Rigoblock

Rigoblock is an x402-native service at https://trader.rigoblock.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. 3 endpoints listed.

Base

Offers

Offer	Endpoint	Price
Api Quote DEX price quote across 7 chains (Ethereum, Base, Arbitrum, Optimism, Polygon, BNB, Unichain). Returns sell/buy amounts, price, routing, and gas estimate.	`/m/bz-trader-rigoblock-com/api/quote`	0.002 USDC
Quote Uniswap Uniswap Trading API quote with on-chain oracle price comparison. Drop-in proxy for Uniswap /quote — same request body, response includes priceFeedExists, deltaBps, and oracleAmount.	`/m/bz-trader-rigoblock-com/api/quote/uniswap`	0.0021 USDC
Api Tools Rigoblock DeFi tool discovery. Returns the full catalog with JSON schemas, categories, and access requirements for all direct-invocation tools.	`/m/bz-trader-rigoblock-com/api/tools`	0.0024 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-trader-rigoblock-com/api/quote')
// 402 challenge signed and settled automatically; response includes Payment-Receipt

Or inspect the challenge yourself:

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