LSP-MCP Bridge

stryk91/lsp-mcp-rs

A universal bridge that lets Claude talk to any Language Server Protocol implementation through a single binary. Configure it once with paths to your LSP servers (rust-analyzer, pyright, lua-language-server, etc.), and it routes requests based on file extensions. Exposes six core LSP operations as MCP tools: hover for documentation and types, definition jumping, reference finding, symbol listing, and diagnostics. Servers spawn lazily on first use and stay resident. Reach for this when you want Claude to understand your codebase through the same language intelligence your editor uses, without building separate MCP integrations for each language. Config driven with TOML, works with any LSP that speaks stdio.

GitHub stars

1

tools

6

transport

STDIO

last updated

Jan 3, 2026

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cargo build --release

[servers.lua]
command = "C:/path/to/lua-language-server.exe"
args = ["--stdio"]
extensions = [".lua"]

[servers.rust]
command = "rust-analyzer"
args = []
extensions = [".rs"]

[servers.python]
command = "pyright-langserver"
args = ["--stdio"]
extensions = [".py"]

{
  "mcpServers": {
    "lsp": {
      "command": "X:\\path\\to\\lsp-mcp-rs.exe",
      "args": []
    }
  }
}

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