Offline observational astronomy — planet and moon positions, rise/set, phases, eclipses, and seasons for any place and time via MCP. STDIO or Streamable HTTP.
cyanheads/astronomy-mcp-server is an MCP server distributed on github, maintained by cyanheads, tracked here since June 2026. It has shipped 13 releases and exposes 7 tools. Tools include astronomy_find_events, astronomy_get_ephemeris, astronomy_get_moon_phase, astronomy_get_rise_set, astronomy_get_satellite_passes, astronomy_get_sky_position, and 1 more. Its composite risk grade is A — an inferred review prompt computed from observed signals, not a verdict.
Since the previous scan on 2026-09-11: 7 tools added and 12 tools removed.
full security breakdown →-
astronomy_find_events -
astronomy_get_ephemeris -
astronomy_get_moon_phase -
astronomy_get_rise_set -
astronomy_get_satellite_passes -
astronomy_get_sky_position -
astronomy_list_visible
06-14 00:00 07-28 00:00 now
| version | date | src |
|---|---|---|
| v0.2.9 | 2026-08-25 | github |
| v0.2.8 | 2026-08-18 | github |
| v0.2.7 | 2026-08-18 | github |
| v0.2.6 | 2026-08-18 | github |
| v0.2.5 | 2026-08-18 | github |
| v0.2.4 | 2026-08-18 | github |
| v0.2.3 | 2026-07-31 | github |
| v0.2.2 | 2026-07-31 | github |
| v0.2.1 | 2026-07-30 | github |
| v0.2.0 | 2026-07-30 | github |