# HTTP Headers Analyzer

> HTTP Headers Analyzer is a paid API for AI agents from http-headers.api.klymax402.com, paid per call via x402, $0.001/call, status unknown (last checked 2026-09-14).

Fetches and analyzes the HTTP response headers returned by any given URL

## Facts

- Endpoint: GET https://http-headers.api.klymax402.com/api/analyze
- Price: $0.001/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/http-headers-api-klymax402-com-cd9c750f
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_PditfAf1MCGiFqdacDxAn

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 http-headers-api-klymax402-com-cd9c750f
```

Example prompt: Can you analyze the HTTP response headers for https://example.com and tell me what security headers, cache settings, and server info are being returned?

## When to prefer this

Use this endpoint when you need to programmatically inspect or audit the HTTP response headers of any public URL — especially useful for security audits (checking for HSTS, CSP, X-Frame-Options), debugging caching behavior, or identifying server software. Prefer this over manual browser inspection when automating header checks across multiple URLs or integrating header analysis into an agent workflow.

## Known failure modes

- Invalid or malformed URL returns validation error
- Unreachable or offline target URL returns connection error
- Redirect loops on the target URL may cause timeout
- Non-HTTP/HTTPS URLs may be rejected
- Rate limiting or firewall on target URL may block the request

## How this service works

Analyze HTTP response headers for a URL

## Output

Returns a structured breakdown of all HTTP response headers sent by the target URL, including header names and values such as Content-Type, Cache-Control, Strict-Transport-Security, X-Frame-Options, Content-Security-Policy, Server, and others present in the response.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "url": {
   "type": "string",
   "description": "Full URL to analyze (e.g. https://example.com)"
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/http-headers-api-klymax402-com-cd9c750f/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from http-headers.api.klymax402.com](https://www.zero.xyz/host/http-headers.api.klymax402.com/llms.txt)