Canonical paid verify is POST /api/v1/agent-verify. sealId must be a UUID. An empty body or quote JSON without sealId is HTTP 402. A sealId that is not a UUID is HTTP 400 before payment. Human SKUs are Stripe Payment Links on /pricing.
Data: x402-list.com (CC BY 4.0)
Unclaimed has 1 live API on PayAPI Market with 1 endpoint in total, in Verification: AuthiChain x402.
Are Unclaimed's APIs verified?
Not yet. Unclaimed's listings are live and answer an x402 payment challenge, but PayAPI Market has not paid for a call to them, so none carries a settlement-verified badge.
How do I pay for Unclaimed's APIs?
Per request, in USDC, over the x402 protocol. An agent calls the endpoint, receives HTTP 402 with the price and wallet, pays and retries. There is no API key, account or subscription, and Unclaimed keeps 100% of each payment.