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.
POST https://tenjin.blog/api/answerListed in 2 directories: bazaar, x402-new. First seen 5 Sept 2026.
The endpoint answers an unpaid request with an HTTP 402 and a payment challenge. @x402/fetch signs it, pays in USDC, and retries — you get the result back in one call.
import { wrapFetchWithPayment } from "@x402/fetch";
import { privateKeyToAccount } from "viem/accounts";
const account = privateKeyToAccount(process.env.PRIVATE_KEY);
const pay = wrapFetchWithPayment(fetch, account);
const res = await pay("https://tenjin.blog/api/answer", {
method: "POST",
headers: { "content-type": "application/json" },
body: JSON.stringify({ /* see the 402 challenge for the shape */ }),
});
console.log(await res.json());tenjin.blog
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
BaseEverything elsetenjin.blog
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
BaseNews & contentUptime and compliance: x402-list.com (CC BY 4.0). Safety scores: x402.direct. Call and payer counts: x402.new. AMNT indexes this endpoint and does not host, operate or vouch for it.