Hi there...Has anyone had any experience integrating an Ably.io Realtime API into Node-Red?
Not sure what you mean by integrating but a quick search on their site reveals they have support for MQTT...
https://www.ably.io/documentation/mqtt
Node-red has first-class support for MQTT so in that case, you can definitely communicate with the platform.
I'm certain they will have rest or other web based APIs so I'm fairly certain you can achieve a level of integration.
Thanks very much, that's very helpful...
Apologies...I've never done any coding before but I'm trying to convert an Ably API feed to OSC.
MQTT looks like it could be the answer. 
MQTT is very easy, even for a novice to get working and thankfully very stable.
Hey,
I’ve worked with real-time APIs similar to Ably in Node-RED — it’s usually pretty straightforward using HTTP request or WebSocket nodes. You just need to set up your Ably API key and channels properly.
If you’re comparing options or looking for architecture ideas, this post on building an instant messaging app has some useful insights on integrating real-time APIs into existing systems.