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What is MCP?

The Model Context Protocol (MCP) lets LLMs call Linkup API directly — all LinkedIn and B2B intelligence tools become native capabilities of your AI assistant.

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Endpoint

https://mcp.linkupapi.com/mcp
Authenticate with your API key via the x-api-key header. Get your key at app.linkupapi.com.

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Claude (Desktop / Code)

Run this in your terminal: 
claude mcp add --transport http linkupapi https://mcp.linkupapi.com/mcp --header "x-api-key: YOUR_API_KEY"
Restart Claude — all Linkup API tools are now available.

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ChatGPT (Custom Connectors)

In ChatGPT → Settings → Connectors → Add custom connector:
  • Name: Linkup API
  • Server URL: https://mcp.linkupapi.com/mcp
  • Authentication: Custom header
  • Header name: x-api-key
  • Header value: YOUR_API_KEY
Save and enable the connector in your chat.

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Gemini (gemini-cli / Gemini Code Assist)

Add to ~/.gemini/settings.json: 
{
  "mcpServers": {
    "linkupapi": {
      "httpUrl": "https://mcp.linkupapi.com/mcp",
      "headers": {
        "x-api-key": "YOUR_API_KEY"
      }
    }
  }
}
Restart Gemini.

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Cursor / Windsurf / Other MCP Clients

Add this to your MCP config (e.g. ~/.cursor/mcp.json): 
{
  "mcpServers": {
    "linkupapi": {
      "url": "https://mcp.linkupapi.com/mcp",
      "transport": "http",
      "headers": {
        "x-api-key": "YOUR_API_KEY"
      }
    }
  }
}

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Verify it works

Ask your LLM: “Validate the email [email protected] using Linkup API”. It should call the validate_email tool and return a result.

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Available tool categories

  • LinkedIn Engagement — login, search, connect, message, post, react, comment
  • LinkedIn Data — profile enrichment, company info, search
  • Mail Intelligence — find, validate, reverse lookup
  • B2B Intelligence — funded companies, hiring signals
  • Recruiting — candidates, CVs, job posts

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Support

Issues? Reach us at [email protected] or via the dashboard support page.