The Zeebe Node client is maintained by Josh Wulf. It can be used to create Node.js applications.
Workit Zeebe client
The Workit Zeebe client is maintained by Olivier Albertini. It allows you to run the same application code against Zeebe or the Camunda engine based on configuration settings.
Zeebe Elasticsearch client
The Zeebe Elasticsearch client is maintained by Olivier Albertini. It provides an API for querying Zeebe's Elasticsearch export.