MCP server

I Ching Hexagram MCP Official

rocks.iching/hexagram-mcp

Checked 26 Oct 2026, 08:29 UTC · Connected to it and listed its tools

Public, read-only MCP over the complete 64-hexagram I Ching corpus. Deterministic lookup only.

Website

At a glance

Type

MCP server

Publisher

iching.rocks (verified by the MCP Registry)

Status

Working at last check

Tools

10

Token cost

About 1,975 tokens per request

Sets up in

Claude Code, Claude Desktop, Codex, Gemini CLI, Cursor, VS Code, Antigravity, ChatGPT, OpenAI API, Grok

Last checked

26 Oct 2026, 08:29 UTC

Connect it to your agent

Add to CursorAdd to VS CodeVS Code Insiders

Opens the app, which shows the server and asks you to confirm. For other apps, copy the setup below.

Claude Code

claude mcp add --transport http hexagram-mcp https://mcp.iching.rocks/mcp

Claude Desktop

Settings → Connectors → Add custom connector, and paste the URL.

Codex (config.toml)

[mcp_servers.hexagram-mcp]
url = "https://mcp.iching.rocks/mcp"

Gemini CLI

{"mcpServers":{"hexagram-mcp":{"httpUrl":"https://mcp.iching.rocks/mcp"}}}

Cursor

{"mcpServers":{"hexagram-mcp":{"url":"https://mcp.iching.rocks/mcp"}}}

VS Code

{"servers":{"hexagram-mcp":{"type":"http","url":"https://mcp.iching.rocks/mcp"}}}

Antigravity

agy mcp add hexagram-mcp https://mcp.iching.rocks/mcp

ChatGPT

Settings → Apps & Connectors → Advanced settings: turn on Developer mode, then Create a connector and paste the URL. Which plans can do this varies.

OpenAI API (Responses tools)

{"type":"mcp","server_label":"hexagram-mcp","server_url":"https://mcp.iching.rocks/mcp","require_approval":"always"}

Grok (xAI API tools)

{"type":"mcp","server_label":"hexagram-mcp","server_url":"https://mcp.iching.rocks/mcp"}

Tools

• get_all_hexagrams ~135 tokens
  The full 64-hexagram dataset in one call (bulk; stricter rate limit). Optional order: kingwen (default), mawangdui, eightpalaces, binary. Data © IChing.Rocks — attribution is a condition of the license terms: https://iching.rocks/mcp-terms.
• get_hexagram ~250 tokens
  One hexagram by King Wen number (1-64). Optional include level: summary, core (default), lines, full. Sibling tools cover the other cases: get_hexagrams for several numbers at once, get_all_hexagrams for the entire set, search_hexagrams to find hexagrams by text, and get_reading_context for a changi
• get_hexagrams ~213 tokens
  Batch hexagram lookup by King Wen numbers (max 16 ids per call). Optional include level: summary, core (default), lines, full. Data © IChing.Rocks — attribution is a condition of the license terms: https://iching.rocks/mcp-terms.
• get_reading_context ~302 tokens
  Deterministic reading context for a primary hexagram (1-64) and 0-6 ascending changing lines. Empty changing_lines returns the primary hexagram only; one or more changing lines add the resulting hexagram, the transition, and the changing-line texts. No divination is performed. Data © IChing.Rocks —
• get_server_info ~76 tokens
  Build identity of the running iching.rocks MCP server: name, semantic version, git revision, protocol, and canonical MCP endpoint. Identity only — returns no hexagram data.
• get_trigram ~293 tokens
  One of the eight trigrams by exactly one identifier: binary (e.g. 010), english (e.g. Fire), chinese (pinyin, e.g. Li), symbolic (e.g. Radiance), or element (Chinese character, e.g. 火). This returns a single trigram; list_trigrams returns all eight. Data © IChing.Rocks — attribution is a condition o
• list_hexagrams ~201 tokens
  Compact index of all 64 I Ching hexagrams (id, name, pinyin, characters, essence, trigrams, url). Optional order: kingwen (default), mawangdui, eightpalaces, binary. This is the summary index only; get_hexagram (or get_hexagrams) returns full detail for a known number, get_all_hexagrams returns the
• list_sequences ~90 tokens
  Describes the four canonical hexagram orderings (kingwen, mawangdui, eightpalaces, binary) with their 64-entry sequences. Data © IChing.Rocks — attribution is a condition of the license terms: https://iching.rocks/mcp-terms.
• list_trigrams ~86 tokens
  All eight trigrams with font, binary, pinyin, symbolic name, english name, element character, and function. Data © IChing.Rocks — attribution is a condition of the license terms: https://iching.rocks/mcp-terms.
• search_hexagrams ~329 tokens
  Deterministic literal/keyword search over a closed whitelist of hexagram text fields (not semantic). Case-, diacritic-, and traditional/simplified Chinese-insensitive. Optional fields, order, and limit (default 10, max 64). Texts are an original IChing.Rocks translation; vocabulary from classic Engl

Browse

• Translation

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