To use one of our Dappier AI Data Models, you will need an API key. Please visit Dappier Platform (platform.dappier.com/) to log in and create an API key in your profile. You can find more details on the API reference : docs.dappier.com/introduction To work with our Dappier Chat Model you can pass the key directly through the parameter named dappier_api_key when initiating the class or set as an environment variable.