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Calculator

io.github.slettmayer/calc-mcp-server v0.1.2
Official Registry git
Repository

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

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Install connect locally via stdio

Run in your terminal 
claude mcp add calc-mcp-server -- uvx calc-mcp-server
Add to claude_desktop_config.json 
{
  "mcpServers": {
    "calc-mcp-server": {
      "command": "uvx",
      "args": [
        "calc-mcp-server"
      ]
    }
  }
}
Add to ~/.cursor/mcp.json 
{
  "mcpServers": {
    "calc-mcp-server": {
      "command": "uvx",
      "args": [
        "calc-mcp-server"
      ]
    }
  }
}
Add to ~/.codeium/windsurf/mcp_config.json 
{
  "mcpServers": {
    "calc-mcp-server": {
      "command": "uvx",
      "args": [
        "calc-mcp-server"
      ]
    }
  }
}
Add to .vscode/mcp.json 
{
  "servers": {
    "calc-mcp-server": {
      "type": "stdio",
      "command": "uvx",
      "args": [
        "calc-mcp-server"
      ]
    }
  }
}
Add to cline_mcp_settings.json 
{
  "mcpServers": {
    "calc-mcp-server": {
      "command": "uvx",
      "args": [
        "calc-mcp-server"
      ]
    }
  }
}

Packages

pypi calc-mcp-server@0.1.2

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