How do I install Calc?

Copy the stdio config for Cursor, Claude Desktop, Claude Code, or VS Code on this page. It uses the publisher's install, not a PlugMCP proxy.

Does Calc need an API key?

No required environment variable is listed on this record.

When was Calc last checked?

Last checked 2026-11-09. 21 MCP tools for math, randomness, dates, encoding, hashing, and more — deterministic and accurate.

Calc MCP server

Power your agent

Add this server

The publisher's own command. Not a PlugMCP endpoint.

Add to Cursor Add to VS Code Run on PlugMCP

Host a copy with our keys and logs.

Local command

npx -y @coo-quack/[email protected]

Claude Code has no install link for a local command. Copy the command below and run it in a terminal.

shClaude Code

1claude mcp add io.github.coo-quack-calc-mcp -- npx -y @coo-quack/calc-mcp@2.1.5

Run in a terminal.

jsonClaude Desktop

1{2  "mcpServers": {3    "io.github.coo-quack-calc-mcp": {4      "command": "npx",5      "args": [6        "-y",7        "@coo-quack/[email protected]"8      ]9    }10  }11}

claude_desktop_config.json

Local · npmPublisher installStep-by-step: add this in Claude

Remote URL or a command on your machine? How the two installs differ

Run on PlugMCP

Host a copy with our keys and logs.

A new server you create. It is not this listing's official endpoint. Use the publisher install when you want their URL and their credentials.

Launch

Server facts

Local

Transport: stdio
Version: 2.1.5
License

Tools

No tool list yet. Remote servers get one after the first health check.

FAQ

Calc

Add this server

Host a copy with our keys and logs.

Server facts

Tools

Questions

How do I install Calc?

Does Calc need an API key?

What transport does Calc use?

When was Calc last checked?

Documentation