io.github.Alexxanddr/kani-mcp-server

Kani MCP Server

Is the Kani MCP server down? No. It answered initialize and tools/list in the probe of 2026-10-29.

Read-only access to WaniKani progress and study data through MCP.

alive probed 2026-11-15 · unchanged since 2026-10-29

12tools

6.4ktokens in Claude Opus 5.5

3.2 %of Claude's 200k window

2.6×the median server

153 msto initialize

11 msto list tools

Run it: npx -y kani-mcp-server@0.1.4 (stdio, probed in a container with the network off)
Host: npmjs.com
Reports itself as: kani-mcp-server 0.1.0
Capabilities: tools
Instructions: none
Of a 1M window: 0.6 % of a 1M context window
Count: 6.4k tokens in Claude Opus 5.5, exact, measured 2026-10-29. With the Claude Code prefix mcp__…__ on each tool name: 6.6k. The o200k_base estimate is 3.9k. Counted again when the tool definitions change. Method.
Repository: https://github.com/Alexxanddr/kani-mcp-server
Website: https://github.com/Alexxanddr/kani-mcp-server
Registry: active, updated 2026-10-22 · registry entry

Most expensive tools

The Claude column scales the o200k estimate of each tool by this server's ratio of exact to estimate, 1.63×.

Tool	≈ Claude tokens	o200k estimate	Share of this server
list_assignments	1 515	931	24 %
list_review_statistics	709	436	11 %
list_subjects	706	434	11 %
list_spaced_repetition_systems	537	330	8 %
list_study_materials	534	328	8 %

Other registry entries on npmjs.com, the ones next to this name; all of them.

io.github.AlexikM/gibil · alive
Bunpro MCP Server io.github.Alexxanddr/bunpro-mcp-server · alive
Italian Bus and Rail Search MCP Server io.github.Alexxanddr/italian-bus-search · not found
Italian Travel Search MCP Server io.github.Alexxanddr/italian-travel-search · alive
io.github.Algiras/debugium · crashed on start
io.github.Algorismus-io/elementor-ultra-mcp · alive
io.github.Ali1041/leadloadz · needs env
MikroMCP io.github.AliKarami/mikromcp · needs env

Servers that mention kani.

io.github.furkanisikay/ardupilot-mcp · alive
realhands - Real Desktop Computer Use io.github.kanishka089/realhands · install failed
Kanibal Tools io.github.kanibal-studio/kanibal-tools-mcp · alive
HomeLab Monitor io.github.SikamikanikoBG/homelab-monitor · alive
WaniKani io.github.jbeshir/wanikani-mcp · alive
Dukkani — Saudi groceries and grocery cashier io.github.suhaH5/dukkani · alive
com.tamilcalendar/panchangam url/mcp.thirukanitham.com/mcp · needs auth
partsforagents io.github.KanishkVashisht/printrelay · needs auth

The result of the latest probe, the tool count and the token cost. The feed has an entry for every probe that changed them.

Stops answering, comes back, tool set or cost changes. One confirmation mail first, a stop link in every mail.