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8 clients · secrets stay placeholders

JSON (mcpServers)Claude CodeCodexOpenCodeCursorVS CodeGemini CLIGoose

{
  "mcpServers": {
    "yarrow": {
      "type": "http",
      "url": "https://yarrow-oracle.shaozhengkun.workers.dev/mcp"
    }
  }
}

claude mcp add --transport http yarrow https://yarrow-oracle.shaozhengkun.workers.dev/mcp

[mcp_servers.yarrow]
url = "https://yarrow-oracle.shaozhengkun.workers.dev/mcp"

{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "yarrow": {
      "type": "remote",
      "url": "https://yarrow-oracle.shaozhengkun.workers.dev/mcp",
      "enabled": true
    }
  }
}

{
  "mcpServers": {
    "yarrow": {
      "type": "http",
      "url": "https://yarrow-oracle.shaozhengkun.workers.dev/mcp"
    }
  },
  "deeplink": "cursor://anysphere.cursor-deeplink/mcp/install?name=yarrow&config=eyJ0eXBlIjoiaHR0cCIsInVybCI6Imh0dHBzOi8veWFycm93LW9yYWNsZS5zaGFvemhlbmdrdW4ud29ya2Vycy5kZXYvbWNwIn0%3D"
}

{
  "servers": {
    "yarrow": {
      "type": "http",
      "url": "https://yarrow-oracle.shaozhengkun.workers.dev/mcp"
    }
  }
}

{
  "mcpServers": {
    "yarrow": {
      "httpUrl": "https://yarrow-oracle.shaozhengkun.workers.dev/mcp"
    }
  }
}

extensions:
  "yarrow":
    enabled: true
    name: "yarrow"
    type: streamable_http
    uri: "https://yarrow-oracle.shaozhengkun.workers.dev/mcp"
    timeout: 300

Quality 79 / 100good

protocol75 · weight 25

warn
protocol.modernnewest supported version is 2025-03-26; 2026-07-28 not supported, older versions are deprecated until 2027-07-28
n/a
protocol.statelessonly applies to 2026-07-28 servers
pass
protocol.transportstreamable HTTP
n/a
protocol.list_ttlonly applies to 2026-07-28 servers

authorizationn/a · weight 15

n/a
auth.prm, auth.as_metadata, auth.cimdno remote uses OAuth
n/a
auth.secret_in_urlno templated URL

tool hygiene71 · weight 30

pass
tools.descriptionsevery tool has a description
pass
tools.description_lengthdescriptions are concise
pass
tools.schemasevery tool has an object input schema
fail
tools.annotationsno tool declares readOnlyHint or destructiveHint, so clients cannot tell safe calls from risky ones
fail
tools.directory_hintsno tool declares all four of readOnlyHint, destructiveHint, idempotentHint and openWorldHint; missing: lookup_hexagram (readOnlyHint, destructiveHint, idempotentHint, openWorldHint); lookup_yilin (readOnlyHint, destructiveHint, idempotentHint, openWorldHint); cast_hexagram (readOnlyHint, destructiveHint, idempotentHint, openWorldHint); …
pass
tools.token_costabout 1,406 tokens to load every tool
pass
tools.api_dumptools are not a one-to-one API dump

stability100 · weight 15

pass
stability.changesno tool changes in 30 days
pass
stability.rug_pullno tool changed its meaning under the same name

dependenciesn/a · weight 15

n/a
deps.known_vulns, deps.mcp_sdk_version, deps.resolvableno npm or PyPI package

7 tools, about 1,406 tokens to load them all · tool set e2fd3e9d294c · checked 2026-10-20 14:54 UTC

Tool changes

No tool definition changes recorded. A server's first observation is its baseline; later probes record what changes.

Checks run on what our credential-free, read-only probes observe; tools are never called and no code audit is performed. How it is computed.

Trust 87 / 100

provenance80

liveness99

freshness65

hygiene100

+repository +namespace-matches-repo +reachable +uptime-97% ~updated-147d-ago

Derived from observable signals (official registry feed and our own credential-free probes); no code audit performed. How it is computed.

Endpoints

remote	auth	reachable	uptime 30d	p50	protocol	last ok
`https://yarrow-oracle.shaozhengkun.workers.dev/mcp` streamable-http	none	yes	97%	183 ms	2025-03-26	2026-10-20

Tools (7)

`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 `seed` to make the cast deterministic (useful for testing or for reproducing a reading).
`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 same draw.
`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/divination client compatibility. Supports English, Chinese, Japanese, Korean, Spanish, French, German, Portuguese, Italian, Russian, Arabic, Hindi, Indonesian, and English+Chinese bilingual output. Daily quota: 30 completed readings per device_id (or per anonymous IP if no device_id is supplied); timeout, provider failure, incomplete response, and cancellation do not consume it.
`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 — with available Chinese and English source material.
`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.
`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 step. No reversals, astrology, redraw loop, or guaranteed prediction. Daily quota is shared with completed divine and Two Lenses readings.
`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 lens, shared themes, different emphasis, and next step. Direction without guaranteed prediction or mutual-confirmation claims. Daily quota is shared with completed divine readings.

Schemas: list_tools.

Similar MCP servers

Official server.json

{
  "name": "io.github.shaozhengkun123/yarrow",
  "_meta": {},
  "$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
  "remotes": [
    {
      "url": "https://yarrow-oracle.shaozhengkun.workers.dev/mcp",
      "type": "streamable-http"
    }
  ],
  "version": "0.1.0",
  "repository": {
    "url": "https://github.com/shaozhengkun123/yarrow",
    "source": "github"
  },
  "description": "I-Ching (周易) oracle: cast a hexagram, read classical commentary, get a reflection. Bilingual."
}