On 10/1/10 8:08 AM, Richard Cyganiak wrote:
Yesterday I pulled a list of all SPARQL endpoints in the LOD Cloud
diagram from the CKAN API. There are 141. After removing 24 that were
offline, timed out or otherwise inaccessible, I had a list of 117 that
produced valid responses to a simple SPARQL query.
I then categorized them according to the server software used (by
looking at the “Server” HTTP header, or various other telltale signs
in the responses, or in a few cases at the site documentation).
Results are below.
The real news here is that we now have more than 100 live SPARQL
endpoints in the Cloud. I'm not going to attempt any further
interpretation of this data, but it should be useful for anyone who
needs SPARQL endpoints for testing their client against.
If you are aware of any SPARQL endpoints that are missing here, please
consider adding it to the relevant package in CKAN (or creating a new
package if necessary). As a fall-back, email me ;-)
Best,
Richard
Virtuoso
http://affymetrix.bio2rdf.org/sparql
http://chebi.bio2rdf.org/sparql
http://geneid.bio2rdf.org/sparql
http://go.bio2rdf.org/sparql
http://hgnc.bio2rdf.org/sparql
http://homologene.bio2rdf.org/sparql
http://cpd.bio2rdf.org/sparql
http://dr.bio2rdf.org/sparql
http://ec.bio2rdf.org/sparql
http://gl.bio2rdf.org/sparql
http://kegg.bio2rdf.org/sparql
http://rn.bio2rdf.org/sparql
http://mgi.bio2rdf.org/sparql
http://obo.bio2rdf.org/sparql
http://omim.bio2rdf.org/sparql
http://pdb.bio2rdf.org/sparql
http://pubmed.bio2rdf.org/sparql
http://reactome.bio2rdf.org/sparql
http://sgd.bio2rdf.org/sparql
http://uniprot.bio2rdf.org/sparql
http://unists.bio2rdf.org/sparql
http://services.data.gov/sparql
http://dbpedia.org/sparql
http://lsd.taxonconcept.org/sparql
http://rdf.farmbio.uu.se/chembl/sparql/
http://geo.linkeddata.es/sparql
http://lsd.taxonconcept.org/sparql
http://sonicbanana.cs.wright.edu:8890/sparql
http://linkedgeodata.org/sparql/
http://sw.unime.it:8890/sparql
http://en.openei.org/sparql
http://lsd.taxonconcept.org/sparql
http://harp.cs.wright.edu:8890/sparql
http://data.bib.uni-mannheim.de/sparql
http://linkeddata.uriburner.com/sparql
4store
http://acm.rkbexplorer.com/sparql/
http://budapest.rkbexplorer.com/sparql/
http://citeseer.rkbexplorer.com/sparql/
http://cordis.rkbexplorer.com/sparql/
http://courseware.rkbexplorer.com/sparql/
http://curriculum.rkbexplorer.com/sparql/
http://darmstadt.rkbexplorer.com/sparql/
http://dblp.rkbexplorer.com/sparql/
http://deepblue.rkbexplorer.com/sparql/
http://deploy.rkbexplorer.com/sparql/
http://dotac.rkbexplorer.com/sparql/
http://eprints.rkbexplorer.com/sparql/
http://era.rkbexplorer.com/sparql/
http://eurecom.rkbexplorer.com/sparql/
http://ft.rkbexplorer.com/sparql/
http://ibm.rkbexplorer.com/sparql/
http://ieee.rkbexplorer.com/sparql/
http://irit.rkbexplorer.com/sparql/
http://jisc.rkbexplorer.com/sparql/
http://kisti.rkbexplorer.com/sparql/
http://laas.rkbexplorer.com/sparql/
http://newcastle.rkbexplorer.com/sparql/
http://nsf.rkbexplorer.com/sparql/
http://oai.rkbexplorer.com/sparql/
http://os.rkbexplorer.com/sparql/
http://pisa.rkbexplorer.com/sparql/
http://rae2001.rkbexplorer.com/sparql/
http://resex.rkbexplorer.com/sparql/
http://risks.rkbexplorer.com/sparql/
http://roma.rkbexplorer.com/sparql/
http://southampton.rkbexplorer.com/sparql/
http://ulm.rkbexplorer.com/sparql/
http://unlocode.rkbexplorer.com/sparql/
http://wiki.rkbexplorer.com/sparql/
http://wordnet.rkbexplorer.com/sparql/
http://dbtune.org/classical/sparql/
http://eculture2.cs.vu.nl:5020/sparql/
Talis Platform
http://api.talis.com/stores/airports/services/sparql
http://api.talis.com/stores/bbc-backstage/services/sparql
http://api.talis.com/stores/bbc-backstage/services/sparql
http://api.talis.com/stores/bbc-wildlife/services/sparql
http://api.talis.com/stores/datagovuk/services/sparql
http://api.talis.com/stores/discogs
http://api.talis.com/stores/fanhubz/services/sparql
http://api.talis.com/stores/jgoodwin-genealogy/services/sparql
http://api.talis.com/stores/kwijibo-dev2/services/sparql
http://api.talis.com/stores/kwijibo-dev5/services/sparql
http://api.talis.com/stores/moseley/services/sparql
http://api.talis.com/stores/musicbrainz/services/sparql
http://api.talis.com/stores/openlibrary/services/sparql
http://api.talis.com/stores/pokedex/services/sparql
http://api.talis.com/stores/productdb/services/sparql
http://api.talis.com/stores/space/services/sparql
http://api.talis.com/stores/theviewfrom/services/sparql
http://services.data.gov.uk/business/sparql
http://services.data.gov.uk/education/sparql
http://services.data.gov.uk/patents/sparql
http://services.data.gov.uk/reference/sparql
http://services.data.gov.uk/research/sparql
http://services.data.gov.uk/statistics/sparql
http://services.data.gov.uk/transport/sparql
D2R Server
http://data.bibbase.org:2020/sparql
http://data.linkedct.org/sparql
http://data.linkedmdb.org/sparql
http://dblp.l3s.de/d2r/sparql
http://dbtune.org/musicbrainz/sparql
http://www4.wiwiss.fu-berlin.de/dblp/sparql
http://www4.wiwiss.fu-berlin.de/diseasome/sparql
http://www4.wiwiss.fu-berlin.de/drugbank/sparql
http://www4.wiwiss.fu-berlin.de/eurostat/sparql
http://www4.wiwiss.fu-berlin.de/factbook/sparql
http://www4.wiwiss.fu-berlin.de/gutendata/sparql
http://www4.wiwiss.fu-berlin.de/medicare/sparql
http://www4.wiwiss.fu-berlin.de/sider/sparql
http://www4.wiwiss.fu-berlin.de/stitch/sparql
Sesame
http://data.semanticweb.org/sparql
http://lab3.libris.kb.se/sparql
http://www.rdfabout.com/sparql
ARC2
http://cb.semsol.org/sparql
http://id.ndl.go.jp/auth/ndlsh/
RAP
http://revyu.com/sparql
Jena/Joseki
http://www.lotico.com:2020/lotico
Richard,
Also note that we have a DNS Service Discovery (DNS-SD) [1] instance for
auto-discovery of SPARQL endpoints (critical foundation of SPARQL-FED
and SPARQL virtualization in general). We'll keep that in sync with CKAN
also.
The following DNS-SD commands provide access to the data:
1. dns-sd -B _sparql._tcp sparql.openlinksw.com -- browse sparql
endpoint list
2. dns-sd -L dbpedia _sparql._tcp sparql.openlinksw.com -- lookup
information about a specific endpoint (*this command is a little flaky
right now, we are looking into the setup*) .
I've also copied the Bio2RDF folks in since I can tell at first glance
there are missing endpoints. Also, the massive Protein Database (which
has 13-14 Billion Triples is missing from the LOD cloud even though this
instance is live with a SPARQL endpoint).
Links:
1. http://www.dns-sd.org/ -- Home Page
2. http://www.floop.org.uk/eagle/discovering-sparql -- Floop post which
pretty much set this all in motion .
--
Regards,
Kingsley Idehen
President& CEO
OpenLink Software
Web: http://www.openlinksw.com
Weblog: http://www.openlinksw.com/blog/~kidehen
Twitter/Identi.ca: kidehen
