The #1 Chat API & SDK for Custom Messaging Apps (2024)

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Chat MessagingAPIFeatures for your dynamic use case

Activity FeedsAPIGrow engagement with enterprise-ready feeds

Build reliable in-app video calling and streaming

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Design + Build
Any Chat Use Case

Build real-time chat messaging in less time. Rapidly ship in-app messaging with our highly reliable chat infrastructure and feature-rich SDKs. Improve your overall in-app conversion, engagement, and retention.

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Why stream chat?

Time to Market
Fully Customizable
5m+ Concurrent Connections
Robust Security
Multi-Tenancy
Easy Integration
The #1 Chat API & SDK for Custom Messaging Apps (9)
The #1 Chat API & SDK for Custom Messaging Apps (10)
The #1 Chat API & SDK for Custom Messaging Apps (11)

Try Stream Chat

Walk through four different example chat apps designed to showcase the flexibility of the best messaging API.

Try DemosAPI Tour

components

  • React
  • Android
  • React Native
  • iOS
  • Flutter
  • Unreal
  • Angular
  • Unity
  • UI Kits

Social In-App Messaging Connects Your Users

Increase real-time engagement in your web or mobile app with the Stream Chat API powering your social messaging services. Effortlessly integrate messaging and connect your users worldwide.

  • Multi-tenant ready
  • Built-in Giphy & Imgur support
  • Emoticons & reactions
  • Direct & group chats
  • Link previews
  • Edit & delete messages
Social DemoTalk to sales

The #1 Chat API & SDK for Custom Messaging Apps (12)

The #1 Chat API & SDK for Custom Messaging Apps (13)

Bring Individuals and Teams Together for Collaboration

Improve community engagement or replace email for your team with Stream's in-app messaging API service. Our components and APIs allow you to build anything from a simple team chat app to a Slack alternative.

  • Slash commands
  • Unlimited users per Channel
  • Moderation
  • Channel Permissions
  • Custom business logic
  • Data is safe & secure
Team DemoTalk to sales

The #1 Chat API & SDK for Custom Messaging Apps (14)

The #1 Chat API & SDK for Custom Messaging Apps (15)

Reliable Live Chat Platform that Drives Customer Engagement

Our Livestream chat service allows you to capture and retain active audience engagement on your web or mobile platform by enabling your users to interact via real-time messaging.

  • Emoticons and gifs
  • Connect millions of users
  • AI-based AutoMod
  • No channel Limits
  • Flexible permission system
  • Fully customizable
Virtual Event DemoTalk to sales

The #1 Chat API & SDK for Custom Messaging Apps (16)

The #1 Chat API & SDK for Custom Messaging Apps (17)

Build an Unprecedented Experience With Our White-Label Chat Solution

Our chat service includes direct access to the best chat API, accompanied by powerful and feature-rich SDKs for your language or framework. We are HIPAA ready, SOC 2 and ISO 27001 certified.

  • HIPAA telemedicine chat
  • Live chat for marketplaces
  • Livestream chat for virtual events
  • Collaborative education chat
  • Interactive gaming chat
Start Coding FreeTalk to sales

The #1 Chat API & SDK for Custom Messaging Apps (18)

The #1 Chat API & SDK for Custom Messaging Apps (19)

The #1 Chat API & SDK for Custom Messaging Apps (20)

Chat EDGE Network

Unlike traditional cloud infrastructure, the performance of the Stream Chat platform doesn’t rely on users' proximity to a regional data center. That means latencies up to 5 times lower and fewer errors caused by poor WiFi or mobile connectivity. Read more about Chat EDGE Network →

  • Low latency
  • e2e Encryption via TLS
  • BGP + DNS routing
  • 99.999% uptime

Developer Designed for Maximum Efficiency

We created our chat API with developer priorities in mind from the start. Integrate quickly with your desired combination of low-level API access and pre-built Stream libraries and components.

  • Always Improving Chat Docs
  • Flutter Chat Tutorials
  • React Chat Tutorials
  • Android Chat Tutorials
  • React Native Chat Tutorials
  • iOS Chat Tutorials
  • Unreal Chat Tutorials
  • Angular Chat Tutorials
  • Unity Chat Tutorials
Chat SDKsAPI Tour

Cloud Components

Our components were developed to enable teams to quickly ship a full-featured, high fidelity, in-app chat experience in days that would typically take years to build in-house.

  • React
  • Android
  • React Native
  • iOS
  • Flutter
  • Unreal
  • Angular
  • Unity

UI Kits

Our free UI kits and design systems were created to match our cloud components and provide teams with the ability to build the best messaging UX within their app.

Chat Messaging UI Kit
Free Downloads →

Key Features Users Need

Ship in-app chat messaging with all the features your users expect. Want to learn more about us? Contact Sales Now→

The #1 Chat API & SDK for Custom Messaging Apps (21)

Message Reactions

The #1 Chat API & SDK for Custom Messaging Apps (22)

Thread Replies

The #1 Chat API & SDK for Custom Messaging Apps (23)

URL Enrichment

The #1 Chat API & SDK for Custom Messaging Apps (24)

User Presence

The #1 Chat API & SDK for Custom Messaging Apps (25)

Flexible Permissions

The #1 Chat API & SDK for Custom Messaging Apps (26)

Slash Commands
  • Reactions
  • Image moderation
  • AI moderation
  • Multi-tenant
  • Silent messages
  • Spam & profanity protection
  • Unread messages counts
  • Media attachments & resizing
  • Threaded conversations
  • User roles
  • Multi-region support
  • Fast response-times(avg 5ms)
  • Presence/who is online
  • @mentions
  • Security & legal compliance
  • Dedicated stack is available
  • Read receipts
  • Mute users
  • Custom slash commands
  • No defined participant limit
  • Typing indicators
  • Ban users
  • Highly available infrastructure
  • Fully customizable
  • Message history
  • Flag messages
  • SDKs & components
  • Unlimited message retention
  • Private channels
  • Custom messages
  • Giphy integration
  • Excellent performance & reliability
  • Public channels
  • Push notifications
  • URL enrichment
  • Enterprise SLA
  • CDN storage
  • Webhooks
  • Language translation
  • Phone support and SAML

The #1 Chat API & SDK for Custom Messaging Apps (27)

“Stream Chat was the right choice for Hopin because it just works so seamlessly. We can focus on the things that we care most about, and we can rely on the Stream team to support us for the rest. We can work on feature development and not have to worry about chat scale, performance, and reliability.”

The #1 Chat API & SDK for Custom Messaging Apps (28)

Mel Mete

Senior Product Manager, Hopin

Next Steps

Create your free Stream account to try out all our Chat product has to offer. No commitment or credit card required. If you want a custom plan or have questions, we are eager to talk with you.

The #1 Chat API & SDK for Custom Messaging Apps (29) Activity Feeds

Build any kind of feed without the headache of scalability or reliability of your feeds.

Learn more about $ Activity Feeds →

The #1 Chat API & SDK for Custom Messaging Apps (31) Enterprise

Available 99.999% uptime SLAs and industry-leading security to power the world's largest apps.

Learn more about $ Enterprise →

Contact SalesStart Coding Free
The #1 Chat API & SDK for Custom Messaging Apps (2024)
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