niche · 0.0 capability

RDF

Score 18.7 / 100 8 providers +12 via APIs 20 APIs Search apis.io →

Providers using this tag (8)

Ranked by API Evangelist rating — Exemplar and Strong are expanded by default.

Strong 2 Solid coverage with minor gaps

InruptCompanySolidPersonal Data StoresDecentralized Identity1 API65.6 Amazon NeptuneDatabaseGraph DatabaseGremlinNeptune9 APIs62.6

Developing 1 Usable, with meaningful gaps to close

Apache JenaJavaLinked DataOWLOntology1 API40.4

Thin 3 Limited public surface area

Schema.orgSchema.orgStructured DataLinked DataJSON-LD4 APIs31.7 Eclipse RDF4JEclipse FoundationJavaLinked DataOpen-Source1 API29.6 SPARQLLinked DataQuery LanguageSemantic Web2 APIs26.2

Emerging 2 Early or largely undocumented

DBpediaLinked DataKnowledge GraphSPARQLSemantic Web6 APIs21.1 RDFJSON-LDKnowledge GraphLinked DataOntology14.9

APIs with this tag (20)

Ranked by the provider's API Evangelist rating — the Kin Score is scored per provider, not per API, so every API of a provider shares its band. How the rating works →

Strong 4 Solid coverage with minor gaps

Inrupt Pod Storage API (Solid Protocol)The ESS Pod Storage Service implements the Solid Protocol over HTTP — LDP-style container and resource CRUD...65.6 Linked Data InterfaceThe Wikidata Linked Data Interface provides individual entity data via content negotiation at http://www.wi...59.6 EU Open Data Portal SPARQL APIThe OpenLink Virtuoso SPARQL endpoint for data.europa.eu. Every harvested dataset is stored in its own name...54.8 data.world SPARQL Query APIExecute SPARQL queries via GET or POST against datasets. Supports multiple output formats for semantic data...54.3

Developing 3 Usable, with meaningful gaps to close

OpenMetadata RDF APIAPIs for RDF and SPARQL operations47.6 Linked Open Aalto Data (SPARQL)Aalto's open data published as Linked Data — courses, people, publications, places, projects, organisation ...43.5 Apache Jena Java APIThe Jena Java API provides programmatic access to RDF model creation, SPARQL query execution, OWL reasoning...40.4

Thin 7 Limited public surface area

Reading lists (Talis Aspire tenant)Talis Aspire reading lists, operated as a Liverpool tenant at liverpool.rl.talis.com with the canonical ins...38.8 BRICK OntologyThe BRICK ontology v1.4.4 defines a standardized vocabulary of building system concepts, relationships, and...38.4 Schema.org VocabularySchema.org is a collaborative, community-driven vocabulary for structured data on the internet. It provides...31.7 OpenCitations SPARQL EndpointSPARQL endpoints for structured queries against the OpenCitations Meta and Index datasets. Provides access ...28.3 RDF and SPARQLThe Resource Description Framework (RDF) is a W3C standard for representing information in the web. RDF 1.2...28.1 SPARQL Protocol APIStandard SPARQL 1.1 Protocol HTTP endpoints for executing queries and updates against RDF datasets, plus th...26.2 UniProt SPARQL EndpointA standards-compliant SPARQL 1.1 endpoint exposing the full UniProt knowledge graph as RDF. The current rel...26.2

Emerging 5 Early or largely undocumented

DBpedia DatabusData cataloging, versioning, and publishing platform for DBpedia and community datasets. Exposes a SPARQL A...21.1 DBpedia Linked DataHTTP Linked Data access to DBpedia resources via content negotiation. Dereference any DBpedia entity URI (h...21.1 DBpedia LiveReal-time SPARQL endpoint and Linked Data access over continuously updated DBpedia data derived from near-r...21.1 DBpedia SPARQL EndpointPublic SPARQL 1.1 query endpoint backed by OpenLink Virtuoso over the DBpedia knowledge graph derived from ...21.1 Amazon Web Services Rdf APIThe Rdf API from Amazon Web Services — 1 operation(s) for rdf.17.4

Minimal 1 Almost no public developer surface

Open Data Albania SPARQL endpointSPARQL query endpoint for the linked-data / DCAT-AP graph powering the portal.5.3

Companies reaching this through an API (12)

These companies publish an API, specification or operation carrying “RDF” but do not classify their business under it. Listed unranked and kept out of the count above, because one tagged operation is not a statement about what a company does.

Aalto University Amazon Web Services BRICK Schema data.world EU Open Data Portal OpenCitations opendata.gov.al (Open Data Albania) OpenMetadata UniProt University of Liverpool W3C Wikidata

Score breakdown

Frequency

40.5

log-scaled weighted occurrences

Breadth

0.2

spread across providers

Quality lift

41.4

mean composite of providers using it

Cohesion

1.5

strength of nearest seed neighbor

Where this tag comes from

Api tag20

Provider tag8

Openapi tag2

Openapi op tag14

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find_tagsBrowse and filter every tag in the catalog.
get_cohortThis tag as a scored cohort — every provider carrying it, with scores.
cohort_statsPRO — the distribution across this tag: mean, median, band split, adoption rates.
cohort_rankingsPRO — the leaderboard, on composite AND agent-readiness axes.
apis_io_searchSTART HERE — APIs, providers and tags for one query, each with its total.
resolveTurn a domain, URL or GitHub org into the provider it belongs to.
find_cohortsEvery scored population of providers in the catalog.

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The distribution (Pro)

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RDF