List your API

Turn your data or tool into a pay-per-call API for AI agents. It takes a few minutes - add your details, your API, choose a tier, and review. No payment integration to build: agents pay you per request in USDC on Base via the x402 protocol.

Free to list. Providers keep 100%. Featured is $49/month for placement only.

73 live APIs and 454 endpoints are already listed on PayAPI Market.

How listing works

1. Your details - your name, email, and USDC payout wallet on Base.
2. Your API - name, description, category, base URL, and price per request.
3. Choose a tier - Free (keep 100%, no per-request fee) or Featured ($49/month for placement only).
4. Review and submit - confirm your details and submit for verification.

Start listing - free · See pricing · Browse the marketplace

Last updated: 2026-08-10