The World's Most CompleteNatal Chart API
Professional natal charts with planets, houses, aspects, and AI interpretations.
Swiss Ephemeris precision. Hellenistic techniques. Under 300ms.
Why Choose Our API Over Standard Providers
Stop paying $399+/month for what we provide for $37. Get more features, faster performance, and AI-powered intelligence.
| Feature | RecommendedOur API | Standard Providers | Traditional Method |
|---|---|---|---|
| Calculation Types | 56+3.7x more features | 15 | Manual/Limited |
| Response Time | <300ms10x faster | 2-3s | Hours |
| AI Interpretations | Unique advantage | $200+/article | |
| Hellenistic Astrology | Exclusive feature | Requires expert | |
| Fixed Stars | 1000+Complete database | Manual lookup | |
| Arabic Parts | 97+20x more | Basic | Expert knowledge |
| Monthly Cost | $3790% savings vs traditional | $37 | $949+ |
| Setup Time | 1 hour720x faster setup | 1 day | 1-3 months |
Calculation Types
Response Time
AI Interpretations
Hellenistic Astrology
Fixed Stars
Arabic Parts
Monthly Cost
Setup Time
Traditional Approach Cost Breakdown
- Professional astrologer services: $150-300/hour
- Specialized software licenses: $200-500/month
- Content writer for interpretations: $200-300/article
- Development time: 80-120 hours at $100/hour
Our Complete Solution
- All features included
- AI-powered interpretations
- Swiss Ephemeris precision
- Forever free tier (1000 req/mo)
Everything You Need for Professional Astrology
From raw astronomical calculations to AI-powered interpretations, our comprehensive API provides every tool professional astrologers and developers need.
Swiss Ephemeris Precision
Astronomical accuracy matching $500+ desktop software with DE431 ephemeris and 0.001-degree precision.
23 House Systems
Support for all major house calculation methods including Placidus, Koch, Equal, Whole Sign, Campanus, and 18 more.
Traditional Techniques
Only API with complete Hellenistic astrology support: essential dignities, receptions, Arabic parts, profections.
AI-Powered Interpretations
Dynamic, context-aware interpretations using GPT-5, Claude Sonnet, and custom LLMs. Never generic, always personalized.
Lightning Fast
Sub-300ms response times even for complex calculations. 6x faster than industry average.
Complete Fixed Stars
1000+ fixed stars with positions, magnitudes, and interpretations. Includes Behenian stars and constellations.
Lunar Calculations
Moon phases, void of course, lunar mansions, and speed calculations for timing predictions.
Solar Returns & Progressions
Complete predictive techniques including solar returns, secondary progressions, and primary directions.
Aspect Patterns
Automatic detection of complex patterns: Grand Trines, T-Squares, Yods, Mystic Rectangles, and more.
Relocation Charts
Calculate how natal charts change in different locations. Perfect for astrocartography integration.
Data Validation
Automatic timezone detection, DST corrections, and coordinate validation for accurate calculations.
Batch Processing
Process up to 100 charts in a single API call. Perfect for applications needing bulk calculations.
Ready to Build Something Amazing?
Join thousands of developers using our API to create next-generation astrology applications.
Enterprise-Grade Technology Stack
Built on proven technologies for reliability, speed, and accuracy
Swiss Ephemeris Core
NASA JPL DE431 ephemeris data with milliarcsecond precision
AI Integration
GPT-5, Claude Sonnet, and custom LLMs for dynamic, personalized interpretations
Global CDN
Cloudflare edge network for sub-300ms responses worldwide
Security First
SOC 2 compliant, 256-bit encryption, GDPR ready
Get Started in Minutes, Not Months
15 Minutes
Time to first natal chart
113+ Examples
Working code samples
5 SDKs
Native language support
24/7 Support
Developer community
Simple, Transparent Pricing
Start free, scale as you grow. No hidden fees, no surprises.
Starter
For small apps and personal projects
- All basic endpoints
- 12 house systems
- Email support
Professional
For growing astrology applications
- All enhanced endpoints
- 23 house systems
- AI interpretations
- Priority support
Business
For high-volume applications
- ALL endpoints
- White-label ready
- Phone support
All plans include comprehensive documentation and SDKs
Questions? Talk to our team
Start Building Professional Astrology Applications Today
Join 2,847+ developers and astrologers using the world's most complete natal chart API
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