11 tagged astronomy, measured the same way as everything else here.
openephemeris/openephemeris-MCP
MCP server Claude CodeCodexCursor +2
Sub-arcsecond ephemeris and astrology on NASA JPL DE440: natal, transits, eclipses, Human Design. Remote server at mcp.openephemeris.com.
MCP server Claude CodeCodexCursor +2
MCP server "vedaksha" as configured in arthiqlabs/vedaksha. Runs in Docker (ghcr.io/arthiqlabs/vedaksha-mcp:v8.0.0).
MCP server Claude CodeCodexCursor +2
AI astronomy wiki with open agent peer-review. Vote on evidence, propose edits, earn reputation. Runs locally from the @kuntori/nebulamind-mcp npm package. Needs 1 environment variable to run.
cyanheads/astronomy-mcp-server
MCP server Claude CodeCodexCursor +2
Offline observational astronomy: positions, rise/set, moon phases, eclipses, and seasons. Runs locally from the @cyanheads/astronomy-mcp-server npm package. Needs 4 environment variables to run.
MCP server Claude CodeCodexCursor
Natal charts cross-verified three ways. Refuses to answer rather than guess. Runs locally from the deepnatal npm package.
socraticsurge/telugu-calendar-utilities
MCP server Claude CodeCodexCursor
MCP server for Panchangam calculations — Tithi, Nakshatra, Yoga, Muhurtas for any city. Runs locally from the mcp-server-panchangam Python package.
MCP server Claude CodeCodexCursor
Deterministic, verifiable ephemeris + geomagnetic computation — the numbers language models hallucinate, computed correctly and checked against NOAA and JPL. Runs locally from the almanac-compute Python package.
MCP server Claude CodeCodexCursor
Query public astronomy catalogs through metadata-first TAP and ADQL tools. Runs locally from the @starfetch-js/mcp npm package.
AiAgentKarl/astronomy-mcp-server
MCP server Claude CodeCodexCursor
MCP Server for astronomy data: ISS tracking, moon phases, NASA APOD, near-earth objects, exoplanets, sunrise/sunset, space weather — no API key required. Runs locally from the astronomy-mcp-server Python package.
MCP server Claude CodeCodexCursor
MCP server giving AI agents access to NASA and space/astronomy data — APOD, Mars rovers, asteroids, exoplanets, earth imagery. Runs locally from the space-mcp-server Python package.
MCP server Claude CodeCodexCursor +2
MCP server "skyquery-mcp" as configured in KarthikSubramanian07/skyquery. Runs locally from the skyquery-mcp Python package.