402utils

402utils is an x402-native service at https://402utils.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. 5 endpoints listed.

Base

Offers

Offer	Endpoint	Price
V1 Domain Check Domain availability and expiry intelligence via RDAP, the WHOIS successor. Queries the authoritative registry for any RDAP-enabled TLD: free domains return registered:false, taken ones return registrar, creation and expiry dates, nameservers and EPP status codes. TLDs without RDAP coverage return supported:false. Built for agents that buy, monitor or vet domains.	`/m/bz-402utils-com/v1/domain-check`	0.002 USDC
V1 Echo Echoes back the JSON body you send, with a server timestamp. Useful for verifying your x402 client integration end to end.	`/m/bz-402utils-com/v1/echo`	0.001 USDC
V1 Email Check Validate an email address before you accept a signup or send to it: RFC 5322 syntax, whether the domain resolves and its MX records, whether it is a disposable/throwaway domain (community blocklist), and whether it is a role account (info@, support@…). DNS is checked over DoH. No SMTP probing (intrusive and spammy), so a true 'domainExists' does not guarantee the mailbox exists.	`/m/bz-402utils-com/v1/email-check`	0.003 USDC
V1 Screenshot Capture a screenshot of any public web page with a headless Chrome browser. Set the viewport, grab the full scrollable page or just the fold, and choose PNG, JPEG or WebP with an optional quality. Returns the raw image bytes — ideal for link previews, thumbnails, visual monitoring and archiving. No browser to run, pay per capture.	`/m/bz-402utils-com/v1/screenshot`	0.008 USDC
V1 X402 Quote Enriched quote for an x402 endpoint: probes it unpaid (never pays, SSRF-checked), decodes {price, asset, network, payTo}, then compares the USD price against the live Bazaar market for its category → {marketContext:{category, medianForCategory, cheaperThanMarket}}. Not just how much, but whether it's fair. Market context is best-effort; the decoded quote returns even if the Bazaar read fails. Neut	`/m/bz-402utils-com/v1/x402-quote`	0.002 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-402utils-com/v1/domain-check')
// 402 challenge signed and settled automatically; response includes Payment-Receipt

Or inspect the challenge yourself:

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