the402 endpoint detail

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api.agentstools.dev attest verify

https://api.agentstools.dev/attest/verify

answers 402

Verify an attestation produced by /notarize (either the EIP-712 or the EAS off-chain form) — pure compute, no network and no keys. Recovers the signer and reports whether it matches this service's attestor, whether the EAS UID recomputes, and (if you supply the original body as payload_base64) whether its sha256 matches the attested hash.

We sent a real POST request to this endpoint and it answered 402 with payment requirements we could parse.
Price
$0.001
Network
base
Pay to
0xF22e558a00D91Ee12A1F50C52186FecB8dDFf493
Spec dialect
v2 (declares x402Version 2)
Transport
PAYMENT-REQUIRED header
HTTP method
POST
Response latency
162 ms
Payment options
1 usable of 1
Last checked
2026-09-06T01:16:59.076Z (2h ago)
Category
finance-crypto

Re-check it yourself:
curl "https://api.the402.dev/validate?url=https%3A%2F%2Fapi.agentstools.dev%2Fattest%2Fverify"