# WAF Detection

> WAF Detection is a paid API for AI agents from intel.rallylive.ca, paid per call via x402, $0.01/call, status unknown (last checked 2026-09-14).

Detects which Web Application Firewall (WAF) is protecting a target site by analyzing response headers, cookies, and block-page behavior via a probe HTTP GET request.

## Facts

- Endpoint: GET https://intel.rallylive.ca/site/waf
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/waf-detection-e266f188
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_vmmETl2m0wKFI5JPprOcU

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 waf-detection-e266f188
```

Example prompt: Can you detect which WAF is protecting https://example.com — I want to know if it's Cloudflare, AWS WAF, Akamai, or something else?

## When to prefer this

Use this endpoint when you need lightweight, low-cost ($0.01) WAF fingerprinting without maintaining your own WAF signature database or running probe infrastructure. Prefer it for single-site reconnaissance, security audits, or enriching threat intelligence pipelines. It covers all major commercial and open-source WAFs including Cloudflare, AWS WAF, Akamai Kona, Imperva, Sucuri, F5 BIG-IP, Barracuda, Fortinet, and ModSecurity.

## Known failure modes

- Target site is unreachable or times out — no detection result returned
- WAF uses advanced cloaking or zero-footprint configuration — may return false negative
- CDN without WAF properties returns ambiguous signals
- Rate-limiting by target site blocks probe request
- Unknown or obscure WAF vendor not in detection signatures — returned as unrecognized

## How this service works

Web application firewall detection: signs of Cloudflare WAF, AWS WAF, Akamai Kona, Imperva, Sucuri, F5 BIG-IP, Barracuda, Fortinet, ModSecurity and others from response headers, cookies and block-page behaviour on a probe request. Know what stands in front of an app. $0.01 per site.

## Output

Returns the detected WAF vendor (e.g. Cloudflare, AWS WAF, Akamai Kona, Imperva, Sucuri, F5 BIG-IP, Barracuda, Fortinet, ModSecurity) along with the detection evidence such as specific response headers, cookie names, and block-page patterns that triggered the identification. Returns no-WAF-detected if none is found.

## 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/waf-detection-e266f188/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)