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Tools for using SPARQL

 

Introduction

Any tool able to send http requests can connect to our SPARQL endpoint: https://data.europa.eu/euodp/sparqlep

However, some dedicated tools exist and facilitate interactions with a SPARQL endpoint.

SPARQL clients

For example:

  • Sesame Windows Client is a SPARQL client featuring a graphical user interface running on Microsoft Windows.
  • Twinkle is a cross-platform Java application offering a user interface to perform SPARQL queries on remote endpoints.

Generic http clients

As the SPARQL endpoint can be called by any http client able to perform a GET or POST query, you can use any tool mentioned in Tools for using REST API.

See Sample SPARQL queries for concrete examples.

Programming languages and SPARQL libraries

Most programming languages can be used to query the API as long as there is a compatible HTTP connection component.

However, some libraries exist to connect to SPARQL endpoints, such as:

  • Java
    • Jena is an Apache project. It is an open source Java framework for building semantic web and linked data applications.
    • Eclipse RDF4J (formerly OpenRDF Sesame) offers a Java API to handle and query RDF data.
  • C
    • Redland is a set of C libraries providing RDF and SPARQL support.
  • JavaScript
    • Hercules proposes a JavaScript library to query remote the SPARQL endpoint. It allows building rich web applications using information from the EU ODP.
  • PHP
    • EASYRDF is a PHP library to ease the use of SPARQL queries in your PHP application.
  • Python
    • RDFLib proposes a set of python libraries to incorporate RDF data into a python application.

For more generic libraries to use the SPARQL endpoint as a REST API, see Tools for using REST API.