You already know how to read a tropical chart. But what about the Vedic nakshatras? The BaZi pillars? The Human Design bodygraph? The Gene Keys Golden Path? The Aristotelian humoral balance? Stars Engine computes all of them from the same birth data — so you can see where traditions converge, diverge, and illuminate each other.
Every chart is analyzed across 148 systems. When multiple independent traditions point to the same conclusion, the signal is stronger than any single system alone.
Convergence scores measure agreement across independent systems — not "how much" of a trait, but how many traditions independently point to it. Source: 96 D0-D2 base systems, 500-chart validation set.
Generate a one-page prep sheet for any client in under 5 seconds. Current transits, progressed highlights, solar return themes, and the three most salient cross-tradition patterns. Walk into every session with more context than you could gather in an hour of manual prep.
Manage up to 50 clients (Practitioner tier). Store birth data, session notes, and chart histories. One-click recompute when you need fresh transits. CSV import for migrating from Solar Fire or Astro Gold.
Western tropical says "strong Mercury." Vedic says "Budha in Kendra." BaZi says "Output structure produces Fire." Human Design says "Ajna defined." When four traditions agree on communication gifts, your interpretation is backed by convergent evidence — not a single system's opinion.
Source-cited, professionally formatted PDFs you can hand to a client. Tropical natal + transits, Vedic dasha timeline, BaZi luck pillars, HD bodygraph, Gene Keys profile — all with source citations and confidence annotations. White-label on Practitioner tier.
Pair analysis across 42 systems. House overlays, HD connection types, karmic alignment scoring, psychological compatibility — all computed in parallel. See where two charts reinforce and challenge each other across traditions.
Find optimal dates for any event by searching forward across planetary hours, lunar phases, dignity conditions, and fixed star conjunctions. Filter by tradition (Vedic muhurta, Western electional, Chinese day selection).
Honest comparison against the tools professional astrologers use today. Stars Engine is a web application with an API — no installation, no platform lock-in, no license files to manage.
| Feature | Stars Engine | Solar Fire | Astro Gold | Parashara's Light |
|---|---|---|---|---|
| Western tropical | ✅ Full + 100+ derived systems | ✅ Comprehensive | ✅ Comprehensive | ❌ |
| Vedic / sidereal | ✅ Nakshatras, dasha, shadbala, navamsa | ❌ | ❌ | ✅ Comprehensive |
| Human Design | ✅ Bodygraph, gates, channels, profile | ❌ | ❌ | ❌ |
| BaZi / Chinese systems | ✅ Four Pillars, Zi Wei, I-Ching, 36 animal combinations | ❌ | ❌ | ❌ |
| Cross-tradition synthesis | ✅ 96-system convergence scoring | ❌ | ❌ | ❌ |
| Source-cited output | ✅ Every claim traced to a primary text | ❌ | ❌ | ❌ |
| API access | ✅ REST + MCP, 28 endpoints | ❌ | ❌ | ❌ |
| Web-based (no install) | ✅ Any browser, any device | ❌ Windows only | ❌ Mac/iOS only | ❌ Windows only |
| Client management | ✅ 50 clients (Practitioner), CSV import | ✅ Built-in | ❌ | ❌ |
| Price | $0–199/mo | $399 once | $199 once | $299 once |
Stars will not interpret your client's chart. It will not tell them what to do. It will not replace your judgment or your relationship with them.
What it will do: compute 148 systems from their birth data. Show you where those traditions agree and diverge. Let you seal predictions before transits and rate your accuracy after. Give your clients a self-service portal so they arrive at sessions prepared. Generate reports with source citations so your claims are verifiable. Track your prediction accuracy over time so you can demonstrate your expertise with data, not just experience.
The math: A practitioner billing $150/session who saves 20 minutes of prep per session recovers the subscription in the first week. Against the ~$1,000/yr fragmentation tax (Solar Fire + Parashara's Light + Maia Mechanics + PDF licenses), $708/yr replaces the entire stack.
Founding practitioners get free permanent accounts. In exchange: your professional assessment of what's useful, what's noise, and what's missing. Free tier includes full chart computation, spirit lookups, and cross-tradition exploration. Upgrade for session briefs, PDF reports, and client management.
Request Beta InviteInvite-only beta. No credit card. Your data and your clients' data are yours — we don't sell, rent, or monetize anything. Export or delete anytime.