# orbit Web Tools: HTTP Security Headers Audit

> orbit Web Tools: HTTP Security Headers Audit is a paid API for AI agents from orbit-web.orbit-builder.workers.dev, paid per call via x402, $0.001/call, status unknown (last checked 2026-10-29).

Audits a public website's HTTP security headers live, returning a score (0-100), letter grade (A+ to F), and a prioritized list of fixes

## Facts

- Endpoint: GET https://orbit-web.orbit-builder.workers.dev/v1/headers?utm_source=zero.xyz
- Price: $0.001/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-29
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/orbit-web-tools-http-security-headers-audit-6f33a956
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_ZfFQY5EL2nYu317wRcDGj

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 orbit-web-tools-http-security-headers-audit-6f33a956
```

Example prompt: Can you run a full HTTP security headers audit on https://mycompany.com and tell me the score, grade, and what headers I need to add?

## When to prefer this

Choose this endpoint when you need a quick, live, scored audit of HTTP security headers for any public website — especially useful before deploying a site, reviewing a third-party vendor's security posture, or validating that security headers meet compliance baselines. At $0.001 per call it is extremely cost-effective for single-URL spot checks.

## Known failure modes

- Invalid or unreachable URL returns an error — site must be publicly accessible
- Non-HTTPS URLs may produce limited results (no HSTS data)
- Rate-limited or bot-blocking sites may return incomplete header data
- Missing required 'url' query parameter causes the API to run on the built-in example input instead

## How this service works

Web utilities for agents, computed live at call time: URL health/redirect/x402 check, web page to Markdown (robots.txt honoured), DNS lookup with SPF/DMARC, email address validation (MX, disposable, role, typo), HTTP security-header audit and AI-agent readiness audit (llms.txt, AI crawler rules, x402, MCP, OpenAPI). $0.001 per call. By orbit-builder.

## Output

Returns a JSON object containing the audited URL, a numeric score from 0–100, a letter grade from A+ to F, lists of present and missing security headers (HSTS, CSP, X-Frame-Options, X-Content-Type-Options, Referrer-Policy, Permissions-Policy, COOP, CORP, cookie flags), and an array of human-readable fix recommendations.

## 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",
     "required": [
      "url"
     ],
     "properties": {
      "url": {
       "type": "string",
       "description": "public http(s) URL"
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "url": "https://github.com",
  "fixes": [
   "Add Permissions-Policy"
  ],
  "grade": "A",
  "score": 90,
  "missing": [
   "permissions-policy"
  ],
  "present": [
   "strict-transport-security",
   "content-security-policy"
  ]
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/orbit-web-tools-http-security-headers-audit-6f33a956/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from orbit-web.orbit-builder.workers.dev](https://www.zero.xyz/host/orbit-web.orbit-builder.workers.dev/llms.txt)