A simple, working example of a Model Context Protocol (MCP) server that lets you play the classic Lemonade Stand game through Claude Desktop.
A simple, working example of a Model Context Protocol (MCP) server that lets you play the classic Lemonade Stand game through Claude Desktop. That is what the 🍋 lemonade stand mcp server brings to an AI assistant: the same capability, reachable through the Model Context Protocol rather than a separate app or dashboard.
Model Context Protocol (MCP) is an open standard that enables AI models like Claude to interact with external data sources and tools. This server demonstrates how MCP works by implementing the classic Lemonade Stand game as a set of tools that Claude can use.
Setup follows the usual MCP pattern — install or clone the server, register it in your client's configuration file, restart the client. The configuration blocks on this page cover the common clients.
The server publishes 6 tools. What each one is for:
start_game — Begin a new game sessionget_game_state — Check current status, money, inventory, and weatherbuy_supplies — Purchase cups, lemons, sugar, and iceset_price — Set the price per cup of lemonadesell_lemonade — Open for business and see daily resultsnext_day — Advance to the next dayThis sits in the developer tooling group, where several servers overlap in what they claim to do but differ sharply once you actually set them up. 🍋 Lemonade Stand's toolset — start_game, get_game_state, buy_supplies and 3 more — is a fair guide to whether it matches your workflow. It is maintained by jimmcq; worth a glance at recent repository activity before you build anything load-bearing on it.
We check each listing at SyncDev against the project's documentation before it goes live — if something here drifts out of date, it is a bug worth reporting.
| Tool | What it does |
|---|---|
| start_game | Begin a new game session |
| get_game_state | Check current status, money, inventory, and weather |
| buy_supplies | Purchase cups, lemons, sugar, and ice |
| set_price | Set the price per cup of lemonade |
| sell_lemonade | Open for business and see daily results |
| next_day | Advance to the next day |
{
"mcpServers": {
"lemonade-stand": {
"command": "node",
"args": [
"/absolute/path/to/Lemonade-Stand-MCP-Server/server.js"
]
}
}
}Configuration as documented by the project. Restart the client after saving.
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