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Rubric-protocol

Rubric-protocol is an x402-native service at https://rubric-protocol.com, indexed from the x402 Bazaar (Coinbase's public discovery directory). It charges callers itself in USDC on Base and is paid directly at its own wallet; MeshGateway passes your request and payment headers through untouched. 12 endpoints listed.

Base

Offers

OfferEndpointPrice
Agent Record Rubric Assert
Unforgeable operating history for any AI agent attesting through Rubric Protocol: record count, first-seen date, continuity days, and recent activity, computed from HCS-anchored attestations that cannot be backdated.
/m/bz-rubric-protocol-com/v1/x402/agent-record/rubric-assert0.005 USDC
X402 Attested Screening
Attested sanctions and export-control screening: OFAC SDN and Consolidated (primary and alternate spellings), UN Security Council, UK OFSI, EU and BIS Denied Persons. Fuzzy token matching (screen-matc
/m/bz-rubric-protocol-com/v1/x402/attested-screening0.01 USDC
X402 Attested Verification
Attested verification-event custody: seal the fact that an identity/liveness/KYC check ran, its method, provider, and result — without the subject's identity ever reaching Rubric. Caller submits an op
/m/bz-rubric-protocol-com/v1/x402/attested-verification0.005 USDC
X402 Decision Review
Attested policy evaluation: submit a proposed agent action, its context, and the policy it must satisfy. Returns a verdict, reasoning and the clauses applied, binding hashes of all three inputs into a
/m/bz-rubric-protocol-com/v1/x402/decision-review0.1 USDC
Hedera Facts Exchange Rate
Attested Hedera network facts: HBAR exchange rate, gas fees, supply, node roster, throughput, topic state. Each response carries the ML-DSA-65 attestation ID of the served snapshot — tamper-evident re
/m/bz-rubric-protocol-com/v1/x402/hedera-facts/exchange-rate0.001 USDC
Hedera Facts Gas Fees
Attested Hedera network facts: HBAR exchange rate, gas fees, supply, node roster, throughput, topic state. Each response carries the ML-DSA-65 attestation ID of the served snapshot — tamper-evident re
/m/bz-rubric-protocol-com/v1/x402/hedera-facts/gas-fees0.001 USDC
Hedera Facts Nodes
Attested Hedera network facts: HBAR exchange rate, gas fees, supply, node roster, throughput, topic state. Each response carries the ML-DSA-65 attestation ID of the served snapshot — tamper-evident re
/m/bz-rubric-protocol-com/v1/x402/hedera-facts/nodes0.001 USDC
Hedera Facts Supply
Attested Hedera network facts: HBAR exchange rate, gas fees, supply, node roster, throughput, topic state. Each response carries the ML-DSA-65 attestation ID of the served snapshot — tamper-evident re
/m/bz-rubric-protocol-com/v1/x402/hedera-facts/supply0.001 USDC
Hedera Facts Throughput
Attested Hedera network facts: HBAR exchange rate, gas fees, supply, node roster, throughput, topic state. Each response carries the ML-DSA-65 attestation ID of the served snapshot — tamper-evident re
/m/bz-rubric-protocol-com/v1/x402/hedera-facts/throughput0.001 USDC
Hedera Facts Topic State
Attested Hedera network facts: HBAR exchange rate, gas fees, supply, node roster, throughput, topic state. Each response carries the ML-DSA-65 attestation ID of the served snapshot — tamper-evident re
/m/bz-rubric-protocol-com/v1/x402/hedera-facts/topic-state0.001 USDC
X402 Regwatch Feed
Structured feed of regulatory changes affecting AI systems: jurisdiction, instrument, change type, effective dates, comment deadlines. Curated by the team behind The Attestation Brief; every item attested on ingest.
/m/bz-rubric-protocol-com/v1/x402/regwatch-feed0.05 USDC
Wallet Record :Address
Attested x402 payment history for any buyer wallet: settlement count, first-seen, last-seen, total spent, services used, distinct sellers observed - computed from an append-only settlement ledger and
/m/bz-rubric-protocol-com/v1/x402/wallet-record/:address0.005 USDC

Machine-readable: openapi.json with x-payment-info offers.

Try it live

Run the full MPP flow from your browser: catch the 402, sign the payment with your wallet, and watch it settle on-chain.

This merchant settles over the mppx rail; pay it from an agent with the snippet below.

Pay with an agent

Any MPP or x402-compatible client works. With mppx, payment is automatic:

import { Mppx, evm } from 'mppx/client'
import { privateKeyToAccount } from 'viem/accounts'

const mppx = Mppx.create({
  methods: [evm({
    account: privateKeyToAccount(process.env.KEY),
    currencies: [evm.assets.base.USDC],
  })],
})

const res = await mppx.fetch('https://api.meshgateway.co/m/bz-rubric-protocol-com/v1/x402/agent-record/rubric-assert')
// 402 challenge signed and settled automatically; response includes Payment-Receipt

Or inspect the challenge yourself:

curl -i https://api.meshgateway.co/m/bz-rubric-protocol-com/v1/x402/agent-record/rubric-assert
# HTTP/1.1 402 Payment Required
# WWW-Authenticate: Payment id="…", method="evm", intent="charge", …