APIs & SDKs

Build In-App Chat Feeds Video & Moderation Faster.

Build once and scale continuously with real-time infrastructure that adapts to your app.

Start Coding Free Contact Sales

End Users: 1+ Billion

Apps: 2000+

Uptime SLA: 99.999%

API Response: ~9ms

Security & Compliance

Scale In-App Engagement

Faster App Development

With a broad amplitude of SDKs available, our developer experience accelerates your product launch and allows iterations at an extraordinary pace and level of quality.

Elevated User Experience

Rapidly deliver a best-in-class user experience with our pre-built UI components, or build the exact experience you are looking for with the flexibility of our APIs and SDKs.

Enterprise Grade Infrastructure

With zero hard limits and the ability to support 5M+ users in a single channel, Stream is the number one choice for companies looking for scalability, performance, and high availability.

Modern SDKs

Custom UI &
Flexible SDKs

Stream provides the flexibility you need to deliver the exact experience your users want by customizing our pre-built UI components, building new ones, or leveraging our APIs and SDKs to support your unique needs.

example of chat messaging, video and audio, and activity feeds mockups using light theme

Launch Real-Time <Chat Messaging /> Faster

Launch in-app chat messaging in days with features, performance, and UX that would otherwise take months to develop in-house.

Designed By Developers
For Developers

Integrate our SDKs in days without losing the flexibility your customizations require.

Configure our pre-built UI components or customize yours
Low-level clients and backend SDKs
Webhooks and SQS integration
Custom messages, events, and metadata

Start Coding Free View Chat SDKs

import React from 'react'
import {
  Channel,
  ChannelHeader,
  Chat,
  MessageInput,
  MessageList,
  Thread,
  Window,
} from 'stream-chat-react'
import 'stream-chat-react/css/v2/index.css';
const App = () => (
  <Chat client={chatClient}>
    <Channel channel={channel}>
      <Window>
        <ChannelHeader /> 
        <MessageList /> 
        <MessageInput />
      </Window>
      <Thread />
    </Channel>
  </Chat>
)

Launch Real-Time <Video and Audio /> Faster

Build a fast and engaging in-app video calling, voice calling, audio room, or livestreaming experience in days.

Carefully Designed
Video SDKs for Any Use Case

Integrate our SDKs in days without losing the flexibility your customizations require.

Fast and reliable experience for your video calls and livestreams
Configure our pre-built UI components or customize your own
Ultra-low latency video broadcasting
Dynascale and webhooks integrations

Start Coding Free View Video SDKs

// init
const call = client.call(type, id);
await call.join();

// render
return (
  <StreamVideo client={client}>
    <StreamCall call={call}>
      <UILayout/>
    </StreamCall>
  </StreamVideo>
);

Launch Real-Time <Activity Feeds /> Faster

Activity feeds infrastructure and APIs that scale to millions of followers without worrying about performance and reliability, so you can focus on what you do best.

Unmatched Feeds
Infrastructure at Scale

Ship fully-featured, polished social experiences today that take other companies years to build in-house.

For-You Feeds
Personalized Algorithms
Activity Filtering
Search & Queries

Start Coding View Feeds SDKs

// Add an activity to 1 feed
let activity = try await feed.addActivity(
    request: .init(
        text: "hello world",
        type: "post"
    )
)
// Add an activity to multiple feeds
let multiFeedActivity = try await client.addActivity(
    request: .init(
        feeds: ["user:1", "stock:apple"],
        text: "apple stock will go up",
        type: "post"
    )
)

Flexible SDKs For Every Use Case

Design and build any chat, feeds, video, and moderation integration for every industry.

View All Solutions

AI Chat Bot

Integrate AI experiences into your messaging app using Stream, OpenAI's ChatGPT, or Google's Gemini to build a rich, engaging, tailored UX across all platforms and SDKs.

Learn More