# security-headers-check

> security-headers-check is a paid API for AI agents from intel.rallylive.ca, paid per call via x402, $0.01/call, status unknown (last checked 2026-09-13).

Checks a website's HTTP security headers (HSTS, CSP, X-Frame-Options, X-Content-Type-Options, Referrer-Policy) and returns server/content-type headers, HTTP status, and final URL.

## Facts

- Endpoint: GET https://intel.rallylive.ca/http-headers
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-13
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/security-headers-check-8b3da15e
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_kapjkvrSC9Nrd0GEjwZ0S

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability security-headers-check-8b3da15e
```

Example prompt: Can you check what HTTP security headers https://www.example.com is sending — specifically whether HSTS, Content-Security-Policy, X-Frame-Options, X-Content-Type-Options, and Referrer-Policy are set?

## When to prefer this

Choose this endpoint when you need a quick, structured snapshot of a website's HTTP security header configuration for auditing, compliance reporting, or hardening recommendations. It is purpose-built for security header analysis and returns all the major headers in one call, unlike a general URL status checker or a full vulnerability scanner.

## Known failure modes

- URL is unreachable or times out — endpoint may return an error or empty headers
- Invalid URL format provided — request may fail validation
- Website blocks automated requests — headers may be incomplete or absent
- Non-HTTP/HTTPS schemes not supported
- Target server uses non-standard header casing — some headers may not be detected

## How this service works

HTTP security headers check for a website: HSTS, Content-Security-Policy, X-Frame-Options, X-Content-Type-Options, Referrer-Policy, plus server and content-type headers, status and final URL. Web security audit, compliance checks and hardening reports. $0.01 per URL.

## Output

A JSON object containing the presence and values of key HTTP security headers (HSTS, Content-Security-Policy, X-Frame-Options, X-Content-Type-Options, Referrer-Policy), plus the server and content-type response headers, the HTTP status code, and the final resolved URL after any redirects.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "GET"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "properties": {}
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/security-headers-check-8b3da15e/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from intel.rallylive.ca](https://www.zero.xyz/host/intel.rallylive.ca/llms.txt)