Open Calais Blog

We're Getting Down to the Wire; Please Upgrade!

On August 31, 2015, we will be retiring the legacy Calais and will have a new API. Please upgrade as soon as possible! We have everything you need to upgrade on our Upgrade page. And, of course, we’re always here to answer your questions at

Legacy ID to PermID Mapping

Please see below for a collection of links to zip files containing mappings of legacy IDs to PermID URIs, in order to sync your implementation with PermID.

Our Weekly Plea: PLEASE UPGRADE!

We just wanted to take another opportunity to remind you to upgrade to the new API, in case you haven’t yet. All the details around upgrading can be found here. Upgrading has many advantages, such as access to enhanced metadata and enhanced through-put capabilities. Remember to upgrade BEFORE AUGUST 31, 2015 as the legacy service […]

Bringing order to information overload, intelligently

Our own Ofer Harari takes the time to sit down with Thomson Reuters’ Inside Finance & Risk and answer some of their questions on big data and offers solutions on how Thomson Reuters Intelligent Tagging can scale your business’s work with big data. The full article can be found here.

Sample Codes Available!

For your convenience, we offer the below link to code samples in Java, .NET, PHP, Python, and Javascript! Enjoy!

A Reminder to Upgrade

Last week, we posted of the need to upgrade to the new API, as our legacy service will be retired AUGUST 31, 2015. As such, we urge you at your earliest convenience to visit our Upgrade page and point your solutions to our new API. Thank you.

Please Upgrade!

As we have conveyed to you throughout the past couple of months both on this blog and via email, we have a new and improved Thomson Reuters Open Calais™ and our legacy service will be shutting down AUGUST 31, 2015. If you have not already done so, please consider upgrading to the new API as […]

Thomson Reuters Intelligent Tagging™ Featured in Exchange Magazine!

In a piece in Thomson Reuters’ Exchange magazine, our own Ofer Harari spells out the virtues of using Thomson Reuters Intelligent Tagging™ to bring order to the masses of unstructured data on which your company is sitting. This is a great high-level view of how Thomson Reuters Intelligent Tagging™ works to tag your unstructured text […]