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OpenFate Bazi (Four Pillars)

Makes Claude compute Bazi / Four Pillars charts with OpenFate's deterministic MCP tools instead of guessing pillars, Da Yun, or True Solar Time.

UtilitiesIntermediate★ 156⑂ 22AI score 8/10Last updated: Sep 20, 2026

What it does

  • Routes all Bazi / Four Pillars work — natal chart, Da Yun luck cycles, Ten Gods, True Solar Time, lunar-to-solar conversion, and Earthly Branch interactions — to the OpenFate Bazi MCP server rather than model reasoning.
  • Prompts for the data a precise chart needs: birth date, hour/minute/second, birthplace (ideally longitude and timezone), solar vs lunar calendar, gender for Da Yun direction, and DST status.
  • Gives a clear tool-selection map: calculate_bazi_chart, calculate_true_solar_time, detect_bazi_interactions, reverse_bazi_to_solar_times, plus policy and official-resource lookups.
  • Enforces data honesty: Da Yun onset is exact only with a CALCULATED / DAYUN_SECOND_V2 receipt, raw relationship occurrences are not interpretations, and NOT_EVALUATED must not be read as confirmed transformation.

Who it's for

  • Bazi practitioners and content creators who need reproducible, arithmetically correct charts.
  • Developers building Chinese-metaphysics apps who want a deterministic calculation backend behind an AI agent.
  • Anyone tired of LLMs inventing hour pillars and luck-cycle start ages.

Examples

  1. "Chart a man born 1990-03-05 at 07:30 in Seoul" → the skill collects longitude/timezone details, calls the MCP, and reports whether True Solar Time was applied.
  2. "Why does my hour pillar not match the clock?" → uses calculate_true_solar_time and explains the ZI_HOUR_23 day-boundary rule.
  3. "Does this year's branch clash with my chart?" → calls detect_bazi_interactions with annualBranch / dayunBranch and lists each occurrence by position instead of merging duplicates.

· · · Install guide · · ·

Try it now, no install

Paste this into Claude to use the skill without installing anything.

Read the instructions in this file and follow them to help me:
https://raw.githubusercontent.com/openfate-ai/openfate-mcp/HEAD/skills/openfate-bazi/SKILL.md

What I want: (describe your task here)

If Claude can't open the link, open it yourself and paste the contents instead.

↓ If it works for you, download the ZIP below and install it. Then it runs on its own — no pasting each time.

Install in the Claude app (no terminal)
  1. Download the ZIP with the button below.
  2. In Claude, open Settings → Capabilities and turn on 'Code execution and file creation'. (one time)
  3. Go to Customize → Skills → + → 'Upload a skill' and upload the ZIP.
↓ Download ZIP
Install in Claude Code

Let Claude do it — paste this into Claude Code

Install the skill I found on Claude Skill Mart.
Copy the skills/openfate-bazi folder from the GitHub repo openfate-ai/openfate-mcp into my ~/.claude/skills/openfate-bazi/.
When it's done, tell me in one line what this skill can do.

Install with a command instead

git clone https://github.com/openfate-ai/openfate-mcp.git /tmp/openfate-mcp && mkdir -p ~/.claude/skills && cp -r /tmp/openfate-mcp/skills/openfate-bazi ~/.claude/skills/

⚠ This is a third-party skill. Check the source repository before installing.

  1. Make sure Node.js is installed (node -v).
  2. Clone the repository: git clone https://github.com/openfate-ai/openfate-mcp.git
  3. Copy the skill folder: mkdir -p ~/.claude/skills && cp -r openfate-mcp/skills/openfate-bazi ~/.claude/skills/
  4. Register the MCP server: run claude mcp add openfate-bazi -- npx -y @openfate/bazi-mcp, or add "openfate-bazi": { "command": "npx", "args": ["-y", "@openfate/bazi-mcp"] } to the mcpServers block of your Claude Desktop / Cursor config.
  5. Restart the client and ask for a Bazi chart to confirm both the skill and the MCP tools are active.
View source on GitHub ↗License: MIT