Calc MCP

📖 Documentation - Full tool reference, examples, and install guides. It runs locally over stdio via the published package.

People connecting this server to Claude, Cursor, VS Code, or another MCP client. The project is written in TypeScript.

VERIFIED ACTIVE

LAST COMMIT 2026-08-24 · ★ 9 · #100 OF 848 MAINTAINED OTHER · VERIFIED 2026-08-25

MIT · TypeScript servers · how we verify → /methodology

01 · Install Calc MCP

before you install - you'll need

The README does not document required environment variables for a basic install.

Claude Code

claude mcp add coo-quack-calc-mcp -- npx -y @coo-quack/calc-mcp

Claude Desktop / Cursor / VS Code - add to config

{
  "mcpServers": {
    "coo-quack-calc-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "@coo-quack/calc-mcp"
      ]
    }
  }
}

Same JSON for Cursor. For VS Code, rename the top-level key from `mcpServers` to `servers`.

Using another client? Same JSON, different key

Claude Desktop · mcpServers

Cursor · mcpServers

VS Code · servers

Windsurf · mcpServers

Zed · context_servers

Cline · mcpServers

Roo Code · mcpServers

Continue · mcpServers

LibreChat · mcpServers

Gemini CLI · mcpServers

Codex CLI · mcp_servers

Full setup guides: every client.

02 · Evidence

Security posture

What to check before giving this server access to your agent - from the registry, GitHub, and our own probes. We don't score safety; we show what's verifiable.

runs as local process (stdio) - runs on your machine with your user's permissions

license MIT - declared in the repository

npm package @coo-quack/calc-mcp - published under the repo owner's npm scope (@coo-quack)

registry namespace io.github.coo-quack is GitHub-verified and matches the repo owner

03 · What Calc MCP can do

Prose above is summarized from the project's README and registry record - no invented capabilities.

Latest releases

v2.1.0 · 2026-08-18

ip - range now reports totalAddresses, the count of every address in the block, alongside hostCount, which excludes the network and broadcast addresses. info accepts an IPv4 prefix in either ip or cidr and reports the…

v2.0.6 · 2026-08-18

Maintenance · Update Node.js to 24.19.0 in CI and the published Docker image (#176, #173, #184) · Update devDependencies: @biomejs/biome 2.5.8 (#177, #181), vitepress 2.0.0-alpha.19 (#175), docker/login-action v4.6.0…

v2.0.5 · 2026-08-11

Claude Code plugin: drop the --prefix argument from .mcp.json. It pointed at a .npx-prefix directory that nothing ever created, so npx exited with ENOENT and the plugin's MCP server failed to connect (#179) · Drop…

04 · Who maintains Calc MCP

calc-mcp is maintained by coo-quack. It's the only MCP server we track from this author; the repo dates to Feb 2026.

05 · Facts

repository: github.com/coo-quack/calc-mcp
category: other - ranked #100 of 848 actively-maintained other servers as of 2026-08-25.
release cadence: 6 releases in the last 90 days (latest 2026-08-18)
registry: io.github.coo-quack/calc-mcp (active, first published 2026-02-20 · 14 versions)
packages: npm:@coo-quack/calc-mcp

06 · Calc MCP FAQ

What is Calc MCP?

📖 Documentation - Full tool reference, examples, and install guides. It runs locally over stdio via the published package.

Is Calc MCP still maintained?

Yes - as of 2026-08-25, its last commit was 2026-08-24 and it shipped 6 releases in the last 90 days. We re-verify nightly.

How do I install Calc MCP?

Run `npx -y @coo-quack/calc-mcp`. The README does not document required environment variables for a basic install. You can also paste the ready-made client config above.

Does Calc MCP run locally?

Yes - it's a stdio server: it runs on your machine (via npx) with your user's permissions. Your data stays local unless the server itself calls external APIs.

07 · Alternatives to Calc MCP

Alternatives to Calc MCP

Maintained other servers if Calc MCP isn't the fit.

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