Build a feature-rich marketplace chat service with Ably’s APIs and SDKs

No more disconnects, disappearing chats, or poor customer experiences. Instead, boost revenue while delivering outstanding support with Ably’s marketplace live chat APIs and SDKs.


3,000+ events per year with enhanced livestream chat and interactive, realtime features.

1 million live chats supported across 86,000 businesses and their customers.

A leading live streaming platform enabling millions of fans to chat and react together in realtime.

Live chat that your marketplace customers enjoy using

Are flaky live chats coming between you and your customers? If so, you might recognize some of these challenges:

  • Frequent outages: One bad experience is enough to stop 51% of customers from returning - massively impacting revenue.

  • Poor agent allocation: Agents are too often left idle waiting for chats to be assigned and loaded - leaving customers frustrated and KPIs missed.

  • Spiraling costs: The time and resources required to fix issues and keep the system running impacts your revenue and distracts from your real goals.

Without happy users, you can’t hope to reduce costs and hit your KPIs. With Ably, you can.

live chat for marketplaces

Ably has built the reliable chat infrastructure so you don’t have to

Our fully-managed realtime infrastructure is highly redundant and constantly available. Through active traffic management and auto-scaling, we take the stress out of delivering seamless live chat.

Get the most out of your agents

With Ably

Customize Ably to easily see which agents are online and triage up to seven conversations per agent - reducing costs to an absolute minimum.

Without Ably

Agents and customers are both left waiting for the chat to connect, causing customer frustration and wasted budget.

Get the right messages in the right order

With Ably

Boost brand reputation through our guaranteed delivery of a consistent user experience.

Without Ably

Messages appear at the wrong time, in the wrong order, causing confusion and ruining the user experience.

Reduce the time-to-market of your live chat

With Ably

No more trade-offs: Get low costs, high quality, and a faster rollout.

Without Ably

Constant compromises between quality and time-to-market.

Reduce costly downtime

With Ably

Ably’s fault-tolerant infrastructure offers a 5 9s SLA guarantee and no single point of failure. No more outages, period.

Without Ably

Customer chat can break at any time and is particularly vulnerable during traffic surges.

Simple integrations, no matter the stack

With Ably

Utilize our managed integrations to connect Ably to any part of your stack, so you can quickly build and easily maintain your realtime chat experience.

Without Ably

Integrations are slow and painstaking to build, requiring manual debugging and maintenance.

Powerful realtime chat features that your customers can rely on

Pub/sub messaging

We ensure delivery of the right chat message to the right client in realtime. Distribute events to millions of subscribers over channels that support multiplexing with Ably’s feature-rich pub/sub APIs.

Stream resume

Deliver a seamless web or in-app chat experience with messages guaranteed to arrive in the correct order. On disconnect we keep state and retry connection every 15 seconds for two minutes.

Triage messages

Customize your marketplace chat, allowing agents to view, manage, and reply to incoming messages from multiple channels like email, Facebook, or website - from a single unified inbox.


Presence provides the functionality to identify and communicate about individual behavior in realtime. Use it to build rich chat features including typing indicators, online avatar stacks, and last seen information.

Message interactions

Enhance the realtime chat experience with emoji reactions and other feature-rich experiences.

Agent allocation

Allocate customers to agents in realtime and monitor capacity of up to seven concurrent conversations. No more customers left waiting while costs add up and frustration builds.

Group chat features

Customize your marketplace live chat for your users’ needs

A feature-rich realtime experience is the key to delighting users and hitting your KPIs. Our SDKs and APIs offer the flexible and customizable building blocks you need to offer:

  • Realtime customer-to-agent allocation

  • Triage messages into one unified inbox

  • Custom role creation and management

  • Emoji reactions

  • Live presence indicators

  • Full message history and rewind

  • Push notifications

  • Typing indicators

Chat marchitecture diagram

Build engaging chat experiences...not the infrastructure to power them.

Say goodbye to outages, customer complaints, and scalability issues. We handle everything from day one, meaning you can guarantee:

Quality of service: Provide a seamless experience for all of your users, regardless of where they are in the world. Our realtime infrastructure delivers unique data integrity guarantees with connection state recovery even over unreliable networks.

Global availability: Surge capacity and five 9s uptime mean your live chat works seamlessly, however many users there are.

Fully customizable: Build the live chat experience you want, and enhance with additional realtime features - exactly how your business needs it.

Designed for affordability at scale: With pricing built for scale and features created intentionally to optimise usage, Ably not only enables you to make best use of your budget but also enjoy greater flexibility, faster build times and a quicker ROI.


Ably is one of the key technologies that underpins our business. Its realtime experience infrastructure seamlessly supports HubSpot's entire realtime needs, helping us to meet our technical, business, and product development requirements. With Ably, we have innovated and taken new products to market much faster while significantly reducing our operational engineering overhead.

Max FreiertProduct Group Lead, HubSpot