Transits

Two endpoints for transit work:

Endpoint	Credits	What it does
`POST /v1/transits`	50	Transit chart for a specific date, overlaid on natal location
`POST /v1/transit-calendar`	100	Calendar of transit events over a date range

If you want to see the finished result first: transits in the AstroWay app run the same computation and draw the overlay on a wheel.

POST /v1/transits: overlay

Calculates planet positions on a given transit date in the natal location’s coordinates.

Parameters

All natal chart parameters (date, time, timezoneOffset, latitude, longitude, houseSystem) plus:

Parameter	Type	Required	Description
`transitDate`	string	Yes	Transit date `YYYY-MM-DD`
`transitTime`	string	No (`12:00:00`)	Transit time `HH:mm:ss`
`transitTzOffset`	number	No (0)	Transit timezone offset

Example

curl -X POST https://api.astroway.info/v1/transits \
  -H "X-Api-Key: aw_live_your_key_here" \
  -H "Content-Type: application/json" \
  -d '{
    "date": "1990-07-14",
    "time": "14:30:00",
    "timezoneOffset": 3,
    "latitude": 50.4501,
    "longitude": 30.5234,
    "transitDate": "2026-04-14",
    "transitTime": "12:00:00",
    "transitTzOffset": 3
  }'

const res = await fetch('https://api.astroway.info/v1/transits', {
  method: 'POST',
  headers: {
    'Content-Type': 'application/json',
    'X-Api-Key': process.env.ASTROWAY_API_KEY!,
  },
  body: JSON.stringify({
    date: '1990-07-14', time: '14:30:00', timezoneOffset: 3,
    latitude: 50.4501, longitude: 30.5234,
    transitDate: '2026-04-14', transitTime: '12:00:00', transitTzOffset: 3,
  }),
});
const { data: transits } = await res.json();
console.log(transits.planets); // Transit planet positions

import os, requests

r = requests.post(
    'https://api.astroway.info/v1/transits',
    headers={'X-Api-Key': os.environ['ASTROWAY_API_KEY'], 'Content-Type': 'application/json'},
    json={
        'date': '1990-07-14', 'time': '14:30:00', 'timezoneOffset': 3,
        'latitude': 50.4501, 'longitude': 30.5234,
        'transitDate': '2026-04-14', 'transitTime': '12:00:00', 'transitTzOffset': 3,
    },
)
transits = r.json()['data']
print(transits['planets'])

<?php
use GuzzleHttp\Client;

$aw = new Client(['base_uri' => 'https://api.astroway.info/v1/']);
$r = $aw->post('transits', [
    'headers' => ['X-Api-Key' => getenv('ASTROWAY_API_KEY')],
    'json' => [
        'date' => '1990-07-14', 'time' => '14:30:00', 'timezoneOffset' => 3,
        'latitude' => 50.4501, 'longitude' => 30.5234,
        'transitDate' => '2026-04-14', 'transitTime' => '12:00:00', 'transitTzOffset' => 3,
    ],
]);
$transits = json_decode($r->getBody(), true)['data'];
print_r($transits['planets']);

Response

Same structure as /v1/chart - full chart with planets, houses, aspects - but calculated for the transit date.

POST /v1/transit-calendar: event calendar

Scans a date range and returns a list of transit events: exact aspects of transit planets to natal planets, ingresses, retrogrades.

Additional parameters

Parameter	Type	Required	Description
`startDate`	string	Yes	Range start `YYYY-MM-DD`
`endDate`	string	Yes	Range end `YYYY-MM-DD`

Example

curl -X POST https://api.astroway.info/v1/transit-calendar \
  -H "X-Api-Key: aw_live_your_key_here" \
  -H "Content-Type: application/json" \
  -d '{
    "natal": {
      "date": "1990-07-14",
      "time": "14:30:00",
      "timezoneOffset": 3,
      "latitude": 50.4501,
      "longitude": 30.5234
    },
    "startDate": "2026-04-01",
    "endDate": "2026-04-30"
  }'

const r = await fetch('https://api.astroway.info/v1/transit-calendar', {
  method: 'POST',
  headers: { 'X-Api-Key': apiKey, 'Content-Type': 'application/json' },
  body: JSON.stringify({
    natal: {
      date: '1990-07-14',
      time: '14:30:00',
      timezoneOffset: 3,
      latitude: 50.4501,
      longitude: 30.5234,
    },
    startDate: '2026-04-01',
    endDate: '2026-04-30',
  }),
});
const { data: calendar } = await r.json();

for (const event of calendar.events) {
  console.log(`${event.date}: #${event.transitPlanetId} ${event.aspect.name} #${event.natalPlanetId}`);
}

import os, requests

r = requests.post(
    'https://api.astroway.info/v1/transit-calendar',
    headers={'X-Api-Key': os.environ['ASTROWAY_API_KEY'], 'Content-Type': 'application/json'},
    json={
        'natal': {'date': '1990-07-14', 'time': '14:30:00', 'timezoneOffset': 3,
                  'latitude': 50.4501, 'longitude': 30.5234},
        'startDate': '2026-04-01', 'endDate': '2026-04-30',
    },
)
calendar = r.json()['data']
for event in calendar['events']:
    print(f"{event['date']}: #{event['transitPlanetId']} {event['aspect']['name']} #{event['natalPlanetId']}")

<?php
use GuzzleHttp\Client;

$aw = new Client(['base_uri' => 'https://api.astroway.info/v1/']);
$r = $aw->post('transit-calendar', [
    'headers' => ['X-Api-Key' => getenv('ASTROWAY_API_KEY')],
    'json' => [
        'natal' => [
            'date' => '1990-07-14', 'time' => '14:30:00', 'timezoneOffset' => 3,
            'latitude' => 50.4501, 'longitude' => 30.5234,
        ],
        'startDate' => '2026-04-01', 'endDate' => '2026-04-30',
    ],
]);
$calendar = json_decode($r->getBody(), true)['data'];
foreach ($calendar['events'] as $e) {
    printf("%s: #%d %s #%d\n", $e['date'], $e['transitPlanetId'], $e['aspect']['name'], $e['natalPlanetId']);
}

Example response

{
  "startDate": "2026-04-01",
  "endDate": "2026-04-30",
  "maxOrb": 1,
  "count": 42,
  "events": [
    {
      "jd": 2461132.97998,
      "date": "2026-04-02T11:31:10.000Z",
      "transitPlanetId": 2,
      "natalPlanetId": 9,
      "aspect": { "name": "Trine", "i18nKey": "aspect_trine", "angle": 120, "orb": 12, "symbol": "△", "isMajor": true, "color": "#3366cc" },
      "transitLongitude": 345.005969,
      "natalLongitude": 225.005747,
      "isRetrograde": false
    }
  ]
}

Endpoint	Credits	What it adds
`/v1/forecast-calendar`	100	Annual forecast - 365-day heatmap
`/v1/progressions`	50	Secondary progressions
`/v1/solar-return`	50	Solar return (annual chart)
`/v1/aspect-timeline`	100	Aspect timeline over range