WhatsApp API reference
Everything we know about running WhatsApp for a business, written down plainly. No signup, no gated PDFs. If something here is wrong or out of date, tell us and we will fix it.
Learn the platform
WhatsApp API explained
Which APIs Meta offers, how the app differs from the API, how to get access, and what India rates look like.
Read the guideWhatsApp Chat API
Two-way conversations: the 24-hour window, webhooks, interactive messages and what an inbox needs.
Read the guideWhat a WhatsApp team inbox is
How several people answer one business number, what the app cannot do, and eight things to check before buying.
Read the guideBuild with the API
API documentation map
A developer's map of Meta's docs: auth, IDs, endpoints, message types, media, templates and go-live checks.
Read the guideWebhook setup guide
The verify handshake, payload shapes, signature validation and the practices that keep delivery reliable.
Read the guideAPI error codes
Common Cloud API error codes with what each one means and the fix, in plain language.
Read the guideWrite better messages
Message template examples
Marketing, utility and authentication templates you can copy, shown as they render on a phone.
Read the guideWhy templates get rejected
Every common rejection reason, what Meta means by it, and the edit that gets the template approved.
Read the guideAuto reply examples
How auto replies work on the app and the API, with 30 example messages across seven situations.
Read the guidePut your WhatsApp to work.
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