Engineering notes.
On ephemeris precision, computation architecture, MCP protocol, and all the details that don't fit into docs.
Free Astrology API: Which One Has the Best Free Tier in 2026?
A side-by-side of free tiers across the major astrology APIs — credits, request caps, card requirements — and how much you can actually build for free.
Read →Horoscope API Tutorial: Build a Daily Horoscope Feature
Add daily, weekly and monthly horoscopes to your app via API — sign-based text vs transit-based personalization — with TypeScript and Python code.
Read →Natal Chart API in PHP: SDK + Laravel Example
Compute a natal chart in PHP with the AstroWay SDK — plain PHP and a Laravel facade — without compiling a Swiss Ephemeris extension.
Read →Natal Chart API in Python: 3 Examples with the AstroWay SDK
How to compute a natal chart in Python via API — install, first request, transits and synastry — with working code and how it compares to pyswisseph and kerykeion.
Read →Natal Chart API in TypeScript: SDK + React Example
Compute a natal chart in TypeScript with the AstroWay SDK — typed responses, a React component, and where it beats a local ephemeris library.
Read →How Accurate Is the Swiss Ephemeris? Verified Benchmarks
Swiss Ephemeris accuracy in numbers — planetary positions under 0.1 arcsecond, exact house cusps, eclipses within a minute — and how AstroWay verifies it.
Read →Swiss Ephemeris: REST API vs pyswisseph (When to Use Which)
pyswisseph vs a REST API for Swiss Ephemeris calculations — C dependencies, data files, licensing and deployment compared, with a decision guide.
Read →Vedic Astrology API: Dashas, Vargas, Panchang & Lal Kitab
AstroWay ships the deepest Vedic coverage among commercial APIs: 10 dasha systems, 16 vargas, Panchang, Lal Kitab, KP, Jaimini. 10K free credits/month.
Read →Pricing v2: packs, transparency, 25% annual — Week 1 recap
In 7 days we rebuilt the pricing model: unified Reports, added 3 add-on packs ($9 Esoteric, $19 Vedic, $99 Reports), bumped the annual discount to 25% with credit rollover, and published per-endpoint cost for all 700+ endpoints. What it means for your integration.
Read →Launching AstroWay API: Comprehensive Astrology Endpoints with Swiss Ephemeris Accuracy
After 3 years of building astrology calculation tooling for our own consumer apps, we're opening the API to outside developers. Here's what's in it, why we built it, and the hard tradeoffs we made.
Read →Astrology API Quick Start: TypeScript & Python in 5 Minutes
Install the SDK, get an API key, make your first natal chart request. 5 minutes, working code in TypeScript and Python.
Read →Best Astrology APIs in 2026: A Developer's Comparison
A factual comparison of the major astrology APIs available to developers in 2026 — endpoints, pricing, SDKs, accuracy. No marketing fluff.
Read →How to Build an Astrology App: A Complete Developer Guide
Step-by-step guide to building an astrology app from scratch — API choice, architecture, first natal chart, adding synastry and transits, deployment.
Read →Human Design API: Build HD Apps with 12 Endpoints
Everything developers need to know about building Human Design apps via API. 12 endpoints, bodygraph calculation, group dynamics with Penta, code examples.
Read →Add Astrology to Your AI Agent with MCP
Model Context Protocol (MCP) lets AI agents call external tools. This guide shows how to add astrology calculations to Claude, ChatGPT, or custom agents in under 5 minutes.
Read →Rectification API: Birth Time Correction for Developers
Rectification is the process of correcting an unknown or imprecise birth time using life events. This post shows how to automate it via API with algorithmic and Trutine of Hermes methods.
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