OpenFate
: How to use it, features, and the business problems it solves
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What is OpenFate?
OpenFate is a fortune-telling service that first calculates charts for BaZi (Four Pillars), Zi Wei Dou Shu, Western astrology, Vedic astrology, Human Design and Sukuyo (birth mansion) with fixed calculation rules, and then has AI explain only those calculated results. The AI never rewrites the calculated chart, and the screens show "chart data" and "interpretation" separately. Chart creation and one analysis a day are free, and compatibility readings, six divination tools such as tarot, and an auspicious-day calendar are also available. Japanese interface available. Paid options are Pro (¥4,800/month) and Pro Max (¥8,900/month) subscriptions, or one-time points (from ¥1,200 for 250 points). Operated by OPENFATE AI LLC in the United States.
Business problems it solves
About "OpenFate"
What is OpenFate?
OpenFate is a fortune-telling service that lets you build charts for BaZi (Four Pillars of Destiny), Zi Wei Dou Shu, Western astrology, Vedic astrology, Human Design and Sukuyo (your birth mansion) for free, and then have AI explain the results. The interface is available in Japanese, English, Chinese (Simplified and Traditional) and Korean, and the service is operated by OPENFATE AI LLC in the United States.
What sets it apart is that it splits the work into a fixed order: "calculate first, then let AI interpret." Your birth date, birth time and birthplace are turned into a chart by a rule engine with explicit calculation rules, and the AI only explains that result without rewriting it. A general-purpose chatbot asked to "work out my BaZi chart" can get the calculation itself wrong; OpenFate does not leave the calculation to AI.
BaZi, Zi Wei, Western/Vedic astrology and more
On the free plan
200 points every day
For unused points and similar cases
Source: OpenFate official website
What is calculated, and what the AI explains
OpenFate produces its results in three steps. Knowing where the calculation ends and the AI's writing begins makes the results easier to read.
The screens follow the same principle, separating chart data, traditional interpretation and the AI's explanation. For BaZi you move through the Day Master, Five Elements, Ten Gods, luck pillars and annual pillars; for Zi Wei Dou Shu through the Life and Body Palaces, the 12 palaces, main stars and the Four Transformations; for Western astrology from the Sun, Moon and Ascendant to the 12 houses and major aspects. For "integrated readings," which calculate two or three systems independently and compare them, OpenFate explicitly states that similar themes add perspective but "do not establish empirical reliability."
How to use it
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Pick a system and enter your birth data
Choose BaZi, Zi Wei Dou Shu, Western astrology or another system and enter your birth date, time and place. Creating the chart is free. There is also a birth-time rectification entry point for people who don't know their exact time.
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View the calculated chart
The chart produced by the rule engine is displayed. At this stage it contains no AI interpretation.
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Read the AI explanation or report
The AI explains the result on themes such as career, love and marriage, and wealth. The free plan allows one analysis, 10 standard chats and 2 deep chats per day.
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Check compatibility and timing, and ask questions
Compare two people's birth data for compatibility, or check daily tendencies with Today's Fortune and the auspicious-day calendar. Dig into anything you're curious about in the AI chat.
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Save your reports
Paid reports are saved to your account and can be downloaded as PDFs.
Features
01Build charts (free)
Calculated from your birth data with fixed rules.
- BaZi — Day Master, Five Elements, Ten Gods, luck pillars and annual pillars
- Zi Wei Dou Shu — Life and Body Palaces, 12 palaces, the three-sided support, main stars, Four Transformations, decade and annual periods
- Western astrology — Planets, 12 houses and major aspects
- Vedic astrology — Lagna and Moon nakshatra, divisional charts and dashas
- Human Design — Key chart interactions and decision order in plain language
- Sukuyo — Calculates your birth mansion among the 27 mansions and reads its traditional themes
02Interpret with AI
The AI explains the calculated results in writing.
- AI reading reports — Explanations by theme, such as career, love and marriage, and wealth
- Integrated reading — Calculates two or three systems separately and compares them axis by axis
- Compatibility readings — Looks at two people's relationship through BaZi, Zi Wei Dou Shu, Western/Vedic astrology, Sukuyo and more
- AI chat — Ask follow-up questions about your results. AI memory can be turned off in settings
03Divination tools and daily checks
Readings that don't need birth data, plus daily checks.
- Six divination tools — Tarot, Plum Blossom I Ching, Six Lines (Liu Yao), Lenormand, Qimen Dunjia and Guanyin lots. Each shows a free, fixed result first; the detailed AI explanation is optional
- Today's Fortune and auspicious-day calendar — Daily symbolic themes and almanac items, shown separately as calendar data and traditional interpretation
- BZTI archetypes — Personality archetypes based on BaZi, which OpenFate describes as "for reflection, not diagnosis or measurement"
04For developers
Part of the calculation layer is open source.
- OpenFate BaZi MCP server — An MCP server that lets AI tools such as Claude, Cursor, Codex and Cline call BaZi calculations. Published on npm as
@openfate/bazi-mcpunder the MIT license and listed in the MCP Registry
Pricing
Building charts is free. If you use AI explanations and reports heavily, choose a subscription or one-time points. The prices shown in Japanese yen are as follows (as displayed on the official pricing page).
| Plan | Price (JPY display) | What you get |
|---|---|---|
| Free | ¥0 | Chart creation. 1 analysis, 10 standard chats and 2 deep chats per day |
| Pro | ¥4,800/month (regular ¥6,000) / ¥46,080/year | 200 points every day. 5 analyses, 50 standard chats and 10 deep chats per day. Daily career, love and wealth checks, and combined BaZi, Zi Wei Dou Shu and Western astrology analysis |
| Pro Max | ¥8,900/month (regular ¥11,200) / ¥85,440/year | 400 points every day. Same daily limits as Pro |
| 250 points | ¥1,200 (one-time) | No expiry. OpenFate's guideline is about three full reports |
| 500 points | ¥2,100 (one-time) | No expiry |
| 1,000 points | ¥3,300 (one-time) | No expiry |
- Annual billing is 20% cheaper than monthly. The pricing page shows "regular prices" such as ¥6,000 and ¥11,200 struck through as a discount
- In US dollars, Pro is $26.99/month, Pro Max $49.99/month, and points start at $6.99 for 250. The display currency varies by region
- The pricing page does not state whether prices include tax. Check the final amount on the checkout screen
- Subscriptions renew automatically until cancelled, and cancellation takes effect at the end of the paid period. Points and 30-day passes do not renew automatically
- Refund requests must be made within 7 days of purchase or renewal. They cover unused points, duplicate charges, failed access and similar cases; used points, generated reports and subscriptions already in use are generally not refundable
(Based on the official website, pricing page and terms of service as of October 2026)
Things to know before using it
Reviews and reputation
The official website displays many comments from registered users. Many praise how readable the explanations are ("easy to follow even without knowing the jargon," "strengths and weaknesses are color-coded") and the simple interface. However, the comments shown are selected by the site itself, and whether a reading "feels accurate" is a personal impression. OpenFate itself does not guarantee accuracy or outcomes, so it is best enjoyed as a tool for self-reflection or a conversation starter.
Pros and cons
Pros
- Charts are calculated by rules first, not left to AI
- Chart data and interpretation are shown separately, so it's clear which part is AI-written
- Chart creation for six systems and one analysis a day are free
- BaZi, Zi Wei Dou Shu, Western astrology and more in a single account
- One-time points never expire
Cons
- Regular use of detailed AI explanations requires a paid plan from ¥4,800/month or a points purchase
- Results depend on the accuracy of inputs such as birth time
- The pricing page doesn't say whether tax is included
- For users aged 18 and over
How it differs from asking a general chatbot
| Aspect | OpenFate | ChatGPT / Claude (general chat AI) |
|---|---|---|
| Chart calculation | Calculated by a rule engine; the AI doesn't rewrite it | The AI infers it as text, so the calculation can be wrong |
| Supported systems | BaZi, Zi Wei Dou Shu, Western/Vedic astrology, Human Design, Sukuyo, plus six tools such as tarot | Will answer anything asked, but has no divination-specific screens or calculation |
| How results are shown | Chart data, traditional interpretation and AI explanation shown separately | Combined into a single answer |
| Compatibility and timing | Compatibility readings, Today's Fortune, auspicious-day calendar | Must be requested one by one |
| Price | Chart creation and one analysis a day free. Pro from ¥4,800/month | Free plans available; paid plans are monthly |
FAQ
The information on this page is based on what OpenFate published on its official website as of October 2026. Check the official website for the latest specifications and pricing.
