# MCP Server for WinDbg Crash Analysis (MCP server)

> MCP Server for WinDbg Crash Analysis is an MCP server that bridges AI models with WinDbg for crash dump analysis, user-mode remote debugging, and kernel debugging. It has 1,607 GitHub stars, is released under the MIT license and runs locally with uvx mcp-windbg.

A Model Context Protocol server that bridges AI models with WinDbg for crash dump analysis, user-mode remote debugging, and kernel debugging.

## Key facts

| Fact | Value |
|---|---|
| Repository | https://github.com/svnscha/mcp-windbg |
| GitHub stars | 1,607 |
| License | MIT |
| Language | Python |
| Transport | stdio |
| Packages | pypi: mcp-windbg |
| Remote URL | none |
| Needs API key | no |
| Official | no |
| Works with | Claude Desktop, Claude Code, Cursor, VS Code |
| Category | Communication |
| Latest release | v1.4.0 (Sep 30, 2026) |
| Last commit | Sep 30, 2026 |
| MCP registry name | io.github.svnscha/mcp-windbg |

## Install

### Claude Desktop (claude_desktop_config.json)

```json
{
  "mcpServers": {
    "mcp-server-for-windbg-crash-analysis": {
      "command": "uvx",
      "args": [
        "mcp-windbg"
      ],
      "env": {
        "CDB_PATH": "your-value",
        "_NT_SYMBOL_PATH": "your-value"
      }
    }
  }
}
```

Settings > Developer > Edit Config. macOS: ~/Library/Application Support/Claude/, Windows: %APPDATA%\Claude\. Restart Claude Desktop afterwards.

### Claude Code

```sh
claude mcp add --env CDB_PATH=your-value --env _NT_SYMBOL_PATH=your-value --transport stdio mcp-server-for-windbg-crash-analysis -- uvx mcp-windbg
```

### Cursor (.cursor/mcp.json)

```json
{
  "mcpServers": {
    "mcp-server-for-windbg-crash-analysis": {
      "type": "stdio",
      "command": "uvx",
      "args": [
        "mcp-windbg"
      ],
      "env": {
        "CDB_PATH": "your-value",
        "_NT_SYMBOL_PATH": "your-value"
      }
    }
  }
}
```

Project file; use ~/.cursor/mcp.json to enable it in every project.

### VS Code (.vscode/mcp.json)

```json
{
  "servers": {
    "mcp-server-for-windbg-crash-analysis": {
      "type": "stdio",
      "command": "uvx",
      "args": [
        "mcp-windbg"
      ],
      "env": {
        "CDB_PATH": "your-value",
        "_NT_SYMBOL_PATH": "your-value"
      }
    }
  }
}
```

Config formats checked against the official docs on 2026-10-07.

## Environment variables

- `CDB_PATH`: Custom path to cdb.exe (optional)
- `_NT_SYMBOL_PATH`: Symbol path for Windows debugging (optional, defaults to Microsoft symbol server)

## Tools

- `list_dumps`: List crash dump files in a directory
- `open_cdb_dump`: Open and triage a crash dump
- `open_cdb_remote`: Attach to a user-mode remote debug server (-remote)
- `open_kd_session`: Attach to a kernel target (-k, KDNET / named pipe / serial)
- `open_kd_dump`: Open and triage a kernel crash dump (MEMORY.DMP, minidump)
- `run_cdb_command`: Run a command on a user-mode session
- `run_kd_command`: Run a command on a kernel session
- `close_cdb_session`: Close a user-mode session
- `close_kd_session`: Close a kernel session (resumes the target machine)
- `send_ctrl_break`: Break into a running live session
- `wait_for_break`: Wait for a target you resumed with g to stop again

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