# Iching Hexagram MCP server

Source: https://glimind.com/server/mcp-registry%2Frocks.iching%2Fhexagram-mcp
Registry id: `mcp-registry/rocks.iching/hexagram-mcp`
Status: live (checked 2026-10-27T07:52:29.059Z)

## Verdict

Iching Hexagram MCP server answered 99.83% of Glimind's liveness checks over 30 days, better than 25% of MCP servers, with 771 ms median handshake and 14 outages in 90 days. Its agent-readiness grade is A (100/100) across 10 tools, costing an agent about 1,921 tokens to load. Checked every few minutes; no tool is ever called.

## Measurements (30 days)

| Metric | Value | Better than |
|---|---|---|
| Uptime, 30 days | 99.83% | 25% of MCP servers |
| Median handshake latency | 771 ms | 28% of MCP servers |
| p95 handshake latency | 3234 ms | — |
| Checks in 30 days | 4,950 | — |
| Outages, 90 days | 14 | — |
| Median recovery | 7 min | — |
| Agent-readiness score | 100/100 (A) | 93% of MCP servers |
| Tools | 10 | — |
| Tool-list size for an agent | ~1,921 tokens | 53% of MCP servers |
| Days observed | 29 | — |

## Install

```json
{
  "mcpServers": {
    "iching-hexagram-mcp-server": {
      "type": "http",
      "url": "https://mcp.iching.rocks/mcp"
    }
  }
}
```

Claude Code:

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

## Tools (10)

- `get_all_hexagrams`: The full 64-hexagram dataset in one call (bulk; stricter rate limit). Optional order: kingwen (default), mawangdui, eightpalaces, binary. Data © IChing.Rocks — 
- `get_hexagram`: 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 sev
- `get_hexagrams`: Batch hexagram lookup by King Wen numbers (max 16 ids per call). Optional include level: summary, core (default), lines, full. Data © IChing.Rocks — attribution
- `get_reading_context`: 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 mor
- `get_server_info`: Build identity of the running iching.rocks MCP server: name, semantic version, git revision, protocol, and canonical MCP endpoint. Identity only — returns no he
- `get_trigram`: 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 (Ch
- `list_hexagrams`: Compact index of all 64 I Ching hexagrams (id, name, pinyin, characters, essence, trigrams, url). Optional order: kingwen (default), mawangdui, eightpalaces, bi
- `list_sequences`: Describes the four canonical hexagram orderings (kingwen, mawangdui, eightpalaces, binary) with their 64-entry sequences. Data © IChing.Rocks — attribution is a
- `list_trigrams`: All eight trigrams with font, binary, pinyin, symbolic name, english name, element character, and function. Data © IChing.Rocks — attribution is a condition of 
- `search_hexagrams`: Deterministic literal/keyword search over a closed whitelist of hexagram text fields (not semantic). Case-, diacritic-, and traditional/simplified Chinese-insen

Measured by Glimind (https://glimind.com): MCP handshake + tool list only, no tool is ever called. CC BY 4.0.