Messaging · RCS

RCS Business Messaging API with a verified, branded sender.

Send carousels, suggested replies, action buttons, and branded, verified business messages on Android's native messaging app. You get higher engagement than SMS and more reach than standalone apps. Cascade to SMS and WhatsApp through the Unified Messaging API for reliable delivery on every device.

Verified sender · Rich media · Suggested actions · Cascade with SMS / WhatsApp · Direct and global carrier routes

Send your first RCS message

Authenticate with your App ID and Key, send one request, and your first rich RCS message goes live with SMS fallback built in. Copy, paste, run.

curl -X POST https://api.enablex.io/rcs/v1/messages \
  -u APP_ID:APP_KEY \
  -H "Content-Type: application/json" \
  -d '{
    "type": "text",
    "phone": "+14155550100",
    "agent": "your-agent-name",
    "text": "Hi Alex, your appointment is confirmed for tomorrow at 10:00 AM.",
    "suggestions": [
      { "type": "reply", "text": "Confirm", "postback": "appointment_confirmed" },
      { "type": "reply", "text": "Reschedule", "postback": "appointment_reschedule" }
    ],
    "fallback_text": "Your appointment is confirmed for tomorrow at 10:00 AM."
  }'

Read the quickstart →  ·  Full RCS API reference →

Rich cards and carousels
Verified sender on Android
Auto cascade to SMS / WhatsApp
Direct + global carrier routes

What the RCS API includes

Branded sender. Rich cards. Quick replies. Suggested actions. Payment flows. Cascade safety net. One API.

Trust

Google Verified Sender

Brand logo, verified badge, and business profile show in the message thread. Same trust signal as the Play Store, but in chat.

Rich media

Cards & carousels

Single rich cards or swipeable carousels with images, videos, titles, descriptions, and CTA buttons. Up to 25,000 characters per message.

Interactivity

Suggested replies & actions

One-tap quick replies, dial, open URL, calendar invite, share location, and request payment.

Reliability

Auto cascade to SMS / WhatsApp

If the recipient isn't RCS-capable, fall back to WhatsApp or SMS in the same API call, so the message still arrives on a fallback channel.

Insights

Read receipts & analytics

Sent, delivered, read, replied: per message, per template, per campaign. Webhook on every state change, dashboards on every funnel.

Compliance

Encrypted & opt-in safe

Messages travel over IP with carrier-managed E2E encryption where supported, consent and STOP/START are handled, and local consent rules are applied per country.

Built for the workflows where rich beats plain text

BFSI, retail, logistics, healthcare: the places customers expect more than a 160-character SMS.

BFSI

Statements & payment flows

Card statements with quick-reply pay, EMI offers with one-tap apply, fraud-alert verification with branded trust signals.

Voice AI for banking
Retail / D2C

Carousel product drops

Swipeable product carousels in the SMS inbox, with add-to-cart and buy-now CTAs, no app install needed.

Retail and ecommerce
Logistics

Delivery tracking with map

Live ETA cards, driver photo, share-location action, reschedule one-tap, designed to reduce failed deliveries.

AI for customer support
Healthcare

Appointments & results

Visit cards with map and calendar add, lab-result alerts with secure portal link, refill reminders with one-tap renewal.

Voice AI for healthcare
Travel

Boarding pass & updates

Boarding-pass cards, gate-change push, ancillary up-sell with one-tap purchase. Native to the SMS app, no new install.

Talk to sales
Telco

Plan upgrades & renewals

Branded recharge prompts, plan-comparison cards, one-tap renewal. Replaces generic SMS with operator-branded experience.

Talk to sales
Spotlight · Verified Sender + Rich Cards

The trust of a verified brand. The interactivity of an app. Inside the SMS inbox.

RCS turns the most-opened app on Android, the messaging app, into a branded surface for your business, with your logo, verified badge, brand colour, rich cards, carousels, and one-tap actions. Nothing for the customer to install.

  • Google Verified Sender registration handled end-to-end: brand logo and verified badge in every message.
  • Single rich cards and swipeable carousels with image / video / title / description / multiple CTA buttons.
  • Suggested replies and suggested actions: dial, open URL, share location, calendar invite, request payment.
  • Auto-cascade: if device isn't RCS-capable, the same payload falls back to WhatsApp or SMS, all from one API call.
  • Direct carrier RCS routes in our core markets plus Google Jibe globally.

Why teams build RCS on EnableX

What sets the EnableX RCS API apart.

01

Direct and global RCS routes

Direct carrier RCS routes in our core markets plus global coverage, with Verified Sender registration handled by EnableX.

02

One API, three channels

RCS first, WhatsApp fallback, SMS as the last resort, all in a single API call. No stitching. No three vendors. No duplicate billing.

03

Full-stack: SMS + WhatsApp + RCS + Voice + Video

One platform, one bill, one SLA. On-prem deployment available for BFSI, government, and sovereign requirements.

Pricing

Pay-as-you-use RCS. Cascade billed only once.

Per-message rates by region and message type (basic / single rich card / carousel). Cascade fallback to WhatsApp or SMS billed only once per recipient. Free trial credits included, no credit card required.

RCS API FAQs

The EnableX RCS API enables businesses to send branded, rich media messages like images, carousels, videos, and action buttons directly into users' native messaging apps, where customers can tap, swipe and reply instead of reading plain text.

RCS supports longer texts (up to 25,000 characters), rich media (images, video, carousels), typing indicators, read receipts, sender verification, and end-to-end encryption, features not possible with SMS.

SMS is text-only while RCS offers a rich, interactive messaging experience such as branded and verified sender IDs, rich media, and interactive content, so the message looks and works like a mini app.

RCS is available on Android devices, and Apple announced on Sept 16th 2024 that RCS is supported in iOS 18. The most common way to access RCS messages is through the Google Messages app. To check if your phone supports RCS, open Google Messages, go to the menu in the top right, select Settings, and then choose Chat Features.

RCS offers greater security compared to traditional SMS. RCS messages are transmitted over the internet and, in some cases, include end-to-end encryption, providing stronger protection against interception and unauthorised access.

If both sender and recipient don't have RCS enabled, or there's no internet connection, the message automatically cascades to WhatsApp or SMS depending on your fallback rules. The same API call, and the message still arrives on a fallback channel.

EnableX handles end-to-end Verified Sender registration with Google: brand profile, logo, business description, verified phone numbers, and category. Once approved, your brand logo and verified badge appear in every RCS message thread.

Build with RCS Messaging API: Developer Docs

See EnableX in action.

Talk to sales, or start a free trial. No credit card required.

Free trial credits · No credit card · API keys in 2 minutes

Related guide: RCS vs WhatsApp vs SMS: 2026 decision framework