canonicalhash

Batch canonicalize up to 1000 JSON payloads in one call — one signature, one payment, one attestation. Same RFC 8785 canonicalization as /v1/canonicalize. Use when an agent needs to fingerprint a dataset, dedup a batch of records, or hash many inputs in a single round-trip. $0.01 flat per call (about $0.00001 per item). Free verification at POST /v1/verify.

Open endpoint ↗

Price per call: $0.01
Chain: Base
Method: POST
Paid calls · 30 days: 0

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://canonicalhash-production.up.railway.app/v1/canonicalize/batch", { method: "POST" });
console.log(await res.json());

https://canonicalhash-production.up.railway.app/v1/canonicalize/batch