see also: SPARQL
FWIW, MarkBaker doesn't think this list will get very big in the long run.
Currently Alive Endpoints returning SPARQL-results as XML
(alphabetical...)
AIFB
endpoint (let's avoid PoorMansHypertext and in-your-face URLs, please)
- status: alive
- comment: uses KAON2
- data exposed: AIFB portal content, people, publications, live export
BBC Backstage (HP Labs)
- status: unreachable
- comment: uses joseki 3
- data exposed: BBC schedule information for next week (all channels)
webform: http://doapspace.org/sparql
- status: alive
comment: This is a highly experimental TurboGears with rdflib triplestore (mysql) SPARQL endpoint.
- data exposed: Tens of thousands of DOAP (Description of a Project) profiles.
Doc/webform: http://www.govtrack.us/sparql.xpd
- status: alive
comment: uses SemWeb for .NET
- data exposed: U.S. congressmen, legislation, voting records, and (experimentally) info from the U.S. SEC including info on publicly traded companies
Gene Expression In-situ Images of fruitfly embryogenesis
webform: http://spade.lbl.gov:2021/snorql
doc: http://www.bioontology.org/wiki/index.php/OBD:SPARQL-InSitu
- status: alive
- comment: Microscopy images showing gene expression patterns during fruitfly embryogenesis, tied to an anatomical ontology
- data exposed: genes, expression events, annotations to classes in fly_anatomy ontology, JPEG images
Gene Ontology Database
webform: http://spade.lbl.gov:2020/snorql
doc: http://www.bioontology.org/wiki/index.php/OBD:SPARQL-GO
- status: alive
- comment: a D2RQ wrapper for the Gene Ontology Database (demo)
- data exposed: gene product annotations to GO processes, functions and subcellular components
IBM ATG (Advanced Technologies Group)
- status: alive
- comment: An RDF server front-ended by the Atom publishing protocol
- data exposed: Atom entries
OpenLink Virtuoso (Basic Live Demo Server)
Ajax based Visual Query Builder: http://demo.openlinksw.com/isparql/
tutorials: executing SPARQL over SQL from PHP and other general purpose functionality demos.
- status: alive
- comment: supports Semantic Bank's HTTP API for poplulating RDF Database
account URL: http://demo.openlinksw.com/ods/ to create your own experimental account for SPARQL querying
data exposed: Numerous e.g. <www2006_speakers>, <www2006_authors>, <semweb_bloggers> etc. You can also pass RDF Graph URIs on the fly or even route to other SPARQL Query Sevices.
- Named Graph Support: You can discover the different Graph URIs in the Quad Store via: SELECT DISTINCT ?g WHERE { graph ?g { ?s ?p ?o } } using the Web based SPARQL UI or Query Service Endpoints above.
OpenLink Data Spaces (Live Demo Server)
Ajax based Visual Query Builder: http://demo.openlinksw.com/isparql/
- status: alive
- comment: supports Semantic Bank's HTTP API for poplulating RDF Database
account URL: http://myopenlink.net:8890/ods/ to create your own experimental account for SPARQL querying
- data exposed: Weblog, Wiki, Photo Gallery, Discussion, Feed Subscriptions (RSS 1.1, RSS 2.0, Atom), Bookmarks, Contact Networks etc.. as instance data for SIOC, FOAF, and Atom OWL Ontologies.
D2R Server publishing the DBLP Bibliography Database (Freie Universität Berlin)
webform: http://www4.wiwiss.fu-berlin.de/dblp/snorql/ (Only Firefox)
doc: http://sites.wiwiss.fu-berlin.de/suhl/bizer/d2r-server/index.html
- status: alive
- comment: The DBLP database provides bibliographic information on major computer science journals and conference proceedings.
- data exposed: The database contains more than 800.000 articles and 400.000 authors. The complete RDF view on the database consists of approximately 10 million RDF triples.
D2R Server publishing Information about the Web-based Systems Group @ Freie Universität Berlin
webform: http://www4.wiwiss.fu-berlin.de/is-group/snorql/ (Only Firefox)
doc: http://sites.wiwiss.fu-berlin.de/suhl/bizer/d2r-server/index.html
- status: alive
- comment: Serves information about Web-based Systems Group @ Freie Universität Berlin.
- data exposed: Information about people, papers and projects.
Opera Community
- status: alive, model subject to change,
- comment: based on Redland
- data exposed: community portal content, updated weekly
Revyu
Welcome/Docs: http://revyu.com/sparql/welcome
- status: alive 2006-11-29
- data exposed: user reviews of any resources/things, plus user tags
SemanticWebSchool - Vienna
Website: http://sparql.semantic-web.at/
doc: [Sparqling 5 years of semantic web evolution http://ablvienna.wordpress.com/2007/05/23/sparqling-5-years-of-semantic-web-evolution/] (blog post)
- Status: alive
Comment : The SemanticWebSchool provides the latest information on issues about the SemanticWeb in form of it's d2r mapped press collection with glossary, wikilinks and so forth using the d2r-server and rss features.
- Language : english // german
SPARQLer
URL: general purpose SPARQL service: http://www.sparql.org/sparql
Form to use this service: http://www.sparql.org/sparql.html
- Status: alive
- data exposed: any
Sparqlette
- doc
- status: alive
- comment: many options
- data exposed: any
Wiki.Ontoworld.org
- status: alive since 03.07.2006, experimental
data exposed: data from http://wiki.ontoworld.org, synched via recent changes, ca ~30 seconds delay
W3C Spanish Office SPARQL Demo
- status: alive
- comment: page in Spanish
- data exposed: W3C Spanish Office Press Releases, W3C Press releases
dbpedia (Freie Universität Berlin, Universität Leipzig, OpenLink Software)
webform: http://dbpedia.org/snorql/ (Firefox/Safari/Opera)
- status: alive
- comment: dbpedia.org is a community effort to extract structured information from Wikipedia and to make this information available on the Web.
- data exposed: Resources that represent 1.6M Wikipedia articles, with multilingual titles and abstracts, thumbnail images, SKOS categories, and miscellaneous extracted data. Currently around 25 million triples.
DBTune (Centre for Digital Music, Queen Mary, University of London)
webform: http://purl.org/dbtune/snorql/
- status: alive
- comment: dbtune aims to gather and interlink music-related information.
data exposed: so far, this end-point exposes the Magnatune data set, using the Music Ontology.
World Factbook (Freie Universität Berlin)
- status: alive
data exposed: Country statistics from the CIA World Factbook
Project Gutenberg Metadata (Freie Universität Berlin)
- status: alive
data exposed: Data on authors and literary works from Project Gutenberg
Buggy Endpoints
Mindswap
URL: http://www.mindswap.org/cgi-bin/2003/pellet/pelletPost.cgi
- status: alive, but returns results embedded in HTML as a table element, even when requesting application/xml
- comment: uses Pellet ?
- data exposed: ?
URL: http://labs.intellidimension.com/uniprot/query2.rsp?&exec=Execute&q=
- status: returns not really a SPARQL HTTP binding response, but a webpage with embedded SPARQL result (as XMP-element)
- comment: uses RDF Gateway
- data exposed: ?
Dead Endpoints
- status: intermittent
- comments: based on Redland/Python
- data exposed: varies: FOAF, RSS, Atom/OWL, GTD
dead until I have a bit of admin time -- DannyAyers