$0.001
per call · USD Coin on Base
Echoes back the JSON body you send, with a server timestamp. Useful for verifying your x402 client integration end to end.
Endpoint
POST https://402utils.com/v1/echo14
Calls / 30d
11
Unique payers / 30d
Sep 6
Last called
exact
Payment scheme
Call this service
import { wrapFetchWithPayment } from "@x402/fetch";
import { privateKeyToAccount } from "viem/accounts";
const account = privateKeyToAccount(process.env.PRIVATE_KEY);
const fetchWithPay = wrapFetchWithPayment(fetch, account);
const res = await fetchWithPay("https://402utils.com/v1/echo", {
method: "POST",
headers: { "Content-Type": "application/json" },
body: JSON.stringify({
"msg": "hello farm"
}),
});
const data = await res.json();curl -X POST \
"https://402utils.com/v1/echo" \
-H "Content-Type: application/json" \
-d '{"msg":"hello farm"}' \
-H "X-PAYMENT: <signed x402 payment>"Example response
{
"echo": {
"msg": "hello farm"
},
"ts": "2026-07-03T12:00:00.000Z"
}Payment details
0xc55a2d530b53cbad1001e4afd4720b7e71f9c291USD Coin · 0x833589fcd6edb6e08f4c7c32d4f71b54bda02913Is this your API?
Pin it to the top of Other and the homepage with a featured placement.
More from 402utils & similar services
402utils · Domain Check
402utils.com
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.
402utils · RSS TO Json
402utils.com
Fetch an RSS 2.0 or Atom feed and return clean JSON: feed title, link and description, plus items with title, link, ISO-8601 publishedAt, summary and author. Handles both formats and normalises the dates. The caller-supplied URL is SSRF-checked; the fetch is capped at 2 MB and 8 s.
402utils · Hash
402utils.com
Compute cryptographic hashes / checksums of a string or of raw bytes (base64). Returns lowercase hex for each requested algorithm: sha256 (default), sha512, sha1, md5. SHA via native Web Crypto; md5 and sha1 are offered for legacy interop only and flagged — not for security. POST so the input never lands in a URL/log. Verification/checksums only, not a hash cracker.