We’ve heard from several of our developer partners that they’d like a bit more time to finish updating and testing their integrations to work with the new API rate limiting we announced back in July. For this reason, we’re delaying the production rollout of rate limits (for existing integrations only) until Monday, November 18, 2013.
Note that new API keys will be subject to rate limiting immediately. For more information on rate limits, see this article.
If you have any questions or concerns about rate limits or anything else related to the Evernote API, don’t hesitate to get in touch with us.