Scalable self-hosted real-time messaging and state sync platform
Zero-retention inference for frontier models
Stage
Established
Startup
Founded
2023
Not given
Based in
CY
MX
Pricing model
Open source
Freemium
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.
Pay as you go from $10. Monthly subscriptions: Run $19/month, Run Plus $99/month (5× allowance), Run Max $199/month (10× allowance). Model pricing per million tokens varies: qwen3.8-max $2.00 input/$6.00 output, claude-haiku-5-5 $0.10 input/$0.50 output, claude-sonnet-5 $2.00 input/$10.00 output, cl
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 guarantees with signed cryptographic receipts for every API call
OpenAI-compatible API endpoint
Web-based chat interface with encrypted conversations
Access to 15+ frontier models including Claude, Gemini, Qwen, DeepSeek
Python SDK and R package support
Receipts show token usage, cost, model, provider and retention basis
No data storage on offrec infrastructure
Models run on managed third-party providers
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
Every call returns a cryptographically signed receipt proving zero retention
No need to negotiate zero-retention terms with each provider individually
Unified access to frontier models from multiple labs via single API key
Offrec owns no infrastructure; models run on managed providers
Verifiable accountability through transparent receipt system
Centrifugo
offrec