QuanticData MCP server — give Claude, Cursor and any MCP client live web access

A single-file, zero-dependency MCP server that puts the QuanticData Data APIs in front of an AI agent: scrape a page, run a Google/Bing/DuckDuckGo/Yandex search, map or crawl a site, audit a URL for SEO, and run any of the 31 ready-made Collectors with a semantic input.

No SDK, no build step, no node_modules. Node.js 18+ and one file.

git clone https://github.com/quantumproxies/quanticdata-mcp-server
cd quanticdata-mcp-server
QUANTICDATA_API_KEY=qd_live_your_key_here node server.mjs

Get a key at app.quanticdata.io — there is a free monthly allowance and no card is required; see the pricing on quanticdata.io for the current figure.

Install it in your client

Claude Code

claude mcp add quanticdata \
  -e QUANTICDATA_API_KEY=qd_live_your_key_here \
  -- node /absolute/path/to/quanticdata-mcp-server/server.mjs

Claude Desktop — claude_desktop_config.json

{
  "mcpServers": {
    "quanticdata": {
      "command": "node",
      "args": ["/absolute/path/to/quanticdata-mcp-server/server.mjs"],
      "env": { "QUANTICDATA_API_KEY": "qd_live_your_key_here" }
    }
  }
}

Cursor — .cursor/mcp.json, same shape as above.

Any client that speaks stdio MCP works: the server implements initialize, tools/list, tools/call and ping, which is the complete surface for a tools-only server.

Related MCP server: The Web MCP

Tools

Everything is pay-per-success: a call that fails costs nothing.

Try it without a client

node smoke-test.mjs           # handshake + tools/list, no API key needed

Or drive it by hand — it is newline-delimited JSON-RPC on stdin:

printf '%s\n' \
  '{"jsonrpc":"2.0","id":1,"method":"initialize","params":{"protocolVersion":"2025-06-18","capabilities":{},"clientInfo":{"name":"cli","version":"1"}}}' \
  '{"jsonrpc":"2.0","id":2,"method":"tools/list"}' \
  | node server.mjs

Prompts that work well

• "Map quanticdata.io, then scrape the five most recent blog posts and summarise the themes."

• "Search for serp api pricing in the US and Germany and tell me how the top ten differ."

• "Run an SEO audit on our pricing page — is it indexable without JavaScript?"

• "Use list_collectors, then pull 40 dental clinics in Austin with local_business_leads."

The last one is the pattern worth internalising: let the agent read the catalogue first, then pick the collector. The schemas are published precisely so a model can choose correctly.

Configuration

Errors from the API come back as tool results with isError: true rather than protocol errors, so the model can read the message and correct itself instead of the conversation dying.

Related

• MCP server page · Documentation

• How MCP servers work · Is an MCP server like an API?

• How to create an MCP server · How to use MCP in Cursor

• Web Data API for AI · Browser AI agents

MIT licensed.