CPaaS X: Multi-tenant communication layer

Manage traffic, resources (phone numbers, sender IDs, email domains), and reporting separately for each customer, brand, or business unit you support, all from a single Infobip account. CPaaS X handles multi-tenant isolation, onboarding, routing, and tracking at the platform level so you avoid building it yourself.

Built for platforms, communication service providers, and agencies serving multiple clients.

What is CPaaS X [#what-is-cpaas-x]

CPaaS X is a multi-tenant communication layer built on top of the Infobip CPaaS Platform that isolates messaging traffic, resources, and reporting for each customer, brand, or business unit you manage from a single account.

CPaaS X sits between your platform and the Infobip messaging infrastructure. When you create applications and entities (think of them as your projects and tenants), CPaaS X maps every API call, message, delivery receipt, and webhook to the correct tenant so your customers operate in complete isolation without you building that logic yourself.

CPaaS X lets you offer communication services at scale:

Multi-tenant communication at scale
Serve hundreds or thousands of customers from a single Infobip account with each customer operating in complete logical isolation.
Learn more in Applications and entities.

Automated customer onboarding
Create applications and entities programmatically with no manual setup per customer and immediate access to all communication channels.
See Get started.

Complete data isolation and security
Use scoped API keys limited by entity, feature, or channel so customers can only access their own data.
See Security.

Flexible resource allocation
Assign shared or dedicated resources (phone numbers, sender IDs, email domains) to customers. Choose shared for cost efficiency, dedicated for branding, or hybrid models.
See Understanding resources.

Intelligent sender selection
Define sending strategies through the API to automatically select the best sender for each message. Route by geography, channel, and sender type.
See Sending strategies.

Per-customer billing and usage tracking
Track all messaging per customer across all channels and enable per-customer billing, usage tracking, and cost allocation.
See Metrics and reporting.

Real-time customer notifications
Subscribe to scoped events (delivery, bounces, responses) where each customer sees only their events through webhooks.
See Webhook subscriptions.

Available channels [#channels]

CPaaS X supports more than 13 communication channels. Each channel is accessible through its dedicated API. Many channels are also available through the unified Messages API, which provides a single endpoint for multi-channel messaging.

SMS

MMS

Email

WhatsApp

RCS

Viber

Voice and Video

Apple Messages

Messenger

Instagram

LINE

KakaoTalk

Zalo

When you send a message, CPaaS X identifies the correct tenant through the application and entity in your request, routes it to the appropriate sender, and tracks delivery back to that specific tenant.

Core concepts [#core-concepts]

How CPaaS X works: Message flow [#how-it-works]

With CPaaS X, your platform can independently onboard customers, handle traffic at scale, and provide usage visibility: all with modular flexibility.

Every message passing through CPaaS X follows a consistent flow that ensures correct customer attribution, proper authentication, intelligent routing, and accurate billing. The following describes what happens when your customer sends a message: