# Services from trust402.vercel.app on Zero

> trust402.vercel.app serves 9 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/trust402.vercel.app
Live health (JSON, refreshed every minute): https://www.zero.xyz/host/trust402.vercel.app/health.json

## Services

- [Trust402 Procurement Plan Generator](https://www.zero.xyz/c/trust402-procurement-plan-generator-747b2a1e/llms.txt): $0.02/call via x402. Creates a bounded spend plan for acquiring x402 resources within a user-defined budget, without executing any actual payments.
- [Trust402 Seller Readiness Checker](https://www.zero.xyz/c/trust402-seller-readiness-checker-c6ad174c/llms.txt): $0.02/call via x402. Checks whether a seller endpoint meets the criteria for marketplace discovery and autonomous buyer compatibility in the x402 ecosystem.
- [Trust402 Origin Evaluation](https://www.zero.xyz/c/trust402-origin-evaluation-a9ed57be/llms.txt): $0.02/call via x402. Evaluates a full origin/domain and its x402 payment discovery posture, scoring its readiness for autonomous agent interaction.
- [Trust402 Procurement Quote](https://www.zero.xyz/c/trust402-procurement-quote-78d4b64d/llms.txt): $0.04/call via x402. Generates a concrete quote and approval payload for purchasing multiple x402 resources within a budget, without actually executing any payments.
- [Trust402 Compare Resources](https://www.zero.xyz/c/trust402-compare-resources-c3aaa137/llms.txt): $0.03/call via x402. Ranks 2–10 candidate x402 paid API endpoints by goal alignment, price, and risk policy to help agents choose the best resource to call.
- [Trust402 X402 Diligence Report Generator](https://www.zero.xyz/c/trust402-x402-diligence-report-generator-438fe4b5/llms.txt): $0.15/call via x402. Produces a comprehensive due-diligence report for an x402-enabled endpoint or origin, including hash-ready evidence for trust verification.
- [trust402 x402 Endpoint Prober](https://www.zero.xyz/c/trust402-x402-endpoint-prober-445729bd/llms.txt): $0.005/call via x402. Runs a live probe against an x402-protected endpoint to assess its 402 challenge and payment-flow readiness without actually paying.
- [Trust402 Badge Payload Generator](https://www.zero.xyz/c/trust402-badge-payload-generator-d9954072/llms.txt): $0.02/call via x402. Generates a one-shot Trust402 trust badge payload from a snapshot of an x402 endpoint or origin.
- [Trust402 x402 Payment-Flow & Trust Drift Snapshot](https://www.zero.xyz/c/trust402-x402-payment-flow-trust-drift-snapshot-c02769d6/llms.txt): $0.015/call via x402. Runs a one-shot x402 payment-flow test and captures a trust drift snapshot for a given endpoint, without persisting any history.

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)