After announcing last week that all developers would have to pay to access Twitter's API, CEO Elon Musk has walked that back a step. In a tweet yesterday, he announced that "responding to feedback, Twitter will enable a light, write-only API for bots providing good content that is free." 

Since August of 2020, Twitter has offered a "basic" free tier as part of its V2 API, designed for "those just getting started, building something for fun, for a good cause, and to learn or teach," the company wrote at the time.