Tool detail
Rubric Protocol
Returns the current HBAR exchange rate as an attested Hedera network fact, with an ML-DSA-65 attestation ID for tamper-evident verification.
Categories: Onchain data
Use when
- get the current HBAR exchange rate with a verifiable attestation
- get tamper-evident Hedera reference data for an audit trail
Not for
- not gas fees, supply, node roster, throughput, or topic state - likely sibling endpoints, same path prefix
- not a full Hedera block explorer or transaction lookup
Inputs
inputs undocumented
Inputs undocumented: the listing has no input schema
Endpoint
- Method
GET- URL
https://rubric-protocol.com/v1/x402/hedera-facts/exchange-rate
Payment
- Protocol
- x402
- Listed price
- 0.001 USDC per call on Base (eip155:8453)
- Payment method
- exact
- Network
- eip155:8453
- Asset
- 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913
Listed terms are catalog metadata. The caller supplies inputs and calls the tool outside Onelayer. If payment is required, the caller uses a compatible wallet to pay.
Source
- Directory
- Coinbase x402 Bazaar
- Record
- GET https://rubric-protocol.com/v1/x402/hedera-facts/exchange-rate
- Retrieved
- 2026-09-30T20:37:07.382Z
- Catalog file SHA-256
6837ccddf886f0007cf3727ea9d27faaa5047b51b4f425345c554ce1c271a524- Catalog built
- 2026-09-30T22:31:58.034Z