# hustler-extract Technology Stack Fingerprinting API

> hustler-extract Technology Stack Fingerprinting API is a paid API for AI agents from x402-extract-service.onrender.com, paid per call via x402, $0.02/call, status unknown (last checked 2026-09-19).

Fingerprints a public URL to identify the technologies, frameworks, CMS platforms, web servers, and JavaScript libraries it uses, returning categorized results with version and confidence data.

## Facts

- Endpoint: POST https://x402-extract-service.onrender.com/techstack
- Price: $0.02/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-19
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/hustler-extract-technology-stack-fingerprinting-api-dcde8ae5
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_4Rv_Qe6QnsNcfG9K2xi6e

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 hustler-extract-technology-stack-fingerprinting-api-dcde8ae5 -d '<json body>'
```

Example prompt: Can you fingerprint the tech stack for https://www.acmecorp.com and tell me what CMS, web server, and JavaScript libraries they're using, along with versions and confidence levels?

## When to prefer this

Use this endpoint when you need structured, evidence-backed technology identification for any public website, including CMS version, web server type, and JS library detection with confidence scores. It is ideal for competitive intelligence, pre-sales research, security audits, and automated pipeline enrichment. Prefer this over generic scraping when you specifically need categorized tech-stack data with version and evidence fields rather than raw page content.

## Known failure modes

- Invalid or non-public URL returns error response
- URL is unreachable or times out — no technologies returned
- Site behind authentication or bot-blocking may yield sparse or empty results
- Dynamic single-page apps may not expose server-side stack signals in HTML
- Payment failure via x402/USDC results in 402 response before processing begins

## How this service works

URL-to-clean-markdown extraction API, on-demand broken-link scan API, pre-deploy link audit API, DNS health audit API, llms.txt / AI-crawler audit API, spec-linted llms.txt audit API, email-deliverability (SPF/DKIM/DMARC) audit API, PDF-to-markdown conversion API, technology-stack fingerprinting API, security-headers audit API, and PDF metadata-intel API for coding agents. Paid per call in USDC via x402 on Base.

## Output

Returns a JSON object with ok status, the final resolved URL, a checkedAt timestamp, a counts summary (number of categories and technologies found), a categories map grouping technologies by type (e.g. CMS, Web Server, JavaScript Library) with version strings, and a technologies array where each entry includes name, version, category, evidence string, and confidence level (high/medium/low). Also includes the atomic USDC amount charged.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "url": {
   "type": "string",
   "format": "uri",
   "description": "Public http(s) URL to fingerprint."
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "ok": true,
  "url": "https://example.com/",
  "counts": {
   "categories": 6,
   "technologies": 7
  },
  "finalUrl": "https://example.com/",
  "checkedAt": "2026-09-14T00:00:00.000Z",
  "categories": {
   "CMS": [
    "WordPress 6.4.2"
   ],
   "Web Server": [
    "Nginx"
   ],
   "JavaScript Library": [
    "jQuery 3.7.1"
   ]
  },
  "technologies": [
   {
    "name": "WordPress",
    "version": "6.4.2",
    "category": "CMS",
    "evidence": "html: <meta name=\"generator\" content=\"WordPress 6.4.2\">",
    "confidence": "high"
   }
  ],
  "pricePaidAtomic": "20000"
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/hustler-extract-technology-stack-fingerprinting-api-dcde8ae5/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from x402-extract-service.onrender.com](https://www.zero.xyz/host/x402-extract-service.onrender.com/llms.txt)