ToolVet
81trust / 100

Web Changes

by AgentWork Web Evidence in Developer tools

x402 APIPassing, checked 1 h ago

Website change monitoring / webpage change detection — text_sha256 or previous_text diff for documentation, pricing-page, changelog and policy monitoring. Batch up to 10 URLs in one call (items[]); optional CSS selector scoping and a one-line diff summary. $0.005 per URL Base ($0.01 Algorand); batch of 2-10 $0.003/URL ($0.006). Caller stores baseline; no server watch list. HTML/text only; no JS render. Failed checks not settled.

POST https://api.agentwork.run/v1/web/changes

Last 30 days

All checks passedSome failedAll failedNot checked
Uptime
100%
Response time
144 ms typical, 144 ms slowest 5%
Last check
1 h ago
Next check
any minute now

How to call it

# See the payment challenge (nothing is charged)
curl -i -X POST "https://api.agentwork.run/v1/web/changes" \
  -H "content-type: application/json" \
  -d '{"previous_text":"Example Domain\nOld text.","url":"https://example.com"}'
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 $0.005:
// GET https://toolvet.app/api/v1/check?url=https%3A%2F%2Fapi.agentwork.run%2Fv1%2Fweb%2Fchanges
const res = await pay("https://api.agentwork.run/v1/web/changes", {
  method: "POST",
  headers: { "content-type": "application/json" },
  body: JSON.stringify({"previous_text":"Example Domain\nOld text.","url":"https://example.com"}),
});
console.log(await res.json());

Example input

{
  "previous_text": "Example Domain\nOld text.",
  "url": "https://example.com"
}

Example output

{
  "comparison": {
    "added": [
      "New line"
    ],
    "changed": true,
    "removed": [
      "Old line"
    ]
  },
  "fetched_at": "2026-09-08T00:00:00Z",
  "ok": true,
  "text": "Example Domain\nNew line",
  "url": "https://example.com/"
}

Security scan

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

Recent checks

WhenResultHTTPTimePrice
1 h agoPassed402204 ms$0.005
6 h agoPassed402144 ms$0.005