Calculator MCP Server
by slettmayerio.github.slettmayer/calc-mcp-serverv0.1.9
Exact arithmetic: one calculator tool over an AST allowlist, with integers exact at any size.
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Active5d ago
Install Calculator MCP server
Install in Claude Code
claude mcp add calc-slettmayer -- uvx calc-mcp-serverInstall in Cursor
{
"mcpServers": {
"calc-slettmayer": {
"command": "uvx",
"args": [
"calc-mcp-server"
]
}
}
}Add to ~/.cursor/mcp.json (global) or .cursor/mcp.json (project).
Install in Claude Desktop
{
"mcpServers": {
"calc-slettmayer": {
"command": "uvx",
"args": [
"calc-mcp-server"
]
}
}
}Settings → Developer → Edit Config (claude_desktop_config.json), then restart.
Install in VS Code
{
"servers": {
"calc-slettmayer": {
"type": "stdio",
"command": "uvx",
"args": [
"calc-mcp-server"
]
}
}
}Add to .vscode/mcp.json in your workspace.
Install in Windsurf
{
"mcpServers": {
"calc-slettmayer": {
"command": "uvx",
"args": [
"calc-mcp-server"
]
}
}
}Add to ~/.codeium/windsurf/mcp_config.json.
Freshness
Active — last maintenance signal 5d ago. The newest of the signals below sets the band.
Last commit (default branch)
2026-10-05 · 5d ago · GitHub
Latest release
2026-09-17 · 22d ago · GitHub · v0.1.9
Package published
no data · npm/PyPI
Registry entry updated
2026-09-17 · 22d ago · official registry · v0.1.9
FAQ
›How do I install the Calculator MCP server in Claude Code?
Run: claude mcp add calc-slettmayer -- uvx calc-mcp-server. For Cursor, VS Code, Claude Desktop and Windsurf, use the install tabs above.
›Does Calculator require an API key?
No required environment variables are declared in its published metadata.
›Can I use Calculator as a remote (hosted) MCP server?
No hosted endpoint is published; it runs locally over stdio.
›Is Calculator in the official MCP registry?
Yes, as io.github.slettmayer/calc-mcp-server.