Cal Server
Click on "Install Server".
Wait a few minutes for the server to deploy. Once ready, it will show a "Started" state.
In the chat, type
@followed by the MCP server name and your instructions, e.g., "@Cal Servercalculate the area of a circle with radius 5"
That's it! The server will respond to your query, and you can continue using it as needed.
Here is a step-by-step guide with screenshots.
Cal Server
项目简介
Cal Server 是一个基于 FastMCP 框架构建的简单数学表达式计算服务,使用 Bun 运行时环境。它利用 expr-eval 库解析和计算用户输入的数学表达式,并通过标准输入输出(stdio)与外界交互。该项目旨在提供一个轻量、高效的计算工具,支持基本数学运算和内置常量。
Related MCP server: Math MCP Server
功能
表达式计算:支持用户输入数学表达式并返回计算结果。
内置常量:
E:Bun 环境中的Math.E。PI:Bun 环境中的Math.PI。true:逻辑真值。false:逻辑假值。
工具名称:
cal。参数:接受一个字符串类型的数学表达式(
exp)。
依赖
fastmcp:用于构建 MCP 服务。expr-eval:用于解析和计算数学表达式。zod:用于参数验证。
前置条件
确保已安装 Bun 运行时(推荐最新版本)。
安装
Installing via Smithery
To install cal-mcp for Claude Desktop automatically via Smithery:
npx -y @smithery/cli install @pwh-pwh/cal-mcp --client claudemcp客户端配置
"cal-mcp": {
"name": "计算",
"description": "",
"isActive": true,
"command": "bunx",
"args": [
"cal-mcp"
]
}Manual Installation
克隆项目仓库:
git clone <仓库地址>进入项目目录并安装依赖:
bun install
使用方法
启动服务:
bun run index.ts服务将通过标准输入输出(stdio)运行。
输入数学表达式:
示例输入:
2 + 3 * PI输出:计算结果(字符串形式)。
支持的表达式示例:
基本运算:
2 + 2→4使用常量:
PI * 2→6.283185307179586复杂表达式:
E ^ 2 + 1→8.38905609893065
注意事项
输入的表达式必须是有效的数学表达式,否则可能抛出错误。
服务当前仅支持通过
stdio交互。项目使用 Bun 运行时,确保命令与 Bun 兼容。
Hosted deployment
A hosted deployment is available on Fronteir AI.
Maintenance
Resources
Unclaimed servers have limited discoverability.
Looking for Admin?
If you are the server author, to access and configure the admin panel.
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