A few years ago, a couple of us were trying to build a really simple relationship compatibility app on the side. We figured finding a decent API to grab planetary positions would take maybe ten minutes. We were completely wrong.
The APIs we found out there were awful. Most of them were either abandoned side projects that crashed half the time, enterprise tools that cost thousands of dollars just to look at the documentation, or weird, messy XML wrappers that returned data in a structure that made absolutely no logical sense.
We spent weeks wrestling with bad documentation and broken endpoints before we realized something pretty obvious: developers who want to build cool stuff in the astrology space deserve way better infrastructure.
That’s basically how PlanetsXP started. We stopped building our little app, locked ourselves in a room, and figured out how to port the incredibly complex Swiss Ephemeris into a scalable microservice. Then we wrapped it in clean, modern REST endpoints that actually behave the way a normal developer expects them to.
We didn't want to add any mystical fluff to our docs or pretend we were gurus. We just wanted to provide predictable JSON, really fast server response times, and math you could actually trust in a production environment.
Today, PlanetsXP handles millions of API requests for developers all over the map. We’re powering everything from solo indie hackers making fun widgets on the weekend, to massive wellness platforms and dating apps serving thousands of users a minute. And we still geck out over the exact same things we did on day one: clean code and perfect math.
Astrology only works if the underlying math is flawless. We don't cut corners on calculations, and we run the industry-standard Swiss Ephemeris on the backend to guarantee exact precision.
We think about developer experience obsessively. If an endpoint takes you more than five minutes to figure out and successfully hit in Postman, we consider it a failure on our end.
When you email us with a problem, you aren't talking to a chatbot or a generic help desk. You're talking directly to the engineers who wrote the code for the API you're trying to use.
Grab a free sandbox key and you can make your first successful API request before your coffee gets cold.