The best alternatives to TelstraDev are Airbnb, API List, and Spinneret. If these 3 options don't work for you, we've listed a few more alternatives below.
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Spinneret makes it super easy to record web workflows or "tracks," then re-run them locally or in the cloud. - Programmatically do stuff on the web (click buttons, fill out forms, extract text from pages) with dynamic inputs via your track's API endpoint.
Knowledge Base web-widget that allows your clients to find the information they need in the most efficient manner. It has a powerful JS library that will show appropriate articles based on the user's current web page or situation (inactivity,.)