# PolicyCheck

Independent, evidence-backed seller policy facts for purchasing agents. Returns
Ed25519-signed assessments. Agents apply their own purchase criteria.

- [Skill and usage contract](https://policycheck.tools/skill.md)
- [Documentation](https://policycheck.tools/docs)
- [OpenAPI](https://policycheck.tools/openapi.json)
- [A2A card](https://policycheck.tools/.well-known/agent.json)
- [Public keys](https://policycheck.tools/.well-known/jwks.json)
- [MCP package](https://www.npmjs.com/package/policycheck-mcp)

POST /api/v1/signed-assessment or /api/check. Use seller_url for discovery,
url for an exact policy page, or policy_text for supplied content. Check sources,
evidence, analysis_status, limitations and expiry before using the facts.
POST /api/x402/analyze supports paid access with x402 v2. Read its live 402 price.
PolicyCheck does not guarantee that a merchant's statements are true or applicable
to an individual purchase. A signature authenticates the assessment's issuer.