# Calculator MCP Server

> Calculator MCP Server — richujames-drug-interaction-checker-mcp. Use this tool when you need to perform basic arithmetic operations, such as addition, subtraction, multiplication, and division, in a lightweight and scalable server environment. It solves problems related to numerical computations and data validation, providing a simple interface for sending mathematical expressions as input and receiving calculated results as output. Ideal for use cases requiring quick and reliable calculation services, such as embedded systems or web applications.

Canonical page: https://skillsregistry.net/skills/richujames-drug-interaction-checker-mcp  
JSON: https://api.skillsregistry.net/v1/skills/richujames-drug-interaction-checker-mcp

## Description

Minimal MCP server for basic calculator operations, built with NitroStack, TypeScript, and Zod validation.

## Trust

- **Trust score (0–1):** 0.68
- **Verification tier:** scanned
- **Last scanned:** 2026-08-30

## Facts

- **Version:** 1.0.0
- **Skill type:** atomic
- **Execution layer:** mcp-remote
- **Runtime environment:** api
- **Category:** other
- **Updated:** 2026-08-30

## Source

- **Source listing:** [Glama](https://glama.ai/mcp/servers/z3gxrjbbbh)
- **Repository:** <https://github.com/richujames/drug_interaction_checker_mcp>

## 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": "richujames-drug-interaction-checker-mcp"
    }
  }
}
```

REST: `GET https://api.skillsregistry.net/v1/skills/richujames-drug-interaction-checker-mcp` · pull for local use: `GET https://api.skillsregistry.net/v1/skills/richujames-drug-interaction-checker-mcp/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