# MCP Calculator

> Use this tool when you need to integrate AI models with external systems for enhanced calculations, email operations, or knowledge retrieval. The MCP Calculator protocol interface enables seamless interaction between AI and external systems, solving problems such as limited model capabilities and lack of access to external data. It accepts input requests from AI models and returns calculated results, emails, or searched knowledge, making it ideal for use cases requiring external system interactions.

Canonical page: https://skillsregistry.net/skills/78-mcp-calculator  
JSON: https://api.skillsregistry.net/v1/skills/78-mcp-calculator

## Description

A protocol interface that extends AI capabilities by enabling models to interact with external systems for calculations, email operations, knowledge search, and more.

## Trust

- **Trust score (0–1):** 0.86
- **Verification tier:** verified
- **Last scanned:** 2026-09-28

## Facts

- **Version:** 1.0.0
- **Skill type:** atomic
- **Execution layer:** mcp-remote
- **Runtime environment:** api
- **Category:** communication
- **Updated:** 2026-09-28

## Source

- **Source listing:** [Glama](https://glama.ai/mcp/servers/qz8v6acrn9)
- **Repository:** <https://github.com/78/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": "78-mcp-calculator"
    }
  }
}
```

REST: `GET https://api.skillsregistry.net/v1/skills/78-mcp-calculator` · pull for local use: `GET https://api.skillsregistry.net/v1/skills/78-mcp-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