Astrodynamics MCP

A Model Context Protocol server that gives any MCP-capable LLM client (Claude Code, Cursor, ChatGPT desktop, custom agents) authoritative astrodynamics tools: TLE/SGP4 propagation, Lambert solving, ground-station access, time-scale and coordinate-frame conversions, porkchop scans, B-plane targeting, satellite metadata, and - with optional extras - full NASA GMAT mission execution ([gmat]), NASA SPICE / NAIF kernel…. Its 25 documented tools cover spice, gmat, plot, time.

People connecting web framework tools to Claude, Cursor, VS Code, or another MCP client. The project is written in Python.

VERIFIED ACTIVE

LAST COMMIT 2026-06-07 · ★ 2 · #31 OF 48 MAINTAINED WEB FRAMEWORK · VERIFIED 2026-08-25

MIT · Python servers · how we verify → /methodology

01 · Install Astrodynamics MCP

Claude Code

claude mcp add astro-tools-astrodynamics-mcp -- uvx astrodynamics-mcp

Claude Desktop / Cursor / VS Code - add to config

{
  "mcpServers": {
    "astro-tools-astrodynamics-mcp": {
      "command": "uvx",
      "args": [
        "astrodynamics-mcp"
      ]
    }
  }
}

Same JSON for Cursor. For VS Code, rename the top-level key from `mcpServers` to `servers`.

Using another client? Same JSON, different key

Claude Desktop · mcpServers

Cursor · mcpServers

VS Code · servers

Windsurf · mcpServers

Zed · context_servers

Cline · mcpServers

Roo Code · mcpServers

Continue · mcpServers

LibreChat · mcpServers

Gemini CLI · mcpServers

Codex CLI · mcp_servers

Full setup guides: every client.

02 · Evidence

Security posture

What to check before giving this server access to your agent - from the registry, GitHub, and our own probes. We don't score safety; we show what's verifiable.

runs as local process (stdio) - runs on your machine with your user's permissions

license MIT - declared in the repository

pypi package astrodynamics-mcp - check the name against the project README before installing (PyPI has no namespace ownership)

registry namespace io.github.astro-tools is GitHub-verified and matches the repo owner

03 · What Astrodynamics MCP can do

Prose above is summarized from the project's README and registry record - no invented capabilities.

What you can build

With this server connected, an agent can fetch current TLEs by NORAD ID, name, or group - from CelesTrak (default) or Space-Track, run a complete GMAT mission, read the raw text of a file produced by a prior run (ephemerides, reports too large to inline), and list the kernels currently furnished in the pool, optionally filtered by category.

Capability map

Tools grouped from the project's README - what Astrodynamics MCP lets an agent do.

Spice

7 tools - e.g. Furnish a kernel into the pool from a local path or a NAIF https URL (allowlisted, cached); a meta-kernel furnishes all it lists.; List the kernels currently furnished in the pool, optionally filtered by…

spice_load_kernel · spice_list_kernels · spice_unload_kernel · spice_state · spice_frame_transform · spice_body_parameters…

Gmat

5 tools - e.g. Run a complete GMAT mission; returns a parsed summary, report data, and pointers to large outputs.; Parameter sweeps and Monte Carlo (grid / samples / Monte Carlo / Latin hypercube) over a mission.…

gmat_run_mission · gmat_sweep · gmat_execute_script · gmat_validate_script · gmat_read_run_artefact

Plot

3 tools - e.g. Render a satellite's sub-satellite ground track as a PNG over a lon/lat graticule, with the latitude / longitude extent inline.; Render an orbit or transfer arc as a 2D or 3D PNG about a central body…

plot_ground_track · plot_trajectory · plot_porkchop

Tle

1 tool - e.g. Fetch current TLEs by NORAD ID, name, or group - from CelesTrak (default) or Space-Track.

tle_lookup

Sgp4

1 tool - e.g. Propagate TLEs across UTC ISO 8601 epochs in TEME / ICRF / GCRS / ITRS / CIRS.

sgp4_propagate

Lambert

1 tool - e.g. Solve Lambert's problem; multi-rev solutions enumerated; two-impulse Δv on demand.

lambert_solve

Access

1 tool - e.g. Ground-station / observer access intervals over a window, with AOS / LOS / peak elevation.

access_windows

Time

1 tool - e.g. UTC / TAI / TT / TDB / UT1 / GPS / TCB / TCG conversions across ISO / JD / MJD / J2000-seconds / Unix.

time_convert

Latest releases

v0.4.0 · 2026-06-07

The visualisation release. Adds four visualisation tools behind an · optional [viz] extra - three matplotlib static-plot tools · (plot_ground_track, plot_trajectory, plot_porkchop) returning PNG · images, and…

v0.3.0 · 2026-06-06

The SPICE / NAIF release. Adds seven SPICE tools behind an optional · [spice] extra - kernel furnishing, SPK ephemeris state, frame · rotations, body parameters, and kernel-defined time conversions - backed · by NASA…

v0.2.2 · 2026-05-29

Repository packaging only; no change to the installed package, tool · behaviour, or numerical output. · Added · A root .mcp.json and a .plugin/plugin.json manifest, following the · Open Plugin Specification, so the…

04 · Who maintains Astrodynamics MCP

astrodynamics-mcp is maintained by astro-tools. It's the only MCP server we track from this author; the repo dates to May 2026.

05 · Facts

repository: github.com/astro-tools/astrodynamics-mcp
category: web framework - ranked #31 of 48 actively-maintained web framework servers as of 2026-08-25.
release cadence: 5 releases in the last 90 days (latest 2026-06-07)
registry: io.github.astro-tools/astrodynamics-mcp (active, first published 2026-05-27 · 9 versions)
packages: pypi:astrodynamics-mcp

06 · Astrodynamics MCP FAQ

Is Astrodynamics MCP still maintained?

Yes - as of 2026-08-25, its last commit was 2026-06-07 and it shipped 5 releases in the last 90 days. We re-verify nightly.

What can Astrodynamics MCP do?

How do I install Astrodynamics MCP?

Run `uvx astrodynamics-mcp`. You can also paste the ready-made client config above.

Does Astrodynamics MCP run locally?

Yes - it's a stdio server: it runs on your machine (via uvx) with your user's permissions. Your data stays local unless the server itself calls external APIs.

07 · Alternatives to Astrodynamics MCP

Alternatives to Astrodynamics MCP

Maintained web framework servers if Astrodynamics MCP isn't the fit.

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