INDEX / SCIENCE & MATH / CYCLECALCS
№ APD-02181
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№ APD-02181 · FIRST INDEXED 2026-08-27

CycleCalcs

Interpreted astronomy: sun and moon times, moon phases, planets, eclipses, seasons
SOURCE: DISCOVERY-PUBLICAPIS
DOMAIN: www.cyclecalcs.com
REGISTRY RECORD
AS OBSERVED — UNVERIFIED
AUTHnone
PRICINGfreemium
CATEGORIESscience & math
STATUSunclaimed
DOCS STATUSreachable
LAST CRAWL2026-08-27 05:42
ABOUT
FROM WWW.CYCLECALCS.COM
A free astronomy API. Version 2 is 29 endpoints of interpreted answers, computed live: moon phase, sunrise and sunset, planet visibility, eclipses, cycles and more. Version 1 stays frozen for existing callers.
ENDPOINTS
STRUCTURED FROM OPENAPI 3.1
GET
/v2
The discovery document: every endpoint, parameter, convention and limit
GET
/v2/conventions
Every convention, threshold, model and limit the API uses, as data
GET
/v2/enums
Every enumerated value the API can emit or accept, as data
GET
/v2/attribution
Every source behind every endpoint, with its licence and what it obliges a caller to do
GET
/v2/positions
Where every body is, in every frame, with refraction stated
GET
/v2/rise-set
Rise, transit, set and lower transit for any named object, with an explicit status at every latitude
GET
/v2/sun
The complete solar day: every named boundary, azimuth, day length and polar status
GET
/v2/moon
The Moon in render-ready form: phase, illumination, bright limb, libration
GET
/v2/time
Every time scale, sidereal time, solar time, the equation of time and the Julian dates
GET
/v2/seasons
Every equinox and solstice in a window, with the length of each season they bound
GET
/v2/apsides
Every perigee, apogee, perihelion and aphelion in a window, with its distance
GET
/v2/moon-nodes
Every crossing of the ecliptic by the Moon, the node longitudes and the eclipse seasons they define
+ 17 MORE ENDPOINTS IN THE SPEC
CHANGELOG
AS OBSERVED — FULL FEED →
2026-08-27 PRICING unknown → freemium
2026-08-27 SPEC not published → openapi 3.1