I've created an XF custom user field for members to post their Mastodon account links to so they can use their XF profile page to 'verify' their Mastodon profile links. The user field is straight-forward.
The problem I'm running into is getting the Mastodon site to successfully read the XF...
Adds a connected account provider for XenForo 2 that allows OAuth 2 integration with an Mastodon instance.
Installing
Install the add-on by extracting the contents of the upload folder to the root of your XenForo 2 installation.
Visit ACP and click install on Mastodon integration
Then...