CREATE RICH CONVERSATIONS

Upgrade your messages with RCS via API

Send rich, branded messages that capture attention and build trust. Use RCS for Business through the Sinch Conversation API to engage customers on supported networks worldwide. 

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WHAT MAKES IT GREAT

Why RCS via API with Sinch works

When you need to send RCS messages via API, look no further than the Sinch Conversation API. You’ll get branded, rich messages that convert — backed by global reach, message fallback, and robust analytics to keep improving results. 

Boost engagement

Send branded, media-rich, interactive messages packed with app-like experiences that grab customers’ attention and keep them clicking.

Reduce fraud

Verified sender profiles add a layer of security that protects customers and keeps conversations trustworthy.

Optimize performance

Track campaigns and results in real time, prove ROI, and support fast launches, effortless scaling, and future-ready agility.
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RICH, INTERACTIVE EXPERIENCES

Turn basic texts into rich conversations

Move beyond plain SMS. Add images, videos, carousels, and interactive buttons, so customers engage longer and click more, driving higher conversion rates compared to SMS.

  • Images, videos, carousels, and quick replies

  • High open rates within minutes

  • Significantly higher click-through rates than SMS

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VERIFIED TRUST & SECURITY

Build instant credibility with every message

Show your logo and brand name so customers always know it’s you. Verified profiles build trust and help protect users from fraud.

  • Branded sender name and logo

  • Verified by select carriers or Google

  • Fraud-resistant customer experience

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GLOBAL REACH & INSIGHTS

Reach anyone, anywhere with smart routing

Our global super network with smart routing delivers messages via Conversation API and automatically falls back to SMS or MMS when needed. Real-time analytics give insight into how you can optimize campaigns and prevent fraud.

  • Smart routing with fallback

  • Real-time delivery and read rates

  • Over 1 billion RCS messages are sent daily on Sinch’s global network

TOP USE CASES

See what’s possible with RCS via API

Marketing campaigns

Send immersive shopping experiences, offers, and promotions right into the messaging inbox with images, carousels, and buttons that guide customers to purchase.

Customer updates

Keep customers in the loop with branded delivery updates and appointment reminders that cut down on no-shows.

Identity & verification

Send branded one-time passcodes and suggested actions that let users log in or confirm their identity in a single tap.

Customer service

Make it easy to book, reschedule, or chat. Combine interactive messages with AI-assisted support for faster resolutions and happier customers.

WHY YOU’LL LOVE RCS VIA API

Everything you need to future-proof messaging

Verified business profile

Show your logo and verified name (approved by select carriers and/or Google) to build instant trust and reduce fraud.

Rich & interactive media

Share photos, videos, product carousels, and suggested actions and replies right inside the conversation.

Secure messaging

Enterprise-grade security with encryption at rest and in transit keeps every conversation protected and secure.

Rich, app-like experiences

Let customers complete actions—like payments, forms, and viewing product pages—without leaving the chat.

AI & automation integration

Combine automation and live chat for smooth, intelligent customer experiences.

Connect

Meet your customers where they are. Conversations can be started from anywhere – links, QR codes, web pages and live in your customers’ native inbox.

Smart routing & fallback

Get global reach by automatically switching to MMS or SMS if RCS is not supported in a country or on a device.

API integrations

Easily plug in your CRM, e-commerce, and helpdesk systems—including Salesforce via our Omniconnector—through the Sinch Conversation API.

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Frequently asked questions

RCS (Rich Communication Services) is a messaging protocol developed by the Global System for Mobile Communications Association (GSMA) as the evolution of SMS. It’s a peer-to-peer (P2P) messaging service aimed at replacing and upgrading SMS.

RCS for Business is the commercial form of RCS allowing businesses to communicate with consumers. It offers richer, branded messages with built-in security. 

SMS is text-only and basic. RCS for Business lets you include rich media, branded messaging, verified profiles, and get enhanced security and advanced analytics.

RCS is widely supported on Android, and RCS support on iOS devices has continued to expand since the release of iOS 18. 

Register your RCS Agent in Sinch Build or Provisioning API, then submit it for carrier or Google verification and approval, and then you can start sending with the Conversation API.  

RCS messages are protected with enterprise-grade encryption in transit and at rest.

Businesses using RCS see higher engagement, open rates, and conversion rates—often up to 80%. Customers prefer RCS for its richer, more trusted experience.

It’s a service or system that connects platforms supporting RCS to networks, powering the delivery of rich, interactive RCS messages.

If a recipient’s device or network doesn’t support RCS, messages automatically switch to SMS or MMS to ensure reliable delivery.

You’ll need to set up your Conversation API through the Sinch Build Dashboard, then register and launch the RCS Sender Agent. Once that’s done, you can enable the RCS channel and begin sending RCS messages. 

Pricing is set by carriers and depends on message type. To learn more, talk to an expert today.