# Model Providers Each system has reputation and identity needs specific to their use case. The main difference lies in the way reputation is generated. The Orange protocol defines a role for the party that adds a method of calculation, an model, to the system for calculating and assigning reputation markers to different entities within the ecosystem. It is referred to as an **Model Provider**, or **MP**. An model defines the parameters it takes and the operations it performs with each one of them. MPs have total control over the way they design models to generate reputation. They may generate singular scores, multiple scores with specific properties, or even reports with rich attributes. {% hint style="info" %} **Model Providers** may choose to keep their model **private** and accessible only to themselves on the Orange platform. Any model or service, unless made **public**, cannot be viewed or selected by other users in the Orange network. {% endhint %} ## Why become a MP? As Model Providers design their custom models, they can choose to make them available for other parties to use and integrate to their systems. Systems with similar requirements need not each design their own model if they can find and use one that demonstrably works. --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://docs.orangeprotocol.io/design/model-providers.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.