Verify Url

Last 30 days

Uptime

100%

Response time

222 ms typical, 222 ms slowest 5%

Last check

3 h ago

Next check

any minute now

How to call it

# See the payment challenge (nothing is charged)
curl -i -X POST "https://goodsong.dev/verify/url" \
  -H "content-type: application/json" \
  -d '{"url":"https://example.com/blog/some-article"}'

import { wrapFetchWithPayment } from "@x402/fetch";
import { x402Client } from "@x402/core/client";
import { ExactEvmScheme } from "@x402/evm/exact/client";
import { privateKeyToAccount } from "viem/accounts";

const client = new x402Client().register(
  "eip155:8453",
  new ExactEvmScheme(privateKeyToAccount(process.env.AGENT_KEY)),
);
const pay = wrapFetchWithPayment(fetch, client);

// Not sure it's safe to pay? Preflight it first for $0.03:
// GET https://toolvet.app/api/v1/check?url=https%3A%2F%2Fgoodsong.dev%2Fverify%2Furl
const res = await pay("https://goodsong.dev/verify/url", {
  method: "POST",
  headers: { "content-type": "application/json" },
  body: JSON.stringify({"url":"https://example.com/blog/some-article"}),
});
console.log(await res.json());

Example input

{
  "url": "https://example.com/blog/some-article"
}

Example output

{
  "canonical": {
    "archived_snapshot": {
      "status": "200",
      "timestamp": "20240101000000",
      "url": "https://web.archive.org/web/20240101000000/https://example.com/blog/some-article"
    },
    "content_hash": "sha256:...",
    "final_url": "https://example.com/blog/some-article",
    "redirect_chain": [],
    "title": "Some Article"
  },
  "checks": {
    "archived": true,
    "content_match": null,
    "final_status": 200,
    "redirected": false,
    "resolves": true
  },
  "cost": {
    "amount": "0.005",
    "currency": "USDC"
  },
  "evidence": [
    {
      "retrieved_at": "2026-08-30T12:00:00Z",
      "source": "direct_fetch",
      "url": "https://example.com/blog/some-article"
    },
    {
      "retrieved_at": "2026-08-30T12:00:00Z",
      "source": "wayback_machine",
      "url": "https://archive.org/wayback/available"
    }
  ],
  "latency_ms": 480,
  "verdict": "confirmed"
}

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• No findings. We scan names, descriptions and tool definitions for hidden instructions and other prompt-injection patterns.

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