MCP Servers

clangd-mcp

MCP server for C/C++ code analysis using clangd and clang tools, providing diagnostics, symbol search, include analysis, function listing, and code formatting.

Category

README

clangd-mcp

MCP server for C/C++ code analysis using clangd and clang tools. Provides diagnostics, symbol search, include analysis, function listing, and code formatting.

Features

check_file — run clangd diagnostics on a C/C++ file (errors, warnings)
find_symbol — search for symbol definitions across source files (regex)
get_includes — list and analyze #include directives
list_functions — extract function/method declarations from a file
clang_format — format code using clang-format (dry-run or in-place)

Falls back to compiler syntax checking (clang++, g++, MSVC) if clangd is not available.

Requirements

Python 3.10+
Optional: clangd, clang-format, ctags (for full functionality)
Works with fallback even without clang tools installed

Installation

pip install clangd-mcp

Or from source:

git clone https://github.com/ibuildrun/clangd-mcp.git
cd clangd-mcp
pip install -e .

MCP Configuration

Add to your .kiro/settings/mcp.json:

{
  "mcpServers": {
    "clangd": {
      "command": "clangd-mcp",
      "disabled": false
    }
  }
}

Or with uvx:

{
  "mcpServers": {
    "clangd": {
      "command": "uvx",
      "args": ["clangd-mcp"],
      "disabled": false
    }
  }
}

Usage Examples

> check_file "src/game/client/components/menus.cpp" "build"
> find_symbol "RenderBackground" "src"
> get_includes "src/game/client/ui.h"
> list_functions "src/game/client/components/menus.cpp"
> clang_format "src/game/client/ui.cpp" "file" true

License

MIT

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