Thomas Thurner

Semantic Web driven tagging tool makes clean energy content searchable and findable!

New reegle API will tag online resources automatically – and suggest related content.

A new cost-free tagging tool is now available to anyone who provides online resources in the clean energy field. This API (application programming interface), developed by the Semantic Web Company, will automatically tag documents and web content that cover renewable energy, energy efficiency and climate-relevant topics according to the well maintained Reegle’s Clean Energy and Climate Change Thesaurus. 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 tagging, the 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 API content pool can increase the outreach of your documents hugely,” recommends Denise Recheis, expert in knowledge management at reegle.

Try out service

The tool is available at, where you can try out the API 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.

Free API key

On this site, web developers can register to get a free API 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. The API 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. For further information about the reegle tagging API Reeep’s Thesaurus and Knowledge Manager Denise Recheis is available.

Jana Herwig

Triplify V0.3 released!

It was the result of hard work and dedication: Early in the wee hours, precisely at 3:53 am, Sören Auer from AKSW (Leipzig University) announced the release of a new version of Triplify, the web application plugin that exposes structured data from relational databases as RDF, Linked Data and JSON.

With Triplify, AKSW want to overcome the present dilemma of the Semantic Web: Even though significant research and development efforts are undertaken, the growth of semantic representations is still outpaced by the growth of traditional web pages – to an extent that one might be skeptical about the potential success of the Semantic Web.

Within the Semantic Web initiative a number of standards and techniques were developed supporting the encoding and exchange of structured information and knowledge on the Web. And that’s the core of the Triplify approach – exploiting structured relational representations behind Web applications for creating a critical mass of semantic representations on the Web. Read more on our homepage.

Related pages:
i-Semantics Triplification Challenge