Cal Server
pwh-pwh/cal-mcp · 13 stars · TypeScript · MIT
MCP server 用于计算数学表达式的MCP
Install
The repo has no one-line install. Follow its README.
Files
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。
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 claude
mcp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)。
- 示例输入:
-
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
- 基本运算:
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.
Facts
- Kind
- MCP server
- Repo
- pwh-pwh/cal-mcp
- Group
- Uncategorized
- Stars
- 13
- License
- MIT
- Language
- TypeScript
- Last push
- 2026-03-30
- Forks
- 6
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