Nyan Parlor: Tarot, I Ching & BaZi
io.github.nyan-parlor/nyan-parlor-mcpnyan-parlorstreamable-httpv0.2.0Scanned
Real random tarot draws, card meanings, I Ching casting, BaZi charts and Chinese zodiac (EN/JA).
6 tools: 3 change things and 3 only read.
- Reads private data · 0
- Reads text others write · 0
- Can send data out · 0
- No findings
Anlyon alternative
3 of these tools change something. Run those as governed actions.
Declare what an action changes, and Anlyon puts it under a shared limit, binds every approval to the exact request, and grades the outcome. It works on any HTTPS API you can describe as an action.
Anlyon does not run, proxy or govern this MCP server. A tool your own code calls directly is not routed through Anlyon and is not governed by it.
Import an OpenAPI spec →Tools
Grouped by what each tool does, most consequential first. Open one for its reasons and full description; descriptions are the publisher's own words.
6 tools
Changes things 3Claude Code: ask
bazi_chartCalculate a BaZi / Four Pillars of Destiny chart from a birth date, optional birth time and the birthplace time zone.No findings
Why it is in this group
- Nothing in its name or description says what it does, so it is counted as a write.
Description, as the server wrote it Calculate a BaZi / Four Pillars of Destiny chart from a birth date, optional birth time and the birthplace time zone. Uses solar-term boundaries (the year changes at the Start of Spring, Li Chun) via an astronomical calendar engine. Returns the four pillars with Ten Gods, the Day Master, five-element balance, luck pillars and the coming years.
cast_i_chingCast an I Ching reading with the traditional three-coin method (six tosses, bottom line first).No findings
Why it is in this group
- Nothing in its name or description says what it does, so it is counted as a write.
Description, as the server wrote it Cast an I Ching reading with the traditional three-coin method (six tosses, bottom line first). Returns the primary hexagram, any changing lines and the relating (transformed) hexagram, with links to each hexagram's meaning. Use this instead of making up a hexagram.
draw_tarot_cardsDraw tarot cards at random from a full 78-card Rider–Waite–Smith deck (cryptographically random, no repeats).No findings
Why it is in this group
- Nothing in its name or description says what it does, so it is counted as a write.
Description, as the server wrote it Draw tarot cards at random from a full 78-card Rider–Waite–Smith deck (cryptographically random, no repeats). Returns each card with its position, upright/reversed orientation, keywords and a link to its full meaning. Use this instead of inventing cards when a user asks for a tarot reading.
Only reads 3Show 3 read-only tools
chinese_zodiacFind a person's Chinese zodiac animal from a birth year or date (handles the Lunar New Year and Start of Spring boundaries for January–February births) and return the 2027 Year of …No findings
Why it is in this group
- The description's first verb is "find": a word for reading.
Description, as the server wrote it Find a person's Chinese zodiac animal from a birth year or date (handles the Lunar New Year and Start of Spring boundaries for January–February births) and return the 2027 Year of the Fire Goat forecast for that sign: love, career, money and a tip.
get_hexagramLook up one of the 64 I Ching hexagrams by number (1–64), English name ("The Wanderer"), Chinese character (旅), Japanese name (火山旅) or pinyin (ambiguous pinyin like "lu" returns th…No findings
Why it is in this group
- The name "get_hexagram" says "get": a word for reading.
Description, as the server wrote it Look up one of the 64 I Ching hexagrams by number (1–64), English name ("The Wanderer"), Chinese character (旅), Japanese name (火山旅) or pinyin (ambiguous pinyin like "lu" returns the candidates). Returns its essence, judgment, image, love and career readings, guidance and the six line texts.
get_tarot_card_meaningLook up the meaning of a tarot card: keywords, upright and reversed meaning, love, feelings, career and money readings, and whether it leans yes or no.No findings
Why it is in this group
- The name "get_tarot_card_meaning" says "get": a word for reading.
Description, as the server wrote it Look up the meaning of a tarot card: keywords, upright and reversed meaning, love, feelings, career and money readings, and whether it leans yes or no. Accepts names like "The Tower", "3 of Cups", "Queen of Swords" or "ace of coins".
This is not a safety rating, and no finding is not a safety guarantee. The groups and findings come from fixed checks of the tool definitions the server returned on the date shown, not from its code or what it does when called. How the checks work.
Exfil surface
Which tools read private data, which read text someone else can write, and which can send data out. One of each is a path a prompt injection can use.
No private-data, untrusted-input, outbound path in this server alone: no tool is tagged private-data or untrusted-input or outbound.
- Reads private data0
- Reads files, mail, messages, databases, secrets, calendars or repositories.
- Reads text others write0
- Brings in text someone else can write: web pages, inbound email, messages, issues and comments.
- Can send data out0
- Can carry data to people or systems: it sends, posts or publishes, or takes a recipient, channel or URL.
Other servers in the same agent add their own tools to these paths. Audit your whole setup to see them together.
Findings
Matches of fixed checks, with the text they matched.
No check matched anything in these tool definitions. That is not a safety guarantee.
History
Changes to its tool definitions and to its remote endpoint, newest first.
No change seen yet. Its tools are rescanned every day, and a remote endpoint is looked at once a week.
Install
Pinned to version 0.2.0. Values in angle brackets are yours to fill in.
claude mcp add --transport http nyan-parlor https://www.tarotoper.com/mcpclaude mcp add --transport http nyan-parlor https://www.tarotoper.com/mcpRun in a terminal.
Claude Code permissions
Allow the reads, ask before a change or a way out, deny the deletes. Paste into .claude/settings.json.
{
"permissions": {
"allow": [
"mcp__nyan-parlor__get_tarot_card_meaning",
"mcp__nyan-parlor__get_hexagram",
"mcp__nyan-parlor__chinese_zodiac"
],
"ask": [
"mcp__nyan-parlor__draw_tarot_cards",
"mcp__nyan-parlor__cast_i_ching",
"mcp__nyan-parlor__bazi_chart"
],
"deny": []
}
}Tools that only read are allowed, tools that change things ask first, tools that delete or cancel are denied. A read that can send data out (it takes a URL, say) asks first too. It assumes the server is installed as nyan-parlor. Review it before you use it.
Pin
Keep the decision: fail CI when the tools change, follow every change, or show a badge.
Pin in CI
Fail a build when the tools you reviewed are not the tools the server serves today.
curl -s "https://anlyon.dev/api/v1/servers/io.github.nyan-parlor/nyan-parlor-mcp/verify?hash=d4fc14c2adc35ac341e3ed2489ee8a9bfaafe09f40d1aaea24f20218a4f53fe0" | jq -e '.changed == false'Pinned hash d4fc14c2adc3, from Oct 23, 2026, 16:25 UTC.
Watch
Get told when its tools change: a new tool, a new description, a new class.
https://anlyon.dev/servers/io.github.nyan-parlor/nyan-parlor-mcp/changes.xmlAn Atom feed. Works in any feed reader or Slack's RSS app.
Badge
[](https://anlyon.dev/servers/io.github.nyan-parlor/nyan-parlor-mcp)Source: MCP Registry · repository. Synced Oct 23, 2026, 17:17 UTC.