Quartermaster

Quartermaster is an x402-native service at https://quartermaster.surewhynot.app, 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. 12 endpoints listed.

Base

Offers

Offer	Endpoint	Price
V1 Describe Image AI vision: describe any public image, including visible text (OCR-lite).	`/m/bz-quartermaster-surewhynot-app/v1/describe-image`	0.005 USDC
V1 Dns Resolve DNS records using DNS-over-HTTPS and return structured JSON for infrastructure, security, and agent workflows.	`/m/bz-quartermaster-surewhynot-app/v1/dns`	0.001 USDC
V1 Extract Extract clean readable text and metadata from a public webpage and return structured JSON for AI agents.	`/m/bz-quartermaster-surewhynot-app/v1/extract`	0.005 USDC
V1 Gas Current Base gas prices and a simple-transfer cost estimate for transaction planning.	`/m/bz-quartermaster-surewhynot-app/v1/gas`	0.001 USDC
V1 Moderate Content-safety classification (Llama Guard): safe/unsafe plus category codes.	`/m/bz-quartermaster-surewhynot-app/v1/moderate`	0.002 USDC
V1 Payment Proof Verify an x402 settlement on Base OR Solana: pass a 0x transaction hash or a base58 signature, confirm it succeeded, decode its USDC transfers (event logs on Base, net token-balance deltas on Solana), and optionally assert the receiving wallet and amount.	`/m/bz-quartermaster-surewhynot-app/v1/payment-proof`	0.003 USDC
V1 Price USD price for major tokens by symbol or any Base ERC-20 by contract address, with source failover.	`/m/bz-quartermaster-surewhynot-app/v1/price`	0.001 USDC
V1 Random Cryptographically-secure random integers in a chosen range (CSPRNG, rejection-sampled to avoid modulo bias) — real entropy an LLM cannot produce itself.	`/m/bz-quartermaster-surewhynot-app/v1/random`	0.001 USDC
V1 Translate AI translation of text into any target language; source language auto-detected.	`/m/bz-quartermaster-surewhynot-app/v1/translate`	0.005 USDC
V1 Unshorten Expand a shortened or redirecting URL: follows the redirect chain server-side and returns every hop plus the final destination, re-validating each hop against SSRF.	`/m/bz-quartermaster-surewhynot-app/v1/unshorten`	0.002 USDC
V1 X402 Audit Full x402 endpoint audit: verifies the 402 challenge, payment fields, Bazaar discovery metadata, and the origin's discovery surfaces (llms.txt, openapi.json, .well-known/x402, discovery/resources), returning a 0-100 score, pass/warn/fail checks with evidence, and recommended fixes.	`/m/bz-quartermaster-surewhynot-app/v1/x402-audit`	0.01 USDC
X402 Inspect Inspect and lint any x402 paid endpoint: decodes the 402 payment challenge, names the network and asset, and flags misconfigurations including missing Bazaar discovery metadata.	`/m/bz-quartermaster-surewhynot-app/v1/x402/inspect`	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-quartermaster-surewhynot-app/v1/describe-image')
// 402 challenge signed and settled automatically; response includes Payment-Receipt

Or inspect the challenge yourself:

curl -i https://api.meshgateway.co/m/bz-quartermaster-surewhynot-app/v1/describe-image
# HTTP/1.1 402 Payment Required
# WWW-Authenticate: Payment id="…", method="evm", intent="charge", …