• Free to start. Sandbox keys are free with no time limit and return fixed sample responses. Every account also gets 100 free live credits once (not monthly), valid for 60 days from your first live key and spent before paid credits. When they are used up or expire, live calls return 402 credits_exhausted until you buy a pack; sandbox keys keep working.
• Ephemeris built in. Planet positions, cusps, ayanamsa and sunrise from AstroNest’s own NASA JPL DE440 engine, on the same key. No Swiss Ephemeris licence or second ephemeris API needed.
• Deterministic. Charts, daśās, readings and timing over the classical corpus, the same answer every time.
• Pay as you go. Credit packs are one-time and never expire. Buy one when the free credits run out; only successful calls are charged.

Creating an account takes you straight into the portal. One account works here and in the AstroNest app.