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Astronomical Moon Phase, Illumination % & Lunar Cycle Oracle

Calculates current synodic lunar age (days), illuminated fraction %, and moon phase name (New Moon, Waxing Crescent, First Quarter, Full Moon, Waning).

Call it (no API key)

GET https://api.agentdatahub.de/api/v1/call/geo-moon-phase-lunar?date=2026-10-26&compact=1

Full metadata: without compact=1 · Markdown: format=llm · Only some fields: add &fields=a,b.c · MCP: tool call_api with {"apiId":"geo-moon-phase-lunar"}

Parameters

Example response (live, compact)

{
  "apiId": "geo-moon-phase-lunar",
  "data_freshness": "live",
  "data": {
    "date": "2026-10-26",
    "lunar_age_days": 14.62,
    "illumination_pct": 100,
    "phase_name": "Full Moon"
  },
  "source": "100% Platform Astronomical Ephemeris Engine",
  "license": "100% Platform Owned Compute"
}

Source & license