Ekadashi Dates

Endpoint POST https://starsapi.com/api/v3/vedic/panchang/ekadashi

Returns the month's Ekadashi calendar with full vrat logic: separate Smarta and Vaishnava observance dates (split entries when they differ), Suddha/Viddha tithi analysis, Mahadvadashi detection (Unmilani, Vyanjuli, Trisprisha, Paksha-Vardhini and others — cases where the fast moves to Dwadashi), adhik-masa Ekadashis (Parama / Padmini), and per-tradition parana windows with Hari Vasara end times. The year-wide summary and the next upcoming Ekadashi ride along with every call.

Dates are location-dependent — sunrise at the supplied coordinates decides the observance day, so the same Ekadashi can fall a day apart between cities.

Authentication

Method	Example
Header (recommended)	`X-Api-Key: am_live_xxxxxxxxxxxx`
Bearer	`Authorization: Bearer am_live_xxxxxxxxxxxx`
Query	`?api_key=am_live_xxxxxxxxxxxx`

Request body

Field	Type	Required	Description
`year`	integer	Yes	Calendar year.
`month`	integer	Yes	Month, 1–12 — the list is filtered to this month; `summary` and `next` still consider the whole year.
`latitude`	number	Yes	Decimal degrees.
`longitude`	number	Yes	Decimal degrees.
`timezone`	string	Yes	IANA timezone (e.g. `Asia/Kolkata`).

Response shape

Field	Type	Description
`summary`	object	Year totals: entries, mahadvadashi count, adhik-masa months.
`next`	object	The next upcoming Ekadashi from today (full entry shape).
`ekadashis[]`	array	Per entry: observance `date`, `tradition` (smarta / vaishnava), `name` + Hindi, paksha, Hindu month in both systems, `is_adhik`, `type` (ekadashi / mahadvadashi with kind + description), `tithi` window (start, end, dwadashi end, Suddha flag), and `parana` per tradition (date, window, Hari Vasara end, notes).

Errors

HTTP	Code	Cause
400	`MISSING_FIELD`	Required field absent.
400	`INVALID_DATE`	Bad year/month.
400	`INVALID_TIMEZONE`	Non-IANA timezone.
400	`INVALID_COORDINATE`	Lat/lon out of range.
405	`METHOD_NOT_ALLOWED`	Non-POST request.

# Replace YOUR_API_KEY with the key from your dashboard
curl -X POST "https://starsapi.com/api/v3/vedic/panchang/ekadashi" \
  -H "X-Api-Key: YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
        "year": 2026,
        "month": 6,
        "latitude": 28.6139,
        "longitude": 77.209,
        "timezone": "Asia/Kolkata"
    }'

const response = await fetch(
  'https://starsapi.com/api/v3/vedic/panchang/ekadashi',
  {
    method: 'POST',
    headers: {
      'X-Api-Key': 'YOUR_API_KEY',
      'Content-Type': 'application/json'
    },
    body: JSON.stringify({
      year: 2026,
      month: 6,
      latitude: 28.6139,
      longitude: 77.209,
      timezone: 'Asia/Kolkata'
    })
  }
);
const result = await response.json();

if (result.success) {
  console.log(result.data);
}

import requests
import os

response = requests.post(
    'https://starsapi.com/api/v3/vedic/panchang/ekadashi',
    headers={'X-Api-Key': os.environ['STARSAPI_KEY']},
    json={
        'year': 2026,
        'month': 6,
        'latitude': 28.6139,
        'longitude': 77.209,
        'timezone': 'Asia/Kolkata'
    }
)
result = response.json()

if result['success']:
    print(result['data'])

<?php
$payload = [
    'year' => 2026,
    'month' => 6,
    'latitude' => 28.6139,
    'longitude' => 77.209,
    'timezone' => 'Asia/Kolkata',
];

$ch = curl_init('https://starsapi.com/api/v3/vedic/panchang/ekadashi');
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_POST, true);
curl_setopt($ch, CURLOPT_POSTFIELDS, json_encode($payload));
curl_setopt($ch, CURLOPT_HTTPHEADER, [
    'X-Api-Key: ' . getenv('STARSAPI_KEY'),
    'Content-Type: application/json'
]);

$response = curl_exec($ch);
$data = json_decode($response, true);

if ($data['success']) {
    print_r($data['data']);
}

import 'package:http/http.dart' as http;
import 'dart:convert';

Future<Map<String, dynamic>> getAscendant() async {
  final response = await http.post(
    Uri.parse('https://starsapi.com/api/v3/vedic/panchang/ekadashi'),
    headers: {
      'X-Api-Key': 'YOUR_API_KEY',
      'Content-Type': 'application/json',
    },
    body: jsonEncode({
      'year': 2026,
      'month': 6,
      'latitude': 28.6139,
      'longitude': 77.209,
      'timezone': 'Asia/Kolkata',
    }),
  );
  return jsonDecode(response.body);
}

import Foundation

func getAscendant() async throws -> [String: Any] {
    var request = URLRequest(url: URL(string:
        "https://starsapi.com/api/v3/vedic/panchang/ekadashi"
    )!)
    request.httpMethod = "POST"
    request.setValue("YOUR_API_KEY", forHTTPHeaderField: "X-Api-Key")
    request.setValue("application/json", forHTTPHeaderField: "Content-Type")
    request.httpBody = """
        {
            "year": 2026,
            "month": 6,
            "latitude": 28.6139,
            "longitude": 77.209,
            "timezone": "Asia/Kolkata"
        }
        """.data(using: .utf8)

    let (data, _) = try await URLSession.shared.data(for: request)
    return try JSONSerialization.jsonObject(with: data) as! [String: Any]
}

import okhttp3.*
import org.json.JSONObject

val client = OkHttpClient()
val JSON = "application/json; charset=utf-8".toMediaType()

fun getAscendant(callback: (JSONObject) -> Unit) {
    val payload = """
    {
        "year": 2026,
        "month": 6,
        "latitude": 28.6139,
        "longitude": 77.209,
        "timezone": "Asia/Kolkata"
    }
    """.trimIndent()

    val request = Request.Builder()
        .url("https://starsapi.com/api/v3/vedic/panchang/ekadashi")
        .addHeader("X-Api-Key", "YOUR_API_KEY")
        .post(payload.toRequestBody(JSON))
        .build()

    client.newCall(request).enqueue(object : Callback {
        override fun onResponse(call: Call, response: Response) {
            callback(JSONObject(response.body!!.string()))
        }
        override fun onFailure(call: Call, e: java.io.IOException) {
            e.printStackTrace()
        }
    })
}

package main

import (
    "bytes"
    "encoding/json"
    "fmt"
    "net/http"
    "os"
)

func main() {
    payload, _ := json.Marshal(map[string]interface{}{
        "year": 2026,
        "month": 6,
        "latitude": 28.6139,
        "longitude": 77.209,
        "timezone": "Asia/Kolkata",
    })

    req, _ := http.NewRequest("POST",
        "https://starsapi.com/api/v3/vedic/panchang/ekadashi",
        bytes.NewBuffer(payload))
    req.Header.Set("X-Api-Key", os.Getenv("STARSAPI_KEY"))
    req.Header.Set("Content-Type", "application/json")

    resp, _ := http.DefaultClient.Do(req)
    defer resp.Body.Close()

    var result map[string]interface{}
    json.NewDecoder(resp.Body).Decode(&result)
    fmt.Println(result["data"])
}

require 'net/http'
require 'json'

uri = URI('https://starsapi.com/api/v3/vedic/panchang/ekadashi')
payload = {
  'year' => 2026,
  'month' => 6,
  'latitude' => 28.6139,
  'longitude' => 77.209,
  'timezone' => 'Asia/Kolkata'
}

req = Net::HTTP::Post.new(uri)
req['X-Api-Key'] = ENV['STARSAPI_KEY']
req['Content-Type'] = 'application/json'
req.body = payload.to_json

http = Net::HTTP.new(uri.host, uri.port)
http.use_ssl = true
res = http.request(req)

data = JSON.parse(res.body)
puts data['data'] if data['success']

200 RESPONSE

{
  "status": 200,
  "success": true,
  "data": {
    "year": 2026,
    "month": 6,
    "maas_system": "purnimant",
    "tradition": "vaishnava",
    "summary": {
      "total_entries": 28,
      "mahadvadashi_count": 4,
      "adhik_masa": true,
      "adhik_months": ["Adhik Jyeshtha"]
    },
    "next": {
      "date": "2026-06-25",
      "name": "Nirjala Ekadashi",
      "tradition": ["smarta"],
      "paksha": "Shukla"
    },
    "total_count": 3,
    "ekadashis": [
      {
        "date": "2026-06-25",
        "day_of_week": "Thursday",
        "name": "Nirjala Ekadashi",
        "name_hindi": "\u0928\u093f\u0930\u094d\u091c\u0932\u093e \u090f\u0915\u093e\u0926\u0936\u0940",
        "tradition": ["smarta"],
        "paksha": "Shukla",
        "is_adhik": false,
        "type": "ekadashi",
        "tithi": {
          "type": "normal",
          "ekadashi_start": "2026-06-24 18:12:49",
          "ekadashi_end": "2026-06-25 20:09:52",
          "dwadashi_end": "2026-06-26 22:22:46",
          "is_suddha": true
        },
        "parana": {
          "smarta": {
            "date": "2026-06-26",
            "window_start": "05:25:13",
            "window_end": "22:22:46"
          }
        },
        "meta": { "deity": "Vishnu", "significance": "Most strict, equals all 24", "is_special": true }
      },
      {
        "date": "2026-06-26",
        "name": "Vaishnava Nirjala Ekadashi",
        "tradition": ["vaishnava"],
        "type": "mahadvadashi",
        "mahadvadashi": {
          "kind": "paksha_vardhini",
          "label": "Paksha-Vardhini",
          "description": "Following Purnima/Amavasya spanned two sunrises \u2014 fast moves to Dwadashi"
        },
        "parana": {
          "vaishnava": {
            "date": "2026-06-27",
            "window_start": "05:25:32",
            "hari_vasara_end": "02:43:06",
            "note": "Parana window closes on 2026-06-26 at 22:22:46"
          }
        }
      }
    ]
  },
  "meta": { "endpoint": "/api/v3/vedic/panchang/ekadashi", "version": "3.0" }
}