In the coming weeks we will release version 1.1 of the Twitter API. To help you plan ahead, we’re announcing these changes now, before the new version of the API is available. Changes will include:
- required authentication on every API endpoint
- a new per-endpoint rate-limiting methodology
- changes to our Developer Rules of the Road, especially around applications that are traditional Twitter clients.
Most individual API endpoints will be rate limited at 60 calls per hour per-endpoint. Based on analysis of current use of our API, this rate limit will be well above the needs of most applications built against the Twitter API, while protecting our systems from abusive applications.