validator for AS2 URLs and uploaded data
Copyright © 2016 World Wide Web Consortium, (Massachusetts Institute of Technology, European Research Consortium for Informatics and Mathematics, Keio University, Beihang). All Rights Reserved. This work is distributed under the W3C® Software License in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
There is a live version available so you should use that if you can.
If you want to run your own, there is a Docker container:
https://hub.docker.com/r/w3csocial/activitystreams-validator/
If you just want to run from your own server, you should be able to do this in your working directory:
npm install
npm start