So I have built Entity Extractor for Rasa using Microsoft Recognizers Text for extracting common entities like dates, time, currency, age, email id, and others.
It’s just an alternative for Duckling since there some problems using Duckling as it requires one server running for entity extraction as well as it’s not available directly on the Windows system .
Check it out here: https://github.com/JiteshGaikwad/EntityExtractor
Please note that this entity extractor doesn’t call’s any cloud API, it works offline.
Hope it helps