gmat-mcp (Guy2Es)

MCP serverCommunity

Builds GMAT missions from a declarative spec, compiles them to scripts and runs them in an isolated worker through the GMAT API. By Guy2Es.

0 starsUpdated 5 days agoGitHub data from 5 Nov 2026

At a glance

Type: MCP server
Works with: GMAT
How it connects: Drives a running copy of the tool
Access: Can modify models
Tool versions: GMAT R2026a tested (Windows 10; Linux worker through Docker)
Operating systems: Windows, Linux
Needs a GMAT licence: No
Transport: Local (stdio)
AI clients documented: Claude Desktop
Licence: MIT
Language: Python

What it can do

Defines spacecraft from Keplerian, Cartesian or TLE elements with force models covering harmonics, third bodies, drag and solar radiation pressure.
Plans impulsive and finite burns and targets them with GMAT's differential corrector, with about 50 GMAT quantities usable as outputs, stop conditions or targets.
Supports Earth and Moon as central bodies; a 91-day lunar frozen orbit matched JPL Horizons to 0.7 km in the author's test.
Keeps long runs going in the background and exports 3D trajectories, element plots, ground tracks, the GMAT script and Python.

Limitations

Alpha (0.1.0) by the author's own description.
Needs a GMAT install with its gravity, ephemeris and atmosphere data, and machine-specific loader files generated during setup.

Install

python -m venv gmat-mcp-env
gmat-mcp-env\Scripts\python.exe -m pip install -r requirements.txt

Source: github.com/Guy2Es/GMAT-MCP#setup

{
  "mcpServers": {
    "gmat-mcp": {
      "command": "C:/path/to/GMAT-MCP/gmat-mcp-env/Scripts/python.exe",
      "args": ["C:/path/to/GMAT-MCP/server.py"],
      "env": {"GMAT_INSTALL": "C:/GMAT"}
    }
  }
}

Source: github.com/Guy2Es/GMAT-MCP#setup

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