New reegle Tagging API makes clean energy content searchable and findable

18-10-2012, Vienna, Austria

A new cost-free reegle Tagging API is now available to anyone who provides online resources in the clean energy field.  This API (application programming interface) will automatically tag documents and web content that cover renewable energy, energy efficiency and climate-relevant topics.  It can also suggest related documents from the growing pool of content that has already been indexed using the tool.

“Tagging” means that when integrated into a website, this API will automatically scan the site’s content and identify specific terms, concepts and geographic mentions and then apply tags to each so all resources connected with the site are searchable online. 

“By automating the tagging process, we can help ensure that content is classified in a consistent way across the entire sector, based on our Clean Energy Thesaurus” notes Florian Bauer, Operations & IT Director of REEEP. “This will help make major depositories of existing information open and accessible, and help promote clean, low-carbon development in the process.”

In addition to the tagging process itself, the reegle Tagging API can also make suggestions for related reading from the web resources already indexed, thus enriching the content of any website.  “Sharing your own indexed resources with the content pool can increase the outreach of your documents hugely,” recommends Denise Recheis, expert in knowledge management at reegle. 

The reegle Tagging API is available at, where you can also try out its functionality on the spot. Simply cut and paste a block of text, and a demonstration will show all of the concepts, terms and categories that the tool automatically generates.  On this site, web developers can register to get a free key for each project, with no limit on the number of keys.  When logged in, the dashboard includes a request builder to help developers to build the necessary code. 

The service is available in five different languages:  English, French, Spanish, Portuguese and German.  It returns the formats RDF/XML and JSON.   The reegle tagging API project is a collaborative effort with NREL (OpenEI), weADAPT and IDS (eldis), and was made possible by support from the CDKN Innovation Fund.

reegle is a leading clean energy information portal operated by REEEP (Renewable Energy and Energy Efficiency Partnership) and REN21.  It offers a range of free services including country energy profiles created from six different linked sources and an online thesaurus of clean energy and climate-related terms.

If you’d like more information about the reegle Tagging API or have specific questions, please contact our Denise Recheis, our Thesaurus and Knowledge Manager.