ITASCA MCP Server

itasca-mcp

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itasca>model new ;now, with LLM.

itasca-mcp connects AI agents to ITASCA's geomechanics simulation software — PFC, FLAC, 3DEC, MPoint, and MassFlow — through the Model Context Protocol. Browse documentation, run simulations, and execute code, all through natural conversation.

itasca>model solve ;LLM solves.

Tools (10)

5 documentation tools — browse and search the selected engine's commands, Python API, and reference docs. No bridge required.

5 execution tools — interactive REPL, task submission, progress monitoring, interruption, and history. Requires bridge.

Example Prompts

• "Run a biaxial compression test on a dense specimen and plot the stress–strain curve"
• "Build a slope model in FLAC3D and find the factor of safety"
• "Model a tunnel excavation in jointed rock with 3DEC and check block displacements around the opening"
• "Simulate a landslide runout with MPoint and report the final deposit profile"
• "The simulation is still running — check the current unbalanced force without stopping it"
• "What's different about the zone commands between FLAC 7.0 and 9.0?"

First-time Setup

Prerequisites

• An ITASCA engine installed — PFC, FLAC, 3DEC, MPoint, or MassFlow. 9.0+ recommended; PFC 6.0 / 7.0, FLAC 7.0, and 3DEC 7.0 are also supported.
• uv installed (for uvx)
• An AI agent — Claude Code, Codex CLI, Gemini CLI, or any MCP-capable client

Agentic Setup (Recommended)

Copy this to your AI agent and let it self-configure:

Fetch and follow this bootstrap guide end-to-end:
https://raw.githubusercontent.com/yusong652/itasca-mcp/main/docs/agentic/itasca-mcp-bootstrap.md

Manual Setup

1. Register the MCP server with your agent.

Most agents register it with a single command:

# Claude Code
claude mcp add itasca-mcp -- uvx itasca-mcp

# Codex / Codex-cli
codex mcp add itasca-mcp -- uvx itasca-mcp

# Gemini CLI
gemini mcp add itasca-mcp uvx itasca-mcp

Or fill in the MCP config file manually:

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

2. Start the bridge from inside the ITASCA engine:

Download addon.py, then use either of these two flows inside the engine GUI (PFC, FLAC, 3DEC, ...):

• Copy the file contents into the engine's IPython console and run them
• Or download the file and execute it in the engine GUI

Verify

Restart your AI agent and ask it to call itascaexecutecode to verify the connection.

Daily Startup

Shortened. The full README is on GitHub.