AstroNest Developer API

Praśna (horary) API

Send the question, where and when it was asked, and optionally a deal (a contract, a hire, a purchase) or a horary number from 1 to 249. The response reads the chart of that moment for the question.

Add the asker's birth data and the answer is also checked against their own periods.

POST /v1/prashna · 3 credits

Praśna (horary): a question, a deal, or a horary number

The chart of the moment and place a question is asked, read on classical praśna rules, no model. Always: the praśna lagna and its lord, the Moon, the house of the matter asked about, the classical rules that apply (recovery from illness for a health question; recovery of a lost article when the question names one), and the further classical rules that held on this chart, each with its reference 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 planetary 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 horary table — house cusps for the moment that number rises, planets at the moment of judgment, their ruling lords, and the ruling planets; no judgment is asserted from it. Rules about caste, prenatal sex or death timing are withheld and counted.

Request (works as-is with a sandbox key):

curl -X POST https://www.astronest.ai/api/developer/v1/prashna \
  -H "Authorization: Bearer astro_sandbox_YOUR_KEY" \
  -H "Content-Type: application/json" \
  -d '{"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}'

Response (sandbox sample, long lists shortened):

{
  "requestId": "sandbox",
  "engineVersion": "astro-nest-v1-public",
  "timestamp": "2026-10-15T03:34:14.464Z",
  "usage": {
    "units_charged": 0,
    "remaining_credits": 0
  },
  "disclaimer": "Symbolic interpretation only. Not medical, legal, financial, or psychological advice.",
  "domain": "prashna",
  "askedAt": "2026-10-14T05:00:00.000Z",
  "place": {
    "latitude": 28.6139,
    "longitude": 77.209,
    "timezone": "Asia/Kolkata",
    "label": "New Delhi"
  },
  "question": "Will the supply contract with Northwind be signed?",
  "prashna": {
    "lagna": "Scorpio",
    "lagnaLord": "Mars",
    "moonHouse": 1,
    "matterHouse": 7,
    "domain": "partnerships",
    "findings": [
      {
        "quote": null,
        "source": null,
        "holds": null,
        "because": "Praśna lagna Scorpio, its lord Mars in Cancer, the 9th. The Moon — the querent's own mind at the moment of asking — is in the 1st."
      },
      {
        "quote": null,
        "source": null,
        "holds": null,
        "because": "The matter asked about is read from the 7th of the praśna chart (Taurus), ruled by Venus in Libra, the 12th (domicile)."
      }
    ],
    "bookRules": {
      "held": [
        {
          "principle": "Ketu in the Lagna, 4th, or 10th house and Mandi in a Kendra can influence the native's life significantly.",
          "source": "Advanced Prashna",
          "direction": "mixed",
          "because": [
            "Ketu in the 10th",
            "Moon in the 1st"
          ],
          "scope": "universal"
        },
        {
          "principle": "The placement of the ascendant lord in the 5th or 9th house indicates greater luck and good fortune, particularly when placed in the 9th house.",
          "source": "KP Horary Houses 8 and 3",
          "direction": "support",
          "because": [
            "Mars in the 9th"
          ],
          "scope": "universal"
        },
        {
          "principle": "Malefic planets in the 9th house cause a reversal of luck for the subject, while in the 3rd house they cause a reversal of luck for the opposition.",
          "source": "Advanced Prashna",
          "direction": "challenge",
          "because": [
            "Mars in the 9th"
          ],
          "scope": "universal"
        },
        "… 1 more"
      ],
      "considered": 26,
      "withheld": 7
    }
  },
  "deal": {
    "deal": {
      "label": "Northwind supply contract",
      "kind": "contract"
    },
    "askedAtIso": "2026-10-14T05:00:00.000Z",
    "placeLabel": "New Delhi",
    "lagna": {
      "sign": "Scorpio",
      "degree": 19.14,
      "quality": "fixed",
      "shirshodaya": true
    },
    "moon": {
      "sign": "Scorpio",
      "degree": 7.81,
      "house": 1,
      "quality": "fixed",
      "lastContact": null,
      "nextContact": {
        "faster": "Moon",
        "slower": "Mars",
        "relation": "5-9",
        "friendly": true,
        "separation": 7.16,
        "orb": 10,
        "state": "ithasala",
        "line": "Moon 7.81° Scorpio → Mars 14.97° Cancer: 5-9, ithaśāla (applying, within the 10° orb), 7.16° apart"
      },
      "voidOfCourse": false
    },
    "significators": {
      "querent": "Mars",
      "counterparty": "Venus",
      "undertaking": "Sun",
      "gain": "Mercury",
      "matter": {
        "house": 7,
        "lord": "Venus",
        "why": "the 7th is the other party and the contract between you"
      }
    },
    "contacts": [
      {
        "faster": "Venus",
        "slower": "Mars",
        "relation": "4-10",
        "friendly": false,
        "separation": 3.04,
        "orb": 7.5,
        "state": "indeterminate",
        "line": "Venus 11.93° Libra → Mars 14.97° Cancer: 4-10, Venus is retrograde, so the application is not asserted, 3.04° apart"
      },
      {
        "faster": "Sun",
        "slower": "Mars",
        "relation": "3-11",
        "friendly": true,
        "separation": 11.67,
        "orb": 11.5,
        "state": "separated",
        "line": "Sun 26.64° Virgo → Mars 14.97° Cancer: 3-11, separated, out of orb, 11.67° apart"
      },
      {
        "faster": "Mercury",
        "slower": "Mars",
        "relation": "4-10",
        "friendly": false,
        "separation": 6.59,
        "orb": 7.5,
        "state": "isarapha",
        "line": "Mercury 21.55° Libra → Mars 14.97° Cancer: 4-10, iśarāpha (separating, within the 7.5° orb), 6.59° apart"
      },
      "… 1 more"
    ],
    "grounds": [
      {
        "id": "lords_1_7",
        "rule": "Lagnesa in itthasala/muthasila with 7L — the parties come to an agreement; 3-11 and 5-9 smoothly, 1-7 and 4-10 after obstacles (Praśnatantra 2.87a, 2.92).",
        "book": "Advanced Prashna (Sarajit Poddar), quoting Nīlakaṇṭha's Praśnatantra",
        "holds": false,
        "direction": "neutral",
        "because": "You (Mars, lagna lord) and Northwind supply contract (Venus, 7th lord): Venus 11.93° Libra → Mars 14.97° Cancer: 4-10, Venus is retrograde, so the application is not asserted, 3.04° apart."
      },
      {
        "id": "lords_1_10",
        "rule": "\"Lagnesa in Muthasila with 10L promises success to the Prcchaka\" (Praśnatantra 2.91b).",
        "book": "Advanced Prashna (Sarajit Poddar), quoting Nīlakaṇṭha's Praśnatantra",
        "holds": false,
        "direction": "neutral",
        "because": "Lagna lord Mars with 10th lord Sun: Sun 26.64° Virgo → Mars 14.97° Cancer: 3-11, separated, out of orb, 11.67° apart."
      },
      {
        "id": "benefic_10th",
        "rule": "\"Saumyas in 10H … promises success to the subject\" (Praśnatantra 3.45).",
        "book": "Advanced Prashna (Sarajit Poddar), quoting Nīlakaṇṭha's Praśnatantra",
        "holds": false,
        "direction": "neutral",
        "because": "No natural benefic in the 10th."
      },
      "… 10 more"
    ],
    "verdict": {
      "label": "perfects_after_obstacles",
      "meaning": "the connection forms, but against stated obstacles",
      "line": "Perfects through Moon→Mars (5-9, ithasala); obstacles: the lagna acts as fixed (Scorpio) — the status quo resists.",
      "gain": "indicated",
      "gainLine": "Gain is indicated from the 11th."
    },
    "natalCrossCheck": {
      "onIso": "2026-11-02",
      "window": {
        "fromIso": "2026-10-31",
        "toIso": "2027-01-25",
        "mahadasha": "Sun",
        "antardasha": "Mercury",
        "label": "guarded",
        "meaning": "low fixed cost only — no lease, no borrowing",
        "peak": false,
        "reasons": [
          "antardaśā lord Mercury in Aries, the 8th (a dusthāna), yuvā avasthā (full delivery) — fitness 35",
          "Mercury rules the 1st and 10th",
          "within Sun's mahādaśā, and Sun is weak (Sun in Aries, the 8th (a dusthāna), mṛta avasthā (delivery muted))"
        ]
      },
      "transitsRead": true,
      "agreement": "partial",
      "statement": "PARTIAL: the praśna says the deal perfects; the birth chart's commitment calendar marks it GUARDED — low fixed cost only — no lease, no borrowing (2026-11-02, Sun/Mercury, 2026-10-31 → 2027-01-25). Not in conflict, and not the same answer."
    },
    "notEncoded": [
      "Praśnatantra 3.46 (Moon in the lagna in itthasala with Mars → the querent \"captured or killed\"): a death reading, refused by the praśna layer's policy.",
      "KP horary sub-lord rules (KP Horary Houses 8 and 3; Bosmia): the cuspal sub-lord here is whole-sign, not KP.",
      "Tājika contacts across a sign boundary, and the special yogas (Nakta, Yamayā, Rudda, Kambūla proper): not computed, not asserted.",
      "… 1 more"
    ],
    "method": "DEAL PRAŚNA — cast for the moment and place the question about THIS deal was asked. Significators: lagna lord = you, 7th lord = the counterparty or contract, 10th lord = the undertaking, 11th lord = gain. A deal perfects when an applying Tā…"
  },
  "kpHorary": {
    "computed": true,
    "data": {
      "frame": "kp_horary",
      "horaryNumber": 108,
      "ayanamsha": "krishnamurti",
      "ayanamshaValue": 24.1344,
      "houseSystem": "placidus",
      "cuspMomentIso": "2026-10-13T23:08:04.835Z",
      "judgmentMomentIso": "2026-10-14T05:00:00.000Z",
      "latitudeValidated": true,
      "cusps": [
        {
          "house": 1,
          "sign": "Virgo",
          "degreeInSign": 3.0003,
          "longitude": 153.0003,
          "signLord": "Mercury",
          "starLord": "Sun",
          "subLord": "Saturn",
          "subSubLord": "Saturn"
        },
        {
          "house": 2,
          "sign": "Libra",
          "degreeInSign": 0.8914,
          "longitude": 180.8914,
          "signLord": "Venus",
          "starLord": "Mars",
          "subLord": "Mercury",
          "subSubLord": "Moon"
        },
        {
          "house": 3,
          "sign": "Scorpio",
          "degreeInSign": 1.3179,
          "longitude": 211.3179,
          "signLord": "Mars",
          "starLord": "Jupiter",
          "subLord": "Mars",
          "subSubLord": "Moon"
        },
        "… 9 more"
      ],
      "planets": [
        {
          "planet": "Sun",
          "retrograde": false,
          "sign": "Virgo",
          "degreeInSign": 26.7359,
          "longitude": 176.7359,
          "signLord": "Mercury",
          "starLord": "Mars",
          "subLord": "Jupiter",
          "subSubLord": "Mercury"
        },
        {
          "planet": "Moon",
          "retrograde": false,
          "sign": "Scorpio",
          "degreeInSign": 7.902,
          "longitude": 217.902,
          "signLord": "Mars",
          "starLord": "Saturn",
          "subLord": "Ketu",
          "subSubLord": "Saturn"
        },
        {
          "planet": "Mars",
          "retrograde": false,
          "sign": "Cancer",
          "degreeInSign": 15.0631,
          "longitude": 105.0631,
          "signLord": "Moon",
          "starLord": "Saturn",
          "subLord": "Jupiter",
          "subSubLord": "Jupiter"
        },
        "… 9 more"
      ],
      "rulingPlanets": {
        "dayLord": "Mercury",
        "moonSignLord": "Mars",
        "moonStarLord": "Saturn",
        "ascendantSignLord": "Mars",
        "ascendantStarLord": "Mercury",
        "inOrder": [
          "Mercury",
          "Mars",
          "Saturn"
        ]
      },
      "notComputed": [
        "the judgment: which cusp sub-lord answers the question, and whether it signifies the houses that fulfil it",
        "the significator ladder (planets in the star of occupants and owners) and the strongest-significator choice",
        "ruling-planet refinements: Rāhu/Ketu as agents of their sign and star lord, dropping a retrograde planet"
      ]
    }
  },
  "method": "Praśna (horary) is cast for the moment and place the question is asked, not for a birth: an independent classical method. Whole-sign houses in the Lahiri ayanāṁśa. `findings` are chart facts and hand-encoded classical dicta, each with wheth…"
}

Every field: /v1/prashna in the reference.

Why AstroNest

Deterministic interpretation

Interpret, guidance, compatibility and guna milan call no language model: the same chart always gets the same reading. Only forecast and timing are voiced by a model, and they are marked as such.

Nothing silently missing

Every reading declares each of its layers as present, computed_empty, not_covered or failed, so an absent field is never left to guesswork.

Pricing

Sandbox keys are free, with no time limit, and return the samples above. A live key starts with 100 free credits; after that you buy credit packs. Each endpoint's cost in credits is shown above. Pricing

Questions

Does it support horary numbers?
Yes, 1 to 249.
Is birth data required?
No. Praśna works from the moment of the question; birth data is optional.

Readings are symbolic interpretation, not medical, legal, financial or psychological advice.

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