Overview
Practical flows: send (private + group), groups, channel, message history, webhook & event scope.
Auth: Bearer {{api_key}} (inherited).
Plan note: Only Basic is restricted. It can send messages and use getGroupList, sent/pending lists, most Client APIs, and getSettings. Webhook, event-scope, Channel, and many Message/Group/Chat/Contact actions need a plan above Basic. See the collection description for the Basic list.
Full API reference is in WhatsApp API v2.0 below.

