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mcp/harbor
Cursor

mcp server for Cursor

io.github.retain-so/mcp-server

Model Context Protocol server for Retain: let AI agents query churn risk and act on retention.

client:Cursor transport:stdio runtime:npm

Install mcp server in Cursor

~/.cursor/mcp.json · windows: %USERPROFILE%\.cursor\mcp.json

Held in this page only — never stored, logged, or sent anywhere but back to your screen. 

{
  "mcpServers": {
    "mcp-server": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "@retain-so/mcp-server"
      ],
      "env": {
        "RETAIN_API_KEY": "<RETAIN_API_KEY>"
      }
    }
  }
}

Use .cursor/mcp.json in a project root instead to scope it to that project. Cursor merges both. Cursor docs

mcp server in other clients

mcp server MCP server