Datastand

Datastand is an x402-native service at https://datastand.dev, 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. 2 endpoints listed.

Base

Offers

Offer	Endpoint	Price
Data Npm Vuln Digest The latest ~100 npm security advisories, normalized for machines: severity, CVSS, affected packages, vulnerable ranges, patched versions. Derived from the GitHub Advisory Database (CC-BY 4.0, attributed). Add ?since=<ISO-8601> to get only the advisories published or revised since your last fetch; if nothing has changed you are not charged, so polling for new vulnerabilities costs nothing until the	`/m/bz-datastand-dev/api/data/npm-vuln-digest`	0.02 USDC
Llm Route Cheapest-model router: send your token workload and get every current LLM ranked by estimated USD cost, with per-MTok prices, cached-input rates, and context windows. Backed by the weekly-verified llm-pricing table — every figure carries its official source URL and verification date.	`/m/bz-datastand-dev/api/llm/route`	0.005 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-datastand-dev/api/data/npm-vuln-digest')
// 402 challenge signed and settled automatically; response includes Payment-Receipt

Or inspect the challenge yourself:

curl -i https://api.meshgateway.co/m/bz-datastand-dev/api/data/npm-vuln-digest
# HTTP/1.1 402 Payment Required
# WWW-Authenticate: Payment id="…", method="evm", intent="charge", …