HTTP/1.1 402 PAYMENT REQUIRED agent402.base.eth · BASE · SOLANA · POLYGON · ARBITRUM · STELLAR · ROBINHOOD · USDC · USDG
Agent402 / tools / skill-page-audit

Skill: Page audit

$0.12 per call · USDC via x402 · POST /api/skill/page-audit

Bundled execution of the Page audit workflow — Full page SEO + security audit: content extraction, metadata, HTTP headers, robots policy, and sitemap health in one call. One x402 payment runs 5 underlying tools (extract, meta, http-headers, robots-check, sitemap); partial-success per step.

Input

FieldTypeDescription
url *stringPage URL to audit (e.g. https://stripe.com)

Example output

{
  "pack": "page-audit",
  "args": {
    "url": "https://stripe.com"
  },
  "steps": [
    {
      "slug": "extract",
      "ok": true,
      "result": {}
    },
    {
      "slug": "meta",
      "ok": true,
      "result": {}
    },
    {
      "slug": "http-headers",
      "ok": true,
      "result": {}
    },
    {
      "slug": "robots-check",
      "ok": true,
      "result": {}
    },
    {
      "slug": "sitemap",
      "ok": true,
      "result": {}
    }
  ],
  "summary": "5/5 steps succeeded"
}

Try it — see the 402 challenge (free)

curl -i -X POST https://agent402.tools/api/skill/page-audit \
  -H "Content-Type: application/json" \
  -d '{"url":"https://stripe.com"}'

The response is HTTP 402 Payment Required with exact payment requirements. Any x402 v2 client pays automatically and retries:

Paid call (JavaScript agent)

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

const client = new x402Client();
registerExactEvmScheme(client, { signer: privateKeyToAccount(KEY) });
const payFetch = wrapFetchWithPayment(fetch, client);

const res = await payFetch("https://agent402.tools/api/skill/page-audit", {
  method: "POST",
  headers: { "Content-Type": "application/json" },
  body: JSON.stringify({
    "url": "https://stripe.com"
  }),
});
Wallet-only. This tool reaches the network/browser/storage, so it is paid in USDC via x402 (no proof-of-work tier).

Related tools

Skill: Security audit

$0.12 · POST /api/skill/security-audit

Bundled execution of the Security audit workflow — Enumerate a domain's external attack surface in one workflow: certs, …

Skill: Email deliverability

$0.10 · POST /api/skill/email-deliverability

Bundled execution of the Email deliverability workflow — Diagnose why a domain's email lands in spam: SPF posture, DMARC…

Skill: Crypto market brief

$0.050 · POST /api/skill/market-brief

Bundled execution of the Crypto market brief workflow — Quick crypto market snapshot: price for a specific coin, trendin…