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Calculator MCP Server

@wrtnlabs

代码仓库主页

基本信息

分类

其他

许可证

MIT

传输方式

stdio

作者

wrtnlabs

提交者

오병진

关于 Calculator MCP Server

Calculator MCP server on npx

#calculator#node#mcp#npx

Calculator MCP Server 配置

使用下面的配置,将此服务器添加到你的 MCP 客户端。

{
  "mcpServers": {
    "calculator-mcp": {
      "command": "npx",
      "args": [
        "@wrtnlabs/calculator-mcp@latest",
        "--port",
        "8931"
      ]
    }
  }
}

Calculator MCP Server 工具

3

**sub**

**div**

**sqrt**

概览

What is Calculator Mcp?

Calculator Mcp is a Model Context Protocol (MCP) server that provides browser automation capabilities using a basic calculator feature. It enables LLMs to interact with a calculator, and was created as a test program for connecting MCP features.

How to use Calculator Mcp?

Install and run using npx: npx @wrtnlabs/calculator-mcp@latest. Configure in MCP client settings with the command and args, or connect via SSE by specifying a port with --port and setting the client URL to http://localhost:<port>/sse. For VS Code, install via the CLI command code --add-mcp '{"name":"calculator","command":"npx","args":["-y", "@wrtnlabs/calculator-mcp@latest"]}'. Programmatic usage with custom transports is also supported using InMemoryTransport.

Key features of Calculator Mcp

  • Provides arithmetic operations: add, sub, mul, div, mod.
  • Runs as a standard MCP server via npx.
  • Supports SSE transport with configurable port (--port).
  • Works with VS Code and VS Code Insiders CLI.
  • Includes programmatic API for custom transport integration.
  • Lightweight test-oriented implementation for MCP connectivity.

Use cases of Calculator Mcp

  • Testing MCP feature integration in custom applications.
  • Toy projects requiring a simple calculator tool for LLMs.
  • Demonstrating MCP server setup and configuration in VS Code.
  • Experimenting with SSE transport between MCP clients and servers.

常见问题

1

What does Calculator Mcp do?

It is an MCP server that exposes basic calculator operations (add, subtract, multiply, divide, modulo) for LLMs to invoke, intended as a testing or demonstration tool.

2

How do I configure Calculator Mcp in an MCP client?

Add an entry to your `mcpServers` object with command `npx` and args `["-y", "@wrtnlabs/calculator-mcp@latest"]`. For SSE transport, use the `--port` flag and set the client URL to `http://localhost:<port>/sse`.

3

What runtime dependencies does Calculator Mcp have?

It requires Node.js to run via `npx`. No additional installation beyond Node.js is needed.

4

Does Calculator Mcp support authentication?

No authentication mechanism is mentioned in the README.

5

What transport options are available?

Standard stdio transport (via command-line invocation) and SSE transport (by passing `--port <port>`). Programmatic use with custom transports like `InMemoryTransport` is also supported.

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