About Ably
Ably is a realtime platform designed to power scalable, reliable live experiences for developers building chat, dashboards, notifications, and collaborations. It serves teams and organizations needing low-latency messaging and streaming APIs, with a serverless platform to manage the full lifecycle of real-time data.

Key Features
Core capabilities across Ably’s realtime stack include scalable APIs, reliable delivery guarantees, and cross-platform SDK support:
AblyPub/Sub
Flexible APIs and message guarantees for building realtime interactive experiences at scale.
AblyChat
APIs optimized for high-volume chat with simple integration.
AblySpaces
Tools to create collaborative environments with purpose-built APIs.
AblyLiveSync
Reliable database-to-client synchronization that scales to millions of clients.
Summary
The primary value lies in delivering a unified realtime stack with consistent APIs, broad SDK support, and managed lifecycle capabilities, enabling developers to ship features such as chat, dashboards, and collaboration with lower integration effort and operational risk.
Pricing
View pricingFree
$0 / monthly
- 200 concurrent connections
- 500 messages / second
- 6M messages / month
- Community & email support (best effort)
- No commitment
Standard
$29 / monthly
- 10k concurrent channels
- 10k concurrent connections
- 2.5k messages / second
- 1 day email support SLA
- Uptime SLO
Pro
$399 / monthly
- 50k concurrent channels
- 50k concurrent connections
- 10k messages / second
- 4 hour email support SLA
- Datadog (lite)
- Uptime SLO
Enterprise
Custom / custom
- Unlimited concurrent channels
- Unlimited connections
- Unlimited messages / second
- 24/7 mission critical support
- 99.999% uptime SLAs
- Committed use discounts
- Datadog
- CNAME, SSO, & more