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Basics

What is the WhatsApp Business API?

Quick answer

The WhatsApp Business API is Meta's programmatic interface that lets businesses send and receive WhatsApp messages at scale through software instead of a phone. It has no chat screen of its own — messages flow through a platform, CRM or backend, enabling notifications, chatbots, a shared inbox and automations.

In detail

The WhatsApp Business API is the interface Meta provides so medium and large businesses can integrate WhatsApp messaging into their own systems. Unlike the consumer WhatsApp app or the small-business WhatsApp Business App, the API has no chat screen — messages are sent and received by software such as a CPaaS platform, a CRM or a custom backend.

With the API a business can send notifications (order updates, one-time passwords, reminders) using pre-approved message templates, run a shared team inbox where several agents work one number, build chatbots and automations, and receive inbound messages through webhooks. The account itself is a WhatsApp Business Account (WABA), which can hold one or more phone numbers.

Businesses usually do not connect directly with Meta. They go through a Business Solution Provider (BSP) or Meta Business Partner that provisions access, handles template approval and adds the tooling on top. InfiQ is an official Meta Business Partner: it provisions API access and layers broadcasts, chatbots, a shared inbox and developer APIs over it.

The API is designed for scale and reliability rather than casual chatting. Business-initiated messages must use approved templates, customers must have opted in, and how many people you can proactively message per day is governed by messaging tiers that rise with your quality rating. That structure is what keeps the channel trusted — and why WhatsApp remains a high-open-rate channel for transactional and marketing messages.

Key points

  • A programmatic API from Meta — no chat screen; messages flow through software.
  • Built for scale: templates, chatbots, shared inbox, webhooks and automations.
  • Access is provisioned through a BSP / Meta Business Partner such as InfiQ.
  • Business-initiated messages need approved templates and prior opt-in.
  • The account is a WhatsApp Business Account (WABA) holding one or more numbers.

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FAQ

Related questions

Is the WhatsApp Business API the same as the WhatsApp Business App?

No. The WhatsApp Business App is a free phone app for small businesses with a chat screen. The API is a programmatic interface with no app of its own, built for scale, automation and multiple agents on one number.

Do I need to be a large business to use the API?

No. There is no hard size requirement. The API suits any business that wants automation, a shared team inbox, chatbots or high message volumes — from a growing D2C brand to an enterprise.

Can multiple agents use one WhatsApp number on the API?

Yes. A core benefit of the API is a shared team inbox where several agents handle conversations on a single business number, with routing, assignment and history.

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