Updated September 7, 2023—We’re leaving this post up for anyone who might still have access to the Twitter APIs. The Twitter API’s free tier is now so limited that most of what we demonstrate in our Twitter chapter/lesson is longer available. Higher levels of paid access are too expensive for average users and students. The first paid tier ($100/month) provides basic capabilities and no streaming access (the free tier used to allow access to 1% of the daily live stream). The second paid tier gives more access and some streaming capability, but costs $5000/month and caps the total number of tweets at 1,000,000. Significant access to the live stream of tweets costs tens of thousands of dollars per month. There has been some discussion of an academic/research tier, but as of now, we have not seen any indication of when or if this will be available.