# API Key To access the Defy API, you will need an API key. If you need one you can contact with us. Just send a mail to . We will reach you immediately. ### Authentication via Header/Query/Body parameter Simply append **api*****key=API\_KEY*** as a query parameter or header parameter or body parameters to all requests. The main advantage of this method is to embed the API endpoints within applications that do not support more sophisticated auth mechanisms, like Google Sheets or as IFrames. ### Authentication via Basic Auth Example of basic authentication. ``` curl --location 'https://api.getdefy.co/v2/ENDPOINT' \ --header 'apikey: APIKEY' ``` Provide your API key as the basic auth username. You do not need to provide a password.
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