SHA-256 hash

Use when an agent must prove two payloads are the same byte for byte, or sign an API request: SHA-256 of any string or hex payload, returned as hex and as base64, which are the two forms signatures and content addresses are written in. Do not use for anything Ethereum hashes: the chain uses Keccak-256 (/v1/util/keccak256), which gives a different digest. No API key, no account.

Open endpoint ↗

Price per call: $0.005
Chain: Base
Method: GET
Paid calls · 30 days: 6

Call it from code

This API is run by its own provider and paid directly through x402. We list it so you can find it; we don't route or hold the payment.

import { x402Client, wrapFetchWithPayment } from "@x402/fetch";
import { registerExactEvmScheme } from "@x402/evm/exact/client";

const client = new x402Client();
registerExactEvmScheme(client, { signer: agentAccount });

const pay = wrapFetchWithPayment(fetch, client);
const res = await pay("https://flat-rate-llm.kikoribera03.workers.dev/v1/util/sha256", { method: "GET" });
console.log(await res.json());

https://flat-rate-llm.kikoribera03.workers.dev/v1/util/sha256