TOAST is an online implementation of the ASPIC+ framework for structured argumentation which was developed in 2012. It supports various acceptability semantics, is accessible via a visual web interface and also features an API, which allows one to send queries to TOAST from their own applications and receive results in JSON format.
At the University of Luxembourg, Jérémie Dauphin has worked with the software to reason with arguments from the philosophical literature. However, the formalism was found not to be expressive enough for this application, so he is now working on an extension of the formal framework. An extension of the implementation might come in the future.