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OpenVerbs HTTP Headers & Security Audit
x402
OpenVerbs HTTP Headers & Security Audit is a paid API for AI agents from web.openverbs.com, paid per call via x402, $0.003/call, status unknown (last checked 2026-10-02).
Fetches a URL's HTTP response headers and audits the presence of key security headers (HSTS, CSP, X-Frame-Options, etc.) without downloading the response body.
Price / call$0.003
Success—
StatusUnknown
How this service works
Fetch a URL (following redirects) and return the final response's HTTP headers, the server banner and content-type, plus a security-header audit reporting HSTS, Content-Security-Policy, X-Content-Type-Options, X-Frame-Options, Referrer-Policy, Permissions-Policy and the cross-origin policies (with the missing ones listed). No body is downloaded or parsed.
Output
Returns the final URL's HTTP response headers after following redirects, the server banner and content-type value, and a structured security-header audit listing which of HSTS, Content-Security-Policy, X-Content-Type-Options, X-Frame-Options, Referrer-Policy, Permissions-Policy, and cross-origin policies are present or missing.
Example use cases
Security audit before site launch
“Before we go live, can you audit https://staging.mycompany.com for missing security headers? I specifically want to know if HSTS, CSP, and X-Frame-Options are all configured correctly.”
Vendor security compliance check
“We need to verify that our payment processor at https://checkout.vendorname.com has proper security headers set — can you check what they have and flag anything missing?”
Competitor server fingerprinting
“Can you fetch the headers from https://competitor.io and tell me what server software they're running and what their content-type is?”
Technical details
Endpoint
POSThttps://web.openverbs.com/v1/headers?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need to inspect HTTP headers and audit security posture of a URL without downloading or parsing the response body. It is ideal for security compliance checks, server fingerprinting, or verifying that a site has deployed the correct security headers. Prefer this over a full-page fetch when you only need header-level metadata.
Side effects
- Private/loopback/link-local IP addresses or hostnames are rejected with an error
- URL is unreachable or times out
- Invalid URL format returns validation error
- Non-HTTP/HTTPS schemes are rejected
- Target server returns no response headers
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| url | string | Public http(s) URL to fetch. Private/loopback/link-local addresses are rejected. |
Tags
x402
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