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Rubric Protocol – Attested Hedera Latest Transaction Facts
x402
Rubric Protocol – Attested Hedera Latest Transaction Facts 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 latest attested Hedera network facts (HBAR exchange rate, gas fees, supply, node roster, throughput, topic state) for the most recent transaction, each response carrying an ML-DSA-65 post-quantum attestation ID.
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 latest Hedera network facts snapshot including HBAR exchange rate, gas fees, total supply, node roster, network throughput, and topic state, along with an ML-DSA-65 post-quantum attestation ID that cryptographically binds the response to the served snapshot for tamper-evident verification.
Example use cases
Auditable HBAR exchange rate for agent trades
“Fetch the current HBAR exchange rate from Rubric Protocol with its post-quantum attestation ID — I need tamper-evident proof of the rate my trading agent used when it executed.”
Compliance snapshot of Hedera network state
“Get me an attested Hedera network snapshot right now — gas fees, supply, and throughput — with the attestation ID attached so our compliance team can verify what the network looked like at decision time.”
Verifiable node roster for infrastructure audit
“Retrieve the latest Hedera node roster with its ML-DSA-65 attestation so I can prove to our auditors exactly which nodes were active when my agent submitted the transaction.”
Technical details
Endpoint
GEThttps://rubric-protocol.com/v1/x402/hedera-facts/latest-txWhen to prefer
Choose this endpoint when your AI agent needs cryptographically attested, tamper-evident Hedera network facts — especially for compliance, audit trails, or provable decision logs where you must demonstrate exactly what on-chain state the agent observed. Prefer it over raw Hedera Mirror Node APIs when you need a post-quantum (ML-DSA-65) signed attestation ID bundled with the data.
Side effects
- Network unavailability returns a 503 or timeout
- Invalid or expired payment token returns a 402 payment required error
- Hedera mainnet data lag may cause stale snapshot if the network is congested
- Malformed GET request returns a 400 bad request
- Rate limiting on repeated rapid calls may return 429 too many requests
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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