Technologychecker

Find leads your competitors won't. Query website technology stacks from Claude, Cursor, Zed, and other MCP-compatible clients. Six tools, plain English, no Python wrapper.

This is documentation and configuration for the official remote MCP endpoint at https://technologychecker.ai/api/mcp/technologychecker. There is no local server to install. Add the endpoint to your AI client of choice and the agent queries the live tech-stack database in plain English.

Why MCP

Model Context Protocol is the standard Anthropic released for letting AI agents talk to external services. Instead of copy-pasting data into ChatGPT or writing custom Python scripts, the agent connects directly to a service like ours and queries it natively. Setup is 60 seconds : paste a JSON config into your client, restart, done.

What you can do with it

TechnologyChecker.ai is a BuiltWith / Wappalyzer alternative built API-first for AI agents, GTM teams, and AI SDR workflows. From your agent, you can:

• Query the technology stack of 887k+ websites (CMS, hosting, JS framework, payment processor, analytics, AI tools)
• Filter sites by the technologies they use, country, traffic, TLD
• Browse the 7,500+ technology catalog
• Detect adoption and removal signals across 18 months of history
• Add matching sites to curated lists you can later export

Example prompts

These are the queries your agent will actually send :

• "Find me 100 US SaaS using Stripe + Vercel + Anthropic SDK with at least 10k monthly visits. Pin them to a list called 'AI-native targets'."
• "Show every site that adopted Anthropic SDK in the last 30 days. Export domains + traffic as CSV."
• "Get the full tech stack for vercel.com and summarize the GTM-relevant tools."
• "Which companies removed Drift in the last 90 days ? Pin the top 50 by traffic."
• "List the top 20 ecommerce sites using Shopify Plus in Germany with traffic over 100k."

Endpoint

https://technologychecker.ai/api/mcp/technologychecker

Authentication: Bearer token from your TechnologyChecker.ai API key. Create one at https://technologychecker.ai/api-keys after signing up.

Setup: Claude Desktop / Claude Code

Edit your claude_desktop_config.json (macOS: ~/Library/Application Support/Claude/claude_desktop_config.json, Windows: %APPDATA%\Claude\claude_desktop_config.json) and add:

{
  "mcpServers": {
    "technologychecker": {
      "command": "npx",
      "args": [
        "mcp-remote",
        "https://technologychecker.ai/api/mcp/technologychecker",
        "--header",
        "Authorization: Bearer YOUR_API_KEY"
      ]
    }
  }
}

Restart Claude Desktop. The six tools appear under the "technologychecker" server.

Setup: Cursor

In Cursor settings, add an HTTP-type MCP server pointing at the endpoint:

{
  "mcpServers": {
    "technologychecker": {
      "type": "http",
      "url": "https://technologychecker.ai/api/mcp/technologychecker",
      "headers": {
        "Authorization": "Bearer YOUR_API_KEY"
      }
    }
  }
}

Restart Cursor. Same six tools available to the agent.

Tools

Tool	Purpose
search_sites	Filter sites by tech slug(s), country, traffic floor, TLD. Returns paginated results.
get_site	Full tech stack for one domain, plus first-seen / last-seen dates per technology.
list_techs	Browse the 7,500+ technology catalog. Filter by category or partial name.
get_adoption_signals	Sites that ADDED a given tech in the last N days.
get_removal_signals	Sites that REMOVED a given tech in the last N days.
add_sites_to_list	Pin sites matching a filter into a named list, idempotent. Returns a shareable view URL.

Full tool schemas at https://technologychecker.ai/mcp

REST API

Same data is available via REST at https://technologychecker.ai/api/docs. Same Bearer token authentication. Same rate limits.

Pricing

• Free tier: 10 API + MCP lookups / month. No credit card required.
• Pro: 99 EUR / month. Unlimited queries, full pagination, CSV / JSON exports, webhook signals.
• Sign up at https://technologychecker.ai/register.

Links

• Website: https://technologychecker.ai
• Landing page: https://technologychecker.ai/lp/website-technology-checker
• REST API docs: https://technologychecker.ai/api/docs
• MCP docs: https://technologychecker.ai/mcp
• Pricing: https://technologychecker.ai/pricing

GitHub topics

mcp, mcp-server, website-technology-checker, tech-stack, builtwith-alternative, wappalyzer-alternative, sales-intelligence, gtm, ai-agents

License

MIT. See LICENSE.