2017-08-01 UTC
# 
sebsel Brid.gy has some kind of preview on the site. Seems like it's a POST request to https://brid.gy/publish/preview, with target https://brid.gy/publish/twitter, source your post URL, and then some Twitter API key. Don't know if you can incorporate that into the WP plugin, but maybe a more embeddable version might be a nice feature for Bridgy?