Connect Yarrow and your agent gets 7 tools, among them cast_hexagram, cast_tarot, divine. It answers at https://yarrow-oracle.shaozhengkun.workers.dev/mcp over streamable HTTP, and it listed its tools to an anonymous client, so no sign-in was needed for that. Our probes reached it 6 of 6 times since 11 September 2026; the last check, on 24 October 2026, succeeded.
I-Ching (周易) oracle: cast a hexagram, read classical commentary, get a reflection. Bilingual.
Description as the publisher wrote it.
| Tool | What it does |
|---|---|
cast_hexagram | Cast a hexagram for an I-Ching consultation. Returns the primary hexagram, the six lines (6=old yin, 7=young yang, 8=young yin, 9=old yang from bottom to top), any moving lines, and the changing hexagram if there are moving lines. Pass `see Inputs: question, method, seed |
cast_tarot | Draw one upright Major Arcana card for reflection. Uses a deterministic one-card Waite-Smith Major Arcana method and returns a selected source excerpt from Arthur Edward Waite's public-domain 1910/1922 text. Pass `seed` to reproduce the sam Inputs: question, seed |
divine | Ask the I Ching. See your next step. Cast a hexagram, show the classical sources first, then offer a thoughtful reflection grounded in those sources. Sources first. Reflection, not prediction. The divine name remains stable for oracle/divin Inputs: question, method, locale, device_id, seed |
lookup_hexagram | Return the full classical sources for a hexagram by its number (1–64): judgment (卦辞), image (大象), Tuan commentary, Zhu Xi 周易本义, Yang Tian Cai modern explanation, Yarrow's separately labelled Chinese reading aid, and historical anecdote — wi Inputs: number, locale, compact |
lookup_yilin | Look up the 焦氏易林 verse for a primary hexagram changing into another hexagram. This is a local classical-source lookup, not an AI reading. Inputs: primary_number, changing_number |
tarot_reading | Ask one real question through a single upright Waite-Smith Major Arcana card. Returns a direct calibrated answer first, the named card and bound Arthur Edward Waite 1910 source excerpt, a practical reality check, and one observable next ste Inputs: question, locale, device_id, seed |
two_lenses | Bring one real question to two independent symbolic traditions: a source-first I-Ching cast and one upright Waite-Smith Major Arcana card. Returns a clear calibrated answer first, then five grounded sections covering the I Ching lens, Tarot Inputs: question, method, locale, device_id, iching_seed, tarot_seed |
Every block below points at https://yarrow-oracle.shaozhengkun.workers.dev/mcp. Pick your client and copy.
claude mcp add --transport http yarrow https://yarrow-oracle.shaozhengkun.workers.dev/mcp
{
"mcpServers": {
"yarrow": {
"command": "npx",
"args": ["-y", "mcp-remote", "https://yarrow-oracle.shaozhengkun.workers.dev/mcp"]
}
}
}{
"mcpServers": {
"yarrow": {
"url": "https://yarrow-oracle.shaozhengkun.workers.dev/mcp"
}
}
}{
"servers": {
"yarrow": {
"type": "http",
"url": "https://yarrow-oracle.shaozhengkun.workers.dev/mcp"
}
}
}{
"context_servers": {
"yarrow": {
"url": "https://yarrow-oracle.shaozhengkun.workers.dev/mcp"
}
}
}{
"mcpServers": {
"yarrow": {
"serverUrl": "https://yarrow-oracle.shaozhengkun.workers.dev/mcp"
}
}
}{
"mcpServers": {
"yarrow": {
"url": "https://yarrow-oracle.shaozhengkun.workers.dev/mcp"
}
}
}name: Yarrow
version: 0.0.1
schema: v1
mcpServers:
- name: Yarrow
type: streamable-http
url: https://yarrow-oracle.shaozhengkun.workers.dev/mcp{
"mcpServers": {
"yarrow": {
"httpUrl": "https://yarrow-oracle.shaozhengkun.workers.dev/mcp"
}
}
}{
"mcpServers": {
"yarrow": {
"type": "http",
"url": "https://yarrow-oracle.shaozhengkun.workers.dev/mcp"
}
}
}{
"mcpServers": {
"yarrow": {
"url": "https://yarrow-oracle.shaozhengkun.workers.dev/mcp"
}
}
}goose://extension?url=https%3A%2F%2Fyarrow-oracle.shaozhengkun.workers.dev%2Fmcp&type=streamable_http&id=yarrow&name=Yarrow
It answered our last check on 24 October 2026 in 194 ms. Over 6 checks since 11 September 2026 it answered 6. Status here comes from Neuronto's own probes, not from the publisher.
7, as returned by the server's own tools/list on 21 September 2026: cast_hexagram, cast_tarot, divine, lookup_hexagram, lookup_yilin, tarot_reading, two_lenses.
It answered our last check on 24 October 2026 in 194 ms. Over 6 checks since 11 September 2026 it answered 6.
Put the server under mcpServers in ~/.cursor/mcp.json with the URL https://yarrow-oracle.shaozhengkun.workers.dev/mcp. The exact JSON is above, with the same setup for Claude Code, Claude Desktop, VS Code, Windsurf, Zed, Gemini CLI and the rest.
It listed its tools to an anonymous client, so reading the tool list needs no key. Individual tools can still ask for credentials in their own inputs.
Publisher: io.github.shaozhengkun123. Endpoint host: yarrow-oracle.shaozhengkun.workers.dev. ARD identifier: urn:air:io.github.shaozhengkun123:mcp:yarrow.
First indexed 10 September 2026. The tools are exactly what the server returned; nothing on this page
is inferred from its name. Ranking in Neuronto search is never for sale.