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Fengshui Calculator MCP server

Which MCP servers are Fengshui Calculator's own, from the official registry and from asking its own domain, whether they answer, and what they offer. A program checked each of these, nobody copied them from a product page.

read 2026-10-28

← Back to Fengshui Calculator

Whose server it is
  • Registry namecom.fengshuicalculator/fengshui-calculatorverified in the MCP registry

The registry name sits under fengshuicalculator.com. The registry only lets a publisher use that namespace after proving control of the domain through DNS or HTTP.

When we asked itchecked 2026-10-28
  • Stateanswerschecked 2026-10-28
  • Tools10
  • Server calls itselffengshuicalculator
  • Server version0.1.0
  • Protocol version2025-06-18

On 2026-10-28 the server answered initialize and tools/list without a sign-in. First answer in 241 ms.

Should an agent connect itConnect it
  • Its tools do every use case we checked: compute a four pillars chart from a birth date; check the almanac and solar terms for a given date.

Once connected

  • For "compute a four pillars chart from a birth date", the likely first call is ganzhi.
  • For "check the almanac and solar terms for a given date", the likely first call is calendar.
  • Parameters are untyped or undescribed in 4 of 11 tools: check arguments before calling.

Said by rules from the measurements above. The likely first call is a model's pick from the tool list; read its description before relying on it.

Measured dailydaily checks: 7, the first on 2026-10-28
  • INITE MCP score95 of 100answers 100 · does the job 100 · definitions 77 · context 100 · connects 100
  • What an agent can do with it2 of 2 use cases
  • Answered100% of days7 of 7 daily checks
  • Median first answer302 ms
  • Space in an agent's context≈ 1,438 tokensthe definitions of all its tools (11), which an agent carries on every turn
  • Tool definitionsB · 77 of 100
  • Typed results0 of 11 toolsdeclared outputSchema: results come typed, read once
  • Parameters without a description: in 4 of 11
  • Not saying whether it only reads or can destroy: 11 of 11

What an agent can do with it

  • can do · compute a four pillars chart from a birth date
  • can do · check the almanac and solar terms for a given date

Each of the product's use cases, put to Jev against this server's tool list: can an agent do it with these tools?

Worth a look

None of the five warning signs in these definitions.

A program checks the server once a day: initialize and tools/list, no model. Tokens are the definitions' length at about four characters a token. The grade averages six checks of every tool's name, description, schema and annotations; it says how well the tools are described, not whether they work. The score weighs what was measured and nothing else: answering (25%), doing the product's job (25%), definitions (20%), context (10%), use (10%) and how readily a client connects (10%). A part that was not measured is left out, and a hidden instruction caps the score at 40. The state of vendors' MCP servers: method and numbers →

Tools it offers10 tools · read 2026-10-28
  • calendar

    Chinese calendar for a date: lunar date (with leap month), zodiac, day officer 建除, yellow/black path, six-day cycle — computed on Beijing time

  • ganzhi

    Four pillars (BaZi) for a date+hour, returned under BOTH year conventions (Lichun vs Lunar New Year) × BOTH day boundaries (midnight vs 23:00) — differences are shown, not hidden

  • solar_terms

    All 24 solar terms of a year with exact Beijing instants (DE441-based), ΔT, and midnight-margin uncertainty flags

  • kua_number

    Ming Gua (Kua number) from birth date + gender, with the Lichun year boundary computed astronomically, five-yellow substitution conventions, and eight favourable/unfavourable directions

  • flying_star_chart

    Xuan Kong flying star natal chart: nine palaces with mountain/facing/period stars plus classical pattern labels (e.g. 旺山旺向). Period from a construction date, or explicit yun

  • yun_period

    San Yuan period (三元九运, 1–9) for a date; periods switch at Lichun, anchored 1984 = start of Period 7

  • rulesets

    List the rule sets the kernel actually implements, with parameters and honest review_state — nothing not implemented is advertised

  • form_analysis

    Indoor form-sha from a floor-plan wireframe: 穿堂煞 (door-window alignment), 缺角 (nine-palace missing corners), 厕占中宫 (toilet at centre) — plus optional fusion with the Eight Mansions house stars and Ming Gua. Grade B verdicts, no aggregate…

  • terrain_white_tiger

    White tiger elevation check (白虎抬头) from a DEM-derived 360-bin skyline: compares the right (white tiger) vs left (azure dragon) sector elevation within ±45° of the sitting direction

  • replay

    Verifiability as an API call: recompute a stored request and compare its SHA-256 input digest (JCS-canonicalised) against an expected value — byte-identical reproduction or honest mismatch

How to connect

Add the server to your MCP client config. Claude Desktop, Cursor and most other clients read this shape:

{
  "mcpServers": {
    "fengshui-calculator": {
      "type": "http",
      "url": "https://fengshuicalculator.com/v1/mcp"
    }
  }
}

Add it

Claude Code, in a terminal

claude mcp add --transport http fengshuicalculator https://fengshuicalculator.com/v1/mcp

Add to CursorAdd to VS Code

claude.ai, ChatGPT and other clients: add https://fengshuicalculator.com/v1/mcp as a custom connector in the settings.

Each line is something a program found when it went looking: the registry entry, the server's own answer, a spec that parses. A missing line means we did not find it, not that it does not exist.