# AgentRXI Tech Stack Detection

> AgentRXI Tech Stack Detection is a paid API for AI agents from agentrxi.com, paid per call via x402, $0.005/call, status unknown (last checked 2026-10-15).

Detects the technologies a website is built with — CMS, frameworks, e-commerce platforms, analytics, ads, chat, payments, CDN, hosting, and server — including evidence for each detected technology.

## Facts

- Endpoint: GET https://agentrxi.com/v1/techstack?utm_source=zero.xyz
- Price: $0.005/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/agentrxi-tech-stack-detection-a138e244
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_ht-LLAxfC54Ko4Dblk0sa

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 agentrxi-tech-stack-detection-a138e244
```

Example prompt: What technologies is shopify.com built with — CMS, frameworks, CDN, analytics, payment processors, everything you can detect?

## When to prefer this

Use this endpoint when you need detailed, evidence-backed technology fingerprinting of any public website, including CMS, e-commerce, analytics, payment, CDN, and server signals all in one call. Prefer it over generic web scrapers when the goal is specifically technology identification rather than content extraction. At $0.005 per call it is cost-effective for bulk competitive research or sales prospecting workflows.

## Known failure modes

- URL is unreachable or returns non-200 status — detection fails with an error
- Private or password-protected sites may yield minimal or no detectable technologies
- Heavily obfuscated or custom-built sites may result in few or no matches
- Invalid or malformed URL input causes a schema validation error
- Sites using aggressive anti-bot measures may block the detection probe

## How this service works

Tech stack detection: what a website is built with (CMS, frameworks, e-commerce, analytics, ads, chat, payments, CDN, hosting, server) with the evidence for each.

## Output

A structured breakdown of the detected technology stack for the given URL or domain, organized by category (CMS, frameworks, e-commerce, analytics, ads, chat, payments, CDN, hosting, server), with evidence (e.g. HTTP headers, HTML signatures, script URLs) provided for each detected technology.

## 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": "URL or domain"
      }
     }
    }
   },
   "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/agentrxi-tech-stack-detection-a138e244/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from agentrxi.com](https://www.zero.xyz/host/agentrxi.com/llms.txt)