How to add LLDB-MCP to Claude Desktop

Integrate the LLDB debugger with Claude via MCP for AI-assisted debugging sessions. Paste the config into ~/Library/Application Support/Claude/claude_desktop_config.json and restart Claude Desktop.

Last updated June 14, 2026 · 105★ · stdio · no auth

Claude Desktop config for LLDB-MCP

git clone https://github.com/stass/lldb-mcp.git && cd lldb-mcp && pip install mcp

{
  "mcpServers": {
    "lldb-mcp": {
      "command": "python3",
      "args": [
        "/path/to/lldb-mcp/lldb_mcp.py"
      ]
    }
  }
}

Setup steps

1Open Claude Desktop → Settings → Developer → Edit Config (this opens ~/Library/Application Support/Claude/claude_desktop_config.json).
2Paste the LLDB-MCP config below under the top-level "mcpServers" key.
3Fill in any placeholder secrets (API keys, paths) in the snippet.
4Save the file, then fully quit and reopen Claude Desktop.
5Open a chat and confirm LLDB-MCP's tools appear under the 🔌 tools menu.

Before you start

Python 3.7+
LLDB installed on the system
Claude desktop app with MCP support
The mcp Python package (pip install mcp)

What LLDB-MCP can do in Claude Desktop

lldb_start

Start a new LLDB session.

lldb_terminate

Terminate an LLDB session.

lldb_list_sessions

List all active LLDB sessions.

lldb_load

Load a program into LLDB.

lldb_attach

Attach to a running process.

lldb_load_core

Load a core dump file.

lldb_run

Run the loaded program.

lldb_continue

Continue program execution.

Security

The server can attach to running processes and execute arbitrary LLDB commands on the host. Check for permission issues when attaching to processes. Enable debug mode with the --debug flag for detailed logging.

LLDB-MCP + Claude Desktop FAQ

Where is the Claude Desktop config file?

Claude Desktop reads MCP servers from ~/Library/Application Support/Claude/claude_desktop_config.json. Paste the LLDB-MCP config there under the "mcpServers" key and restart the client.

Is LLDB-MCP safe to use with Claude Desktop?

How do I run LLDB commands that don't have a dedicated function?

Use the lldb_command tool to execute arbitrary LLDB commands directly.

How do I enable detailed logging?

Start the server with the --debug flag to enable debug mode for detailed logging.

What should I do if LLDB commands are timing out?

Check that LLDB is installed correctly and verify the path to LLDB when starting a new session.

View repo Full LLDB-MCP page