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WhatsApp Cloud API

What WhatsApp Cloud API is and how a white-label agency uses it

Cloud API is the official WhatsApp Business Platform API. How it relates to “Business API,” coexistence, Tech Providers, and white-label resale with 42agents.

Last updated: September 15, 2026

  • 7-day free trial on any plan
  • Official Cloud API with coexistence
  • Your brand, your price, your client

From USD 39/account · 7-day free trial

WhatsApp Cloud API is the official API of the WhatsApp Business Platform, hosted on Meta’s infrastructure. It is the current way to send and receive business messages at scale: templates, the 24-hour window, webhooks, and verified numbers on a WABA. When people say “WhatsApp Business API,” they almost always mean this same platform (the older On-Premises API was retired by Meta). Cloud API is not a chatbot: it is the pipe. On top sit inbox, AI agents, and white-label. 42agents operates as a Meta Tech Provider: your agency connects the client’s number with Embedded Signup, keeps coexistence (phone + WhatsApp Web), and resells the agent under your brand from USD 39 per account.

Cloud API vs “Business API”: same product, older names

Sales decks still say “WhatsApp Business API.” Historically that covered On-Premises API (customer or BSP servers) and later Cloud API. Today the supported path for most new integrations is Cloud API. If a vendor says “Business API,” ask whether it is official Cloud API or an unofficial WhatsApp Web bridge. 42agents uses Cloud API only, via Meta Tech Provider.

What you need to put a number on Cloud API

You need a WhatsApp Business Account (WABA) in Meta Business Manager, an eligible number, business verification when required, and a provider that registers the number (BSP or Tech Provider). With Embedded Signup the client authorizes in a few clicks. The number is no longer “app only”: it can send templates outside the 24-hour window, with Meta conversation fees separate from software.

Coexistence: the phone stays on

Coexistence is a Cloud API capability: the same number stays on WhatsApp Business on the phone and on WhatsApp Web while the API sends and receives. That matters for SMBs and agencies: nobody wants to kill the usual chat just to automate. 42agents treats coexistence as the product default.

What 42agents adds on top of Cloud API

Cloud API does not give you agency branding, multi-account, or an agent. 42agents is the white-label layer: multi-client console, shared inbox, BYOK AI agent (OpenAI / OpenRouter), subdomain or custom domain. Pro: USD 39/account/month. Premium: USD 117/month from 3 accounts. Unlimited contacts and sends on the platform; Meta bills conversations separately. 7-day trial; signup is available in the dashboard.

When Cloud API is the right call

Use it when you need official messaging, templates, number quality, click-to-WhatsApp ads at scale, and a serious inbox/agent. Skip it if you only need a homemade QR with no API. For agencies that resell, Cloud API plus white-label keeps the client from ending up on someone else’s brand.

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From USD 39 per account. Free trial on any plan. White-label under your brand. Signup is available in the dashboard.