Communication APIs

Communication APIs for voice, video and messaging

EnableX Communication APIs are a set of REST APIs and SDKs for adding phone calls, WebRTC video and WhatsApp, SMS and RCS messaging to any application. They run on one account and one dashboard, in 50+ countries, on the EnableX cloud or inside your own data centre.

Carrier-grade calling in 50+ countries, WebRTC video for the browser and mobile, and one messaging API for WhatsApp, SMS and RCS. Build on our cloud today and move to your cloud or on-premise when compliance asks for it.

Communication APIsThe channels you build onVoice|Video|Messaging
Run it anywhereOur cloud, your cloud, or on-premiseCloud|Private cloud|On-premise
Get API keys, free Book a 20-min demo See pricing
200+ enterprise customers
100K+ voice calls a day
50+ countries
99.5% uptime SLA
Three stacks, one account

Pick a channel, or all three.

Each stack is a complete product with its own API, SDKs and quickstart. They share one account, one API key, one dashboard and one bill, so adding a channel is a config change, not a new vendor.

Stack 01 · Voice

Voice: from a phone number to an AI agent.

Make and receive calls on PSTN, SIP and WebRTC with programmable call flows, IVR, recording and conferencing. Stream live call audio over WebSocket into your own speech and language models at sub-second round trip. The same stack runs collections dialers and AI agents alike.

Explore Voice API → Voice Streaming →
Also in this stack: IVR Builder Virtual Numbers Text to Speech Speech Recognition Number Masking Missed Call
1

Telephony interconnects

PSTN, SIP and WebRTC in 50+ countries, with local, mobile and toll-free numbers and bring-your-own-carrier SIP trunking.
2

Voice API

Programmable inbound and outbound calls, IVR, recording and conferencing. The layer every voice app sits on.
3

Voice StreamingFor voice AI

Bidirectional WebSocket audio for any speech-to-text, language model and text-to-speech, or an open-source agent framework.
4

Voice AI agents

EnableX Conversational AI (Dialogs) runs managed voice agents on the same stack, in 30+ languages, with an on-premise option and human handover on chat, voice or video.
Stack 02 · Video

Video: the session that replaces a visit.

WebRTC rooms with screen share, recording and HLS broadcast, with optional AI analysis of the session. The same stack runs video KYC and account opening, remote technical support, HR interviews with AI analysis, telehealth consultations and virtual classrooms. 50K+ video KYC sessions a month run on it for one of the world's largest fintechs.

Explore Video API → HLS Broadcast →
Use cases: Video KYC Remote tech support HR interviews with AI Telehealth Virtual classrooms
1

Video Call API (WebRTC)

1:1, group and breakout rooms with adaptive bitrate, screen share and server-side recording. SDKs for web, iOS, Android and React Native.
2

AI in the session

Liveness and ID match for identity flows, transcripts and summaries for interviews and consultations, engagement signals for classrooms. Optional, per room.
3

HLS broadcast

View-only audiences at scale on web, mobile and TV with adaptive bitrate streaming and geo-aware routing.
Stack 03 · Messaging

Messaging: one API for WhatsApp, SMS and RCS.

Send once and let the platform pick the channel per recipient, with automatic fallback and one delivery-receipt format. Developers get the Unified Messaging API; marketing teams get Campaign Manager on the same account.

Unified Messaging API → Campaign Manager →
Channels: WhatsApp Business API SMS API RCS API
1

Unified Messaging API

One endpoint that checks each recipient, delivers on the best channel, falls back when it has to and returns one receipt format.
2

WhatsApp Business API

Templates, broadcasts and two-way conversations. EnableX is a Meta Tech Partner and handles onboarding.
3

SMS API

Direct carrier connections in 50+ countries, sender registration and local compliance handled per country, with routing, delivery receipts and retries.
4

RCS Business Messaging

Rich, branded, verified messaging on Android: carousels, suggested replies and payment flows, with no app to install.
EnableX Conversational AI (Dialogs) · AI on the same stack

Add an AI agent to any channel.

Voice agents on the Voice API, chatbots on WhatsApp, RCS and web, and human handover with the transcript attached. No platform switch and no second integration.

Voice agents AI chatbots Human handover Conversation Intelligence Bring your own LLM On-premise
Explore Conversational AI →
Deployment

Our cloud, your cloud, or fully on-premise.

Start on the EnableX cloud with a free trial. When data residency or regulation requires it, the same platform runs in your cloud, a private cloud or your own data centre. Telcos and system integrators can run it white-label under their own brand.

On-premise CPaaS: what it is and who needs it →
EnableX cloud

Sign up, get API keys and run the quickstart. Pay as you use, no platform fee.

Your cloud

The same platform in your cloud account or a private cloud, with your data in your region.

On-premise

Full stack inside your data centre, including air-gapped environments. Licensed annually.

White-label

Telcos and SIs run EnableX under their own brand and bill on their own invoice.

Why teams build on EnableX

What sets EnableX communication APIs apart.

01

Full-stack

Voice, video and messaging are each complete products on one platform, so you never stitch vendors. One account, one API key, one dashboard, one bill.

02

Deployment choice

Our cloud, your cloud, private cloud or fully on-premise, with controls aligned with ISO 27001 and SOC 2 Type II, so data-residency and sector-regulator reviews stop being blockers.

03

White-label

Telcos and system integrators run EnableX under their own brand and bill on their own invoice, as an annual licence. EnableX is the engine, invisible.

Use cases by industry

Where teams use EnableX communication APIs

All solutions
Pricing

Pay as you use. No platform fee.

Per minute for voice and video, per message for SMS, WhatsApp and RCS. WhatsApp conversation fees pass through from Meta. Free trial, no credit card. On-premise and white-label deployments are quoted as annual licences.

Communication APIs pricing → Conversational AI pricing

Questions teams ask about the Communication APIs

EnableX Communication APIs are a set of REST APIs and SDKs for adding phone calls, WebRTC video and WhatsApp, SMS and RCS messaging to any application. They run on one account and one dashboard, in 50+ countries, on the EnableX cloud or inside your own data centre.

Voice (PSTN, SIP and WebRTC calling, IVR, recording, conferencing and real-time audio streaming), video (WebRTC rooms, screen share, recording and HLS broadcast) and messaging (WhatsApp, SMS and RCS through one Unified Messaging API, plus Campaign Manager for broadcasts).

Yes. The full platform runs on our cloud, in your cloud, in a private cloud or fully on-premise in your own data centre. On-premise deployments are licensed annually and are built for data-residency and sector-regulator requirements.

Live call audio is forked over a bidirectional WebSocket, so you can use any speech-to-text, language model and text-to-speech, or an open-source agent framework, with sub-second round trip. EnableX handles the carrier side: interconnects, DTMF, recording and call records.

Pay as you use per channel: per minute for voice and video, per message for SMS, WhatsApp and RCS. There is no platform fee. The free trial needs no credit card, and volume pricing is handled by our sales team. On-premise and white-label deployments are quoted as annual licences.

API keys take minutes, and most developers run a quickstart the same day. Enterprise and on-premise timelines depend on your security review and are agreed with our delivery team.

Build communication that thinks.

Voice, video and messaging on one platform, with AI on top when you are ready.

Get API keys, free Talk to sales

Free trial credits · No credit card · API keys in minutes

Related guide: On-Premise CPaaS: what it is and who needs it