Real-Time Messaging. Secured Before It Reaches Your App.
Notifications, AI chat, presence, and push - with broker-level access control baked in. Not bolted on.
What will you build?
Drop-in SDKs for the most common real-time features
Why Developers Choose CloudSignal
Reliability, offline, and access control - built into the protocol.
Native QoS
Delivery guarantees at the protocol level - fire-and-forget, at-least-once, exactly-once. No retry SDK needed.
Native Offline Queuing
Clients disconnect? Messages queue automatically and deliver on reconnect. No extra infrastructure.
Broker-Level ACL
Access control enforced before messages reach your app. Not in middleware. Not in your code.
Open Protocol
MQTT is an ISO standard. Your code works with any broker. No proprietary SDK lock-in.
Built for AI Agents
Lightweight binary protocol, persistent connections, topic-based routing - exactly what multi-agent systems need. We publish the open spec at mqtt-agent.dev: MCP and A2A semantics on MQTT 5.
Retained State
New subscribers get the latest value instantly. No extra API call. No state store to manage.
Security at the protocol level
Other platforms make you wire up auth yourself. CloudSignal plugs into your existing identity provider and enforces access rules at the broker - before a message ever reaches your app. No auth stack? We've got you covered.
- Bring your own auth - Supabase, Auth0, Clerk, Firebase, or any JWT provider
- No auth provider? Built-in token authentication with automatic expiry
- Dynamic ACL policy editor - set per-topic rules with identity variables
- Identity-bound topics - scope access by email, user_id, or agent_id
- TLS encryption on all connections
Set up in a prompt
Tell your coding agent what you need. It handles the rest.
Pricing built for scale
View pricing optionsUsage-based pricing
Granular control over your costs with per-minute billing or MAU pricing options.
Volume discounts
The more you use the platform, the lower the consumption rates become.
Cost optimization
Maximize your ROI with platform features designed to reduce consumption.
Start building real-time. Secured from day one.
Free tier. No credit card. Connect your first app in under 5 minutes.
Questions?