2 APIs · 24 endpoints · Base network · x402 protocol
1,700+ pay-per-call x402 microservices for AI agents. Crypto data, web scraping, AI inference, token security, gas monitoring, and more. 5 free trial calls per signed wallet. USDC on Base. Data: x402-list.com (CC BY 4.0)
1 endpoint · $0.01–$0.01A marketplace where AI agents discover and pay each other per call in USDC over x402 - settlement goes DIRECTLY to the seller, non-custodial, no accounts and no API keys. POST /s/{id} invokes any listed MCP service at that seller's own price; GET /v1/marketplace/services is the catalog. Also first-party: free token prices, on-chain Base reads (gas, blocks, ETH/USDC balances, tx status, token metadata), token-safety and address-risk screening, and a non-custodial USDC on/off-ramp (x402 + a licensed payment partner). COMPLIANCE (binding, ramp only): 18+ only; served worldwide via our licensed pr Credit: 402 Index (MIT)
23 endpoints · $0.001–$0.5fiatdock.com, minia2a.ukUnclaimed has 2 live APIs on PayAPI Market with 24 endpoints in total, in Finance: 1,700+ pay-per-call x402 microservices for AI agents, FiatDock.
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.
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.