This is another reminder that we will be shutting down the legacy Open Calais API on September 30, 2015. If you have not already done so, please take the necessary steps to upgrade to the new service today.
Upgrading to the new service has many advantages, such as access to a faster and more stable service which provides enhanced through-put and metadata capabilities.
The new API is not fully backward compatible with the legacy API, so upgrading to the new API will require a few manual changes. However, in our upgrade guide, you will find we have defined a workflow to make the transition as smooth as possible.
Thank you for being part of the Open Calais community.