Zhouyi

Access ancient wisdom and divination insights from the Book of Changes.

CommunityOnlineNo sign-inGlobalFreeRead-only

What it can do

  • Lookup Hexagram: Query I Ching hexagram data. Omit id to get a list of all 64 hexagrams with name, pinyin, and palace. Pass id (1-64) to get full hexagram details including guaci, general commentary,
  • Lookup Star: Query Zi Wei Dou Shu (Purple Star Astrology) star data. Omit name to get a list of all 53 stars with name, filename, and category. Pass filename (e.g. ZiWei, TianJi, TaiYang) to get full
  • Lookup Classic: Query Zi Wei Dou Shu classical texts. Omit id to get a list of all 23 classics with title. Pass id (0-22) to get the full text of a specific classic including sections. Classics includ

What data it sees

Do you need an account

No: the server works without sign-in

Access ancient wisdom and divination insights from the Book of Changes. Perform hexagram readings to navigate complex life situations and decision-making processes. Receive philosophical interpretations that offer unique perspectives on change and balance.

How to connect

How to connect Zhouyi to Claude

The server address to paste into Claude settings:

https://zhouyi.run.tools

  1. Open Claude (claude.ai or the desktop app).
  2. Go to Settings → Connectors.
  3. Click Add custom connector.
  4. Paste the server address copied below into Remote MCP server URL and click Add.
  5. In a chat, click + → Connectors and switch the new connector on.

Custom connectors are available on Free, Pro, Max, Team and Enterprise plans (Free is limited to one). On Team and Enterprise an organization Owner adds the connector first under Organization settings → Connectors.

Authorization

After you click Add, a sign-in window for the service opens. Sign in with your own account and approve access. Claude never sees your password.

How to connect Zhouyi to ChatGPT

The server address to paste into ChatGPT settings:

https://zhouyi.run.tools

  1. Open ChatGPT in a browser (chatgpt.com). A Plus, Pro, Business, Enterprise or Edu plan is required.
  2. Turn on developer mode once: Settings → Apps → Advanced settings → Developer mode.
  3. Open Settings → Connectors and click Create.
  4. Fill in the form: Name (anything), Description (one line about what the service does), MCP server URL (copy it below).
  5. Under Authentication choose OAuth if the service requires sign-in, otherwise None. Click Create.
  6. In a new chat open + → Apps/Connectors and enable the connector.

OpenAI has renamed this section before (Connectors → Apps/Plugins). If the label differs, search settings for "developer mode". On Business/Enterprise workspaces an admin must allow custom connectors first.

Authorization

On first use ChatGPT opens the service's sign-in window. Sign in and approve access.

How to connect Zhouyi to Cursor

The server address to paste into Cursor settings:

https://zhouyi.run.tools

Fastest: click Open in Cursor below and confirm the prompt.

Manually:

  1. In Cursor open Settings → Cursor Settings → MCP and click Add new global MCP server.
  2. Paste the JSON copied below into ~/.cursor/mcp.json (per project: .cursor/mcp.json in the repo root).
  3. Save the file. The server appears in the MCP list; authorize it there if asked.

Authorization

If the service needs sign-in, an authorize button appears next to the server in the MCP list.

Server tool list (3)

Raw names from tools/list. Only developers need these.

lookup_hexagramQuery I Ching hexagram data. Omit id to get a list of all 64 hexagrams with name, pinyin, and palace. Pass id (1-64) to get full hexagram details including guaci, general commentary, Takashima divination, and all six lines with classical and modern interpretations.
lookup_starQuery Zi Wei Dou Shu (Purple Star Astrology) star data. Omit name to get a list of all 53 stars with name, filename, and category. Pass filename (e.g. ZiWei, TianJi, TaiYang) to get full star details including classical references, overview, and interpretations across all 12 palaces.
lookup_classicQuery Zi Wei Dou Shu classical texts. Omit id to get a list of all 23 classics with title. Pass id (0-22) to get the full text of a specific classic including sections. Classics include Tai Wei Fu, Xing Xing Fu, and other foundational treatises.