pubsubhubbub topic
laminas-feed
Consume and generate Atom and RSS feeds, and interact with Pubsubhubbub.
wordpress-pubsubhubbub
WebSub/PubSubHubbub for WordPress
php-publisher
A PubSubHubbub publisher module for PHP.
php-subscriber
A PubSubHubbub subscriber module for PHP
go-ostatus
An OStatus library written in Go
websub-server
Go library for the WebSub protocol, allowing you to run your own scalable WebSub Hub
websub.rocks
Test suite and debug utilities for W3C WebSub
Switchboard
a WebSub / PubSubHubbub 0.4 hub
yt-to-discord
Utilize Discord's webhooks to receive new video notifications via YouTube's PubSubHubbub push notifications.