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STK MCP Server (zhang-forever)

MCP serverCommunity

Drives a running STK through Connect over TCP: scenarios, orbits, access, coverage, link budgets and conjunction screening. By zhang-forever.

4 starsUpdated 11 days agoGitHub data from 5 Nov 2026

At a glance

Type
MCP server
Works with
STK (Systems Tool Kit)
How it connects
Drives a running copy of the tool
Access
Can modify models
Tool versions
STK 11 or later with the Connect server enabled (port 5001)
Operating systems
Windows, Linux, macOS
Needs a STK (Systems Tool Kit) licence
Yes
Transport
Local (stdio)
AI clients documented
Claude Code, Claude Desktop
Licence
MIT
Language
Python

What it can do

  • Six domain tools with 58 actions for scenarios, objects, orbits, analysis and conjunction assessment, plus raw Connect command passthrough.
  • Defines orbits from TLE, Keplerian or Cartesian elements and ephemeris files, and builds Walker constellations, coverage regions and comm chains.
  • Computes access windows, AER data, coverage, link budgets, sensor fields of view and lighting.
  • Screens close approaches with CAT and computes collision probability with ACAT.
  • Ships Claude Code skills for constellation, coverage, conjunction, scenario and report work.

Limitations

  • STK must already be running with Connect enabled; Linux and macOS clients use Connect over TCP only.
  • Without the Windows COM extra, propagation defaults to a short window from the TLE epoch, so access and conjunction results can be incomplete.

Install

claude mcp add stk --scope user \
  --env STK_HOST=localhost --env STK_PORT=5001 \
  -- uvx --python 3.11 --from /path/to/stk-mcp stk-mcp

Source: github.com/zhang-forever/stk-mcp#client-configuration

MCP servers and skills run code on your computer. Review the source before installing.

Skills that come with it

SkillCommunity

STK skills (stk-mcp)by zhang-forever

Five Claude Code skills for STK work: Walker constellations, coverage, conjunctions, scenario setup and analysis reports.

Needs a STK (Systems Tool Kit) licence4· updated 11 days ago

AI-generated models, drawings and results must be checked by a qualified engineer before use.