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

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

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
  }'

Node.js

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 transits = await res.json();
console.log(transits.planets); // Transit planet positions

Python

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()
print(transits['planets'])

PHP

<?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);
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

Caution

Range up to 365 days. Wider range = longer calculation (typically 0.5–2 seconds). Cost: 100 credits regardless of range length.

Example

cURL

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 '{
    "date": "1990-07-14",
    "time": "14:30:00",
    "timezoneOffset": 3,
    "latitude": 50.4501,
    "longitude": 30.5234,
    "startDate": "2026-04-01",
    "endDate": "2026-04-30"
  }'

TypeScript (fetch)

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({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.transitPlanet} ${event.aspect} ${event.natalPlanet}`);
}

Python

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={
        '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['transitPlanet']} {event['aspect']} {event['natalPlanet']}")

PHP

<?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' => [
        '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: %s %s %s\n", $e['date'], $e['transitPlanet'], $e['aspect'], $e['natalPlanet']);
}

Example response

{
  "events": [
    {
      "date": "2026-04-03",
      "transitPlanet": "Mars",
      "natalPlanet": "Sun",
      "aspect": "conjunction",
      "orb": 0.12,
      "exact": true
    },
    {
      "date": "2026-04-15",
      "transitPlanet": "Jupiter",
      "natalPlanet": "Moon",
      "aspect": "trine",
      "orb": 0.45,
      "exact": true
    }
  ]
}

Related endpoints

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

Next

• Natal chart — basic request
• Synastry — two-chart compatibility
• Human Design — full HD chart
• API reference — all 705 endpoints