Blog da API Oficial do WhatsApp
Guias técnicos sobre a Cloud API da Meta: integração, webhooks, templates, custos e boas práticas para quem desenvolve.
-
How to validate the WhatsApp webhook signature (X-Hub-Signature-256)
How to verify the X-Hub-Signature-256 header on WhatsApp Business API webhooks with HMAC SHA-256, with Node.js, Python and PHP code and the mistakes that break it.
-
Should you get the WhatsApp Business API directly from Meta or through a provider?
Direct from Meta or through a provider? An honest comparison of cost, billing, infrastructure, support and coexistence, plus the cases where going direct wins.
-
WhatsApp Business API, Business Platform and Cloud API: the names explained
WhatsApp Business app, Business Platform, Cloud API, On-Premises and Marketing Messages API: what each name means and what still exists in 2026.
-
WhatsApp Business API: 40 questions and answers
The 40 most common questions about the official WhatsApp Business API, with short answers on access, pricing, templates, limits, coexistence, tech and accounts.
-
Can I build my own WhatsApp API?
Yes, you can build your own WhatsApp integration on Meta’s official Cloud API. Here is the step-by-step path and what you are not allowed to do.
-
WhatsApp Business API in 2026: every change, month by month
Every WhatsApp Business API change in 2026, January through October, with dates and official links. Updated as Meta ships new changes.
-
WhatsApp account vs. Messaging account: the new WABA structure
Since Sept 23, 2026, the WABA became two accounts: the WhatsApp account, with the number, and the Messaging account, with templates and billing.
-
Marketing Messages API: how to migrate your WhatsApp marketing sends before October 2027
Cloud API stops sending marketing templates on October 13, 2027. Deadlines, the new endpoint, error 131063 and a migration checklist.
-
WhatsApp usernames and BSUIDs: what changes for API users
With usernames, a customer’s phone number can disappear from your webhooks. Learn what a BSUID is, the new fields, and how to adapt your CRM.
-
Black Friday on WhatsApp: send calendar, budget and limits
How to plan Black Friday 2026 on WhatsApp with the official API: week-by-week calendar, budget from Meta’s rate card, messaging limits and ready-to-adapt templates.