yes.
ActivityPub
ASPE
Discourse
DNS
forem
Forgejo
Friendica
Gitea
Github
Gitlab
Hackernews
IRC
kbin
Keybase
Lemmy
Liberapay
Lichess
Lobste.rs
Mastodon
Matrix
OpenCollective
OpenPGP
Owncast
Peertube
Pixelfed
Pleroma
Reddit
StackExchange
Telegram
Twitter
WriteFreely
XMPP
ps: docs.keyoxide.org/service-providers/twitter/