# MCP Playground

> Use this tool when you need to demonstrate or test MCP server functionality, such as querying employee data, sending emails, or proposing project teams based on skills. It provides access to a SQLite database and tools like Mailtrap for email testing, making it ideal for development, testing, or training scenarios. The MCP Playground accepts query inputs and returns employee profiles, emails, or proposed team compositions as outputs.

Canonical page: https://skillsregistry.net/skills/jaanlavaerts-mcp-playground  
JSON: https://api.skillsregistry.net/v1/skills/jaanlavaerts-mcp-playground

## Description

A demonstration MCP server that provides access to a SQLite employee database with tools for querying users and profiles, sending emails via Mailtrap, and proposing project teams based on employee skills.

## Trust

- **Trust score (0–1):** 0.94
- **Verification tier:** verified
- **Last scanned:** 2026-09-28

## Facts

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

## Source

- **Source listing:** [Glama](https://glama.ai/mcp/servers/dm54s5vg30)
- **Repository:** <https://github.com/JaanLavaerts/mcp_playground>

## 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": "jaanlavaerts-mcp-playground"
    }
  }
}
```

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