Jess Weatherbed, writing at The Verge:
Twitter will no longer provide free access to the Twitter API from February 9th. As announced by the official Twitter Developer account late Wednesday night, Elon Musk’s social media hobby will stop supporting free access to the Twitter API and will instead provide a “paid basic tier.” Twitter hasn’t provided any information regarding pricing, but said that it will provide “more details on what you can expect next week.”
“Over the years, hundreds of millions of people have sent over a trillion Tweets, with billions more every week,” said the Twitter Developer account. “Twitter data are among the world’s most powerful data sets. We’re committed to enabling fast & comprehensive access so you can continue to build with us.”
This probably means the end of this site auto-posting things to Twitter, so now is probably good time to get subscribed in other ways: