Moon Phase (public, no key)
curl 'https://api.astroway.info/v1/public/moon-phase'Geocentric moon phase for a date (computed at noon UTC): deterministic, no AI, no birth data. _footer watermark. The English phaseName, moonSign and sunSign are the stable identifiers to match on and never change; phaseKey is the eight-phase key (new, crescent, firstQuarter, gibbous, full, disseminating, lastQuarter, balsamic). moonDegree is the degree inside moonSign, distanceKm the Earth-Moon distance, and next the UTC moments of the next four principal phases after noon UTC of date. tithi is the Vedic lunar day (1-30, 12 degrees of elongation each, geocentric), voidOfCourse the void-of-course spans that touch the UTC day (start, end, the sign the Moon enters). The moonrise-counted lunar day depends on the place and is not given. meaning and keywords are English; localized carries them with the phase and sign names in the requested language (a language whose translation has not arrived yet gets the English text).
Parameters
Section titled “ Parameters ”Query Parameters
Section titled “Query Parameters ”Calendar date YYYY-MM-DD (UTC). Defaults to today.
Example
enLanguage for this call, overriding Accept-Language. The canonical per-call form: a page that renders in one language passes it here rather than reconfiguring its client. Unknown or inactive codes fall back to uk.
Comma-separated dotted paths, relative to data, to keep in the response. A path is applied to every element of an array, so planets.name means the name of each planet. Paths that match nothing come back in _fields_unmatched; a list where nothing matches at all is a 400, because an empty object would be a confident wrong answer.
Example
planets.name,planets.longitudeRound every non-integer number in the response to this many decimal places. Integers are left alone, because an id is not a measurement. Ecliptic longitudes ship with fourteen decimals by default; 2 is about a tenth of an arcminute.
Example
4Header Parameters
Section titled “Header Parameters ”BCP-47 language (e.g. uk, en, de). Set it once on your HTTP client as its default; for a single call, ?lang= overrides it. Unknown or inactive codes fall back to uk.
Responses
Section titled “ Responses ”OK
object
object
object
object
object
Free-tier watermark, present on every public response. Keys on a paid plan do not receive it.
Example
{ "ok": true, "data": { "date": "2026-10-06", "phase": 0.19061, "phaseName": "Waning Crescent", "phaseKey": "balsamic", "majorPhase": "between", "illuminationPercent": 19.06, "elongationDeg": 308.2271, "ageDays": 25.284, "waxing": false, "moonSign": "Leo", "sunSign": "Libra", "moonLongitude": 141.4802, "moonDegree": 21.4802, "distanceKm": 374721, "tithi": { "number": 26, "name": "Ekadashi", "paksha": "krishna", "indexInPaksha": 11, "elongation": 308.227, "percentComplete": 0.686 }, "voidOfCourse": [], "next": { "newMoon": "2026-10-10T15:50:05Z", "firstQuarter": "2026-10-18T16:12:41Z", "fullMoon": "2026-10-26T04:11:49Z", "lastQuarter": "2026-11-01T20:28:27Z" }, "meaning": "The close of the cycle: rest, cleansing and preparing for the new.", "keywords": [ "rest", "cleansing", "intuition", "completion" ], "localized": { "phaseName": "Спадний серп", "moonSign": "Лев", "sunSign": "Терези", "meaning": "Завершення циклу: відпочинок, очищення й підготовка до нового.", "keywords": [ "відпочинок", "очищення", "інтуїція", "завершення" ] } }, "_footer": "Powered by astroway.api - get your own key at https://api.astroway.info"}Invalid sign or date
Example
{ "ok": false, "error": { "code": "INVALID_SIGN", "message": "sign must be one of the 12 zodiac signs" }}