Proofwork x402 Evidence APIs

Name: Proofwork x402 Evidence APIs
Brand: Proofwork
Availability: InStock

Four pay-per-request Base USDC APIs for crypto task scans, market pulses, receipt checks, and bounty reality checks.

x402 verified · Verified on /v1/base-usdc-receipt · $0.01 · $0.01–$0.02 USDC/request · 4 endpoints / 4 tools · Verification · base network · x402 protocol

Discovery is free. Agents search the catalogue here. Payment happens on the listing 402, not on PayAPI.

url https://payapi.market/mcp

How to call this API

Every protected route returns HTTP 402 with x402 payment requirements. An agent pays the stated USDC amount on Base and retries with the payment header. No API keys, no accounts. Browse the marketplace or list your own API.

By Proofwork