Scalable self-hosted real-time messaging and state sync platform
Live cloud GPU price comparison across marketplaces and providers
Stage
Established
Not given
Founded
2023
Not given
Based in
CY
Not given
Pricing model
Open source
Free
Pricing
Open source version is free. Centrifugo PRO available with flat licensing (no per-connection or per-message fees) and requires contacting sales for a quote.
Not given
Key features
WebSocket, HTTP-streaming, SSE, WebTransport, and gRPC transports
Channel history and message recovery
Flexible authentication and authorization
State synchronization with transactional consistency
Connection event proxying to backend
Online presence detection for users
Efficient binary Protobuf protocol
Resumable streams and transport fallback for AI applications
Live price polling from provider APIs
Sortable comparison table with 286 prices across 82 GPU models
Price normalization to per GPU-hour
Tracks 61 providers
Spot and on-demand pricing comparison
Free JSON API
Android app available
Real-time timestamp tracking
Support for consumer and datacenter GPU cards
What makes it different
Set up once and works forever with no ongoing configuration needed
Handles millions of concurrent connections with minimal hardware
Self-hosted so messages and data never leave your infrastructure
No per-connection or per-message billing
Works in production at scale with proven reliability
Real-time pricing data from provider APIs instead of stale spreadsheets
Unified table comparing all GPU rental options instead of checking 15+ pricing pages
Shows actual price spread for same GPU across different clouds
Transparent about data availability and updates timestamps
Centrifugo
GPUHour