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Setup

1

Open MCP Settings

Go to Windsurf Settings → Cascade → MCP Servers
2

Add Configuration

Click on the gear icon and edit the mcp.json file:
{
  "mcpServers": {
    "danube": {
      "url": "https://danube.fastmcp.app/mcp",
      "headers": {
        "danube-api-key": "YOUR_API_KEY"
      }
    }
  }
}
3

Restart Windsurf

Restart the IDE to load the new configuration.

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Troubleshooting

  • Ensure you have the latest version of Windsurf
  • Check if MCP support is enabled in your Windsurf version
  • Verify your API key is correct
  • Check firewall/VPN settings