Calculator for Windsurf

io.github.slettmayer/calc-mcp-server

Exact arithmetic: one calculator tool over an AST allowlist, with integers exact at any size.

client:Windsurf transport:stdio runtime:pypi

Install Calculator in Windsurf

~/.codeium/windsurf/mcp_config.json · windows: %USERPROFILE%\.codeium\windsurf\mcp_config.json

{
  "mcpServers": {
    "calc-mcp-server": {
      "command": "uvx",
      "args": [
        "calc-mcp-server"
      ]
    }
  }
}

Global only — Windsurf has no per-project MCP config. Refresh Cascade after saving. Windsurf docs