium.ai

Priced per call (estimate pending) · Seed (curated, not yet probed)

Wallet risk profiling. Returns classification, risk score 0-100, and behavioral analysis.

audit.crestsystems.ai

Priced per call (estimate pending) · Seed (curated, not yet probed)

WDH.sh — QR Codes

wdh.sh

~$0.001 USDC per call · Seed (curated, not yet probed)

Weather forecast for any location via Open-Meteo (lat/lon)

httpay.xyz

~$0.002 USDC per call · Seed (curated, not yet probed)

Web search returning URLs, titles, and descriptions

win.oneshotagent.com

Priced per call (estimate pending) · Seed (curated, not yet probed)

Web search with clean, LLM-ready results via Tavily. Basic or advanced depth.

gateway.spraay.app

Priced per call (estimate pending) · Seed (curated, not yet probed)

Web3 Autonomous Scraper

mohit07062003

~$0.005 USDC per call · Seed (curated, not yet probed)

websearch

x402.swerver.net

~$0.01 USDC per call · Seed (curated, not yet probed)

Whitepages Person Search - Find people by name, phone, address

stableenrich.dev

Priced per call (estimate pending) · Seed (curated, not yet probed)

Wolfram Alpha

paysponge

~$0.01 USDC per call · Seed (curated, not yet probed)

WorkAgnt — The professional network for autonomous AI employees. AI agents with wallets, identity, reputation, and x402 payment capabilities on Base.

workagnt.ai

Priced per call (estimate pending) · Seed (curated, not yet probed)

X/Twitter API v2 via Surplus Intelligence: Tweet search (10 units)

www.surplusintelligence.ai

Priced per call (estimate pending) · Seed (curated, not yet probed)

Yeetful — Anthropic Claude Haiku 4.5 inference over MCP Streamable HTTP, hosted at anthropic.yeetful.com. Exposes ask_claude (single-prompt completion) and claude_chat (multi-turn) tools, capped at 25

anthropic.yeetful.com

Priced per call (estimate pending) · Seed (curated, not yet probed)

Your agent surveys real people, anywhere.

mcp.flashpoint.ai

~$0.05 USDC per call · Seed (curated, not yet probed)

Your agent surveys real people, anywhere.

flashpoint.ai

~$0.05 USDC per call · Seed (curated, not yet probed)