MCP Server for astronomy data: ISS tracking, moon phases, NASA APOD, near-earth objects, exoplanets, sunrise/sunset, space weather — no API key required
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# astronomy-mcp-server MCP Server for astronomy data — ISS tracking, moon phases, NASA APOD, near-Earth objects, exoplanets, space weather, and upcoming events. **No API key required.** [](https://badge.fury.io/py/astronomy-mcp-server) [](https://opensource.org/licenses/MIT) ## Tools (8) | Tool | Description | |------|-------------| | `tool_get_moon_phase` | Current moon phase, illumination %, next full/new moon | | `tool_track_iss` | ISS real-time position, altitude, speed, crew aboard | | `tool_get_astronomy_picture_of_day` | NASA APOD — daily astronomy image with explanation | | `tool_get_near_earth_objects` | Upcoming asteroid/comet approaches (NASA NeoWs) | | `tool_get_sunrise_sunset` | Sunrise, sunset, solar noon, twilight for any location | | `tool_get_space_weather` | Kp-index, solar wind, aurora alerts (NOAA SWPC) | | `tool_search_exoplanets` | Search 5800+ confirmed exoplanets (NASA Exoplanet Archive) | | `tool_get_upcoming_events` | Meteor showers, eclipses, solstices, moon phases | ## Data Sources - **NASA APOD** — api.nasa.gov (DEMO_KEY, 30 req/hour) - **Open Notify** — api.open-notify.org (ISS position + astronauts, free) - **NASA NeoWs** — Near Earth Object Web Service (DEMO_KEY) - **NASA Exoplanet Archive** — exoplanetarchive.ipac.caltech.edu (free TAP API) - **Sunrise-Sunset.org** — Free sunrise/sunset API - **NOAA SWPC** — Space Weather Prediction Center (free) - **Moon phases** — Calculated locally (no API needed) ## Installation ```bash pip install astronomy-mcp-server ``` ## Claude Desktop Configuration ```json { "mcpServers": { "astronomy": { "command": "astronomy-mcp-server" } } } ``` ## Example Usage ``` "What is today's moon phase?" → tool_get_moon_phase() "Where is the ISS right now?" → tool_track_iss() "Show me today's NASA astronomy picture" → tool_get_astronomy_picture_of_d…
Mapped onto the structured taxonomy from declared text and observed tool names. Confidence shown for derived entries.
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