10 min read
Best Astrology APIs in 2026: Pricing, Features, and AI Integration Compared
Compare the top astrology APIs for developers in 2026. Side-by-side pricing, feature coverage, MCP support, and multi-domain capabilities across 7 providers.
Blog
Insights, tutorials, and updates from the RoxyAPI team
Featured Posts
14 min read
Best Astrology APIs for Developers in 2026: Complete Comparison Guide
Compare the top astrology APIs for developers in 2026. Features, pricing, accuracy, and AI readiness side by side.
All Posts
9 min read
Zodiac Sign API: Birthdate to Full Profile in 5 Minutes
Turn any birthdate into a zodiac sign, natal chart, daily horoscope, and compatibility score. Four endpoints, one API key, five minutes.
10 min read
VSOP87 vs JPL DE440: Which Planetary Ephemeris to Use
Compare VSOP87 and JPL DE440 planetary ephemeris models for accuracy, speed, and file size. Find out which fits your astrology app or astronomy project.
11 min read
Vimshottari Dasha Calculation: A Developer Guide
Learn the vimshottari dasha calculation algorithm, the 120-year planetary period system, and build dasha timelines with a working API.
9 min read
How to Verify Astrology Software Against NASA JPL
Learn to verify astrology accuracy using NASA JPL Horizons as ground truth. Step-by-step guide with tolerance thresholds, common errors, and automated testing.
9 min read
Tarot Data Model for Software: Cards, Spreads, Readings
How to design a tarot data model for applications. Covers card schemas, spread definitions, reading objects, database tables, and working API examples.
10 min read
Synastry Calculation for Developers: Comparing Two Charts
Learn how synastry calculation works, from inter-chart aspects and orb systems to composite charts. Build relationship compatibility features with a working API.
10 min read
Swiss Ephemeris AGPL Licensing for SaaS Developers
Swiss Ephemeris AGPL license requires SaaS apps to open source their entire codebase. Learn your options and AGPL-free alternatives for astrology APIs.
10 min read
Planetary Aspect Calculation for Developers: Orbs and Edge Cases
How to calculate planetary aspects correctly. Covers orb systems, the 360 degree wrap-around bug, applying vs separating detection, and a working API example.
12 min read
Placidus House Calculation for Developers: The Math
How Placidus house calculation works, the iterative algorithm behind house cusps, and why it breaks at extreme latitudes. Developer guide with working API example.
10 min read
Numerology Calculation Algorithms: Pythagorean vs Chaldean
How Pythagorean and Chaldean numerology calculations differ in letter mapping, digit reduction, and master number handling. A developer reference.
10 min read
Horoscope Generation for Developers: Transit Forecasts
How transit based horoscope generation works, from planetary positions to daily forecasts. Real API examples for developers building zodiac apps.
11 min read
Gun Milan Scoring Algorithm: How Kundli Matching Works
How the 36-point Gun Milan algorithm scores compatibility across 8 kootas. Covers Nadi dosha cancellation, Bhakoot exceptions, and API integration.