PHION SYSTEMS

Evidence agents can verify.

Independently fetch a public source, screen it for prompt injection, normalize the evidence, hash the observation and receive an Ed25519-signed receipt.

POST /v1/preflight — free safety and reachability check
POST /v1/paid/fetch-evidence — 0.004 USDC on Base
POST /v1/verify — free offline-compatible receipt verification

● Evidence Engine operational

OpenAPI: /openapi.json · Agent card: /.well-known/agent.json · Discovery: /.well-known/x402.json