Official WhatsApp Cloud API · Multi-tenant

Every customer
conversation,
one workspace.

Onboard multiple companies onto WhatsApp Cloud API in seconds with Meta's Embedded Signup — then run WhatsApp, Instagram and Messenger from a single, beautifully fast inbox.

Meta Tech Provider Cloud API v20.0 HMAC-signed webhooks
GrabnChat
/inbox live
WhatsApp · just now
+1 482 901 4477 connected
Embedded signup
Template approved · UTILITY
/ what's inside

Built for agencies running WhatsApp at scale.

Dynamic Embedded Signup

Customers connect their own WhatsApp Business number in one flow — no IT tickets, no copy-pasting tokens.

Multi-company workspaces

Every brand gets isolated inbox, contacts, templates, agents and analytics. Manage all from one admin.

Unified inbox

Reply to WhatsApp, Instagram DMs and Messenger threads from a single, low-latency conversation view.

Agents & roles

Add unlimited teammates, assign threads, and keep customer notes that travel across channels.

Templates & broadcasts

Submit templates to Meta, monitor approvals and send compliant marketing or utility broadcasts.

HMAC-secure webhooks

Every incoming Meta webhook is verified with X-Hub-Signature-256 and routed to the correct tenant.

/ how it works

From signup to send in 90 seconds.

Meta's official Tech Provider flow, packaged so your customers never see a config token.

01
Set the global Meta App config

Admin pastes App ID, Secret and Embedded Signup config once. Stored encrypted, never sent to the browser.

02
Onboard a brand

Create a tenant + owner. Their workspace ships with isolated contacts, templates, broadcasts and analytics.

03
Customer clicks Connect WhatsApp

Meta's Embedded Signup popup runs in their browser. We exchange the code for a long-lived business token server-side.

04
Webhook + send live

We subscribe the WABA, register the phone, and start receiving messages with HMAC-verified webhooks.

/ get started

Two portals. One platform.

GrabnChatadmin

Run the agency.

Onboard brands, manage the Meta App config, and monitor every tenant's WhatsApp health from one dashboard.

GrabnChatapp

Run the brand.

Connect WhatsApp via Embedded Signup, reply from a unified inbox, run broadcasts, and track every conversation.