Astrology API

Natal birth charts with 4 house systems (Placidus, Koch, Whole Sign, Equal) covering all 14 celestial bodies (the 10 classical planets, the lunar nodes, Chiron, and Black Moon Lilith), the Ascendant, Midheaven, Part of Fortune, and Vertex, all major aspects, planetary dignities, and element/modality analysis

Every one of the four house systems is cross-verified cusp by cusp, all twelve of them, not just the Ascendant and Midheaven that most implementations check. Quadrant systems are the easy place for an astrology engine to be quietly wrong on the intermediate cusps while the angles look perfect, so each system is pinned against an independent reference across eight charts spanning both hemispheres and the equator to high latitude

Synastry compatibility and composite charts with relationship scoring, aspect patterns, Venus-Mars connections, and partnership dynamics

Publisher-grade daily, weekly, and monthly horoscopes with unique content per sign via whole-sign house system. Love, career, health, finance, advice sections, active transits, Moon data, energy rating, and date scheduling for editorial workflows

Solar returns, lunar returns, and planetary return charts for annual and monthly forecasting with customizable house systems

Detect classical aspect configurations including Grand Trine, Kite, T-Square, Grand Cross, Yod, Mystic Rectangle, and Stellium with apex identification, element and modality coherence, dissociate flagging, and tightness scoring for chart pattern callouts

Real-time transit calculations and transit aspect analysis with current planetary positions, applying/separating aspects, and personalized forecasts

Declination parallels and contraparallels for a month, the aspect family that does not depend on zodiacal distance at all: two bodies at the same declination read much like a conjunction, equal and opposite like an opposition, and both surface connections an aspect table cannot show. Geocentric declinations matching what an ephemeris publishes, verified against NASA JPL Horizons and independently cross-checked

Month-at-a-glance forecasting from two more calendar endpoints: every tropical sign ingress for all 14 bodies with its exact date and time, and every aspect that perfects during the month across the 13 non-lunar bodies, each with the nature of the aspect and how close it came. Both default to the month in progress, so a published calendar stays current without a redeploy

Node passages for a whole year: every moment a body crosses the plane of the ecliptic, ascending or descending, with the exact instant and the sign it falls in. These are what make an eclipse possible when a lunar crossing meets a New or Full Moon, and they are the timing practitioners reach for when working with the nodes

Moon phase tracking with current phase, upcoming phases calendar, and lunar cycle data for wellness, gardening, and ritual timing apps

Astrocartography planetary line maps, relocation charts, and local space directions for location based astrology, showing where each planet turns angular across the world, how the angles and houses shift for any city, and which compass directions carry each planet energy from your birthplace

Classical and traditional points: precessed fixed star positions with conjunctions to natal planets and angles (Regulus, Spica, Algol, and the royal and Behenian stars), and the Hermetic Arabic lots (Part of Fortune, Spirit, Eros, Necessity, Courage, Victory, Nemesis) computed by day and night sect

The asteroid goddesses (Ceres, Pallas, Juno, Vesta) and both Black Moon Lilith calculations (mean and true lunar apogee), the feminine-archetype and professional points that round out a serious natal reading beyond the ten planets

Predictive timing techniques: secondary progressions (the day-for-a-year progressed chart), solar arc directions, and annual profections with the traditional lord of the year, the methods professional astrologers use to time the unfolding of a life

Launch natal chart apps with professional-grade accuracy: birth charts, planet positions, house placements, aspects, and element analysis ready for your UI in days

Add zodiac compatibility scoring to dating apps: synastry analysis, composite charts, and compatibility scores with detailed relationship dynamics

Ship personalized horoscope platforms: publisher-grade daily, weekly, and monthly forecasts with unique content per sign, active transit metadata, Moon phase data, and date scheduling for editorial pre-publishing

Build AI astrology chatbots with MCP: your OpenAI, Claude, or Gemini agent auto-discovers and calls every astrology endpoint with zero integration code

Power wellness and lifestyle apps with real-time transits, moon phase calendars, solar returns, and planetary movement alerts for self-discovery features

Create astrology content engines: automated zodiac content with house-based uniqueness per sign, horoscope newsletters with real lunar event dates, transit alerts, and seasonal forecasts at scale

Build travel and relocation astrology features: astrocartography line maps, relocated charts for any city, and local space direction lines for apps that help users decide where to live, travel, or work

Serve traditional and Hellenistic astrology apps: precessed fixed star conjunctions and the classical Arabic lots, the depth that professional and traditional practitioners expect and that generic chart APIs skip

Add the asteroid goddesses (Ceres, Pallas, Juno, Vesta) and mean and true Black Moon Lilith for archetypal and feminine-centered readings, the points modern self-discovery and astrology apps increasingly feature

Build predictive and timing features: secondary progressions, solar arc directions, and annual profections power forecast timelines, year-ahead reports, and time-lord tools without any astronomy code of your own