For builders and indie hackers
Simple Astrology API
The easiest astrology API for builders. Get planets and houses from one simple endpoint.
Built for fast prototyping, AI builders, and lightweight apps. No complicated astrology options. Just the essentials.
curl -X POST https://api.freeastroapi.com/natal \
-H "x-api-key: YOUR_API_KEY" \
-H "Content-Type: application/json" \
-d '{
"year": 1990,
"month": 5,
"day": 15,
"hour": 10,
"minute": 30,
"lat": 48.8566,
"lng": 2.3522
}'1. Sign up
Create an account and start the 7-day free trial.
2. Copy your key
Open the dashboard and grab your API key.
3. Make one request
Send birth data and get planets plus houses back.
One endpoint
One job. One clear response.
The product centers on a single endpoint: /natal. It returns only the core building blocks most apps need: planets and houses.
No overwhelming docs tree. No report credits. No advanced switches in the pitch. Copy the example, add your API key, and ship.
{
"planets": {
"sun": { "sign": "Taurus", "house": 10 },
"moon": { "sign": "Cancer", "house": 12 },
"mercury": { "sign": "Gemini", "house": 11 }
},
"houses": {
"1": "Leo",
"2": "Virgo",
"3": "Libra",
"4": "Scorpio"
}
}Tiny docs preview
Beginner-friendly by design
Method: POST
Auth: x-api-key: YOUR_API_KEY
Body: year, month, day, hour, minute, lat, lng
Response: planets and houses only
One plan
Simple Astrology API
Start with a 7-day free trial. Keep one clean endpoint, one API key flow, and one dashboard.
- 7-day free trial
- Then $7/month
- 1 simple astrology endpoint
- API key access
- Planets + houses response
- Dashboard access
- Cancel anytime