Build an MCP App changedextensions/apps/build
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55## Prerequisites
66
77You'll need [Node.js](https://nodejs.org/en/download) 18 or higher. Familiarity
8with [MCP tools](/specification/latest/server/tools.md) and
9[resources](/specification/latest/server/resources.md) is recommended since MCP
8with [MCP tools](https://modelcontextprotocol.io/specification/latest/server/tools.md) and
9[resources](https://modelcontextprotocol.io/specification/latest/server/resources.md) is recommended since MCP
1010Apps combine both primitives. Experience with the
1111[MCP TypeScript SDK](https://github.com/modelcontextprotocol/typescript-sdk)
1212will help you better understand the server-side patterns.
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