Math board runs on your own machine — the client starts it, so there is no endpoint to ping. 414 installs a week from npm. Last commit 30 Oct 2026.
A local, view-only chalkboard the model draws on: equations, plots, molecules and diagrams.
What the code does
We read the source, 2 d ago · rules 995398eba69f
What this server is able to do. For an MCP server this is often the job itself — a terminal server runs commands because that is what it is for. Listed so you know what you are plugging in, not as an accusation.
return statSync(path.join(HERE, f)).mtimeMs;
…1/2$":{0:{action_:"1/2"}},else:{0:{nextState:"1",revisit:!0}},letters:{"*":{action_:"rm"}},"\\ca":{"*":{action_:{type_:"insert",option:"circa"}}},"\\x{}{}|\\x{}|\\x":{"*":{action_:"copy"}},"${(...)}$|$(...)$":{"*":{action_:"tex-math"}},"{(...)}":{"*":{action_:"{text}"}},else2:{"*…
…=F.id();if(M.length>0)for(N.unshift(M);f[_];){var z=f[_];N.unshift(z.edge),N.unshift(z.node),F=z.node,_=F.id()}return o.spawn(N)}}}},ud={kruskal:function(e){e=e||function(b){return 1};for(var t=this.byGroup(),a=t.nodes,n=t.edges,i=a.length,s=new Array(i),o=a,u=function(w){for(var…
Is this your server and something here is wrong? Tell us — corrections are free and do not require a plan.
This code can reach further than it looks
We found places where it runs commands, builds paths or queries from values it is given. None of that is a flaw by itself — it becomes one when the code changes, and code changes quietly between releases. We re-read it on every one.
Connect this server
This server runs on your own machine — install it with the package manager and the client starts it for you. Package name taken from the official registry entry.
claude mcp add math-board -- npx -y pi-math-board{
"mcpServers": {
"math-board": {
"command": "npx",
"args": [
"-y",
"pi-math-board"
]
}
}
}[mcp_servers.math-board]
command = "npx"
args = ["-y", "pi-math-board"]{
"mcpServers": {
"math-board": {
"command": "npx",
"args": [
"-y",
"pi-math-board"
]
}
}
}{
"servers": {
"math-board": {
"type": "stdio",
"command": "npx",
"args": [
"-y",
"pi-math-board"
]
}
}
}Optional settings from the registry entry, left out of the block above:
MATH_BOARD_NO_BROWSER (Set to 1 and board_open only returns the board's URL instead of opening it in the default browser), MATH_BOARD_DATA_DIR (Folder for this board's autosave and named saves, used as given (PI_MATH_BOARD_DATA_DIR, the old name, also works). Default: the mcp/ subfolder of the board's data folder. A plain checkout keeps lessons in <package>/.data; an npm or npx install uses a per-user folder: ~/Library/Application Support/math-board on macOS, $XDG_STATE_HOME/math-board or ~/.local/state/math-board on Linux, %LOCALAPPDATA%\math-board on Windows).
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Math board — questions
Answers built from our own checks of this server.