The weather data example in their documentation makes it really simple to grasp how it works as an interface for models: https://modelcontextprotocol.io/quicks

The weather data example in their documentation makes it really simple to grasp how it works as an interface for models: https://modelcontextprotocol.io/quickstart/server https://modelcontextprotocol.io/quickstart/server I don't think it's terribly difficult to drill down into their GitHub to see what's happening under the hood if you need that level of detail.