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Rubric Protocol Counterparty Check
x402
Rubric Protocol Counterparty Check is a paid API for AI agents from rubric-protocol.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-09-15).
Checks a Base blockchain address against OFAC SDN digital-currency lists and on-chain profile data, returning a cryptographically signed, Hedera-anchored compliance verdict before a transaction is executed.
Price / call$0.01
Success—
StatusUnknown
How this service works
Attested pre-transaction counterparty check: OFAC SDN digital-currency list match plus on-chain profile for any Base add
Output
A cryptographically signed compliance verdict anchored on the Hedera network, indicating whether the queried Base address matches any OFAC SDN digital-currency list entries, along with an on-chain profile of the address. The attestation is structured as citeable evidence suitable for audit or regulatory documentation.
Example use cases
Pre-payment sanctions screening for DeFi
“I'm about to send USDC to the Base address 0xAbC123...def456 — can you check it against the OFAC SDN digital-currency list and get me a signed attestation proving it passed before I approve the transaction?”
Compliance evidence for institutional crypto transfer
“Our compliance team needs a signed, Hedera-anchored sanctions verdict for the counterparty wallet 0x7dA5...9bF3 on Base before we can proceed with this settlement — can you get that from Rubric Protocol?”
Automated counterparty screening in agent-to-agent payment flow
“Before my agent pays the service wallet at 0xF2a1...8cD9 on Base, screen it for OFAC sanctions and return the attested compliance result so we have an auditable record.”
Technical details
Endpoint
POSThttps://rubric-protocol.com/v1/x402/check-counterpartyWhen to prefer
Choose this endpoint when you need a pre-transaction compliance check specifically for Base network addresses with cryptographic attestation — particularly when you need a signed, auditable verdict anchored on Hedera for regulatory evidence purposes. Prefer this over generic sanctions screening tools when the counterparty is a blockchain wallet rather than a named entity, or when downstream audit requirements demand a tamper-evident, on-chain proof of the compliance check.
Side effects
- Address not on Base network — may return an error or empty on-chain profile
- Malformed or invalid wallet address input returns a validation error
- OFAC SDN list data temporarily unavailable — service may return a degraded or cached result
- Hedera anchoring delay causes slow response under network congestion
- Insufficient USDC payment results in x402 payment required error
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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