Most developers reach for Twilio or Meta's official Cloud API the second WhatsApp comes up.
That's usually the wrong first move.
The official API wants Business verification, template approval, and per-message billing before you've sent a single test message. Twilio piles its own markup on top. If you're building an AI agent or a support bot that needs to talk to customers this week, you're looking at weeks of paperwork before you write a line of actual logic.
If you're:
Prototyping a WhatsApp AI agent,
