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mcp/harbor
Cursor

roslyn mcp for Cursor

io.github.darylmcd/roslyn-mcp

Local-first MCP server for semantic C# analysis & refactoring via Roslyn & MSBuildWorkspace.

client:Cursor transport:stdio runtime:nuget

Install roslyn mcp 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": {
    "roslyn-mcp": {
      "type": "stdio",
      "command": "dnx",
      "args": [
        "Darylmcd.RoslynMcp",
        "--yes"
      ],
      "env": {
        "ROSLYNMCP_SANCTIONED_ROOTS": "<ROSLYNMCP_SANCTIONED_ROOTS>"
      }
    }
  }
}

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

roslyn mcp in other clients

roslyn mcp MCP server