Tech stack detection: CMS, frameworks, analytics and hosting

$0.01 per call · failed calls are never charged · no account or API key needed

Detect the technologies behind a website from its home page HTML and response headers: CMS or site builder (WordPress, Shopify, Webflow…), JavaScript framework (Next.js, Nuxt, React…), analytics and ad pixels, support widgets, payments, captcha, CDN and hosting, web server and backend language, each with the evidence that matched. About 110 public fingerprints, server HTML only. Use for lead research, competitor analysis or sales prospecting.

Run it free (25 free calls) Buy credits by card (from $5) Example result (JSON)

Try it with your own inputs

Website or page URL

Uses one of your 25 free calls. Nothing is charged, and a call that fails is not counted.

Inputs

NameTypeDescription
url (required)stringWebsite or page URL

Request

Over HTTP, with a card key from /credits:

curl -H "Authorization: Bearer adt_…" "https://agent-data-tools.revmesh2074.workers.dev/tech/stack?url=https%3A%2F%2Fvercel.com%2F"

Or one of your 25 free calls, no key:

curl "https://agent-data-tools.revmesh2074.workers.dev/tech/stack?url=https%3A%2F%2Fvercel.com%2F&trial=1"

Without a key, the same URL answers 402 Payment Required with x402 and MPP terms, so an agent with a wallet pays per call in USDC (Base, Polygon, Arbitrum or Solana over x402; Base or Tempo over MPP) and retries.

Example result

{
  "url": "https://vercel.com/",
  "technologies": [
    {
      "name": "Next.js",
      "category": "JavaScript frameworks",
      "evidence": "page /_next/static/"
    },
    {
      "name": "Vercel",
      "category": "CDN and hosting",
      "evidence": "header x-vercel-id"
    }
  ],
  "byCategory": {
    "JavaScript frameworks": [
      "Next.js"
    ],
    "CDN and hosting": [
      "Vercel"
    ]
  },
  "generator": null,
  "server": "Vercel",
  "poweredBy": null,
  "count": 2
}

From an AI agent (MCP)

Add the MCP server to Claude, Cursor or any MCP client. This tool is tech_stack, and the first 25 successful calls are free:

https://agent-data-tools.revmesh2074.workers.dev/mcp

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