@prefix dcat: . @prefix dct: . @prefix foaf: . @prefix prov: . @prefix rdfs: . @prefix skos: . @prefix spdx: . @prefix vcard: . @prefix xsd: . a dct:Location . a skos:Concept ; skos:prefLabel "Environment"@en . a skos:Concept ; skos:prefLabel "Health"@en . a dct:MediaTypeOrExtent . a dct:MediaTypeOrExtent . a dct:MediaTypeOrExtent . a dct:MediaTypeOrExtent . a dct:Frequency . a dct:MediaType . a dct:MediaType . a dct:MediaType . a dct:MediaType . a dct:MediaType . a dct:MediaType . a dct:Standard . a foaf:Document . a dct:Standard . a dcat:Dataset ; dct:description "Hodinové průměry všech stanic ČHMÚ, z nichž prostor drží 14 pražských, CC BY 4.0." ; dct:title "Kvalita ovzduší – aktuální hodinové údaje (ČHMÚ)" . a dcat:Distribution ; dct:description "The data model as Markdown; sha256 6ae2ec680f1616891659b8556a258ba2e70d68d847b1a8f8bf14d17d9fdbddbb." ; dct:format ; dct:issued "2026-09-28T00:00:00+00:00"^^xsd:dateTime ; dct:license ; dct:modified "2026-10-20T01:40:04.387895"^^xsd:dateTime ; dct:rights [ a dct:RightsStatement ; rdfs:label "Zdroj: Český hydrometeorologický ústav (CC BY 4.0)" ] ; dct:title "praha-mesto model.md" ; spdx:checksum [ a spdx:Checksum ; spdx:algorithm spdx:checksumAlgorithm_sha256 ; spdx:checksumValue "6ae2ec680f1616891659b8556a258ba2e70d68d847b1a8f8bf14d17d9fdbddbb"^^xsd:hexBinary ] ; dcat:accessURL ; dcat:byteSize "1414"^^xsd:nonNegativeInteger ; dcat:mediaType . a dcat:Distribution ; dct:description """Live updates: open one WebSocket, subscribe to the entities you want, and each change arrives as a message, with no server of your own. With websocat, then type the subscription: websocat --protocol ngsi-ld-ws 'wss://api.dev.joinedcontext.com/api/endpoint/muwmdpwigo7paq3gpy7hrwe7ou35lmaa/ws' {"metadata":{"x-op":"x-subscribe","x-id":"s1"},"body":{"type":"Subscription","entities":[{"type":"BikeHireDockingStation"}]}} Always live: the catalogue holds this link, never a copy. Open to anyone, with no sign-in. The message format, the limits and examples in JavaScript and Python: https://dev.joinedcontext.com/docs/API/07-websocket""" ; dct:issued "2026-09-28T00:00:00+00:00"^^xsd:dateTime ; dct:license ; dct:modified "2026-10-20T01:40:04.387502"^^xsd:dateTime ; dct:rights [ a dct:RightsStatement ; rdfs:label "Zdroj: Český hydrometeorologický ústav (CC BY 4.0)" ] ; dct:title "Live updates over WebSocket" ; dcat:accessURL ; dcat:mediaType . a dcat:Distribution ; dct:description "The data model as OWL; sha256 fe1276b15ad8d4022a7742f753d9057a7bfce08158ca8b453d5ecf371c16c168." ; dct:format ; dct:issued "2026-09-28T00:00:00+00:00"^^xsd:dateTime ; dct:license ; dct:modified "2026-10-20T01:40:04.387936"^^xsd:dateTime ; dct:rights [ a dct:RightsStatement ; rdfs:label "Zdroj: Český hydrometeorologický ústav (CC BY 4.0)" ] ; dct:title "praha-mesto model.owl.ttl" ; spdx:checksum [ a spdx:Checksum ; spdx:algorithm spdx:checksumAlgorithm_sha256 ; spdx:checksumValue "fe1276b15ad8d4022a7742f753d9057a7bfce08158ca8b453d5ecf371c16c168"^^xsd:hexBinary ] ; dcat:accessURL ; dcat:byteSize "2673"^^xsd:nonNegativeInteger ; dcat:mediaType . a dcat:Distribution ; dct:description "The data model as JSON Schema; sha256 81db6628a7879499029bcbac92e866d9fff3f7d5012eeee0ac3b2dc1f37cec51." ; dct:format ; dct:issued "2026-09-28T00:00:00+00:00"^^xsd:dateTime ; dct:license ; dct:modified "2026-10-20T01:40:04.388050"^^xsd:dateTime ; dct:rights [ a dct:RightsStatement ; rdfs:label "Zdroj: Český hydrometeorologický ústav (CC BY 4.0)" ] ; dct:title "praha-mesto model.schema.json" ; spdx:checksum [ a spdx:Checksum ; spdx:algorithm spdx:checksumAlgorithm_sha256 ; spdx:checksumValue "81db6628a7879499029bcbac92e866d9fff3f7d5012eeee0ac3b2dc1f37cec51"^^xsd:hexBinary ] ; dcat:accessURL ; dcat:byteSize "2495"^^xsd:nonNegativeInteger ; dcat:mediaType . a dcat:Distribution ; dct:description "The data model as SHACL; sha256 cb8121c57672ff020bd5a7c06a7fbb7a54552ae6f219e68b260413fac1da5259." ; dct:format ; dct:issued "2026-09-28T00:00:00+00:00"^^xsd:dateTime ; dct:license ; dct:modified "2026-10-20T01:40:04.388113"^^xsd:dateTime ; dct:rights [ a dct:RightsStatement ; rdfs:label "Zdroj: Český hydrometeorologický ústav (CC BY 4.0)" ] ; dct:title "praha-mesto model.shacl.ttl" ; spdx:checksum [ a spdx:Checksum ; spdx:algorithm spdx:checksumAlgorithm_sha256 ; spdx:checksumValue "cb8121c57672ff020bd5a7c06a7fbb7a54552ae6f219e68b260413fac1da5259"^^xsd:hexBinary ] ; dcat:accessURL ; dcat:byteSize "3876"^^xsd:nonNegativeInteger ; dcat:mediaType . a dcat:Distribution ; dct:format ; dct:issued "2026-09-28T00:00:00+00:00"^^xsd:dateTime ; dct:license ; dct:modified "2026-10-20T01:40:04.388175"^^xsd:dateTime ; dct:rights [ a dct:RightsStatement ; rdfs:label "Zdroj: Český hydrometeorologický ústav (CC BY 4.0)" ] ; dct:title "AirQualityObserved" ; dcat:accessURL . a dcat:Distribution ; dct:description """For AI assistants: a Model Context Protocol server over this dataset's endpoint https://api.dev.joinedcontext.com/api/endpoint/muwmdpwigo7paq3gpy7hrwe7ou35lmaa. It answers anyone, with no sign-in, what the endpoint serves the public. Tools: `query_entities` (the rows of an entity type, with an NGSI-LD `q` filter, `attrs`, `count` and paging), `get_entity` (one entity by its URN), `describe_schema` (the data model: read it first) and `describe_access` (what you may read). Licence: Creative Commons Attribution 4.0; the data is reused under it. An MCP client reaches it with this configuration: {"mcpServers":{"praha-ovzdusi":{"type":"http","url":"https://api.dev.joinedcontext.com/api/endpoint/muwmdpwigo7paq3gpy7hrwe7ou35lmaa/mcp"}}} """ ; dct:format ; dct:issued "2026-09-28T00:00:00+00:00"^^xsd:dateTime ; dct:license ; dct:modified "2026-10-20T01:40:04.387678"^^xsd:dateTime ; dct:rights [ a dct:RightsStatement ; rdfs:label "Zdroj: Český hydrometeorologický ústav (CC BY 4.0)" ] ; dct:title "Model Context Protocol" ; dcat:accessService [ a dcat:DataService ; dct:conformsTo ; dct:title "Model Context Protocol" ; dcat:endpointURL ; dcat:servesDataset ] ; dcat:accessURL ; dcat:mediaType . a dcat:Distribution ; dct:description "The data model as LinkML; sha256 109e534fe4c2de06d4a2168718437d7815132788e9425c77db6b705d18e07ca4." ; dct:format ; dct:issued "2026-09-28T00:00:00+00:00"^^xsd:dateTime ; dct:license ; dct:modified "2026-10-20T01:40:04.387841"^^xsd:dateTime ; dct:rights [ a dct:RightsStatement ; rdfs:label "Zdroj: Český hydrometeorologický ústav (CC BY 4.0)" ] ; dct:title "praha-mesto model.linkml.yaml" ; spdx:checksum [ a spdx:Checksum ; spdx:algorithm spdx:checksumAlgorithm_sha256 ; spdx:checksumValue "109e534fe4c2de06d4a2168718437d7815132788e9425c77db6b705d18e07ca4"^^xsd:hexBinary ] ; dcat:accessURL ; dcat:byteSize "5587"^^xsd:nonNegativeInteger ; dcat:mediaType . a dcat:Distribution ; dct:description "The data model as RDF; sha256 91bcd25a7853b9c67ba52777f9571e01c0ae0a2516a712643de13463428ae381." ; dct:format ; dct:issued "2026-09-28T00:00:00+00:00"^^xsd:dateTime ; dct:license ; dct:modified "2026-10-20T01:40:04.387986"^^xsd:dateTime ; dct:rights [ a dct:RightsStatement ; rdfs:label "Zdroj: Český hydrometeorologický ústav (CC BY 4.0)" ] ; dct:title "praha-mesto model.rdf.ttl" ; spdx:checksum [ a spdx:Checksum ; spdx:algorithm spdx:checksumAlgorithm_sha256 ; spdx:checksumValue "91bcd25a7853b9c67ba52777f9571e01c0ae0a2516a712643de13463428ae381"^^xsd:hexBinary ] ; dcat:accessURL ; dcat:byteSize "1447"^^xsd:nonNegativeInteger ; dcat:mediaType . a dcat:Distribution ; dct:description """A CSV table, generated on each download from the endpoint's live data. curl -o file.csv 'https://api.dev.joinedcontext.com/api/endpoint/muwmdpwigo7paq3gpy7hrwe7ou35lmaa/file.csv' Open to anyone, with no sign-in.""" ; dct:format ; dct:issued "2026-09-28T00:00:00+00:00"^^xsd:dateTime ; dct:license ; dct:modified "2026-10-20T01:40:04.387434"^^xsd:dateTime ; dct:rights [ a dct:RightsStatement ; rdfs:label "Zdroj: Český hydrometeorologický ústav (CC BY 4.0)" ] ; dct:title "CSV" ; dcat:accessURL ; dcat:mediaType . a dcat:Distribution ; dct:description """OData v4, read-only: each entity type is an entity set, with $filter, $select, $orderby and $top. In Excel: Data, Get Data, From Other Sources, From OData Feed, then the URL https://api.dev.joinedcontext.com/api/endpoint/muwmdpwigo7paq3gpy7hrwe7ou35lmaa/odata/v4/. In Power BI: Get data, OData feed, the same URL. With curl: curl 'https://api.dev.joinedcontext.com/api/endpoint/muwmdpwigo7paq3gpy7hrwe7ou35lmaa/odata/v4/' Always live: the catalogue holds this link, never a copy. Open to anyone, with no sign-in. The fields it filters on and example queries that answered with this dataset's data: https://api.dev.joinedcontext.com/d/muwmdpwigo7paq3gpy7hrwe7ou35lmaa""" ; dct:issued "2026-09-28T00:00:00+00:00"^^xsd:dateTime ; dct:license ; dct:modified "2026-10-20T01:40:04.387620"^^xsd:dateTime ; dct:rights [ a dct:RightsStatement ; rdfs:label "Zdroj: Český hydrometeorologický ústav (CC BY 4.0)" ] ; dct:title "OData v4" ; dcat:accessURL ; dcat:mediaType . a dcat:Distribution ; dct:description """The NGSI-LD API (ETSI GS CIM 009) of this dataset: query, filter and page its entities. The first ten BikeHireDockingStation entities: curl -H 'Accept: application/ld+json' 'https://api.dev.joinedcontext.com/api/endpoint/muwmdpwigo7paq3gpy7hrwe7ou35lmaa/ngsi-ld/v1/entities?type=BikeHireDockingStation&limit=10' Always live: the catalogue holds this link, never a copy. Open to anyone, with no sign-in. The fields it filters on and example queries that answered with this dataset's data: https://api.dev.joinedcontext.com/d/muwmdpwigo7paq3gpy7hrwe7ou35lmaa""" ; dct:format ; dct:issued "2026-09-28T00:00:00+00:00"^^xsd:dateTime ; dct:license ; dct:modified "2026-10-20T01:40:04.387317"^^xsd:dateTime ; dct:rights [ a dct:RightsStatement ; rdfs:label "Zdroj: Český hydrometeorologický ústav (CC BY 4.0)" ] ; dct:title "NGSI-LD API" ; dcat:accessService [ a dcat:DataService ; dct:conformsTo ; dct:title "NGSI-LD API" ; dcat:endpointURL ; dcat:servesDataset ] ; dcat:accessURL ; dcat:mediaType . a dcat:Distribution ; dct:description "The data model as JSON-LD; sha256 26b6256fabd3aea9ebdf680dbde92a0309d235cc1ddec295bcc8b607bfa56cb3." ; dct:format ; dct:issued "2026-09-28T00:00:00+00:00"^^xsd:dateTime ; dct:license ; dct:modified "2026-10-20T01:40:04.387790"^^xsd:dateTime ; dct:rights [ a dct:RightsStatement ; rdfs:label "Zdroj: Český hydrometeorologický ústav (CC BY 4.0)" ] ; dct:title "praha-mesto context.jsonld" ; spdx:checksum [ a spdx:Checksum ; spdx:algorithm spdx:checksumAlgorithm_sha256 ; spdx:checksumValue "26b6256fabd3aea9ebdf680dbde92a0309d235cc1ddec295bcc8b607bfa56cb3"^^xsd:hexBinary ] ; dcat:accessURL ; dcat:byteSize "1280"^^xsd:nonNegativeInteger ; dcat:mediaType . a dcat:Distribution ; dct:description "The data model in every formalism, for every model version, each artifact with its sha256 (EP-68)." ; dct:format ; dct:issued "2026-09-28T00:00:00+00:00"^^xsd:dateTime ; dct:license ; dct:modified "2026-10-20T01:40:04.387737"^^xsd:dateTime ; dct:rights [ a dct:RightsStatement ; rdfs:label "Zdroj: Český hydrometeorologický ústav (CC BY 4.0)" ] ; dct:title "Schema artifacts" ; dcat:accessURL ; dcat:mediaType . a dcat:Distribution ; dct:description """OGC API - Features, read-only: Part 1 (Core: collections and items), Part 2 (coordinate reference systems by reference) and Part 3 (Filtering with CQL2). https://api.dev.joinedcontext.com/api/endpoint/muwmdpwigo7paq3gpy7hrwe7ou35lmaa/ogc/features/conformance lists the classes this endpoint serves. In QGIS: Layer, Add Layer, Add WFS / OGC API - Features Layer, a new connection with the URL https://api.dev.joinedcontext.com/api/endpoint/muwmdpwigo7paq3gpy7hrwe7ou35lmaa/ogc/features/. With curl: curl 'https://api.dev.joinedcontext.com/api/endpoint/muwmdpwigo7paq3gpy7hrwe7ou35lmaa/ogc/features/collections' Always live: the catalogue holds this link, never a copy. Open to anyone, with no sign-in. The fields it filters on and example queries that answered with this dataset's data: https://api.dev.joinedcontext.com/d/muwmdpwigo7paq3gpy7hrwe7ou35lmaa""" ; dct:format ; dct:issued "2026-09-28T00:00:00+00:00"^^xsd:dateTime ; dct:license ; dct:modified "2026-10-20T01:40:04.387562"^^xsd:dateTime ; dct:rights [ a dct:RightsStatement ; rdfs:label "Zdroj: Český hydrometeorologický ústav (CC BY 4.0)" ] ; dct:title "OGC API - Features" ; dcat:accessService [ a dcat:DataService ; dct:conformsTo ; dct:title "OGC API - Features" ; dcat:endpointURL ; dcat:servesDataset ] ; dcat:accessURL ; dcat:mediaType . a foaf:Agent ; foaf:name "Hlavní město Praha" . a dct:Standard . a dct:Standard . a dct:MediaTypeOrExtent . a dct:MediaTypeOrExtent . a dct:MediaTypeOrExtent . a rdfs:Resource . a rdfs:Resource . a rdfs:Resource . a dct:MediaTypeOrExtent . a dct:MediaType . a dcat:Dataset ; dct:accrualPeriodicity ; dct:conformsTo ; dct:description "Hodinové průměry znečišťujících látek na 14 pražských stanicích ČHMÚ. Zdroj: Český hydrometeorologický ústav, CC BY 4.0." ; dct:identifier "muwmdpwigo7paq3gpy7hrwe7ou35lmaa" ; dct:issued "2026-09-28T00:00:00+00:00"^^xsd:dateTime ; dct:modified "2026-10-20T01:40:04.378897"^^xsd:dateTime ; dct:publisher ; dct:source ; dct:spatial ; dct:title "Kvalita ovzduší — Praha" ; dcat:contactPoint [ a vcard:Kind, vcard:Organization ; vcard:fn "joinedcontext platform" ; vcard:hasEmail ] ; dcat:distribution , , , , , , , , , , , , , , ; dcat:keyword "NO2", "PM10", "PM2.5", "Prague", "Praha", "air quality", "kvalita ovzduší" ; dcat:landingPage ; dcat:theme , ; prov:wasGeneratedBy [ a prov:Activity ; rdfs:label "pipeline air-quality" ] . a dct:MediaType . spdx:checksumAlgorithm_sha256 a spdx:ChecksumAlgorithm . a dct:LicenseDocument .