falcon-shield.falcon-sol.workers.dev

Use this before an agent or wallet signs a Solana transaction. Decodes the unsigned or signed transaction and returns NO_MATCH (no known-bad pattern matched; not a safety guarantee), WARN, or BLOCK, with plain-language reasons and a signed receipt. Pass an x402 quote to also check a payment transaction against it (overpay, approve-instead-of-transfer, unchecked Transfer, wrong payee). Errors retur

Open endpoint ↗

Price per call: $0.009
Chain: Solana
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://falcon-shield.falcon-sol.workers.dev/guard/check", { method: "POST" });
console.log(await res.json());

https://falcon-shield.falcon-sol.workers.dev/guard/check