I Ching Hexagrams (The Hexagrams) MCP Server

by thehexagrams Your server? Claim it

answering

I Ching Hexagrams (The Hexagrams) is answering right now. Last checked 1 min ago. It exposes 3 tools.

Cast I Ching hexagrams with moving lines; classical + English judgments for all 64.

Uptime history 19 days of history

19 days agonow

100.0%

Uptime 24h

92 of 92 checks

Tools

read from the server

156 ms

Response time

average over 24h

open, no key

Access

streamable-http

Nothing serious here today

Today is the operative word: we check I Ching Hexagrams (The Hexagrams) every 15 minutes and re-read its code on every release. Watch it and you find out the day that stops being true.

Connect this server

Endpoint below is the one we actually reach during checks — not the one copied from a README. Last verified 1 min ago.

Claude Code Claude Desktop Codex Cursor VS Code

run in your terminal

claude mcp add iching --transport http https://thehexagrams.com/mcp

Settings → Connectors → Add custom connector, then paste this address

https://thehexagrams.com/mcp

~/.codex/config.toml

[mcp_servers.iching]
url = "https://thehexagrams.com/mcp"

.cursor/mcp.json

{
  "mcpServers": {
    "iching": {
      "url": "https://thehexagrams.com/mcp"
    }
  }
}

.vscode/mcp.json

{
  "servers": {
    "iching": {
      "type": "http",
      "url": "https://thehexagrams.com/mcp"
    }
  }
}

Available tools 3

Read directly from the server with tools/list, grouped by what they act on. If a tool disappears, we record the date.

cast

cast_hexagram

Cast an I Ching (Yijing) hexagram with the classic three-coin method. Returns the primary hexagram (King Wen number, Chinese name, Unicode symbol), its judgment in classical Chinese with a public-domain English translation, a plain-language meaning, any moving (changing) lines, and the transformed hexagram when lines move. Optionally attach the question you have in mind.

hexagram

get_hexagram

Look up one of the 64 I Ching hexagrams by King Wen number (1-64), Chinese name, pinyin, or Wilhelm English name. Returns trigram composition, judgment (classical Chinese + Legge English translation), all six line texts, a plain-language meaning, and a link to the full page on thehexagrams.com.

hexagrams

list_hexagrams

List all 64 I Ching hexagrams with King Wen numbers, Chinese names, pinyin, Wilhelm English names, and Unicode symbols.

Endpoints

URL	Transport	State	Latency	Checked
https://thehexagrams.com/mcp	streamable-http	answering	119 ms	1 min ago

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I Ching Hexagrams (The Hexagrams) — questions

Answers built from our own checks of this server.

What can I Ching Hexagrams (The Hexagrams) do?

It exposes 3 tools, read directly from the server on our last check. Among them: cast_hexagram, get_hexagram, list_hexagrams. The full list with descriptions is on this page — we take it from the server itself via tools/list, not from a README. How MCP servers expose tools in the first place →

Is I Ching Hexagrams (The Hexagrams) working right now?

We send a real MCP handshake every 15 minutes. Over the last 24 hours 92 of 92 checks got a reply (100.0%), average response time 156 ms. The bar chart above shows every period we have measured.

How do I connect I Ching Hexagrams (The Hexagrams)?

Copy the ready config from this page. We generate it for Claude Code, Claude Desktop, Codex, Cursor and VS Code, each in the form that client actually reads. It is a remote server, so there is nothing to install — the client connects to the address.

Does I Ching Hexagrams (The Hexagrams) need an API key?

No. I Ching Hexagrams (The Hexagrams) completed a full MCP handshake with us as an anonymous client and listed its tools without asking for anything. All 3 of them are readable on this page. This is what we observed, not what the docs claim.

How fast is I Ching Hexagrams (The Hexagrams)?

It answers our handshake in 156 ms on average, which is faster than 82% of all working MCP servers we measure. That puts it in the quick quarter of the ecosystem. The comparison comes from our own checks across the whole registry, every 15 minutes.