Scalable self-hosted real-time messaging and state sync platform
Self-operated inference API for open-weight LLMs and video models
Stage
Established
Not given
Founded
2023
Not given
Based in
CY
US
Pricing model
Open source
Paid
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.
Standard (pay-as-you-go, under $1K/month): List price with unified API, cost monitoring, usage limits, unlimited seats. Growth ($1K-$15K/month): 20% volume discount, quarterly billing, priority support, SLA. Scale ($15K-$40K/month): 30% volume discount, dedicated support, DPA. Custom ($40K+/month):
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
Zero-retention privacy policy
Smart routing optimization
Hardware adaptation per request
Inference engine kernel optimization
KV cache layer for token reuse
Unified API across model catalog
Cost and usage monitoring
Volume-based tiered discounting
Data Processing Agreement available
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
Single API key for access to leading models like DeepSeek, Kimi, and Qwen
Enterprise uptime and service guarantees without separate integrations
Zero-retention privacy with US governance and DPA support
Cost-efficiency through kernel optimization adopted by frontier labs
No integration rewrite required for teams already using OpenAI-compatible APIs
Centrifugo
TokenGO