# Tech Stack Detector / Website Fingerprinter

> Tech Stack Detector / Website Fingerprinter is a paid API for AI agents from x402-deployer.x402-deployer.workers.dev, paid per call via x402, $0.01/call, status unknown (last checked 2026-09-14).

Detects 50+ technologies used by a website (CMS, frameworks, CDN, analytics, payments, etc.) by analyzing HTTP headers, meta tags, scripts, and cookies

## Facts

- Endpoint: POST https://x402-deployer.x402-deployer.workers.dev/tech-stack-detect
- 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/x402-deployer-x402-deployer-workers-dev-9989eaf2
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_yjPtLUryn3pj3sFgil5Yn

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 x402-deployer-x402-deployer-workers-dev-9989eaf2 -d '<json body>'
```

Example prompt: Can you detect what tech stack stripe.com is running — I want to know their CMS, JavaScript framework, CDN, and any marketing or payment tools they're using?

## When to prefer this

Choose this endpoint when you need to identify the underlying technology stack of a public website without manual inspection. Ideal for competitive analysis, sales prospecting (e.g. targeting WordPress sites), security audits, or developer research. Covers 50+ technologies across CMS, JS frameworks, CDN, analytics, and payment tools — a strong Wappalyzer alternative that works programmatically via API.

## Known failure modes

- Target URL is unreachable or returns non-200 status — partial or empty results
- Website uses heavy obfuscation or CSP blocking detection patterns — low confidence or missed detections
- Rate limiting or bot protection on target site blocks the fingerprint request
- Invalid or malformed URL input — returns validation error
- Private/intranet URLs not accessible from the worker — connection timeout

## How this service works

Tech stack detector / website fingerprint / Wappalyzer alternative. Detects WordPress / Shopify / Webflow / Ghost / Next.js / Nuxt / Astro / Gatsby / React / Vue / Vercel / Netlify / Cloudflare / Stripe / Intercom / 50+ more. Header + meta + script + cookie patterns.

## Output

A structured list of detected technologies grouped by category (CMS, framework, CDN, analytics, etc.) with confidence scores, detected via header, meta, script, and cookie pattern matching across 50+ recognized platforms including WordPress, Shopify, Webflow, Ghost, Next.js, Nuxt, Astro, Gatsby, React, Vue, Vercel, Netlify, Cloudflare, Stripe, and Intercom.

## 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",
    "bodyType",
    "body"
   ],
   "properties": {
    "body": {
     "required": [
      "url"
     ],
     "properties": {
      "url": {
       "type": "string",
       "description": "Target URL (http or https). Single GET request follows redirects; final_url is reported."
      }
     }
    },
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "POST"
     ],
     "type": "string"
    },
    "bodyType": {
     "enum": [
      "json",
      "form-data",
      "text"
     ],
     "type": "string"
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object",
     "properties": {
      "url": {
       "type": "string"
      },
      "final_url": {
       "type": "string"
      },
      "categories": {
       "type": "object",
       "properties": {
        "cdn": {
         "type": "array",
         "items": {
          "type": "string"
         }
        },
        "hosting": {
         "type": "array",
         "items": {
          "type": "string"
         }
        },
        "framework": {
         "type": "array",
         "items": {
          "type": "string"
         }
        }
       }
      },
      "detections": {
       "type": "array",
       "items": {
        "type": "object",
        "properties": {
         "name": {
          "type": "string"
         },
         "category": {
          "type": "string"
         },
         "confidence": {
          "type": "string"
         }
        }
       }
      },
      "detection_count": {
       "type": "integer"
      }
     }
    }
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/x402-deployer-x402-deployer-workers-dev-9989eaf2/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from x402-deployer.x402-deployer.workers.dev](https://www.zero.xyz/host/x402-deployer.x402-deployer.workers.dev/llms.txt)