RealtimeKit
Build, voice, video and multi-modal apps without infrastructure headache
A complete toolkit to integrate real-time audio and video communication with near-zero latency globally. With multiple abstraction levels, you can meet your specific product and feature requirements without handling WebRTC complexities and low-level infrastructure plumbing.
One toolkit for any platform
Platform-ready SDKs that handle the hard parts of WebRTC like connection management, bandwidth adaptation, device handling.
Advanced media features built-in
Easily integrate complex capabilities like recording, transcriptions, and real-time AI participants with simple, clean APIs.
Real-time observability
Get real-time analytics on latency, packet loss, and other critical health metrics to help you identify and solve issues faster.
Network built for real-time
Latency is critical for real-time apps. Anything above ~100ms starts to feel sluggish. RealtimeKit leverages Cloudflare's Anycast network, which spans over 335+ cities and automatically connects users to the nearest server, ensuring consistent performance and ultra low-latency worldwide. 50ms for 95% of the Internet connected population globally, with 11,500+ interconnects including major ISPs and cloud services.
Audio/Video Apps
Voice Agents
AI & Multimodal
Interactive live streaming
Media processing
Cloudflare RealtimeKit delivers ultra-low latency communication at global scale
Build voice, video, and multimodal applications with near-zero latency worldwide. RealtimeKit handles WebRTC complexities, connection management, and global routing — letting you focus on creating great user experiences instead of managing real-time infrastructure.
import { useEffect } from 'react';import { useRealtimeKitClient, RealtimeKitProvider } from '@cloudflare/realtimekit-react';import MyMeeting from './my-meeting';
export default function App() { const [meeting, initMeeting] = useRealtimeKitClient();
useEffect(() => { initMeeting({ authToken: '
return (
const client = new RealtimeKitClient({ authToken: 'your-auth-token',});
// Create a voice agent sessionconst agentSession = await client.createAgentSession({ agentId: 'support-agent-001', capabilities: { speechToText: true, textToSpeech: true, naturalLanguageProcessing: true, },});
// Handle incoming voiceagentSession.on('voiceInput', async (audioData) => { // Process voice input with AI const transcription = await agentSession.transcribe(audioData); const response = await agentSession.processIntent(transcription);
// Generate and send voice response const audioResponse = await agentSession.synthesize(response); agentSession.sendAudio(audioResponse);});
// Start the sessionawait agentSession.start();
RealtimeKit Pricing
Serverless WebRTC conferencing. View Media pricing details
Audio/Video Participant
—
$0.002 / minute
Audio-Only Participant
—
$0.0005 / minute
Export (recording, RTMP or HLS streaming)
—
$0.010 / minute
Export (recording, RTMP or HLS streaming, audio only)
—
$0.003 / minute
Export (Raw RTP) into R2
—
$0.0005 / minute
Transcription (Real-time)
—
Standard model pricing via Workers AI
Powerful primitives, seamlessly integrated
Built on systems powering 20% of the Internet, RealtimeKit runs on the same infrastructure Cloudflare uses to build Cloudflare. Enterprise-grade reliability, security, and performance are standard.
Build without boundaries
Join thousands of developers who've eliminated infrastructure complexity and deployed globally with Cloudflare. Start building for free — no credit card required.
