Which integrations are available for this server?

Bridges a Roslyn C# language server to AI agents via the GitHub Copilot CLI, enabling code intelligence tools such as diagnostics, call hierarchy, and type hierarchy queries.

How do I use LSP-MCP?

1. Click on "Install Server". 2. Wait a few minutes for the server to deploy. Once ready, it will show a "Started" state. 3. In the chat, type @ followed by the MCP server name and your instructions, e.g., "@LSP-MCP find callers of the Main method in Program.cs" That's it! The server will respond to your query, and you can continue using it as needed. Here is a step-by-step guide with screenshots.

LSP-MCP

Minimal MCP server that bridges a Roslyn C# language server to AI agents (e.g. GitHub Copilot CLI).

Tools Exposed

Tool	Description
`get_diagnostics`	Compiler errors/warnings for a file or all open files
`call_hierarchy_in`	Find all callers of a symbol
`call_hierarchy_out`	Find all functions called by a symbol
`type_supers`	Base types and interfaces
`type_subs`	Derived types and implementations

Setup

pip install -e .

Configuration

Create .github/lsp.json in your workspace root:

{
  "lspServers": {
    "csharp": {
      "command": "path/to/Microsoft.CodeAnalysis.LanguageServer.exe",
      "args": ["--stdio", "--autoLoadProjects"]
    }
  }
}

Usage with Copilot CLI

Add to .copilot/mcp-config.json:

{
  "mcpServers": {
    "roslyn": {
      "type": "stdio",
      "command": "lsp-mcp",
      "args": ["--workspace", "/path/to/your/project"]
    }
  }
}