yusong652/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 (7)
2 documentation tools — browse by path and search by keywords across the selected engine's commands, Python API, FISH intrinsics, 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"
"Look up the plot commands in the docs, then plot the contact force chains of the current model"
"The command I just typed in the console doesn't seem right, take a look"
## 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:
text
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:
bash
# 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:
json
"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 itasca_execute_code to verify the connection.
## Daily Startup
Once first-time setup is done, each new engine session only needs the bridge re-started — run this in the engine's IPython console and you're back online:
python
import itasca_mcp_bridge
itasca_mcp_bridge.start()
start() checks PyPI for a newer bridge release and self-upgrades before starting. The MCP client config persists.
## Features
Multi-engine, multi-version corpus - command, Python API, and reference docs for PFC, FLAC, 3DEC, MPoint, and MassFlow across engine versions (PFC: 6.0/7.0/9.0, FLAC: 7.0/9.0, 3DEC: 7.0/9.0), selected via the software and version parameters