This plugin hasn’t been tested with the latest 3 major releases of WordPress. It may no longer be maintained or supported and may have compatibility issues when used with more recent versions of WordPress.

Open Calais


Send your post content to Refinitiv’s Open Calais Intelligent Tagging API to get suggested tags you can use in the CMS.


This plugin relies on the transmission of data to a third party service (Refinitiv), including post content stored in WordPress as well as the API token you’ve generated as part of the service registration. Specifically, this data is transmitted when a WordPress user with appropriate capabilities (default manage_categories) clicks on the “Suggested tags from Open Calais™” link in the post tags meta box. The post content that is sent is determined by the state of the post content on last post update.

Please review Refinitiv’s service documentation, terms of use and privacy policy before activating this plugin.

Service Documentation:
Open Calais Terms of Service:
Terms of Use:
Privacy Policy:


Before installation, you will need to register with Open Calais to get a free API key:

After activating Open Calais on the Plugins page, you can configure it by accessing the Open Calais options page under the Settings submenu.

Here, you can input the API key you’ve received as well as decide if you want Open Calais to return only tags that exist in your CMS, or if you’d like to receive suggestions for new tags.


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Contributors & Developers

“Open Calais” is open source software. The following people have contributed to this plugin.


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