Tenjin

Tenjin is an x402-native service at https://tenjin.blog, 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 Answer Pay once for a cited answer synthesized from independent publishers on Tenjin. POST a question; a question the catalog cannot answer returns a free MISS and is never charged.	`/m/bz-tenjin-blog/api/answer`	0.05 USDC
Api Phone Lookup Phone intelligence for an E.164 number, in two products the caller picks between: "name" returns the US CNAM caller name plus the carrier data, and the cheaper "carrier" returns the carrier, line type, mobile network and rate-center location alone. You are charged only on a result: no name found, or an invalid number, costs nothing. Agent guide: https://tenjin.blog/llms.txt	`/m/bz-tenjin-blog/api/phone-lookup`	1 USDC
:Handle :Slug Pay-per-read pieces by independent publishers. Find one by question first: POST https://tenjin.blog/api/search is free and returns payable candidates or an honest MISS. The 402 carries a free preview; pay it for the full text JSON. Agent guide: https://tenjin.blog/llms.txt. Full catalog: https://tenjin.blog/.well-known/x402	`/m/bz-tenjin-blog/api/read/:handle/:slug`	0.05 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-tenjin-blog/api/answer')
// 402 challenge signed and settled automatically; response includes Payment-Receipt

Or inspect the challenge yourself:

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