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NerdyData MCP Server

Search websites by technology through your AI assistant.

Ask Claude, Cursor, or ChatGPT to find leads, look up domain tech stacks, and export lists - all in natural language.

Claude Code — NerdyData MCP

You:

Works with
Claude Desktop
Claude Code
Cursor
Windsurf
Gemini CLI
VS Code
Any MCP Client
How it works
Step 1
Discover

Browse technology categories or search by name

Step 2
Search

Find websites using that technology

Step 3
Profile

Look up company details and tech stacks

Step 4
Export

Download a CSV of matching leads

Setup instructions

Open your config file via Settings → Developer → Edit Config and add the following, replacing your-api-key-here with your API key:

{
  "mcpServers": {
    "nerdydata": {
      "command": "npx",
      "args": ["-y", "@nerdydata/mcp"],
      "env": {
        "NERDYDATA_API_KEY": "your-api-key-here"
      }
    }
  }
}

Restart Claude Desktop after saving the file.

Available tools
get_suggestionsFind technology report IDs by name (e.g. "Shopify", "Klaviyo").
get_suggestions_categoriesBrowse technology categories to discover what types of technologies can be searched.
search_codeSearch websites by technology or code snippet. Returns company info, emails, LinkedIn, spend estimates.
search_titlesSearch websites by their <title> tag content.
search_descriptionsSearch websites by their <meta description> content.
create_downloadQueue a full CSV export of matching websites.
get_downloadPoll a download job by ID. Returns a file URL when ready.
get_domainLook up a domain's metadata: company, employees, spend, emails, social profiles.
get_domain_technologiesSee what technologies a specific domain uses.
Example queries

Once connected, try asking your AI assistant:

Find leads
  • Find websites that use Shopify

  • How many websites use Klaviyo?

  • Find e-commerce sites using WooCommerce in the US

  • Which websites have Intercom installed?

Research competitors
  • What technologies does shopify.com use?

  • Does example.com use any marketing automation tools?

  • Compare the tech stacks of stripe.com and braintreepayments.com

Export lists
  • Export a CSV of all websites using HubSpot

  • Download a list of sites running WordPress with WooCommerce

Explore by category
  • What technology categories can I search?

  • Show me CRM tools I can search for

  • Find websites using any live chat technology

Troubleshooting

The server is not connecting

Make sure Node.js is installed and that npx can run packages. Try running `npx -y @nerdydata/mcp` in your terminal to confirm.

I get an authentication error

Check that your NERDYDATA_API_KEY is set correctly in the config and matches the key shown in your NerdyData account settings.

The AI assistant cannot find a technology

Use the get_suggestions tool first to look up the correct report ID for the technology you want to search.

My download never completes

Large exports can take a few minutes. Use get_download with the job ID returned by create_download and poll until the status is ready.

Frequently asked questions

What is the NerdyData MCP Server?

The NerdyData MCP (Model Context Protocol) Server is a plugin that connects AI assistants like Claude Desktop, Cursor, Windsurf, and ChatGPT to NerdyData. It lets you search websites by technology, look up domain profiles, and export lead lists directly inside your AI workflow.

Which AI clients support the NerdyData MCP Server?

The NerdyData MCP Server works with any MCP-compatible client that supports local (stdio) servers, including Claude Desktop, Claude Code, Cursor, Windsurf, Gemini CLI, and VS Code with GitHub Copilot.

What can I do with the NerdyData MCP Server?

You can search millions of websites by technology or code snippet, look up domain profiles including company name and spend estimates, and export lists of matching websites — all from within your AI assistant.

How do I install the NerdyData MCP Server?

Installation instructions are available on this page. You will need a NerdyData API key to authenticate.

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