# Services from payerproof-production.up.railway.app on Zero

> payerproof-production.up.railway.app serves 2 paid API services for AI agents, indexed by Zero. Each is callable per call with payment handled by Zero.

Canonical page: https://www.zero.xyz/host/payerproof-production.up.railway.app
Live health (JSON, refreshed every minute): https://www.zero.xyz/host/payerproof-production.up.railway.app/health.json

## Services

- [PayerProof Trust Score API](https://www.zero.xyz/c/payerproof-trust-score-api-8c256b20/llms.txt): $0.02/call via x402. Computes a 0-100 trust score for an x402 service listed in the Bazaar, combining liveness, on-chain payer diversity, revenue verification, and listing age into a graded report with flags.
- [PayerProof Revenue Stats](https://www.zero.xyz/c/payerproof-revenue-stats-a37b796d/llms.txt): $0.01/call via x402. Returns verified on-chain USDC revenue analytics for a given x402 seller address on Base, including total received, transfer count, unique payers, top-payer concentration, and largest transfers over a configurable time window up to 30 days.

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

- [Zero catalog index](https://www.zero.xyz/llms.txt)