AstroNest — Vedic Astrology & Ephemeris

Use this when the user asks whether they should wear a particular gemstone (blue sapphire, emerald, pukhraj, a crystal), or whether a stone they wear suits their chart. Answers the prescription, not the future: which planet the stone strengthens, what that planet owns from this ascendant, whether a classical rule (a dusthāna or kendrādhipati lordship, a māraka) argues against strengthening it, and whether the reason is permanent or lasts only as long as the running period. Returns a verdict — well_founded, period_bound, no_ground, contraindicated or unrecognised — with every ground for and against, the planet's capacity at its degree, when the chart puts the planet in scope, the stones the sources hold apart from it (checked against `alsoWearing`), and wearing detail (finger, metal, day, weight, with the book it comes from) only when the chart gives a reason to wear it. When the source states a caution about the stone, the response says so and names the book. A word that covers several stones ("sapphire") is answered with the candidates. Nothing here predicts what a stone does. Deterministic: no language model is called. The birth time is required. Cost: 5 credits per call (only successful calls are charged; a sandbox key is free and returns a fixed sample). Deterministic: the same input always gives the same answer. Example arguments: {"birthData":{"date":"1990-05-12","time":"14:35","timezone":"Asia/Kolkata","latitude":28.6139,"longitude":77.209},"gem":"blue sapphire","alsoWearing":["ruby"]}

Use this when the user asks for an auspicious date or time (muhūrta) to do something, such as a wedding, launch, move or purchase, within a date range at a given place. Scans each day in the range and ranks windows for the subject. The pañcāṅga is computed for `eventPlace`, never defaulted to the birthplace. Cost: 10 credits per call (only successful calls are charged; a sandbox key is free and returns a fixed sample). Deterministic: the same input always gives the same answer. Example arguments: {"subject":{"date":"1990-05-12","time":"14:35","timezone":"Asia/Kolkata","latitude":28.6139,"longitude":77.209},"eventPlace":{"latitude":19.076,"longitude":72.8777,"timezone":"Asia/Kolkata","label":"Mumbai"},"freeText":"signing a lease","rangeStart":"2026-11-01","rangeEnd":"2026-11-15"}

Use this when the user wants their birth chart (kundli): ascendant, planets in signs and houses, yogas, the current planetary periods, or a divisional chart such as the navāṁśa (D9). Sidereal (Lahiri) chart: ascendant, the nine grahas, twelve houses, yogas and the Vimśottarī daśā. A modern Western block is added unless `western` is false. With `location`, also astrocartography lines at that place and the chart's own frame relocated there. Includes the D9 and D10 divisional charts by default; ask for any of the sixteen ṣoḍaśavarga with `divisionals`. Cost: 1 credit per call (only successful calls are charged; a sandbox key is free and returns a fixed sample). Deterministic: the same input always gives the same answer. Example arguments: {"birthData":{"date":"1990-05-12","time":"14:35","timezone":"Asia/Kolkata","latitude":28.6139,"longitude":77.209}}

Use this when the user asks whether two people are a good match for marriage and wants the full reading, not only a score. For the fast 36-point score with Manglik alone, use get_guna_milan. Both charts read together for marriage. The 36-point Aṣṭakūṭa (guna milan) is one input: the verdict names the governing factor and says when it outweighs the score. Also returned: each chart's marital promise, sustainability and happiness, progeny, Manglik reckoned from the lagna, the Moon and Venus with mutual cancellation, a joint marriage-timing window, synastry, and caveats where an uncertain birth time would change the reading. Deterministic: no language model is called. Each partner is a BirthData object plus optional `name` and `gender`. Cost: 12 credits per call (only successful calls are charged; a sandbox key is free and returns a fixed sample). Deterministic: the same input always gives the same answer. Example arguments: {"a":{"date":"1990-05-12","time":"14:35","timezone":"Asia/Kolkata","latitude":28.6139,"longitude":77.209,"name":"A"},"b":{"date":"1991-11-03","time":"06:10","timezone":"Asia/Kolkata","latitude":19.076,"longitude":72.8777,"name":"B"}}

Use this when the user asks which planetary period (daśā) they are in, when it ends, or which periods are coming. The current periods include the running pratyantardaśā; send depth 'pratyantardasha' for the full timeline at that level. Cost: 1 credit per call (only successful calls are charged; a sandbox key is free and returns a fixed sample). Deterministic: the same input always gives the same answer. Example arguments: {"birthData":{"date":"1990-05-12","time":"14:35","timezone":"Asia/Kolkata","latitude":28.6139,"longitude":77.209}}

Use this when the user asks about one area of life — when marriage, children, career, money, property or another area is in focus, or what a given stretch of years holds for it. One life area across the whole life: the planets that govern it on this chart, every period that bears on it (past and future, with dates, ages and why that planet governs it), each marked `primary` when the area is in focus or `also` when the period only touches it, and what is in focus now and next, in plain words. Pass `window` to get only the periods that overlap a date range. It is the same reading as the whole-life reading, cut to one area, so the two never disagree. Health is read only as periods to give extra care, never as illness or lifespan. Deterministic: no language model is called. The birth time is required. Cost: 3 credits per call (only successful calls are charged; a sandbox key is free and returns a fixed sample). Deterministic: the same input always gives the same answer. Example arguments: {"birthData":{"date":"1990-05-12","time":"14:35","timezone":"Asia/Kolkata","latitude":28.6139,"longitude":77.209},"area":"relationship","window":{"from":"2026-01-01","to":"2031-12-31"}}

Use this when you need the ascendant, midheaven or house cusps for a moment and place. Ascendant, midheaven and twelve cusps for a moment and place. Placidus is undefined beyond the polar circles at some moments; the call then returns 422 houses_undefined_at_latitude. Cost: 0.1 credit per call, billed as 1 credit per started block of 10 Ephemeris calls (only successful calls are charged; a sandbox key is free and returns a fixed sample). Deterministic: the same input always gives the same answer. Example arguments: {"datetime":"1990-05-12T14:35:00+05:30","latitude":28.6139,"longitude":77.209,"houseSystem":"placidus"}

Use this when you need an ayanamsa value (Lahiri, Raman, Krishnamurti, Fagan–Bradley) at a moment. Lahiri, Raman, Krishnamurti and Fagan–Bradley (mean, without nutation) at a moment. Cost: 0.1 credit per call, billed as 1 credit per started block of 10 Ephemeris calls (only successful calls are charged; a sandbox key is free and returns a fixed sample). Deterministic: the same input always gives the same answer. Example arguments: {"datetime":"2026-10-06T00:00:00Z"}

Use this when you need where the Sun, Moon and planets are at a moment (sidereal or tropical), not a reading. Sun, Moon, planets and lunar nodes at one moment: longitude, latitude, distance, speed and retrograde flag, with sign, and nakṣatra and pada when sidereal. `equatorial: true` adds apparent right ascension and declination. Cost: 0.1 credit per call, billed as 1 credit per started block of 10 Ephemeris calls (only successful calls are charged; a sandbox key is free and returns a fixed sample). Deterministic: the same input always gives the same answer. Example arguments: {"datetime":"2026-10-06T06:00:00Z","bodies":["Sun","Moon","Mars","Jupiter","Saturn","TrueNode"],"zodiac":"sidereal","ayanamsa":"lahiri"}

Use this when you need planetary positions across a range of dates, for a transit table or to find when a planet changes sign or stations. Positions from start to end (inclusive) every stepMinutes, for transit tables and station finding. At most 1,000 points (too_many_points beyond). A 365-point daily table costs 4 credits. Cost: 1 credit per started 100 points (only successful calls are charged; a sandbox key is free and returns a fixed sample). Deterministic: the same input always gives the same answer. Example arguments: {"start":"2026-10-01T00:00:00Z","end":"2026-10-10T00:00:00Z","stepMinutes":1440,"bodies":["Mercury","Venus"]}

Use this when you need sunrise and sunset for a date and place, or where the Vedic day begins. Sunrise, sunset and the next sunrise for a local date and place: upper limb at the sea-level horizon with 36.6′ refraction. The Vedic day runs from sunrise to the next sunrise. Cost: 0.1 credit per call, billed as 1 credit per started block of 10 Ephemeris calls (only successful calls are charged; a sandbox key is free and returns a fixed sample). Deterministic: the same input always gives the same answer. Example arguments: {"date":"2026-10-06","timezone":"Asia/Kolkata","latitude":28.6139,"longitude":77.209}

Use this when the user asks an open question about what lies ahead in one area of life and wants a written answer. It takes tens of seconds; for a fast, structured verdict use interpret_domain. The interpret verdict for `domain`, voiced as a narrative answer to `question` by a language model grounded in the classical statements for the domain. Expect tens of seconds; set a client timeout of at least 90 s. Cost: 8 credits per call (only successful calls are charged; a sandbox key is free and returns a fixed sample). Voiced by a language model: allow up to 90 seconds. Example arguments: {"birthData":{"date":"1990-05-12","time":"14:35","timezone":"Asia/Kolkata","latitude":28.6139,"longitude":77.209},"domain":"career","question":"How will the next year unfold for my work?"}

Use this when the user asks how to conduct themselves in the period they are in: what to do and what to take care with, each with its classical reason. Guidance, not prediction. Plain-language guidance cards for each running daśā level (mahādaśā, antardaśā, …) at `referenceDate` (default: now). Cost: 3 credits per call (only successful calls are charged; a sandbox key is free and returns a fixed sample). Deterministic: the same input always gives the same answer. Example arguments: {"birthData":{"date":"1990-05-12","time":"14:35","timezone":"Asia/Kolkata","latitude":28.6139,"longitude":77.209}}

Use this when the user asks for the guna milan / kundli matching score (out of 36), or whether either person is Manglik. The classical Aṣṭakūṭa match for a pair (all eight kūṭas, with the Bhakoot and Nāḍī doṣas) and Manglik for both charts reckoned from the lagna, the Moon and Venus, with mutual cancellation. The same engine as /v1/compatibility, without the full reading: the score is one input, and /v1/compatibility reads each chart's marital promise, timing and doṣas on top of it. Deterministic, no language model. Cost: 2 credits per call (only successful calls are charged; a sandbox key is free and returns a fixed sample). Deterministic: the same input always gives the same answer. Example arguments: {"a":{"date":"1990-05-12","time":"14:35","timezone":"Asia/Kolkata","latitude":28.6139,"longitude":77.209,"name":"A"},"b":{"date":"1991-11-03","time":"06:10","timezone":"Asia/Kolkata","latitude":19.076,"longitude":72.8777,"name":"B"}}

Use this when the user wants their life as a whole: which life areas (marriage, children, career, business, money, property, family, travel, education, spirituality, health) are in focus when, across past and future, and where life stands now. The life's chapters (each mahādaśā in plain words, with dates and ages) and eleven life areas, each with the planets that govern it on this chart, every governing period past and future with why that planet governs it — each marked `primary` (the area is in focus) or `also` (the period only touches it) — and what is in focus now and next. Past periods are included, so the reading can be tested against a life already lived; send `recorded` events to place them on the timeline. Health is read only as periods to give extra care, never as illness or lifespan. Deterministic: no language model is called. The birth time is required. The full reading is large; pass `areas` to return only the life areas you need. Cost: 10 credits per call (only successful calls are charged; a sandbox key is free and returns a fixed sample). Deterministic: the same input always gives the same answer. Example arguments: {"birthData":{"date":"1990-05-12","time":"14:35","timezone":"Asia/Kolkata","latitude":28.6139,"longitude":77.209},"areas":["career","relationship"],"recorded":[{"type":"job_start","date":"2012-07-01","certainty":"exact"},{"type":"marriage","date":"2018-11-25","certainty":"exact"}]}

Use this when the user asks a specific question and wants it answered from the moment of asking rather than from a birth chart — "will this deal close?", "will I recover?", "will I find what I lost?" — or when a KP astrologer gives a horary number 1–249. Send where the user is as `place`; it is never defaulted. The chart of the moment and place a question is asked, read on the classical praśna rules, no model. Always: the praśna lagna and its lord, the Moon, the house of the matter asked about, the hand-encoded classical dicta that apply (recovery from illness for a health question; recovery of a lost article when the question names one), and the rules from the praśna books in the corpus that held on this chart, each with its book and the chart facts that made it hold. With `deal`: the deal praśna — significators (lagna lord = you, 7th = the other side, 10th = the undertaking, 11th = gain), their Tājika contacts, the grounds for and against, and an ordered verdict (perfects, perfects after obstacles, contested, delayed, delayed and contested, not perfected); add `birthData` for the natal commitment calendar beside it, never blended with it. With `horaryNumber` (1–249): the KP horary table — Placidus cusps in the Krishnamurti ayanāṁśa for the moment that sub rises, planets at the moment of judgment, sign/star/sub/sub-sub lords, and the ruling planets; no KP judgment is asserted. Rules about caste, prenatal sex or death timing are withheld and counted. Cost: 3 credits per call (only successful calls are charged; a sandbox key is free and returns a fixed sample). Deterministic: the same input always gives the same answer. Example arguments: {"place":{"latitude":28.6139,"longitude":77.209,"timezone":"Asia/Kolkata","label":"New Delhi"},"askedAt":"2026-10-14T10:30:00+05:30","question":"Will the supply contract with Northwind be signed?","deal":{"label":"Northwind supply contract","kind":"contract","signingDate":"2026-11-02"},"birthData":{"date":"1990-05-12","time":"14:35","timezone":"Asia/Kolkata","latitude":28.6139,"longitude":77.209},"horaryNumber":108}

Use this when the user asks how two people get on in a bond other than marriage — business partners, siblings, a parent and child, or friends. Reads the bond the way the classical method reads it: the houses that govern this kind of bond and their lords in each chart, the natural significators, whose planets fall in whose governing houses, and whether that reach runs both ways, plus the running periods in each chart that engage the bond. A bond meter (strong tie, workable or strained) is computed by a stated convention and returned with every point it is built from; it is not a classical score, since the texts give no arithmetic for a business or sibling match. Deterministic: no language model is called. Both birth times are required. For marriage, use the compatibility tool. Cost: 8 credits per call (only successful calls are charged; a sandbox key is free and returns a fixed sample). Deterministic: the same input always gives the same answer. Example arguments: {"type":"business","a":{"date":"1990-05-12","time":"14:35","timezone":"Asia/Kolkata","latitude":28.6139,"longitude":77.209,"name":"A"},"b":{"date":"1991-11-03","time":"06:10","timezone":"Asia/Kolkata","latitude":19.076,"longitude":72.8777,"name":"B"}}

Use this when the user or an astrologer asks for a specific classical computation — Ṣaḍbala, Aṣṭakavarga, Yoginī/Chara/Nārāyaṇa daśā, Varṣaphal, KP cusps, a named yoga, the birth pañcāṅga, Kuja doṣa, house lords and aspects — rather than for a reading. Pass `sections` to fetch only what is needed. The computed classical working for a chart, no model: Ṣaḍbala and bhāva bala (BPHS 27), Aṣṭakavarga with trikoṇa/ekādhipatya reduction and piṇḍas, the Aṣṭottarī, Kālacakra, Nārāyaṇa, Yoginī and Chara daśās with the periods running at `referenceDate`, the full Vimśottarī ladder, the Varṣaphal (Tājika annual chart) for the year running at `referenceDate`, KP cusps with sub-lords and ruling planets (labelled KP only when the KP frame was computed), classical and Nābhasa yogas, kārakāṁśa, argala, special lagnas, bhāva chalit, the natal pañcāṅga, house lords with graha dṛṣṭi, Kuja doṣa with its exceptions, and what would change under the Raman or KP ayanāṁśa. Each section is `{computed: true, data}` or `{computed: false, reason}` — a technique that cannot be computed for this chart (for example without a birth time) says why and the rest still return. No verdicts, scores or lifespan figures. Cost: 3 credits per call (only successful calls are charged; a sandbox key is free and returns a fixed sample). Deterministic: the same input always gives the same answer. Example arguments: {"birthData":{"date":"1990-05-12","time":"14:35","timezone":"Asia/Kolkata","latitude":28.6139,"longitude":77.209},"sections":["shadbala","dashas","panchanga"],"referenceDate":"2026-10-14T00:00:00Z"}

Use this when the user asks when to start, launch, sign, borrow or expand a business, or which line of business their chart supports. A calendar of the coming months in four labels — commit (sign, open, launch), build (keep building; commit only what can be undone), guarded (low fixed cost; no lease, no borrowing) and hold (no new fixed commitments) — each window with the daśā period running and the slow transits of Saturn and Jupiter over it, and the reasons. Describe the businesses being weighed in `ventures` and each is ranked on how strongly the chart supports it and whether the coming periods carry it, with the grounds, its best coming period, and a caution when it needs premises during a hold; name none and the full catalogue of business types is ranked. A ranking of chart support, never a probability of success. Deterministic: no language model is called. The birth time is required. Cost: 10 credits per call (only successful calls are charged; a sandbox key is free and returns a fixed sample). Deterministic: the same input always gives the same answer. Example arguments: {"birthData":{"date":"1990-05-12","time":"14:35","timezone":"Asia/Kolkata","latitude":28.6139,"longitude":77.209},"ventures":["software and data platform for businesses","a restaurant in a leased storefront","OneDot"],"months":36}

Use this when the user asks what their chart says about one area of life (career, marriage, finance, health, property, children, education, travel, legal and others) and a reproducible verdict with its reasons and sources is wanted. Prefer it to get_forecast when no written narrative is needed. Deterministic reading of one life area: the verdict, the factors for and against it, timing windows, whether the engine's own methods agree, and the classical books the reading draws on. Every layer is declared as present, computed_empty, not_covered or failed, so nothing is silently missing. No language model is called: the same chart always gets the same reading. Cost: 5 credits per call (only successful calls are charged; a sandbox key is free and returns a fixed sample). Deterministic: the same input always gives the same answer. Example arguments: {"birthData":{"date":"1990-05-12","time":"14:35","timezone":"Asia/Kolkata","latitude":28.6139,"longitude":77.209},"domain":"career"}

Use this when the user asks whether now, or a particular date or range, is a good time for a decision such as changing jobs, marrying or investing. It takes tens of seconds. The interpret verdict for `domain`, voiced by a language model as an answer to a decision `question`, read at `targetDate` (or the start of `dateRange`, or today when neither is sent): the verdict, the running daśā and eventTiming are taken at that day. A malformed or pre-birth date is refused with 400 (`invalid_target_date`, `invalid_date_range`). Expect tens of seconds; set a client timeout of at least 90 s. Cost: 7 credits per call (only successful calls are charged; a sandbox key is free and returns a fixed sample). Voiced by a language model: allow up to 90 seconds. Example arguments: {"birthData":{"date":"1990-05-12","time":"14:35","timezone":"Asia/Kolkata","latitude":28.6139,"longitude":77.209},"domain":"career","question":"Should I accept the offer?","targetDate":"2026-11-15"}