# Simple Calculator MCP Server

> Use this tool when you need to perform basic arithmetic operations using natural language inputs, enabling easy calculations for various use cases, such as quick math or educational exercises, with a simple interface that accepts text-based expressions and returns calculated results. It solves problems requiring straightforward mathematical computations, like calculating totals or percentages. Ideal for use in contexts where a straightforward, text-based calculator is needed.

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

## Description

Enables basic arithmetic operations (add, subtract, multiply, divide, modulo) via natural language, with a FastMCP-based server and client for exploring MCP tool calling.

## Trust

- **Trust score (0–1):** 0.69
- **Verification tier:** scanned
- **Last scanned:** 2026-09-01

## Facts

- **Version:** 1.0.0
- **Skill type:** atomic
- **Execution layer:** mcp-remote
- **Runtime environment:** api
- **Category:** other
- **Updated:** 2026-09-01

## Source

- **Source listing:** [Glama](https://glama.ai/mcp/servers/idqu5rda0k)
- **Repository:** <https://github.com/KeerthiNingegowda/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": "keerthiningegowda-mcp-calculator"
    }
  }
}
```

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