---
title: "Calculate bounded North-Indian Ashtakoota scores"
method: POST
path: "/api/astro/ashtakoota"
tags: ["Calculations"]
---

# Calculate bounded North-Indian Ashtakoota scores

`POST /api/astro/ashtakoota`

## Request

- Base URL: `https://api.cosmicephemeris.com`
- URL: `https://api.cosmicephemeris.com/api/astro/ashtakoota`
- Auth: one of:
  - HTTP bearer
  - API key in header `x-api-key`

Calculation-only eight-koota arithmetic using the versioned Saravali/Maitreya table set. Groom and bride are explicit directional roles. Returns the eight component scores and total out of 36 without a threshold verdict, dosha cancellation, medical claim, remedy, interpretation, or relationship advice. Sidereal-only; Lahiri default with Raman and Krishnamurti options. Each admitted request reserves one standard monthly usage unit; failed or timed-out admitted attempts are not refunded.
Historical mode uses an explicit BCE/CE date object and UT1 conventions. Its response is the versioned historical envelope, not the modern UTC envelope. Read result for calculation fields and metadata for limits and uncertainty.

## Request body

- union
  - AshtakootaRequest: Directional North-Indian Ashtakoota supported input. Groom and bride are explicit traditional table roles; reversing them can change asymmetric components.
    - `groom` CalculationBirthInput, required: Strict nested birth input; no unknown properties, nulls, booleans or numeric strings. Known civil time required; semantic date/DST/undefined-angle validation occurs on the server.
      - `date` string, date, required: Valid Gregorian YYYY-MM-DD local civil date, inclusive 1800-01-01 through 2200-12-31. Calendar validity and timezone conversion are checked by the server.
      - `time` string, required: HH:MM or HH:MM:SS; no offset in this field. Use timezone to select the civil-time zone.
      - `timezone` string: Valid IANA zone; UTC when omitted. Ambiguous and nonexistent civil times are rejected.
      - `lat` number, required
      - `lon` number, required
    - `bride` CalculationBirthInput, required: Strict nested birth input; no unknown properties, nulls, booleans or numeric strings. Known civil time required; semantic date/DST/undefined-angle validation occurs on the server.
      - `date` string, date, required: Valid Gregorian YYYY-MM-DD local civil date, inclusive 1800-01-01 through 2200-12-31. Calendar validity and timezone conversion are checked by the server.
      - `time` string, required: HH:MM or HH:MM:SS; no offset in this field. Use timezone to select the civil-time zone.
      - `timezone` string: Valid IANA zone; UTC when omitted. Ambiguous and nonexistent civil times are rejected.
      - `lat` number, required
      - `lon` number, required
    - `ayanamsa` 'lahiri' | 'raman' | 'krishnamurti' | 'fagan_bradley' | 'yukteshwar' | 'sassanian' | 'true_chitra' | 'true_revati' | 'true_pushya' | 'galactic_center_0_sagittarius' | 'galactic_alignment_mardyks'
  - HistoricalAshtakootaRequest: Explicit historical mode, 1000 BCE (BC)–2500 CE (AD). No year zero, implicit calendar, UTC or IANA zone. Preserve tool-specific mathematical, geographic and search limits; calendar/time conventions and estimated Delta-T are not certified historical accuracy.
    - `groom` HistoricalBirthInput, required
      - `date` HistoricalDate, required: Explicit civil date, 1000 BCE (BC)–2500 CE (AD); no year zero. Calendar validity is checked by the server. Available only on documented connected historical operations, with explicit UT1/fixed-offset conventions.
        - `year` integer, required
        - `era` 'BCE' | 'CE', required: Display BCE (BC) / CE (AD); API values remain BCE / CE. No year zero.
        - `month` integer, required
        - `day` integer, required
        - `calendar` 'proleptic_gregorian' | 'proleptic_julian', required: Explicit choice; applies the selected calendar rules throughout history without a regional adoption switch.
      - `time` string, required: Explicit HH:MM[:SS]; whole seconds only, no leap seconds. Normalized helper output includes seconds.
      - `timezone` string, required: Explicit UT1 or fixed offset UT1+/-HH:MM[:SS], within 14 hours. Local clock minus offset yields UT1, not UTC. No IANA timezone inference. Original offset spelling is preserved.
      - `lat` number, required
      - `lon` number, required
    - `bride` HistoricalBirthInput, required
      - `date` HistoricalDate, required: Explicit civil date, 1000 BCE (BC)–2500 CE (AD); no year zero. Calendar validity is checked by the server. Available only on documented connected historical operations, with explicit UT1/fixed-offset conventions.
        - `year` integer, required
        - `era` 'BCE' | 'CE', required: Display BCE (BC) / CE (AD); API values remain BCE / CE. No year zero.
        - `month` integer, required
        - `day` integer, required
        - `calendar` 'proleptic_gregorian' | 'proleptic_julian', required: Explicit choice; applies the selected calendar rules throughout history without a regional adoption switch.
      - `time` string, required: Explicit HH:MM[:SS]; whole seconds only, no leap seconds. Normalized helper output includes seconds.
      - `timezone` string, required: Explicit UT1 or fixed offset UT1+/-HH:MM[:SS], within 14 hours. Local clock minus offset yields UT1, not UTC. No IANA timezone inference. Original offset spelling is preserved.
      - `lat` number, required
      - `lon` number, required
    - `ayanamsa` 'lahiri' | 'raman' | 'krishnamurti' | 'fagan_bradley' | 'yukteshwar' | 'sassanian' | 'true_chitra' | 'true_revati' | 'true_pushya' | 'galactic_center_0_sagittarius' | 'galactic_alignment_mardyks'

## Response `200`

Successful bounded table calculation; not a compatibility verdict.

- union
  - AshtakootaResponse
    - `status` 'current', required
    - `type` 'ashtakoota', required
    - `input` object, required
      - `groom` NormalizedBirth, required: Synastry normalizes numeric coordinates, zodiac and ayanamsa. Supplied timezone is echoed (including null/empty string); omitted timezone is UTC.
        - `date` string, date, required: Valid Gregorian YYYY-MM-DD local civil date, inclusive 1800-01-01 through 2200-12-31. Calendar validity and timezone conversion are checked by the server.
        - `time` string, required: HH:MM or HH:MM:SS; no offset in this field. Use timezone to select the civil-time zone.
        - `timezone` string, nullable, required: IANA timezone name (for example America/New_York). Omission, null, or empty string means UTC for a birth input. Nonexistent or ambiguous local clock-change times return 400; provide the known UTC date/time with timezone UTC instead.
        - `lat` number, required
        - `lon` number, required
        - `zodiac` 'tropical' | 'sidereal', required
        - `ayanamsa` 'lahiri' | 'raman' | 'krishnamurti' | 'fagan_bradley' | 'yukteshwar' | 'sassanian' | 'true_chitra' | 'true_revati' | 'true_pushya' | 'galactic_center_0_sagittarius' | 'galactic_alignment_mardyks', required
      - `bride` NormalizedBirth, required: Synastry normalizes numeric coordinates, zodiac and ayanamsa. Supplied timezone is echoed (including null/empty string); omitted timezone is UTC.
        - `date` string, date, required: Valid Gregorian YYYY-MM-DD local civil date, inclusive 1800-01-01 through 2200-12-31. Calendar validity and timezone conversion are checked by the server.
        - `time` string, required: HH:MM or HH:MM:SS; no offset in this field. Use timezone to select the civil-time zone.
        - `timezone` string, nullable, required: IANA timezone name (for example America/New_York). Omission, null, or empty string means UTC for a birth input. Nonexistent or ambiguous local clock-change times return 400; provide the known UTC date/time with timezone UTC instead.
        - `lat` number, required
        - `lon` number, required
        - `zodiac` 'tropical' | 'sidereal', required
        - `ayanamsa` 'lahiri' | 'raman' | 'krishnamurti' | 'fagan_bradley' | 'yukteshwar' | 'sassanian' | 'true_chitra' | 'true_revati' | 'true_pushya' | 'galactic_center_0_sagittarius' | 'galactic_alignment_mardyks', required
      - `ayanamsa` 'lahiri' | 'raman' | 'krishnamurti' | 'fagan_bradley' | 'yukteshwar' | 'sassanian' | 'true_chitra' | 'true_revati' | 'true_pushya' | 'galactic_center_0_sagittarius' | 'galactic_alignment_mardyks', required
    - `birth_utc` object, required
      - `groom` string, date-time, required: Normalized UTC timestamp; fractional seconds may be present.
      - `bride` string, date-time, required: Normalized UTC timestamp; fractional seconds may be present.
    - `zodiac` 'sidereal', required
    - `ayanamsa` 'lahiri' | 'raman' | 'krishnamurti' | 'fagan_bradley' | 'yukteshwar' | 'sassanian' | 'true_chitra' | 'true_revati' | 'true_pushya' | 'galactic_center_0_sagittarius' | 'galactic_alignment_mardyks', required
    - `groom` AshtakootaClassification, required
      - `sidereal_moon_longitude` number, required
      - `moon_sign_index` integer, required
      - `moon_sign` 'Aries' | 'Taurus' | 'Gemini' | 'Cancer' | 'Leo' | 'Virgo' | 'Libra' | 'Scorpio' | 'Sagittarius' | 'Capricorn' | 'Aquarius' | 'Pisces', required
      - `nakshatra_index` integer, required
      - `nakshatra` string, required
      - `pada` integer, required
      - `varna` 'brahmin' | 'kshatriya' | 'vaishya' | 'shudra', required
      - `vashya` 'quadruped' | 'human' | 'jalachara' | 'leo' | 'scorpio', required
      - `yoni` 'horse' | 'elephant' | 'sheep' | 'serpent' | 'dog' | 'cat' | 'rat' | 'cow' | 'buffalo' | 'tiger' | 'deer' | 'monkey' | 'mongoose' | 'lion', required
      - `gana` 'deva' | 'manushya' | 'rakshasa', required
      - `nadi` 'adi' | 'madhya' | 'antya', required
    - `bride` AshtakootaClassification, required
      - `sidereal_moon_longitude` number, required
      - `moon_sign_index` integer, required
      - `moon_sign` 'Aries' | 'Taurus' | 'Gemini' | 'Cancer' | 'Leo' | 'Virgo' | 'Libra' | 'Scorpio' | 'Sagittarius' | 'Capricorn' | 'Aquarius' | 'Pisces', required
      - `nakshatra_index` integer, required
      - `nakshatra` string, required
      - `pada` integer, required
      - `varna` 'brahmin' | 'kshatriya' | 'vaishya' | 'shudra', required
      - `vashya` 'quadruped' | 'human' | 'jalachara' | 'leo' | 'scorpio', required
      - `yoni` 'horse' | 'elephant' | 'sheep' | 'serpent' | 'dog' | 'cat' | 'rat' | 'cow' | 'buffalo' | 'tiger' | 'deer' | 'monkey' | 'mongoose' | 'lion', required
      - `gana` 'deva' | 'manushya' | 'rakshasa', required
      - `nadi` 'adi' | 'madhya' | 'antya', required
    - `kootas` AshtakootaKootas, required
      - `varna` AshtakootaBasicScore, required
        - `score` number, required
        - `maximum` integer, required
        - `groom_value` string, required
        - `bride_value` string, required
      - `vashya` AshtakootaBasicScore, required
        - `score` number, required
        - `maximum` integer, required
        - `groom_value` string, required
        - `bride_value` string, required
      - `tara` AshtakootaTaraScore, required
        - `score` 0 | 1.5 | 3, required
        - `maximum` 3, required
        - `groom_value` string, required
        - `bride_value` string, required
        - `groom_to_bride_count` integer, required
        - `bride_to_groom_count` integer, required
        - `groom_to_bride_score` 0 | 1.5, required
        - `bride_to_groom_score` 0 | 1.5, required
      - `yoni` AshtakootaBasicScore, required
        - `score` number, required
        - `maximum` integer, required
        - `groom_value` string, required
        - `bride_value` string, required
      - `graha_maitri` AshtakootaGrahaMaitriScore, required
        - `score` number, required
        - `maximum` 5, required
        - `groom_value` string, required
        - `bride_value` string, required
        - `groom_lord_to_bride_lord` 'friend' | 'neutral' | 'enemy', required
        - `bride_lord_to_groom_lord` 'friend' | 'neutral' | 'enemy', required
      - `gana` AshtakootaBasicScore, required
        - `score` number, required
        - `maximum` integer, required
        - `groom_value` string, required
        - `bride_value` string, required
      - `bhakoot` AshtakootaBhakootScore, required
        - `score` 0 | 7, required
        - `maximum` 7, required
        - `groom_value` 'Aries' | 'Taurus' | 'Gemini' | 'Cancer' | 'Leo' | 'Virgo' | 'Libra' | 'Scorpio' | 'Sagittarius' | 'Capricorn' | 'Aquarius' | 'Pisces', required
        - `bride_value` 'Aries' | 'Taurus' | 'Gemini' | 'Cancer' | 'Leo' | 'Virgo' | 'Libra' | 'Scorpio' | 'Sagittarius' | 'Capricorn' | 'Aquarius' | 'Pisces', required
        - `groom_to_bride_sign_distance` integer, required
        - `bride_to_groom_sign_distance` integer, required
      - `nadi` AshtakootaBasicScore, required
        - `score` number, required
        - `maximum` integer, required
        - `groom_value` string, required
        - `bride_value` string, required
    - `total` object, required
      - `score` number, required
      - `maximum` 36, required
    - `metadata` object, required
      - `ruleset` 'saravali_cc_by_sa_4_0_v1', required
      - `source` 'https://saravali.github.io/astrology/astakoota.html', required
      - `source_license` 'CC-BY-SA-4.0', required
      - `role_order` 'groom_then_bride_directional_tables', required
      - `classification_precision` 'unrounded_binary64', required
      - `frame` 'apparent_geocentric_sidereal_retained_nutation', required
      - `practitioner_review` 'not_completed', required
      - `interpretations` false, required
      - `threshold_verdict` false, required
      - `dosha_cancellations` false, required
      - `medical_or_relationship_advice` false, required
  - HistoricalAshtakootaAshtakootaResponse
    - `schema` 'cosmicephemeris-historical-calculation-v1', required
    - `status` 'historical', required
    - `type` 'ashtakoota', required
    - `input` HistoricalAshtakootaRequest, required: Explicit historical mode, 1000 BCE (BC)–2500 CE (AD). No year zero, implicit calendar, UTC or IANA zone. Preserve tool-specific mathematical, geographic and search limits; calendar/time conventions and estimated Delta-T are not certified historical accuracy.
      - `groom` HistoricalBirthInput, required
        - `date` HistoricalDate, required: Explicit civil date, 1000 BCE (BC)–2500 CE (AD); no year zero. Calendar validity is checked by the server. Available only on documented connected historical operations, with explicit UT1/fixed-offset conventions.
          - `year` integer, required
          - `era` 'BCE' | 'CE', required: Display BCE (BC) / CE (AD); API values remain BCE / CE. No year zero.
          - `month` integer, required
          - `day` integer, required
          - `calendar` 'proleptic_gregorian' | 'proleptic_julian', required: Explicit choice; applies the selected calendar rules throughout history without a regional adoption switch.
        - `time` string, required: Explicit HH:MM[:SS]; whole seconds only, no leap seconds. Normalized helper output includes seconds.
        - `timezone` string, required: Explicit UT1 or fixed offset UT1+/-HH:MM[:SS], within 14 hours. Local clock minus offset yields UT1, not UTC. No IANA timezone inference. Original offset spelling is preserved.
        - `lat` number, required
        - `lon` number, required
      - `bride` HistoricalBirthInput, required
        - `date` HistoricalDate, required: Explicit civil date, 1000 BCE (BC)–2500 CE (AD); no year zero. Calendar validity is checked by the server. Available only on documented connected historical operations, with explicit UT1/fixed-offset conventions.
          - `year` integer, required
          - `era` 'BCE' | 'CE', required: Display BCE (BC) / CE (AD); API values remain BCE / CE. No year zero.
          - `month` integer, required
          - `day` integer, required
          - `calendar` 'proleptic_gregorian' | 'proleptic_julian', required: Explicit choice; applies the selected calendar rules throughout history without a regional adoption switch.
        - `time` string, required: Explicit HH:MM[:SS]; whole seconds only, no leap seconds. Normalized helper output includes seconds.
        - `timezone` string, required: Explicit UT1 or fixed offset UT1+/-HH:MM[:SS], within 14 hours. Local clock minus offset yields UT1, not UTC. No IANA timezone inference. Original offset spelling is preserved.
        - `lat` number, required
        - `lon` number, required
      - `ayanamsa` 'lahiri' | 'raman' | 'krishnamurti' | 'fagan_bradley' | 'yukteshwar' | 'sassanian' | 'true_chitra' | 'true_revati' | 'true_pushya' | 'galactic_center_0_sagittarius' | 'galactic_alignment_mardyks'
    - `result` object, required: Complete historical calculation adapter result. Times are explicit UT1 date records, never UTC strings; derived times may include fractional seconds and years outside the input range.
    - `metadata` object, required
      - `time_standard` 'UT1', required
      - `historical_accuracy_certified` unknown, required
      - `warnings` string[], required

## Other responses

- `400`: Invalid request, malformed JSON, out-of-range date/location, unknown model, invalid timezone or ambiguous/nonexistent clock-change time. Invalid attempts reaching quota reservation consume one unit.
- `401`: Missing, invalid, revoked API key or unavailable activated key owner. Dashboard cookies do not authenticate calculation routes.
- `403`: Origin not allowed by production CORS policy. Server-to-server requests can omit Origin.
- `404`: Wrong/case-variant/noncanonical or trailing-slash route; public paths have no version prefix.
- `413`: Request exceeds the body limit; gateway JSON is capped at 128 KiB. Edge failures may be HTML.
- `429`: Monthly quota exhausted, per-user two-request concurrency reached, or nginx rate/connection admission refused. Retry-After: 2 is sent for application per-user concurrency only, not a promise that monthly quota resets in two seconds.
- `500`: Bounded gateway/database/internal failure. An admitted attempt can still consume quota.
- `502`: Engine unavailable, unsuccessful internal server response or invalid upstream JSON. No engine internals are exposed.
- `503`: Four-request global calculation pool full (Retry-After: 2), maintenance or upstream service unavailable.
- `504`: Application engine timeout: 15 seconds normally; planetary events, house ingresses, aspect windows, event calendar, eclipse geometry, electional search, and event-rule search use 30 seconds; Nakshatra Timeline plus the explicitly enumerated readiness, robustness, location, uncertainty, and electional-audit family use 60 seconds. Timer includes response-body parsing; an admitted timeout consumes quota.

---

[API](https://skmtc.dev/cosmicephemeris/apis/cosmic-ephemeris-calculation-api.md) · [All operations](https://skmtc.dev/cosmicephemeris/apis/cosmic-ephemeris-calculation-api/llms.txt) · [OpenAPI document](https://skmtc.dev/cosmicephemeris/apis/cosmic-ephemeris-calculation-api/revisions/f041e924cea3?raw)