# Calculator

> Use this tool when you need to perform basic arithmetic operations, such as addition, subtraction, multiplication, and division, in a programmatic manner. It solves problems requiring automated calculations and provides a simple interface for inputting mathematical expressions and outputting results. Ideal for developers building AI assistant workflows or learning to create MCP servers, this calculator tool offers a foundational example of core MCP server patterns and practical computational capabilities.

Canonical page: https://skillsregistry.net/skills/kelseyee-calculator  
JSON: https://api.skillsregistry.net/v1/skills/kelseyee-calculator

## Description

Basic MCP calculator server implementation by kelseyee that provides fundamental arithmetic operations through a simple Python-based server using the MCP SDK. The implementation offers essential mathematical functions for addition, subtraction, multiplication, and division, serving as a foundational example for developers learning to build MCP servers or needing basic computational capabilities integrated into their AI assistant workflows. Built with minimal dependencies and straightforward architecture, it demonstrates core MCP server patterns while providing practical utility for applications requiring programmatic access to calculator functions.

## Trust

- **Trust score (0–1):** 0.65
- **Verification tier:** scanned
- **Last scanned:** 2026-09-02

## Facts

- **Version:** 1.0.0
- **Skill type:** atomic
- **Execution layer:** mcp-remote
- **Runtime environment:** api
- **Category:** other
- **Updated:** 2026-09-02

## Source

- **Source listing:** [PulseMCP](https://www.pulsemcp.com/servers/kelseyee-calculator)
- **Repository:** <https://github.com/kelseyee/mcp_calculator>

## Use it

Resolve this record through the SkillsRegistry MCP server (no auth, read-only):

```
claude mcp add --transport http --scope user skillsregistry https://api.skillsregistry.net/mcp
```

```json
{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "tools/call",
  "params": {
    "name": "get_skill",
    "arguments": {
      "slug": "kelseyee-calculator"
    }
  }
}
```

REST: `GET https://api.skillsregistry.net/v1/skills/kelseyee-calculator` · pull for local use: `GET https://api.skillsregistry.net/v1/skills/kelseyee-calculator/pull`

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SkillsRegistry indexes agent skills from public registries and GitHub. Skills we have analysed are scanned with Circle-IR and scored on six dimensions; each listing states its scan coverage. More: https://skillsregistry.net/llms.txt