This page describes the capabilities of the KLEKSI SPARQL Endpoint and how data from KLEKSI is made available for exchange and reuse.

KLEKSI has been developed with a strong focus on interoperability, Linked Open Data (LOD), and sustainable data exchange. Therefore, the platform offers a SPARQL Endpoint that allows collection data to be accessed according to international standards.


SPARQL Endpoint
KLEKSI has a SPARQL Endpoint that allows collection data to be queried according to the principles of Linked Open Data.

This allows organizations, researchers, and developers to perform complex searches on datasets published within KLEKSI.

SPARQL is an international standard for querying RDF data and is used worldwide in, among others:

• Museums
• Heritage institutions
• Archives
• Libraries
• Research institutions
• Government organizations

What can you do with the SPARQL Endpoint?
Using SPARQL, data can be retrieved that is difficult or impossible to access via traditional search functions.

Examples are:

• Analyzing relationships between objects.
• Finding objects based on linked thesaurus terms.
• Combining data from different datasets.
• Searching Linked Open Data networks.
• Answering research questions with complex queries.
• Perform statistical analyses on collection data.

The SPARQL Endpoint makes it possible to access data semantically and reveal relationships that often remain hidden in traditional databases.


Linked Open Data
The SPARQL Endpoint forms an important part of the Linked Open Data functionality of KLEKSI.

This allows collection data to be linked to external sources such as:

• Wikidata
• Europeana
• RKDartists
• AAT (Art & Architecture Thesaurus)
• GTAA
• Geonames
• Other Linked Open Data sources

This increases the findability, reusability, and exchangeability of collection data.


No public REST API
KLEKSI deliberately does not offer a standard public REST API for accessing collection data.

Instead, KLEKSI uses open Linked Open Data standards and a SPARQL Endpoint. As a result, data is not only made accessible but also semantically enriched and linked to international terminologies and knowledge networks.

For organizations that want to publish their data sustainably, interoperably, and future-proof, this approach offers significant advantages over traditional API solutions.


Access to the SPARQL Endpoint
The SPARQL Endpoint is available to organizations that use the Linked Open Data functionalities of KLEKSI.

Depending on the configuration, data can:

• Be accessible to the public.
• Available only to authorized users.
• Be limited to specific datasets.

Contact the KLEKSI team if you would like more information about the possibilities in your area.


Integrations and data exchange
Although KLEKSI does not offer a standard public REST API, the platform does support extensive capabilities for data exchange via:

• Linked Open Data (LOD)
• RDF
• SPARQL
• Persistent Identifiers (PIDs)
• Thesauri and terminology networks
• International heritage standards

This allows collection data to be linked to external sources in a sustainable and standardized manner.

systems, research platforms and heritage networks.


Benefits of the KLEKSI approach
By using Linked Open Data and SPARQL, you benefit from:

• International standards for data exchange.
• Semantically enriched data.
• Links to external knowledge sources.
• Improved findability of collections.
• Sustainable and future-proof publication of data.
• Opportunities for advanced research and data analysis.

This approach aligns with the vision of the Digital Heritage Network (NDE) and international developments in the field of digital collection management.


Important
KLEKSI makes collection data available via Linked Open Data and a SPARQL Endpoint. This enables data to be sustainably published, linked, and reused in accordance with international standards.

For organizations that want to connect their collection data with other heritage institutions, research platforms, or knowledge networks, the SPARQL Endpoint is a powerful tool for data exchange and research.