M2msentinel

M2msentinel is an x402-native service at https://api.m2msentinel.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; Monex Protocol passes your request and payment headers through untouched. 6 endpoints listed.

Base

Offers

Offer	Endpoint	Price
Audit :Address Before you sign: can this Base contract be paused, frozen, or have tokens minted by its owner, self-destruct, or delegate execution somewhere you have not seen? Returns the opcodes and selectors actually present in the deployed bytecode, resolves proxies and EIP-7702 delegated accounts to what really runs, and states the trust level behind the answer. Evidence for your policy, not a safety verdict	`/m/bz-api-m2msentinel-com/v1/audit/:address`	0.02 USDC
Dex Metrics How deep is liquidity for tracked Base tokens and how much is actually trading, with the source named, for sizing an order or declining one.	`/m/bz-api-m2msentinel-com/v1/dex/metrics`	0.01 USDC
Gas Fees What a Base transaction costs right now, with the RPC provider and trust level behind the number, so a caller can tell a credentialed reading from a degraded one before pricing a transaction.	`/m/bz-api-m2msentinel-com/v1/gas/fees`	0.005 USDC
Score :Address How completely could this Base contract be checked, and on what grade of evidence. Separates checked-and-clean from could-not-be-checked, which automated callers otherwise conflate. Explicitly not a safety score.	`/m/bz-api-m2msentinel-com/v1/security/score/:address`	0.02 USDC
Price :Symbol What a tracked Base token is worth right now, taken as the median of the deepest pools rather than one pair, returning the pools considered and the spread across them.	`/m/bz-api-m2msentinel-com/v1/token/price/:symbol`	0.005 USDC
Whales Signals Who is moving size on Base right now: large ERC-20 transfers reported as observed facts with amounts and source, not as trade signals or predictions.	`/m/bz-api-m2msentinel-com/v1/whales/signals`	0.02 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-api-m2msentinel-com/v1/audit/:address')
// 402 challenge signed and settled automatically; response includes Payment-Receipt

Or inspect the challenge yourself:

curl -i https://api.meshgateway.co/m/bz-api-m2msentinel-com/v1/audit/:address
# HTTP/1.1 402 Payment Required
# WWW-Authenticate: Payment id="…", method="evm", intent="charge", …