Api CRM Cards

Hi, I’m trying to use the cards api but it gives me an error, I’m using access_token authentication:
curl --location --request GET ‘https://api.hubapi.com/crm/v3/extensions/cards/{appid}’ \
--header ‘Authorization: Bearer {access_token}’

I am getting the following error:
Authentication credentials not found. This API supports both API Key and OAuth 2.0 authentication and you can find more details at Accounts Dashboard | HubSpot

Hi @AHellrigl

Thank you for reaching out.

I want to tag some of our experts here - @nikodev @ChrisoKlepke @Bryantworks do you know what could be happening here?

Thank you!

Best

Tiphaine