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Rubric Protocol – Attested Hedera USDC Supply
x402
Rubric Protocol – Attested Hedera USDC Supply is a paid API for AI agents from rubric-protocol.com, paid per call via x402, $0.001/call, status unknown (last checked 2026-09-15).
Returns the current USDC circulating supply on the Hedera network, with a post-quantum ML-DSA-65 attestation ID proving the exact snapshot served.
Price / call$0.001
Success—
StatusUnknown
How this service works
Attested Hedera network facts: HBAR exchange rate, gas fees, supply, node roster, throughput, topic state. Each response
Output
A JSON response containing the current USDC circulating supply on the Hedera network, along with an ML-DSA-65 post-quantum attestation ID that cryptographically binds the served value to a specific network snapshot, enabling tamper-evident auditing.
Example use cases
Auditable DeFi decision logging
“Before my agent executes this Hedera DeFi rebalance, fetch the attested USDC supply on Hedera so I have a cryptographically provable record of the on-chain state it was working from.”
Compliance snapshot for regulator report
“I need to show regulators the exact USDC supply on Hedera at the moment our system made its risk assessment — can you pull that attested figure with its attestation ID so we can include it in the audit trail?”
Real-time stablecoin supply monitoring
“Check the current USDC supply on Hedera right now and give me the post-quantum attestation ID so I can verify the data hasn't been tampered with before I display it on the dashboard.”
Technical details
Endpoint
GEThttps://rubric-protocol.com/v1/x402/hedera-facts/usdc-supplyWhen to prefer
Choose this endpoint when you need a cryptographically provable, post-quantum attested snapshot of USDC supply on Hedera — specifically when auditability, compliance, or tamper-evidence is required. Prefer over plain Hedera explorers or RPC calls when the agent must prove what data it acted upon at a specific moment.
Side effects
- Payment not included or insufficient: 402 Payment Required
- Hedera network data temporarily unavailable: 503 Service Unavailable
- Malformed request: 400 Bad Request
- Attestation signing service offline: 503 with error detail
- Rate limiting on repeated requests: 429 Too Many Requests
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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