RealtimeKit helps you build real-time video & voice AI applications. It handles the WebRTC and streaming infrastructure with near-zero latency network worldwide, and provides SDKs for seamless client-side integration.
RealtimeKit is a developer platform for building and scaling real-time applications - without the usual tradeoffs. Where most setups are complex, rigid, or compromise on performance, Realtime Kit offers both speed and flexibility.
Cloudflare’s RealtimeKit handles the low-level infrastructure - managing media transfer, networking logic, and exposing developer-friendly APIs for seamless builds. With UI Kit and ready-to-use tools, you can either start customizing quickly or opt for a barebone setup for full control.
01 | Developer-first
RealtimeKit speeds up the dev cycle significantly with developer-friendly stack and built-in infra. Cloudflare’s SFU and Anycast network connects users to the nearest of 335+ global locations to deliver near-zero latency globally.
02 | Comprehensive Product Suite
RealtimeKit’s components and Cloudflare’s entire suite of products allows you to build Realtime AI apps and more in one unified platform.
Create a meeting with built-in authentication to validate participant access and roles. Platform-ready SDKs automatically manage tracks, letting you move quickly to the UI layer. For a faster setup, use the UI Kit with pre-built components or build your own UI.
Authentication built-in
Pre-built components
Next, layer in media features with minimal config like recordings, SIP interconnect, noise cancellation, transcription and more
Flexible Recording Options
Watchparty
Bridge VOIP calls
Enhance Calls
Now, you can also create custom AI functionalities on top of your media streams. Connect to an LLM running directly on Cloudflare or use AI Gateway to integrate to popular providers.
Host an LLM
Build a Workflow
Add a protection layer
Connect to a provider
Sometimes, you will need to go back to the LLM, and re-evaluate the plan based on new variables, and we support that too.
Finally, get visibility into call quality with real-time analytics and logs. Track latency, packet loss and other key metrics through the dashboard or call stats APIs so you can debug faster and optimise confidently.
Realtime analytics
03 | Scale + Reliability
Latency is critical for realtime apps. Anything above ~100ms starts to feel sluggish.
RealtimeKit runs on Cloudflare’s global Anycast network, delivering sub ~50ms latency 95% of the time without the need for any complex infrastructure tuning.
04 | Top use cases
Cloudlflare's RealtimeKit provides a faster and more reliable way to develop and run real-time apps.
Build voice agents that feel real with ultra-low latency and clean audio for seamless user interaction.
Deliver lag-free livestreams with adaptive bitrate, and seamless viewer sync across network conditions
Automate note-taking, translations, and intelligent insights for seamless virtual meetings.
Empower creators for real-time content enhancement, audience interaction, automated moderation & multilingual accessibility
Stream interviewees' video feeds instantly, enabling multiple interviewers to watch, interact, and collaborate with ultra-low latency.
Enable educators to run immersive, live video lessons with real-time interactivity, enhancing student engagement and learning outcomes.