MCP server

Calculator Tools MCP Official

tools.calculator/mcp

Checked 26 Oct 2026, 08:29 UTC · Connection failed

Publish a live calculator, tracker, tool, or game from Cursor, Claude, or ChatGPT.

Failed last checkVerified publisher: calculator.tools

https://api.calculator.tools/mcp/

At a glance

Type: MCP server
Publisher: calculator.tools (verified by the MCP Registry)
Status: Failed last check
Sets up in: Claude Code, Claude Desktop, Codex, Gemini CLI, Cursor, VS Code, Antigravity, ChatGPT, OpenAI API, Grok
Last checked: 26 Oct 2026, 08:29 UTC

Opens the app, which shows the server and asks you to confirm. For other apps, copy the setup below.

Claude Code

claude mcp add --transport http calculator https://api.calculator.tools/mcp/

Claude Desktop

Settings → Connectors → Add custom connector, and paste the URL.

Codex (config.toml)

[mcp_servers.calculator]
url = "https://api.calculator.tools/mcp/"

Gemini CLI

{"mcpServers":{"calculator":{"httpUrl":"https://api.calculator.tools/mcp/"}}}

Cursor

{"mcpServers":{"calculator":{"url":"https://api.calculator.tools/mcp/"}}}

VS Code

{"servers":{"calculator":{"type":"http","url":"https://api.calculator.tools/mcp/"}}}

Antigravity

agy mcp add calculator https://api.calculator.tools/mcp/

ChatGPT

Settings → Apps & Connectors → Advanced settings: turn on Developer mode, then Create a connector and paste the URL. Which plans can do this varies.

OpenAI API (Responses tools)

{"type":"mcp","server_label":"calculator","server_url":"https://api.calculator.tools/mcp/","require_approval":"always"}

Grok (xAI API tools)

{"type":"mcp","server_label":"calculator","server_url":"https://api.calculator.tools/mcp/"}

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