HTTP Security Headers Audit

Name: HTTP Security Headers Audit
Price: 0.007 USD

x402

HTTP Security Headers Audit is a paid API for AI agents from x402-gateway.blackwoodstate8.workers.dev, paid per call via x402, $0.007/call, status unknown (last checked 2026-10-22).

Audits the HTTP security headers of a public URL, returning a letter grade, score, per-header pass/warn/fail results, and actionable fix advice.

Price / call$0.007

Seller volume →—

Success—

StatusUnknown

How this service works

Use when you need an http security headers audit of a website or URL, with a grade and what to fix. Do not use for vulnerability scans, TLS cipher analysis or pages behind a login. Returns JSON auditing the HTTP security headers of a public URL (HSTS, CSP, X-Frame-Options, X-Content-Type-Options, Referrer-Policy, Permissions-Policy, cookies) with a grade and fixes for 0.007 USDC per call. Typical response time 2500 ms (p95). Category: Infrastructure.

Output

Returns a JSON object containing the original URL, final URL after redirects, HTTP status, redirect chain, an overall letter grade (e.g. A, B, C, F) and numeric score, an array of per-header checks each with the header name, raw value, a pass/warn/fail/info result, and fix advice, plus a cookies array showing each cookie's Secure, HttpOnly, and SameSite attributes, and a checkedAt timestamp.

Example use cases

Pre-launch security header check

“Before we go live with our new site at https://staging.myapp.io, can you check all its HTTP security headers and tell me what grade it gets and what we need to fix?”

CSP and cookie flag audit for compliance

“Our security team needs a report on https://shop.mybrand.com — specifically whether the Content-Security-Policy and cookie flags like Secure and HttpOnly are properly set. Can you run an HTTP header audit?”

Investigate clickjacking vulnerability

“I'm worried our site https://portal.mycompany.com might be vulnerable to clickjacking. Can you check whether X-Frame-Options and the relevant security headers are configured correctly and give me a grade?”

Technical details

Endpoint

POSThttps://x402-gateway.blackwoodstate8.workers.dev/v1/http-headers?utm_source=zero.xyz

When to prefer

Choose this endpoint when you need a fast, structured HTTP security header audit of any public URL — including grading, per-header pass/fail analysis, cookie security flags, and concrete fix advice. Prefer it over manual header inspection tools when you need machine-readable JSON output for automation or reporting. Do NOT use it for TLS/cipher analysis, full vulnerability scanning, or auditing pages that require authentication.

Side effects

URL is behind a login or authentication wall — audit cannot fetch headers, returns error
URL is not publicly reachable (private network, localhost) — connection failure
URL uses a non-HTTP/HTTPS scheme — rejected by input validation
Malformed or too-short URL fails schema validation (minLength:8)
Target server times out or is slow — may exceed typical 2500ms response window
Payment not processed — x402 payment required error before audit runs

Input

Schema · Request body

Field	Type	Description
inputrequired	object
output	object

Output

Schema · Response

{
  "type": "json",
  "example": {
    "url": "https://example.com",
    "grade": "F",
    "score": 10,
    "checks": [
      {
        "value": null,
        "advice": "Add Strict-Transport-Security: max-age=31536000; includeSubDomains",
        "header": "strict-transport-security",
        "result": "fail"
      },
      {
        "value": null,
        "advice": "Add a Content-Security-Policy; start with default-src 'self' and tighten from there.",
        "header": "content-security-policy",
        "result": "fail"
      },
      {
        "value": null,
        "advice": "Add X-Frame-Options: DENY (or CSP frame-ancestors 'none') against clickjacking.",
        "header": "x-frame-options",
        "result": "fail"
      },
      {
        "value": null,
        "advice": "Add X-Content-Type-Options: nosniff.",
        "header": "x-content-type-options",
        "result": "fail"
      },
      {
        "value": null,
        "advice": "Add Referrer-Policy: strict-origin-when-cross-origin.",
        "header": "referrer-policy",
        "result": "warn"
      },
      {
        "value": null,
        "advice": "Add a Permissions-Policy that turns off features you do not use (camera, microphone, geolocation).",
        "header": "permissions-policy",
        "result": "warn"
      }
    ],
    "status": 200,
    "cookies": [],
    "finalUrl": "https://example.com/",
    "checkedAt": "2026-10-17T16:49:19.296Z",
    "redirects": 0
  }
}

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