canonicalhash

Extract structured JSON from messy text. Deterministic Tier 1 (regex, exact) handles labeled inputs in under 50ms; Needle 3 model fallback handles free-form text. Use when an agent needs to turn emails, logs, tickets, or notes into fields it can act on. $0.005 per call. No charge on extraction failure. Free verification at POST /v1/verify.

Open endpoint ↗

Price per call: $0.005
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/structure/paid", { method: "POST" });
console.log(await res.json());

https://canonicalhash-production.up.railway.app/v1/structure/paid