I Ching Hexagram MCP
REMOTE · MCP.ICHING.ROCKS · SCANNED SEP 21
Public, read-only MCP over the complete 64-hexagram I Ching corpus. Deterministic lookup only.
Available components
How this component scores in each security and reliability category. Every signal is checked automatically against the live server, and we only credit what we can confirm. How we score → Why this is hard to score →
Endpoint Security66
- The endpoint's TLS certificate is valid, in date, and uses a strong key. View diagnostics → Pass
- Authorisation not fully verified: no authorisation is required to call this server, and 10 tool(s) never declared a destructiveHint. The MCP spec treats an absent hint as destructive by default, so we cannot call this surface safe. See how to fix → View diagnostics → Unverified
- HTTPS is enforced; there's no plaintext access path. View diagnostics → Pass
- The HSTS (Strict-Transport-Security) header is present. View diagnostics → Pass
- DNSSEC is configured correctly; the domain's records validate against the full chain to the root. View diagnostics → Pass
Transport & Reachability100
- Verified streamable-http transport via a live MCP handshake. View diagnostics → Pass
Schema Quality & AI Usability88
- 100% of prompts and resources have a non-trivial description (not blank, and not just the item's name).Pass
- AI-judged instruction clarity (excellent).Pass
- Tool/resource definitions use about 5419 tokens (~58/item across 93 items; 10 tools + 83 resources), lean.Pass
- Usage-examples check failed: none of the tools include examples. See how to fix → Fail
Stability & Change Management100
- No destabilizing schema changes in the last 30 days.Pass
Tool Coverage100
- 100% of tools have a non-trivial description (not blank, and not just the tool's name).Pass
- 100% of tool parameters carry a description.Pass
- Structured output schemas are declared (100% of tools); any adoption earns full credit.Pass
Tool Safety100
- No prompt-injection markers were found in the server instructions, tool names or descriptions we captured.Pass
- We read all 10 captured tool definition(s), and no name or description among them implies an irreversible operation.Pass
- An AI judge read all 11 captured unit(s) of tool text and found none that tries to manipulate the model reading it.Pass
Capabilities100
- Implements a supported MCP spec version (2025-11-25); the latest is 2026-07-28.Pass
How do I install the I Ching Hexagram MCP server?
I Ching Hexagram MCP is a hosted endpoint at https://mcp.iching.rocks/mcp, so there is nothing to install locally. Ready-made configuration for Claude, Cursor, VS Code, Codex and 5 more is on this page, copied from each client's own documentation.
remote · mcp.iching.rocks
claude mcp add --transport http rocks-iching-hexagram-mcp 'https://mcp.iching.rocks/mcp'
{
"mcpServers": {
"rocks-iching-hexagram-mcp": {
"url": "https://mcp.iching.rocks/mcp"
}
}
} {
"servers": {
"rocks-iching-hexagram-mcp": {
"type": "http",
"url": "https://mcp.iching.rocks/mcp"
}
}
} [mcp_servers.rocks-iching-hexagram-mcp] url = "https://mcp.iching.rocks/mcp"
{
"$schema": "https://opencode.ai/config.json",
"mcp": {
"rocks-iching-hexagram-mcp": {
"type": "remote",
"url": "https://mcp.iching.rocks/mcp",
"enabled": true
}
}
} openclaw mcp add rocks-iching-hexagram-mcp --url 'https://mcp.iching.rocks/mcp' --transport streamable-http
mcp_servers:
rocks-iching-hexagram-mcp:
url: "https://mcp.iching.rocks/mcp" {
"McpServers": {
"rocks-iching-hexagram-mcp": {
"Transport": "http",
"Url": "https://mcp.iching.rocks/mcp"
}
}
} assistant mcp add rocks-iching-hexagram-mcp -t streamable-http -u 'https://mcp.iching.rocks/mcp'
{
"mcpServers": {
"rocks-iching-hexagram-mcp": {
"type": "http",
"url": "https://mcp.iching.rocks/mcp"
}
}
} The mcpServers block is a cross-client convention. Remote transports vary, so check your client's docs.
Every change we have recorded for this component, newest first. Security-relevant changes are always shown. ▲ marks a change for the better, ▼ a change for the worse; unmarked changes are neutral.
- 26 Aug 26 0
- We updated how we score, so this day's move reflects our rubric, not a change to the server See what changed → functional
- 25 Aug 26 0
- Stability: 0.97 → pass security
- 24 Aug 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 93 to 97. That category is still filling its 30-day observation window: 28 days of observed history at the previous scan, 29 at this one. The score rises as the window fills, whether or not the server changes.
- 11 Aug 26 0
- We updated how we score, so this day's move reflects our rubric, not a change to the server See what changed → functional
- 31 Jul 26 0
- We updated how we score, so this day's move reflects our rubric, not a change to the server See what changed → functional
- 30 Jul 26 0
- We updated how we score, so this day's move reflects our rubric, not a change to the server See what changed → functional
- 27 Jul 26 0
- We updated how we score, so this day's move reflects our rubric, not a change to the server See what changed → functional
- 26 Jul 26 0
First indexed and scored.
Diagnostic detail from the automated scan of this channel: what the scanner observed at each step, so you can see exactly where a check passed or failed. It is informational only and never changes the trust score.
Captured 21 Sept 2026 · Probed https://mcp.iching.rocks/mcp
TLS valid
Negotiated TLS 1.3 with TLS_AES_128_GCM_SHA256 .
| Subject | Issuer | Valid from | Valid until | Key | Signature | Serial |
|---|---|---|---|---|---|---|
| CN=iching.rocks | CN=WE1,O=Google Trust Services,C=US | 20 Sept 2026 | 19 Dec 2026 | ECDSA 256 | ECDSA-SHA256 | 792e25d3bf0a716a139cb6bad70c1ea8 |
| SANs: iching.rocks, *.iching.rocks | ||||||
| CN=WE1,O=Google Trust Services,C=US (CA) | CN=GTS Root R4,O=Google Trust Services LLC,C=US | 13 Dec 2023 | 20 Feb 2029 | ECDSA 256 | ECDSA-SHA384 | 7ff31977972c224a76155d13b6d685e3 |
| CN=GTS Root R4,O=Google Trust Services LLC,C=US (CA) | CN=GlobalSign Root CA,OU=Root CA,O=GlobalSign nv-sa,C=BE | 15 Nov 2023 | 28 Jan 2028 | ECDSA 384 | SHA256-RSA | 7fe530bf331343bedd821610493d8a1b |
Background: What to check on a remote MCP endpoint →
DNSSEC secure
Validation of mcp.iching.rocks. — Secure
| Zone | DS | Keys | Algorithms | Outcome |
|---|---|---|---|---|
| . | trust_anchor | 20326, 38696 | 8, 8 | Verified |
| rocks. | present | 55882 | 8 | Verified |
| iching.rocks. | present | 2371 | 13 | Verified |
| mcp.iching.rocks. | Verified address RRset verified with the apex keys |
Authentication No authorisation required
The endpoint answered without asking for a token. Anyone who knows the URL can reach it.
| Result | No authorisation required |
|---|---|
| HTTP status | 200 |
| Header | Value |
|---|---|
| strict-transport-security | max-age=63072000; includeSubDomains |
| content-security-policy | default-src 'none'; frame-ancestors 'none' |
| x-content-type-options | nosniff |
| x-frame-options | SAMEORIGIN |
| referrer-policy | strict-origin-when-cross-origin |
| permissions-policy | camera=(), microphone=(), geolocation=(), payment=() |
Background: How OAuth 2.1 works in the 2026 MCP spec →
Transports 2 probes
| Transport | URL | Outcome | Status | Location |
|---|---|---|---|---|
| streamable-http | https://mcp.iching.rocks/mcp | Verified | 200 | |
| http (plaintext) | http://mcp.iching.rocks/mcp | HTTPS enforced |
The tools this component advertises to a client, with an estimated token cost for each. Expand a tool to see its parameters and schema. The per-tool counts are indicative and are not scored directly; the schema's total context footprint is one signal in Schema Quality & AI Usability. A tool's description is untrusted text the model reads on every call, which is what makes this list a security surface and not just an inventory: how tool poisoning works →
get_all_hexagrams Get All Hexagrams ~103
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.
| Name | Type | Req | Description |
|---|---|---|---|
| order | string|null | – | Ordering: kingwen | mawangdui | eightpalaces | binary. Default kingwen. |
| Name | Type | Req | Description |
|---|---|---|---|
| count | integer | – | – |
| hexagrams | array | – | – |
| order | string | – | – |
| source | object | – | – |
No examples provided.
get_hexagram Get Hexagram ~181
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.
| Name | Type | Req | Description |
|---|---|---|---|
| id | integer | yes | Hexagram number, 1-64 (King Wen). |
| include | string|null | – | Detail level, each nesting the previous: summary = identity, essence, url; core (default) = adds trigrams, judgment, image; lines = adds the six line texts; full = adds symbolic meaning and final com… |
| Name | Type | Req | Description |
|---|---|---|---|
| binary | string | – | – |
| essence | string | – | – |
| final_comment | object|null | – | – |
| hex_font | string | – | – |
| id | integer | – | – |
| image | object|null | – | – |
| judgment | object|null | – | – |
| lines | array|null | – | – |
| name | string | – | – |
| pinyin | string | – | – |
| source | object | – | – |
| symbolic_meaning | string|null | – | – |
| trad_chinese | string | – | – |
| trigram_above | object|null | – | – |
| trigram_below | object|null | – | – |
| url | string | – | – |
No examples provided.
get_hexagrams Get Hexagrams (Batch) ~147
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.
| Name | Type | Req | Description |
|---|---|---|---|
| ids | array | yes | Hexagram numbers, 1-64 (King Wen), no duplicates, max 16 per call. |
| include | string|null | – | Detail level, each nesting the previous: summary = identity, essence, url; core (default) = adds trigrams, judgment, image; lines = adds the six line texts; full = adds symbolic meaning and final com… |
| Name | Type | Req | Description |
|---|---|---|---|
| count | integer | – | – |
| hexagrams | array | – | – |
| source | object | – | – |
No examples provided.
get_reading_context Get Reading Context ~199
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.
| Name | Type | Req | Description |
|---|---|---|---|
| changing_lines | array | yes | Changing line numbers (1-6), strictly ascending, no duplicates. Empty for an unchanging reading. |
| include | string|null | – | Detail level, each nesting the previous: summary = identity, essence, url; core (default) = adds trigrams, judgment, image; lines = adds the six line texts; full = adds symbolic meaning and final com… |
| primary_id | integer | yes | Primary hexagram number, 1-64 (King Wen). |
| Name | Type | Req | Description |
|---|---|---|---|
| changing_line_texts | array|null | – | – |
| final_comment | object|null | – | – |
| primary | object | – | – |
| resulting | object|null | – | – |
| source | object | – | – |
| transition | object|null | – | – |
No examples provided.
get_server_info Get Server Info ~45
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.
Input schema present but exposes no named parameters.
| Name | Type | Req | Description |
|---|---|---|---|
| git_revision | string | – | – |
| mcp_endpoint | string | – | – |
| name | string | – | – |
| protocol | string | – | – |
| version | string | – | – |
No examples provided.
get_trigram Get Trigram ~207
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.
| Name | Type | Req | Description |
|---|---|---|---|
| binary | string|null | – | Three-bit trigram binary, e.g. 010 (canonical identifier). |
| chinese | string|null | – | Pinyin romanization, e.g. Li. (This field holds pinyin; the Chinese character lives in element.) |
| element | string|null | – | Chinese element character, e.g. 火. |
| english | string|null | – | English name, e.g. Fire. |
| symbolic | string|null | – | Symbolic name, e.g. Radiance. |
| Name | Type | Req | Description |
|---|---|---|---|
| binary | string | – | – |
| chinese | string | – | – |
| element | string | – | – |
| english | string | – | – |
| font | string | – | – |
| function | string|null | – | – |
| source | object|null | – | – |
| symbolic | string | – | – |
No examples provided.
list_hexagrams List Hexagrams ~157
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.
| Name | Type | Req | Description |
|---|---|---|---|
| order | string|null | – | Ordering: kingwen | mawangdui | eightpalaces | binary. Default kingwen. |
| Name | Type | Req | Description |
|---|---|---|---|
| count | integer | – | – |
| hexagrams | array | – | – |
| order | string | – | – |
| source | object | – | – |
No examples provided.
list_sequences List Sequences ~67
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.
Input schema present but exposes no named parameters.
| Name | Type | Req | Description |
|---|---|---|---|
| sequences | array | – | – |
| source | object | – | – |
No examples provided.
list_trigrams List Trigrams ~61
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.
Input schema present but exposes no named parameters.
| Name | Type | Req | Description |
|---|---|---|---|
| count | integer | – | – |
| source | object | – | – |
| trigrams | array | – | – |
No examples provided.
search_hexagrams Search Hexagrams ~221
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.
| Name | Type | Req | Description |
|---|---|---|---|
| fields | array|null | – | Whitelisted field paths to search; defaults to the documented default set. |
| limit | integer|null | – | Max results, 1-64. Default 10. |
| order | string|null | – | Ordering: kingwen | mawangdui | eightpalaces | binary. Default kingwen. |
| query | string | yes | Literal text to match (max 200 chars). Case-, diacritic-, and traditional/simplified Chinese-insensitive. |
| Name | Type | Req | Description |
|---|---|---|---|
| fields | array | – | – |
| limit | integer | – | – |
| note | string|null | – | – |
| order | string | – | – |
| query | string | – | – |
| results | array | – | – |
| source | object | – | – |
| total_matches | integer | – | – |
No examples provided.
What is the I Ching Hexagram MCP server?
I Ching Hexagram MCP is listed in the public MCP registry as rocks.iching/hexagram-mcp. Public, read-only MCP over the complete 64-hexagram I Ching corpus. Deterministic lookup only. This page covers its hosted endpoint (https://mcp.iching.rocks/mcp).
Is the I Ching Hexagram MCP server safe to use?
I Ching Hexagram MCP scores 84 out of 100 on VerifyMCP. That is a record of what we were able to check automatically, not an endorsement. The category breakdown on this page shows every signal behind the number, including the ones we could not confirm.
What tools does the I Ching Hexagram MCP server expose?
I Ching Hexagram MCP exposes 10 tools: search_hexagrams, get_hexagrams, list_hexagrams, get_server_info, get_reading_context, and 5 more. Their descriptions and schemas cost roughly 1,388 tokens of context every time the server is loaded.
Does the I Ching Hexagram MCP server require authentication?
No. We connected to I Ching Hexagram MCP without credentials and it answered, so anything it exposes is reachable by anyone who knows the address.
Is the I Ching Hexagram MCP server still maintained?
I Ching Hexagram MCP is still listed as active in the MCP registry. We last reached this channel on 21 September 2026. Those dates come from our own scans of the registry and the channel itself, not from anything the publisher announced.