agents.factstamp.dev

Audit what an agent believes about companies: send claims (subject, field, value) and get, claim by claim, supported, contradicted, stale or not_checkable with the register's own value, its own date and a citation. field is a name from the published vocabulary, never open text.

Open endpoint ↗

Price per call: $0.20
Chain: Base
Method: POST
Paid calls · 30 days: 1

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://agents.factstamp.dev/audit", { method: "POST" });
console.log(await res.json());

https://agents.factstamp.dev/audit