the402 endpoint detail

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rubric-protocol.com x402 decision-review

https://rubric-protocol.com/v1/x402/decision-review

answers 402

Attested policy evaluation: submit a proposed agent action, its context, and the policy it must satisfy. Returns a verdict with reasoning and the specific clauses applied — then binds hashes of all three inputs into an ML-DSA-65 signed, Hedera-anchored record. Evidence that the policy was evaluated against this action at this time, independently verifiable long after the agent is gone.

We sent a real POST request to this endpoint and it answered 402 with payment requirements we could parse.
Price
$0.10
Network
base
Pay to
0xaB6731A0BcDf511c2842C768a03448075aB654ca
Spec dialect
v2 (declares x402Version 2)
Transport
PAYMENT-REQUIRED header
HTTP method
POST
Response latency
110 ms
Payment options
1 usable of 1
Last checked
2026-08-15T14:31:00.859Z (5d ago)
Category
other

Re-check it yourself:
curl "https://api.the402.dev/validate?url=https%3A%2F%2Frubric-protocol.com%2Fv1%2Fx402%2Fdecision-review"