get
https://api.sintalk.com.br/v3/messages
Messages are returned newest first, ordered by created_at descending. There is no implicit default time window. Array-valued filters (channel, status, template_id, campaign_id) are repeatable query parameters (e.g. status=sent&status=delivered): values are OR-combined within a dimension and AND-combined across dimensions; each also accepts a single value. status_history is empty on list items — read a single message to get it.