Service card

Perplexity API

perplexity.ai · Priced per token (estimate pending)

APIapi_key

Capabilities

Probe + outcome evidence. Blank fields are honest gaps, not zeros.

external_network

Derived from service-card facts. These prompts guide review; they do not create benchmark evidence.

Use when endpoint surfaces, marketplace snapshots, or seller-controlled catalogs may change route decisions.

Endpoint URL is route-decision material.API route surface needs periodic verification.

Source and route-surface drift field prompts
source_name	Tie vendor claims to the feed or directory that made them.
source_service_count	Capture catalog size at review time.
source_endpoint_count	Detect callable-surface changes without a service-count change.
stackbroker_first_seen	Separate Stackbroker observation from vendor labels.
last_verified_route_surface	Mark the last date the callable surface was checked.
source_churn_summary	Summarize added, removed, or materially changed endpoints.
seller_controlled_ranking_risk	Flag when discovery, ranking, payment, and proof claims share an owner.

What changed since the prior snapshot: endpoints, pricing, auth, payment rail, receipt path, or policy terms?
Can a buyer reconstruct which endpoint set was available when the route decision was made?
Would a stale marketplace snapshot change the route decision or policy outcome?

Use when payment can flow through x402, cards, Stripe, hosted wallets, credits, stablecoins, Lightning, or several networks.

Price and settlement proof need a reviewable receipt path.

Multi-rail payment metadata field prompts
rail	Name the payment mechanism.
asset	Record the settlement asset, such as USDC, fiat, credits, or token units.
network	Capture Base, XRPL, Celo, Lightning, Stripe, card network, or other execution path.
facilitator	Identify the gateway, PSP, wallet provider, or merchant of record.
payment_requirement_url	Keep a machine-readable payment challenge or manifest reachable for audit.
quote_expiration	Prevent stale dynamic prices from being reused.
proof_type	Distinguish authorization, transaction hash, signed receipt, webhook, invoice, or ledger proof.
settlement_finality	Mark whether payment is authorized, pending, settled, reversible, or disputed.
refund_or_dispute_path	Capture what the buyer can do when payment succeeds but the service outcome fails.

Is the rail directly buyer-to-seller, or does a gateway intermediate custody or settlement?
Does the quote bind amount, recipient, asset, network, service, and task context?
Does the receipt prove both payment and the service operation, or only settlement?