For builders and AI agents

Simple Astro API

The easiest simple astrology API for builders. Get planets and houses from one endpoint.

Built for fast prototyping, AI builders (astrology API AI), and lightweight apps. No complicated astrology options. Just the essentials.

7-day free trial$7/month after trialOne endpointSecure checkout via Stripe99.9% uptime target
Simple Astro API mascot in a star-chart cloak
First request
curl -X POST https://api.simpleastroapi.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. Perfect as an astrology API AI tool—give your LLM agents quick context without huge context-window bloat.

Response preview
{
  "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

Open full docs

One plan

Simple Astro API

The simplest astrology API AI integration. Keep one clean endpoint, one API key flow, and one dashboard.

$7/month
  • 7-day free trial
  • Then $7/month
  • 1 simple astro API endpoint
  • LLM & AI agent ready
  • Hosted MCP access included
  • Planets + houses response
  • Dashboard access
  • Cancel anytime

Frequently Asked Questions

Common questions about the Simple Astro API.

What makes this a "Simple Astro API"?

We stripped away the complexity of traditional endpoints. Instead of hundreds of parameters, you get just planets and houses.

Is this good for Astrology API AI integrations?

Yes! The small JSON response is incredibly token-efficient for LLMs and AI agents, making it the perfect astrology API AI tool for function calling.

Do I need to be an astrology expert?

Not at all. If you can make a POST request, you can use our simple astrology API.