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rubric-protocol.com x402 tiered-attest
https://rubric-protocol.com/v1/x402/tiered-attest
payable
One post-quantum-signed AI decision attestation, anchored to Hedera mainnet HCS.
We sent a real
POST request to this endpoint and it
answered 402 with payment requirements we could parse.
- Price
- $0.005
- Network
- base
- Pay to
- 0xaB6731A0BcDf511c2842C768a03448075aB654ca
- Spec dialect
- v2 (declares x402Version 2)
- Transport
- PAYMENT-REQUIRED header
- HTTP method
- POST
- Response latency
- 150 ms
- Payment options
- 1 usable of 1
- Last checked
- 2026-08-10T09:11:04.570Z (4d ago)
- Category
- ai-inference
Re-check it yourself:
curl "https://api.the402.dev/validate?url=https%3A%2F%2Frubric-protocol.com%2Fv1%2Fx402%2Ftiered-attest"