Compute APIs
Natal, transits, progressions, returns, synastry, and composite — structured chart payloads.
Developer API
TradAstro Open Platform
Ship natal, predictive, synastry, electional, and interpretation features on the same classical engine. Start free, upgrade when you need more points.
What you get
Interpretations & timing
Theme readings plus electional scans and life-chapter timing windows.
Clear metering
Weighted monthly points, key management in the console, docs in English and Chinese.
Plans & pricing
Pay online to activate a plan. For enterprise or private deploy, email us.
Free
Free
- 2,000 points / month
- Up to 2 API keys
- Try the API and light traffic
Starter
$9 / mo
$99 / yr (about 2 months free)
- 5,000 points / month
- Up to 5 API keys
- Personal projects and light products
Pro
$29 / mo
$289 / yr (about 2 months free)
- 50,000 points / month
- Up to 10 API keys
- Production apps with moderate volume
Business
$109 / mo
$1,099 / yr (about 2 months free)
- 150,000 points / month
- Up to 20 API keys
- Higher volume and more keys
For higher volume or private deploy, contact [email protected]