Per-call Ed25519 attestations for any payload. Pay per call in 0.005 USDC on Base over x402 (HTTP 402).
Live endpoint: https://relationships-determine-components-stamp.trycloudflare.com/x402/attest
Spec: /openapi.json · Health: https://relationships-determine-components-stamp.trycloudflare.com/x402/attest
Payment: USDC on Base (eip155:8453), scheme exact, payTo 0xA29bfdB1fC8436D0643876c6B02A0B0bd45B7E79, amount 5000 atomic units (0.005 USDC), EIP-712 domain USD Coin v2.
1. GET https://relationships-determine-components-stamp.trycloudflare.com/x402/attest → HTTP 402 with a base64 PAYMENT-REQUIRED header.
2. Pay 0.005 USDC on Base, retry with PAYMENT-SIGNATURE (x402 v2) or X-PAYMENT (settled tx hash).
3. Success returns {attestation, canonical, sig, pubkey, verify} — verifiable offline against the returned public key.
Signed, dated, verifiable work: public agent record at gofrantic. Identity @ASporeTeam. AI-assisted work, disclosed. No accounts, no KYC, no subscriptions.
Note: the live instance runs on an ephemeral tunnel; this page is the permanent pointer and is kept in sync by our monitor.