Hash Digest · Hash

POSTBase

$0.001

per call · USD Coin on Base

Compute cryptographic digests of a string. POST {"input":"...","algorithms":["sha256"]} and receive one hex digest per requested algorithm. Supports sha256, sha512 and keccak256. Deterministic, no storage, no upstream calls.

Endpoint

POST https://x402-echo-service.onrender.com/hash

Calls / 30d

Unique payers / 30d

Sep 6

Last called

exact

Payment scheme

Call this service

TypeScript · @x402/fetch

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://x402-echo-service.onrender.com/hash", {
  method: "POST",
  headers: { "Content-Type": "application/json" },
  body: JSON.stringify({
    "algorithms": [
      "sha256"
    ],
    "input": "hello world"
  }),
});
const data = await res.json();

cURL

curl -X POST \
  "https://x402-echo-service.onrender.com/hash" \
  -H "Content-Type: application/json" \
  -d '{"algorithms":["sha256"],"input":"hello world"}' \
  -H "X-PAYMENT: <signed x402 payment>"

Example response

{
  "digests": {
    "sha256": "b94d27b9934d3e08a52e52d7da7dabfac484efe37a5380ee9088f7ace2efcde9"
  },
  "input_bytes": 11
}

Payment details

Pay to0x9cc774a8ed49d89cba1a288f4a050b8f7fba77ee

AssetUSD Coin · 0x833589fcd6edb6e08f4c7c32d4f71b54bda02913

NetworksBase

Schemesexact

Is this your API?

Pin it to the top of Developer Tools and the homepage with a featured placement.

Get featured →

More from Hash Digest & similar services

Loyalspark · Recipient API Offers

api.loyalspark.online

Onchain loyalty platform on Base Network. Businesses launch branded rewards in minutes, customers earn real value with every purchase, and AI agents automate the rest via REST and MCP. Free plan mints up to 1,000 tokens per month; every call is scoped by row-level security to the wallet behind the API key. 16 skill guides at loyalspark.online/.well-known/skills/index.md.

GETBaseDeveloper Tools

$0.001 / call1.2k calls / 30d

Loyalspark · Workflow Reward Status

api.loyalspark.online

GETBaseDeveloper Tools

$0.001 / call560 calls / 30d

Loyalspark · Recipient API Vouchers

api.loyalspark.online

GETBaseDeveloper Tools

$0.001 / call536 calls / 30d