简例MCP序回

Requirements

• Python 3.13+
• LTspice (for simulation — circuit editing works without it)
• An MCP-capable client (see MCP clients below)

Set simulator.path if LTspice isn't auto-detected (required on WSL)

```

Install

Any Python package installer works — pick whichever you already use.

```bash

uv (recommended — fast, installs in an isolated tool env and puts `ltspice-mcp` on PATH)

uv tool install ltspice-mcp

or plain pip (inside a venv or with --user)

pip install ltspice-mcp

Install from source

git clone https://github.com/Cognitohazard/ltspice-mcp.git
cd ltspice-mcp
uv sync   # or: pip install -e .

With pip 25.1+

pip install -e . --group dev pytest tests/ -v pyright ltspice-mcp ```

Configure

```bash cp ltspice-mcp.example.toml ltspice-mcp.toml

Generic stdio config

Every client below uses the same JSON snippet — only the config file path differs. Paste this into the client's MCP config file:

{
  "mcpServers": {
    "ltspice": {
      "command": "ltspice-mcp",
      "args": []
    }
  }
}

If ltspice-mcp isn't on the client's PATH (common on macOS GUI apps), use the absolute path — find it with which ltspice-mcp (Linux/macOS) or where ltspice-mcp (Windows).

WSL configuration

On WSL, LTspice.exe runs via Windows interop (not Wine), so spicelib can't auto-detect it across the WSL boundary. Set the Windows-side path explicitly in ltspice-mcp.toml:

[simulator]
path = "/mnt/c/Program Files/ADI/LTspice/LTspice.exe"

Simulation output is automatically redirected to a Windows temp directory. LTspice writes SQLite .db files alongside results, and these fail on UNC paths (\\wsl.localhost\...), which causes .MEAS data to be lost.

Configuration

Copy ltspice-mcp.example.toml to ltspice-mcp.toml and edit. All settings can be overridden with LTSPICE_MCP_ prefixed environment variables (highest precedence). The config file path itself can be set with --config PATH or the LTSPICE_MCP_CONFIG env var.

[simulator]
default = "ltspice"            # ltspice, ngspice, qspice, xyce (null = auto-detect)
path = ""                      # Explicit executable path (required on WSL)

[security]
allowed_paths = ["."]          # Sandbox: only these directories are accessible

[simulation]
max_parallel = 4               # Concurrent simulation limit
timeout = 300.0                # Default timeout in seconds

[analysis]
max_points = 10000             # Max waveform data points per trace

[plotting]
dpi = 150                      # Plot resolution
style = "seaborn-v0_8-darkgrid"  # Matplotlib style

[schematic]
symbol_paths = []              # Custom .asy symbol paths (auto-detected on Windows/WSL)

[logging]
level = "INFO"                 # DEBUG, INFO, WARNING, ERROR, CRITICAL