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Skill Audit API – HTTP Security Headers Analyzer
x402
Skill Audit API – HTTP Security Headers Analyzer is a paid API for AI agents from eltociear-skill-audit.hf.space, paid per call via x402, $0.005/call, status unknown (last checked 2026-09-15).
Analyzes a URL's HTTP security headers, scoring and grading the response for missing or present security headers like CSP and HSTS.
Price / call$0.005
Success—
StatusUnknown
How this service works
Fetch a URL and grade its HTTP security headers (HSTS, CSP, X-Frame-Options, etc.)
Output
Returns a JSON object with the audited URL, a letter grade (e.g. 'B'), a numeric score (0–100), the HTTP status code, a map of present security headers and their values, a list of missing security headers (e.g. 'content-security-policy'), and a list of present ones (e.g. 'strict-transport-security').
Example use cases
Vetting a third-party AI plugin before use
“Before I add this external plugin at https://someplugin.example.com to my agent setup, can you check its HTTP security headers and tell me its grade and any missing protections?”
Security compliance check for a production API
“Run a security header audit on https://api.mycompany.com and tell me the score, grade, and list every header that's missing so I know what to fix before our launch.”
Comparing header posture across two domains
“Audit the security headers on https://vendor-a.com for me — I want to see the grade and score so I can decide if it meets our security baseline.”
Technical details
Endpoint
POSThttps://eltociear-skill-audit.hf.space/headersWhen to prefer
Choose this endpoint when you need a quick, scored, graded audit of HTTP security headers for any public URL — especially when vetting AI agent skills, plugins, or third-party API endpoints for security posture before integration. It is purpose-built for AI agent ecosystems and provides a structured, machine-readable result ideal for automated decision-making pipelines.
Side effects
- Invalid or unreachable URL returns an error or non-200 status
- Timeout if the target URL is slow to respond
- Missing input URL results in a 400-level validation error
- Payment failure via x402 micropayment blocks the request
- Target URL behind authentication may return incomplete header data
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| url | string | URL to inspect |
Output
Schema · Response
{
"type": "json",
"example": {
"url": "https://example.com",
"grade": "B",
"score": 70,
"status": 200,
"headers": {
"strict-transport-security": "max-age=63072000"
},
"missing": [
"content-security-policy"
],
"present": [
"strict-transport-security"
]
}
}Tags
x402
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