Pokee (https://pokee.ai/) automates tasks given via instructions related to several connected applications (Google suite, calendars, email, social networks, web search, Notion, etc., see list).

Run with or without prior user validation.
Ability to schedule recurring tasks (one per week in free version).

300 credits per month free (no accounts present in the account settings, the limit was not reached after 5 automations and several iterations during testing).