There's a new version of the HubSpot API

Starting November 30, 2022, API keys will be sunset as an authentication method. Learn more about this change and how to migrate an API key integration to use a private app instead.

How do I find the app ID for a HubSpot app?

Your app ID can be found below the name of your app when viewing the Apps dashboard in your developer account.

app_id_list

The app ID is also displayed when viewing the auth settings for your app.

app_auth_id_settings