Quadratik

io.github.quadratik-ai/quadratik · v1.0.0

Search and manage 220M+ B2B contacts. Filter by title, industry, location, and more.

Website Source code Set it up

Connect Remote server

Terminal

claude mcp add --transport http quadratik https://quadratikmcp-production.up.railway.app/ --header "X-API-Key: <X_API_KEY>"

~/.cursor/mcp.json

{
  "mcpServers": {
    "quadratik": {
      "url": "https://quadratikmcp-production.up.railway.app/",
      "headers": {
        "X-API-Key": "<X_API_KEY>"
      }
    }
  }
}

.vscode/mcp.json

{
  "servers": {
    "quadratik": {
      "type": "http",
      "url": "https://quadratikmcp-production.up.railway.app/",
      "headers": {
        "X-API-Key": "<X_API_KEY>"
      }
    }
  }
}

Claude Desktop

Settings > Connectors > Add custom connector
URL: https://quadratikmcp-production.up.railway.app/

Replace the values in angle brackets with your own. Keys stay on your machine; we never see them.

Tools

The tool list was not available in our last check.

Headers

Name	Description
`X-API-Key` Optional, secret	Your Quadratik API key. Get one at https://quadratik.com → Account Settings → API Keys. Optional for searching (results will have masked emails/phones), required for saving, exporting, and list management.

Details

Endpoint	`https://quadratikmcp-production.up.railway.app/` (Streamable HTTP)
First published	17 Apr 2026
Last updated	17 Apr 2026
Registry name	`io.github.quadratik-ai/quadratik`

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Typical response: 176 ms
Answered: 0% of 2 checks
Last check: 13 Nov 2026

30 days agoToday

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