# Website Tech Stack Detector

> Website Tech Stack Detector is a paid API for AI agents from elon.tail49499f.ts.net, paid per call via x402, $0.01/call, status unknown (last checked 2026-09-13).

Detects and returns the technology stack (frameworks, CDNs, platforms, tools) used by a given public website URL.

## Facts

- Endpoint: POST https://elon.tail49499f.ts.net/tech-stack
- 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/website-tech-stack-detector-0fece19d
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_a-gvN3U_P-o4nAd4GGojW

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 website-tech-stack-detector-0fece19d -d '<json body>'
```

Example prompt: What technologies and frameworks is https://shopify.com running — I want to know their CDN, CMS, frontend stack, and any analytics tools they use.

## When to prefer this

Choose this endpoint when you need a quick, low-cost ($0.01 USDC) technology fingerprint of any public website — especially for competitive intelligence, vendor audits, or ecommerce platform identification. Prefer this over manual inspection or broader web scraping when you only need the tech stack, not full page content.

## Known failure modes

- URL is private, behind authentication, or returns non-2xx status — no data returned
- URL is malformed or not a valid HTTP/HTTPS address — validation error
- Target site blocks crawlers or returns minimal HTML — partial or empty tech list
- Rate limits or payment failures may result in HTTP 402 or 429 responses
- Some technologies may not be detectable if obfuscated or server-side only

## How this service works

Curated x402 website intelligence API for autonomous AI agents. 24 high-value paid tools covering web content, company research, ecommerce product intelligence, SEO, security and domain trust.

## Output

Returns a JSON object containing a list of detected technologies (e.g. CDNs, frameworks, CMS platforms, analytics tools, ecommerce systems) identified as active on the given website URL, based on observable signals like HTTP headers, HTML markup, and script patterns.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "url": {
   "type": "string",
   "description": "Public HTTP or HTTPS URL to analyze"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "technologies": [
   "Cloudflare"
  ]
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/website-tech-stack-detector-0fece19d/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from elon.tail49499f.ts.net](https://www.zero.xyz/host/elon.tail49499f.ts.net/llms.txt)