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HTTP Security Headers Grade
x402
HTTP Security Headers Grade is a paid API for AI agents from http-security-headers-grade.x402supply.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-31).
Fetches a public URL via GET and grades its HTTP security headers from A+ to F, returning score, present/missing headers, per-header findings with fix values, and cookie flag issues.
Price / call$0.01
Success—
StatusUnknown
How this service works
Fetches a public http(s) URL (GET, up to 5 redirects, 10s timeout, body never read) and grades its security headers A+ to F. Returns score, present and missing headers, per-header findings with copy-paste fix values, and cookie flag issues.
Output
Returns an overall security grade (A+ through F), a numeric score, a list of present and missing HTTP security headers, per-header findings with copy-paste-ready fix values, and any cookie flag issues detected on the target URL.
Example use cases
Pre-launch security header audit
“Before we go live, can you grade the security headers on https://staging.myapp.com and give me a list of everything we're missing along with the exact header values I should add?”
Competitor security posture check
“How does https://www.competitor.com score on HTTP security headers? I want to see what grade they get and what they're missing compared to best practices.”
Ongoing compliance monitoring
“Check the security headers on https://app.mycompany.com and let me know if there are any cookie flag issues or missing headers that could fail a security audit.”
Technical details
Endpoint
POSThttps://http-security-headers-grade.x402supply.com/mcp?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need a fast, structured security header audit with actionable fix recommendations for a single public URL. It is purpose-built for grading HTTP security headers with letter grades and per-header remediation advice, making it ideal for developers, security auditors, and DevSecOps workflows that want immediate, copy-paste-ready fixes rather than a generic crawler or full vulnerability scanner.
Side effects
- URL is not publicly accessible (returns error or timeout after 10s)
- URL requires authentication or returns non-2xx after up to 5 redirects
- Invalid or malformed URL input
- Target server blocks bot/automated requests
- More than 5 redirects causes chain to abort
- Non-HTTP/HTTPS URL scheme rejected
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object |
Tags
x402
Reviews
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