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 and your API, then review. No payment integration to build: agents pay you per request in USDC on Base via the x402 protocol.

Listing is free. Providers keep 100% of what the call earns.

163 live APIs and 1153 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. Review and submit - confirm your details and submit for verification.

Start listing - free · See pricing · Browse the marketplace

Last updated: 2026-09-15