# I Ching Rocks

> Explore ancient wisdom in a modern context — ask questions with the Oracle, study classic hexagrams and guidance, explore learning resources, and dive into the companion blog.

## Oracle
- [I Ching Oracle](https://iching.rocks/oracle) – Cast your hexagram and receive an interpretation.

## Hexagrams
- [Hexagrams](https://iching.rocks/hexagrams) – Browse all 64 hexagrams.
- [Lookup](https://iching.rocks/oracle-lookup) – Find specific hexagrams by number or name.

## Learning
- [Learn](https://iching.rocks/learn) – Guides on the I Ching tradition.
- [Exclusive](https://iching.rocks/exclusive-interpretation-samples) – Paid exclusive reading analysis content.
- [FAQ](https://iching.rocks/faq) – Answers to common questions.

## Blog
- [Blog](https://iching.rocks/blog) – Articles exploring philosophy, modern interpretations, and methodology.

## Contribute
- [Contribute](https://iching.rocks/contribute) – Discover how to support or enhance the project.

## MCP Server
- [I Ching MCP Server](https://mcp.iching.rocks/mcp) – Public read-only Model Context Protocol (MCP) endpoint over the complete hexagram dataset (Streamable HTTP JSON-RPC). Deterministic lookup only; no divination is performed.
- [MCP Connection Guide](https://iching.rocks/mcp) – How to connect AI assistants to the IChing.Rocks MCP server.
- [MCP Terms of Use](https://iching.rocks/mcp-terms) – Citation and quotation with attribution are permitted; bulk reproduction, redistribution, or dataset-scale reuse requires a separate agreement.

### MCP Tools
- `list_hexagrams` – 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 full dataset in one call, and search_hexagrams finds hexagrams by text. Data © IChing.Rocks — attribution is a condition of the license terms: https://iching.rocks/mcp-terms.
- `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 several numbers at once, get_all_hexagrams for the entire set, search_hexagrams to find hexagrams by text, and get_reading_context for a changing-line reading. Data © IChing.Rocks — attribution is a condition of the license terms: https://iching.rocks/mcp-terms.
- `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 is a condition of the license terms: https://iching.rocks/mcp-terms.
- `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 (Chinese character, e.g. 火). This returns a single trigram; list_trigrams returns all eight. Data © IChing.Rocks — attribution is a condition of the license terms: https://iching.rocks/mcp-terms.
- `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 the license terms: https://iching.rocks/mcp-terms.
- `list_sequences` – 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.
- `search_hexagrams` – 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 English translations (Wilhelm/Baynes, Legge, Blofeld) may not match literally. Data © IChing.Rocks — attribution is a condition of the license terms: https://iching.rocks/mcp-terms.
- `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 more changing lines add the resulting hexagram, the transition, and the changing-line texts. No divination is performed. Data © IChing.Rocks — attribution is a condition of the license terms: https://iching.rocks/mcp-terms.
- `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 — attribution is a condition of the license terms: https://iching.rocks/mcp-terms.
- `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 hexagram data.