x402 Integrity Check

Name: x402 Integrity Check
Brand: Conclave
Availability: InStock

Call before trusting or paying a third-party x402 seller: checks an x402 listing's price, network and bazaar presence against our sampled ecosystem snapshot, and probes endpoint reachability - flagging dead or mismatched endpoints and prices so an agent can skip them before paying (JSON).

1 route settlement-verified · $0.005–$0.009 USDC/request · 0 endpoints · Data · base network · x402 protocol

Verified routes

GET /v1/x402-integrity · $0.009 · 2026-10-14 · receipt

Other routes are unverified.

Networks: Base (settlement-verified)

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 Conclave