# Extensible API

YURI AI uses the most popular and flexible REST API, where the client sends requests to the server in the form of data, and the server uses the input to run internal functions and returns the output data to the client.

The REST API is highly extensible and easy to use. It keeps the underlying blockchain protocol unchanged and handles transactions under the protocol, changing the usage of the protocol to improve extensibility. It adopts a multi-chain architecture that divides the original chain into multiple ones, each of which provides part of the computing and storage services. The more business data, the more chains, and the better the system’s overall performance.

<figure><img src="/files/S2owWOTEKpWrmAobg7cL" alt=""><figcaption></figcaption></figure>


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Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
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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.