# Authentication In your omnidesk application a key can be created to which certain permissions will be granted. You could for instance assign customer creation and deletion to a key. Most permissions are devided in two categories: READ permissions and CUD (create update delete) permissions for a given endpoint. Once you have created a key and given it permissions you will be able to authenticate with it by sending ?apiKey=\[\[ your key ]] in the API url. {% hint style="info" %} An example would be: . Since this is a GET request for the customer endpoint it will list all customers, limited by paging. {% endhint %} --- # 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.omnidesk.io/omnidesk/api/authentication.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.