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Semantic Web

Score 15.5 / 100 12 providers +5 via APIs 9 APIs Search apis.io →

Providers using this tag (12)

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

Strong 1 Solid coverage with minor gaps
WikidataKnowledge GraphLinked DataOpen Data1 API59.6
Developing 1 Usable, with meaningful gaps to close
Apache JenaJavaLinked DataOWLOntology1 API40.4
Thin 6 Limited public surface area
Golden RecursionCompanyKnowledge GraphData EnrichmentEntity Data1 API39.1BRICK SchemaBuilding Information ModelingBIMSmart BuildingsOntology2 APIs38.4ConceptNetKnowledge GraphNLPCommon Sense1 API36.1Eclipse RDF4JEclipse FoundationJavaLinked DataOpen-Source1 API29.6StardogKnowledge GraphGraph DatabaseSPARQL1 API26.9SPARQLLinked DataQuery LanguageRDF2 APIs26.2
Emerging 2 Early or largely undocumented
DBpediaLinked DataKnowledge GraphSPARQL6 APIs21.1RDFJSON-LDKnowledge GraphLinked DataOntology14.9
Minimal 2 Almost no public developer surface
HTMLHTMLLiving StandardMarkup Language6.4HTML5FrontendHTML5Living StandardMarkup Language6.4

APIs with this tag (9)

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 →

Exemplar 1 Complete, well-documented, and agent-ready
Microsoft Azure JSON-LD ContextJSON-LD context definitions for Microsoft Azure resource types, providing semantic annotations and linked d...74.9
Strong 1 Solid coverage with minor gaps
data.world SPARQL Query APIExecute SPARQL queries via GET or POST against datasets. Supports multiple output formats for semantic data...54.3
Thin 5 Limited public surface area
BRICK OntologyThe BRICK ontology v1.4.4 defines a standardized vocabulary of building system concepts, relationships, and...38.4Maastricht University Institute of Data Science (Open Source)The Institute of Data Science maintains an active public GitHub organization (220 public repositories) with...37.4JSON-LDJSON-LD (JSON for Linking Data) is a W3C Recommendation for encoding linked data using JSON. It provides a ...28.1RDF and SPARQLThe Resource Description Framework (RDF) is a W3C standard for representing information in the web. RDF 1.2...28.1UniProt SPARQL EndpointA standards-compliant SPARQL 1.1 endpoint exposing the full UniProt knowledge graph as RDF. The current rel...26.2
Emerging 2 Early or largely undocumented
DBpedia Linked DataHTTP Linked Data access to DBpedia resources via content negotiation. Dereference any DBpedia entity URI (h...21.1DBpedia SPARQL EndpointPublic SPARQL 1.1 query endpoint backed by OpenLink Virtuoso over the DBpedia knowledge graph derived from ...21.1

Companies reaching this through an API (5)

These companies publish an API, specification or operation carrying “Semantic Web” 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.

data.world Maastricht University Microsoft Azure UniProt W3C

Score breakdown

Frequency
35.6
log-scaled weighted occurrences
Breadth
0.3
spread across providers
Quality lift
32.5
mean composite of providers using it
Cohesion
0.0
strength of nearest seed neighbor

Related tags

SPARQL 11 co-occurrences RDF 10 co-occurrences Linked Data 10 co-occurrences W3C 5 co-occurrences Knowledge Graph 7 co-occurrences Query 5 co-occurrences Open Data 5 co-occurrences

Where this tag comes from

Provider tag12
Api tag9

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Tools for tags

7 MCP tools reach this
  • 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.
All 92 tools →

Call it yourself

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This tag 
curl "https://apis.io/api/v1/tags/semantic-web"
All tags 
curl "https://apis.io/api/v1/tags?limit=25"
As a scored cohort 
curl "https://apis.io/api/v1/cohorts/tag/semantic-web"
The distribution (Pro) 
curl "https://apis.io/api/v1/cohorts/tag/semantic-web/stats" \
  -H "X-API-Key: $APIS_IO_KEY"

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