Build with us during the beta
Castio is in open beta. Cloudflare RealtimeKit -- the underlying real-time video infrastructure -- is also in beta. That means beta testers can run real meetings at zero cost while both platforms mature.
What you get as a beta tester
Zero cost during beta
While both Castio and Cloudflare RealtimeKit are in beta, there are no license fees and no per-minute charges. You only pay for standard Cloudflare usage on your account (which is minimal).
Direct access to the team
Beta testers get hands-on support. We work directly with you to get your deployment running and resolve issues in real time.
Shape the product
Your feedback directly influences what gets built. Beta testers have a real voice in the product roadmap and feature prioritization.
Real meetings, real platform
This isn't a demo or sandbox. You get a full deployment on your own Cloudflare account with video calls, recording, AI transcription, scheduling, and white-label branding.
Join the beta
Get your own Castio deployment at zero cost.
You're in!
Check your email for confirmation. If you don't see it within a few minutes, check your spam folder.
We'll be in touch soon to get you set up.
Everything included in the beta
Beta testers get the full platform. No feature gates, no artificial limits.
Video & audio meetings
Video calls, audio rooms, webinars, and livestreaming with scheduling and permanent rooms.
AI transcription & summaries
Whisper-powered transcription and AI meeting summaries, built in.
Recording
Composite recording stored in your own R2 bucket. No per-minute recording fees.
Full white-label branding
Your domain, logo, and brand colors. Every deployment is white-label from day one.
Analytics & diagnostics
Usage dashboards, quality metrics, and meeting investigation tools.
REST API & webhooks
Integrate with your existing systems. Create meetings, manage users, and receive events programmatically.
Beta FAQ
Why is it free during beta?
What do I need to get started?
How long will the beta last?
Is the beta suitable for production use?
Get in early. Shape the product.
The best time to join is now -- while both platforms are in beta and everything is free. Beta testers get direct access to the team and a real voice in what gets built.