JSON
Variants seen in the corpus:
.JsonJSONJsonjson
Providers using this tag (274)
Ranked by API Evangelist rating — Exemplar and Strong are expanded by default.
Exemplar 3 Complete, well-documented, and agent-ready
Strong 3 Solid coverage with minor gaps
Developing 21 Usable, with meaningful gaps to close
Thin 31 Limited public surface area
EatonDolls KillPlanomy Tax DataSpring BootCloudBeesedi-214BulletProofApache StrutsTYPO3Sunrise SunsetOlipopAdvantage SolutionsVoyage FoodsWestern PowerApache CouchDB100 ThievesCraft CMSRCSB PDBDavid ProteinInsurance Council of AustraliaVaynerMediaApache CassandraTU DresdenPubMedVictoria University of WellingtonUnderdog4chanOracle Database 19cCorporate Bullshit Generator APICountry.ioPantry
Emerging 174 Early or largely undocumented
Université de MontréalFederal Housing Finance Agency (FHFA)BrewDogW3CBrown UniversityCloud9FeedoughHanyang UniversityScalaSiteMinderWyndham Hotels & ResortsGeekWireBlue OriginUniversity of FreiburgNational Cheng Kung UniversityTest SpecificationsRSSTransport for NSW Open Data HubApache AvroCalderdale Data WorksCalifornia Health and Human ServicesCalifornia Natural Resources AgencyCalifornia Open Datadata.overheid.nlDatenregister BerlinEssex Open DataNSW Government Open DataOpen Data Schleswig-Holsteinopen NRWopendata.swissUK Government Open DataYukon Open DataMassey UniversityRESTJSONdata.gov.uk CKAN Publishing ServiceDonnees QuebecLondon DatastoreOpen Development CambodiaOpen Development MekongOpen Development MyanmarOpen Development VietnamQueensland Government DataInterpublic GroupAlbertaAmeriGEOSS Community PlatformAnalyze BostonAragón Open DataAvoindata.fiBarnet Open DataBC Data CatalogueBienvenido a OpenData UGRBODIK ODCSBritish Columbia (DataBC)Buenos Aires DataCity of Milan Open DataCity of San JoseCity of Toronto Open DataCKAN DemoDados abertos Distrito FederalDados Abertos POADados RSDATA GO JPData Mill North (Leeds)Data.gov Inventorydata.gov.au FederalDATA.GOV.HKdata.gov.iedata.gov.lvdata.sa.gov.au South Australiadata.zagreb.hr Official Open Data PortalDataVic Victoriadati.emilia-romagna.itdati.gov.itDatos abiertosDatos Abiertos ACUMARDatos Abiertos ARSATDatos Abiertos BogotaDatos Abiertos Salud ArgentinaDatos Agricultura ArgentinaDatos ArgentinaDatos Energia ArgentinaDatos Provincia de MisionesDatos Transporte ArgentinaDatos Turismo y Deportes Argentinadatos.gob.mx - Sitio oficial de datos abiertos del Gobierno de la Repúblicadatos.gub.uy - Catálogo de Datos Abiertosdatos.misiones.gov.arDOE NETL Energy Data ExchangeDonnees Ouvertes Montreale-Gov Data CatalogENERGYDATA.infoEUDAT B2FINDFortaleza Dados AbertosGifu Prefecture Open DataGouvernement ouvert Canada (FR)gov.ilGovData DeutschlandGovData GermanyGoverno Aberto do Estado de São PauloGreece National Data PortalHawaii Open Data PortalHumanitarian Data ExchangeIATI RegistryLeeds Data MillMadrid Region Open DataMedicaid Open DataMilwaukee Open DataMontpellier Open DataMontréal, QuébecNASA Open DataNHS Scotland Open DataNiagara Open DataNorthern Territory Open DataOfficial Ukrainian Government PortalOklahomaOntario Data CatalogueOpen Data Regione ToscanaOpen Data TrentinoOpen Government Canadaopendata.gov.jeOpenData.HRO - Portal für offene Data der Hansestadt RostockOpenDataNI (Northern Ireland)OPSI SloveniaPortal Datos Abiertos Ayuntamiento de MálagaPortal de Dados Abertos da Cidade de São PauloPortal de Dados Abertos – Prefeitura de Belo HorizontePortal de Dados Urbanos PPGAU UFF - Open data portal for Urban ResarchPortal de Datos Abiertos Republica DominicanaPortal oficial Ayuntamiento de Rivas VaciamadridPortale Dati aperti del Comune di MateraQueensland Geoscience DataRecife City Open DataSan Bernardino County ATC OpenDataSatu Data AcehSatu Data Bencana Indonesia (BNPB)Satu Data Kalimantan TimurSatu Data Semarang RegencySpatial Hub ScotlandTokyo Metropolitan Open DataTransparency Portal for the City of Karlsruhe, GermanyUS Small Business Administration Open DataVirginia Open DataWestern Australia Data CatalogueYokohama City Open DataLinqtoAPI SpecificationsFeignJakarta EEMontenegro Open DataBBDO WorldwideRESTfulNixpacksJSON ProcessingJSON BindingAcre Open DataBahia Blanca Open DataBahia Open DataEntre Rios Open DataEspirito Santo Open DataEthiopia Open DataLazio Open DataLeipzig Open DataLiguria Open DataMendoza Open DataMessina Open DataModena Open DataNaples Open DataOracle Database 11gPakistan Open DataPernambuco Open DataRondonia Open DataSanta Catarina Open DataPlusMargin
Minimal 42 Almost no public developer surface
Construction MonitorOpolskie Open DataZurich Open DataIreland Open Data CatalogueLecce Open DataMontenegro Open Data (data.gov.me)Neolaiacampus Open DataUmbria Region Open DataBoxxApps Open DataCali Open DataCompanies Registration Office Open DataConsip Open DataIncheon Open DataIrish Agriculture Open DataIrish Housing Open DataKildare County Council Open DataKozadat Hungary Open DataLimerick Open Data CatalogueLisbon Open DataMaggioli Cloud Open DataMontevideo Open DataNBCO Open DataNCSE Open DataRimini Open DataRome Open DataSonora Open DataSouth Tyrol Civis Open DataTeagasc Open DataTrento Open DataTurin Open DataTusla Child & Family Agency Open DataUruguay Open Data Cataloguedata.egov.bg (Open Data Portal of Bulgaria)data.gov.hrdataset.gov.md (Portalul Datelor Deschise)LexooUniversity of Bologna Open DataUPM YODA Open Data Portaldata.gov.mkdata.gov.rsopendata.gov.al (Open Data Albania)BitYota
APIs with this tag (263)
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 2 Complete, well-documented, and agent-ready
Strong 3 Solid coverage with minor gaps
IBM CloudantFully managed distributed JSON document database built for the cloud with high availability, durability, an...NeverBounce API v4RESTful JSON API for email verification. Provides single email verification (`/single/check`), bulk job ver...Marketo .Json APIThe .Json API from Marketo — 2 operation(s) for .json.
Developing 16 Usable, with meaningful gaps to close
LlamaParse Extract APIThe Extract API from LlamaParse — 5 operation(s) for extract.BrewPage JSON APIJSON document store with up to 10,000 docs per collectionOracle Database API for MongoDBMongoDB-compatible API for Oracle Database.Virtual Infrastructure JSON APIHTTP and JSON based wire protocol as an alternative to SOAP and XML for vCenter Server 8.0 Update 1 and lat...SAP HANA JSON Document Store APIAPI for storing, querying, and managing semi-structured JSON documents within SAP HANA using a hybrid relat...Workday REST APIRESTful API providing modern JSON-based access to Workday data and services. Uses OAuth 2.0 authentication ...Razorpay Core REST APIRESTful API covering orders, payments, refunds, customers, tokens, invoices, payment links, virtual account...DuckDuckGo Tracker Radar DatasetTracker Radar is the open dataset that powers DuckDuckGo's tracker and fingerprinting protection. It is a J...ColdSnap Store JSON (Ajax) APIThe unauthenticated read-only JSON surface Shopify serves from the ColdSnap storefront and which the store'...HL7 FHIR R5 Healthcare APIHL7 FHIR R5 (Release 5) is the current published FHIR standard for healthcare data exchange. FHIR R5 REST A...JSON Validate, Repair, Convert, Query & DiffOne endpoint to validate, repair, format, query, diff, convert, and canonicalize JSON — the most common ope...UCSF Profiles JSON APIOpen, unauthenticated JSON API (v2) over UCSF Profiles, the research-networking platform run by UCSF CTSI, ...Columbia Open Data ServiceThe central university service publishing data feeds to software developers in programming-friendly formats...E2open Supply Chain Platform APIE2open supply chain platform APIs enable supply chain event management, transportation management, customs ...AT Protocol XRPC APIXRPC is the AT Protocol's HTTP-based remote procedure call layer. All protocol interactions — querying reco...Apache James JMAP APIThe JMAP (JSON Meta Application Protocol) implementation in James provides a modern, efficient email protoc...
Thin 24 Limited public surface area
Eaton easyE4 JSON APIJSON API on the Eaton easyE4 PLC / control relay that exposes I/O state, NET-IDs, markers, and configuratio...Dolls Kill Storefront Product JSON APIThe read-only, unauthenticated JSON endpoints Dolls Kill documents in its own agents.md for agents that onl...Spring Boot REST APIRESTful web services built with Spring Boot using Spring MVC or Spring WebFlux. Supports JSON, XML, and hyp...CloudBees Json APIThe Json API from CloudBees — 1 operation(s) for json.Stedi EDI API (X12 214 Support)Stedi provides a cloud EDI platform with comprehensive X12 214 documentation and tooling. The EDI Inspector...Bulletproof Storefront JSON CatalogThe unauthenticated Shopify storefront JSON catalog endpoints (/products.json, /collections.json, /products...Apache Struts REST PluginThe Struts REST Plugin provides a convention-based REST API framework for building RESTful services. It map...TYPO3 Headless JSON Content APIThe TYPO3 Headless extension provides a JSON API for delivering page content, navigation structures, layout...Sunrise Sunset Json APIThe Json API from Sunrise Sunset — 1 operation(s) for json.OLIPOP Storefront Product JSONUnauthenticated read-only JSON endpoints the store's own agent instructions publish for agents that only ne...Advantage Solutions Corporate Content API (WordPress REST)The publicly readable content API of the Advantage Solutions corporate site. youradv.com runs WordPress on ...Western Power Corporate Web APIThe anonymous read endpoints behind westernpower.com.au itself — site search, the news article feed and the...Western Power Outage Web APIThe undocumented first-party JSON API behind the public Western Power outage tracker. The outage page decla...Craft CMS Element APIOfficial Craft CMS plugin that creates configurable JSON REST endpoints for any element type (entries, asse...RCSB PDB Data APIProvides structured access to the complete RCSB PDB holdings via REST and GraphQL interfaces. Given a known...David Protein Storefront JSONThe unauthenticated read-only JSON surface David documents in agents.md for agents that only need to browse...Insurance Council of Australia WordPress REST APIinsurancecouncil.com.au runs on WordPress and leaves the standard WordPress REST API reachable anonymously ...VaynerMedia WordPress Content APIvaynermedia.com is a self-hosted WordPress site on WP Engine, and it leaves the WordPress REST API open for...Cassandra Document API (Stargate)Schemaless Document API that stores JSON documents in Cassandra, offering a MongoDB-like developer experien...TU Dresden Lecture Catalog APIGated JSON API providing automated access to public data from the TU Dresden lecture directory (Vorlesungsv...PMC BioC APIThe BioC API provides full text retrieval of PubMed Central Open Access articles in BioC XML or JSON format...Website Global Object EndpointAn undocumented JSON configuration endpoint served by the university's main website that returns global sit...Oracle Database JSON Collections APIRESTful API for managing JSON document collections with CRUD operations.Oracle Database SODA (Simple Oracle Document Access)Document-oriented NoSQL-style API for storing, retrieving, and querying JSON documents in Oracle Database.
Emerging 177 Early or largely undocumented
SADVR REST API (Vitrine-Recherche)REST API from the Service d'accès aux données de la Vitrine-Recherche, redistributing UdeM research data. P...FHFA House Price Index (HPI) APIThe FHFA House Price Index (HPI) is a comprehensive, publicly available dataset measuring changes in single...BrewDog Storefront Product JSONThe unauthenticated, read-only product and collection JSON surface of the brewdog.com Shopify storefront, d...JSON-LDJSON-LD (JSON for Linking Data) is a W3C Recommendation for encoding linked data using JSON. It provides a ...Brown Digital Repository (BDR) APIPublic REST/search API for the Brown Digital Repository, the library's platform for gathering, indexing, st...Cloud9 Store JSON EndpointsThe official Cloud9 merchandise store at store.cloud9.gg is a Shopify storefront, and Shopify serves its st...Cloud9 WordPress REST APIcloud9.gg runs on WordPress (WP Cloud / Automattic Atomic hosting) and serves the standard WordPress REST A...Feedough WordPress REST APIFeedough is built on WordPress and exposes the standard WordPress REST API, providing JSON endpoints for ac...Hanyang University Open API Developer CenterOfficial Hanyang University Open API platform providing REST-style APIs that return XML or JSON. APIs are c...Circe APICirce is the most widely used JSON library for Scala, built on top of Cats. Provides encoding, decoding, tr...SiteMinder Channels Plus APIChannels Plus is SiteMinder's REST and JSON booking channel API that lets partners connect to many SiteMind...SiteMinder Direct Booking APIThe Direct Booking API is a REST and JSON service that lets hotel groups on SiteMinder's Multi-Property pla...Wyndham Business WordPress REST APIwww.wyndhambusiness.com — the Wyndham Business corporate-travel program site — runs WordPress on WP Engine ...Wyndham Hotel Development WordPress REST APIdevelopment.wyndhamhotels.com — the franchise-development site — runs the same WordPress/WP Engine stack an...GeekWire WordPress REST APIGeekWire is built on WordPress and exposes the standard WordPress REST API, providing JSON endpoints for ac...Blue Origin Shop Storefront JSONThe read-only JSON surface of the Blue Origin Shop Shopify storefront, documented by the store's own llms.t...FreiDok plus JSON APIRead-only JSON API for the FreiDok plus institutional repository and university bibliography, returning pub...NCKU Open Data Platform (CKAN Action API)NCKU's open data platform is built on CKAN and exposes the standard CKAN Action API. Endpoints such as /api...JSON SchemaJSON Schema provides a vocabulary for annotating and validating JSON documents. Used extensively as the pay...JSON Feed 1.1JSON Feed 1.1 is a JSON-based syndication format created by Brent Simmons and Manton Reece as a developer-f...Transport for NSW Open Data Hub CKAN Action APICKAN Action API for Transport for NSW Open Data Hub, a consistent JSON-over-HTTP interface over a catalog o...Apache Avro Schema FormatJSON Schema for validating Apache Avro schema definitions. Covers all Avro types including primitive types ...Calderdale Data Works CKAN Action APICKAN Action API for Calderdale Data Works, a consistent JSON-over-HTTP interface over a catalog of an open ...California Health and Human Services CKAN Action APICKAN Action API for California Health and Human Services, a consistent JSON-over-HTTP interface over a cata...California Natural Resources Agency CKAN Action APICKAN Action API for California Natural Resources Agency, a consistent JSON-over-HTTP interface over a catal...California Open Data CKAN Action APICKAN Action API for California Open Data, a consistent JSON-over-HTTP interface over a catalog of 4,456 dat...data.overheid.nl CKAN Action APICKAN Action API for data.overheid.nl, a consistent JSON-over-HTTP interface over a catalog of 20,386 datase...Datenregister Berlin CKAN Action APICKAN Action API for Datenregister Berlin, a consistent JSON-over-HTTP interface over a catalog of 2,609 dat...Essex Open Data CKAN Action APICKAN Action API for Essex Open Data, a consistent JSON-over-HTTP interface over a catalog of an open datase...NSW Government Open Data CKAN Action APICKAN Action API for NSW Government Open Data, a consistent JSON-over-HTTP interface over a catalog of 16,90...Open Data Schleswig-Holstein CKAN Action APICKAN Action API for Open Data Schleswig-Holstein, a consistent JSON-over-HTTP interface over a catalog of 3...open NRW CKAN Action APICKAN Action API for open NRW, a consistent JSON-over-HTTP interface over a catalog of 10,579 datasets. Stan...opendata.swiss CKAN Action APICKAN Action API for opendata.swiss, a consistent JSON-over-HTTP interface over a catalog of 14,544 datasets...UK Government Open Data CKAN Action APICKAN Action API for UK Government Open Data, a consistent JSON-over-HTTP interface over a catalog of 57,791...Yukon Open Data CKAN Action APICKAN Action API for Yukon Open Data, a consistent JSON-over-HTTP interface over a catalog of 3,773 datasets...JSON:APIJSON:API is a specification for how a client should request that resources be fetched or modified, and how ...Massey Research Online DSpace REST APIHAL/JSON REST API for Massey Research Online, running DSpace 8.3. Exposes hypermedia (HATEOAS) endpoints fo...data.gov.uk CKAN Publishing Service CKAN Action APICKAN Action API for data.gov.uk CKAN Publishing Service, a consistent JSON-over-HTTP interface over a catal...Donnees Quebec CKAN Action APICKAN Action API for Donnees Quebec, a consistent JSON-over-HTTP interface over a catalog of 1,608 datasets....London Datastore CKAN Action APICKAN Action API for London Datastore, a consistent JSON-over-HTTP interface over a catalog of an open datas...Open Development Cambodia CKAN Action APICKAN Action API for Open Development Cambodia, a consistent JSON-over-HTTP interface over a catalog of 13,4...Open Development Mekong CKAN Action APICKAN Action API for Open Development Mekong, a consistent JSON-over-HTTP interface over a catalog of 13,483...Open Development Myanmar CKAN Action APICKAN Action API for Open Development Myanmar, a consistent JSON-over-HTTP interface over a catalog of 13,48...Open Development Vietnam CKAN Action APICKAN Action API for Open Development Vietnam, a consistent JSON-over-HTTP interface over a catalog of 13,48...Queensland Government Data CKAN Action APICKAN Action API for Queensland Government Data, a consistent JSON-over-HTTP interface over a catalog of 188...Interpublic Group WordPress Wp/v2 APIWordPress core content API for the Interpublic Group corporate site - posts, pages, media, taxonomies, user...Alberta CKAN Action APICKAN Action API for Alberta, a consistent JSON-over-HTTP interface over a catalog of 33,436 datasets. Stand...AmeriGEOSS Community Platform CKAN Action APICKAN Action API for AmeriGEOSS Community Platform, a consistent JSON-over-HTTP interface over a catalog of ...Analyze Boston CKAN Action APICKAN Action API for Analyze Boston, a consistent JSON-over-HTTP interface over a catalog of 231 datasets. S...Aragón Open Data CKAN Action APICKAN Action API for Aragón Open Data, a consistent JSON-over-HTTP interface over a catalog of 2,429 dataset...Avoindata.fi CKAN Action APICKAN Action API for Avoindata.fi, a consistent JSON-over-HTTP interface over a catalog of 2,521 datasets. S...Barnet Open Data CKAN Action APICKAN Action API for Barnet Open Data, a consistent JSON-over-HTTP interface over a catalog of an open datas...BC Data Catalogue CKAN Action APICKAN Action API for BC Data Catalogue, a consistent JSON-over-HTTP interface over a catalog of 3,346 datase...Bienvenido a OpenData UGR CKAN Action APICKAN Action API for Bienvenido a OpenData UGR, a consistent JSON-over-HTTP interface over a catalog of 65 d...BODIK ODCS CKAN Action APICKAN Action API for BODIK ODCS, a consistent JSON-over-HTTP interface over a catalog of 17,545 datasets. St...British Columbia (DataBC) CKAN Action APICKAN Action API for British Columbia (DataBC), a consistent JSON-over-HTTP interface over a catalog of 3,34...Buenos Aires Data CKAN Action APICKAN Action API for Buenos Aires Data, a consistent JSON-over-HTTP interface over a catalog of 451 datasets...City of Milan Open Data CKAN Action APICKAN Action API for City of Milan Open Data, a consistent JSON-over-HTTP interface over a catalog of 2,594 ...City of San Jose CKAN Action APICKAN Action API for City of San Jose, a consistent JSON-over-HTTP interface over a catalog of 170 datasets....City of Toronto Open Data CKAN Action APICKAN Action API for City of Toronto Open Data, a consistent JSON-over-HTTP interface over a catalog of 543 ...CKAN Demo CKAN Action APICKAN Action API for CKAN Demo, a consistent JSON-over-HTTP interface over a catalog of 13 datasets. Standar...Dados abertos Distrito Federal CKAN Action APICKAN Action API for Dados abertos Distrito Federal, a consistent JSON-over-HTTP interface over a catalog of...Dados Abertos POA CKAN Action APICKAN Action API for Dados Abertos POA, a consistent JSON-over-HTTP interface over a catalog of an open data...Dados RS CKAN Action APICKAN Action API for Dados RS, a consistent JSON-over-HTTP interface over a catalog of 404 datasets. Standar...DATA GO JP CKAN Action APICKAN Action API for DATA GO JP, a consistent JSON-over-HTTP interface over a catalog of 18,366 datasets. St...Data Mill North (Leeds) CKAN Action APICKAN Action API for Data Mill North (Leeds), a consistent JSON-over-HTTP interface over a catalog of an ope...Data.gov Inventory CKAN Action APICKAN Action API for Data.gov Inventory, a consistent JSON-over-HTTP interface over a catalog of an open dat...data.gov.au Federal CKAN Action APICKAN Action API for data.gov.au Federal, a consistent JSON-over-HTTP interface over a catalog of 132,257 da...DATA.GOV.HK CKAN Action APICKAN Action API for DATA.GOV.HK, a consistent JSON-over-HTTP interface over a catalog of 218 datasets. Stan...data.gov.ie CKAN Action APICKAN Action API for data.gov.ie, a consistent JSON-over-HTTP interface over a catalog of 22,200 datasets. S...data.gov.lv CKAN Action APICKAN Action API for data.gov.lv, a consistent JSON-over-HTTP interface over a catalog of 1,531 datasets. St...data.sa.gov.au South Australia CKAN Action APICKAN Action API for data.sa.gov.au South Australia, a consistent JSON-over-HTTP interface over a catalog of...data.zagreb.hr Official Open Data Portal CKAN Action APICKAN Action API for data.zagreb.hr Official Open Data Portal, a consistent JSON-over-HTTP interface over a ...DataVic Victoria CKAN Action APICKAN Action API for DataVic Victoria, a consistent JSON-over-HTTP interface over a catalog of 5,585 dataset...dati.emilia-romagna.it CKAN Action APICKAN Action API for dati.emilia-romagna.it, a consistent JSON-over-HTTP interface over a catalog of 2,851 d...dati.gov.it CKAN Action APICKAN Action API for dati.gov.it, a consistent JSON-over-HTTP interface over a catalog of 65,388 datasets. S...Datos Abiertos ACUMAR CKAN Action APICKAN Action API for Datos Abiertos ACUMAR, a consistent JSON-over-HTTP interface over a catalog of 27 datas...Datos Abiertos ARSAT CKAN Action APICKAN Action API for Datos Abiertos ARSAT, a consistent JSON-over-HTTP interface over a catalog of 13 datase...Datos Abiertos Bogota CKAN Action APICKAN Action API for Datos Abiertos Bogota, a consistent JSON-over-HTTP interface over a catalog of 2,112 da...Datos abiertos CKAN Action APICKAN Action API for Datos abiertos, a consistent JSON-over-HTTP interface over a catalog of 667 datasets. S...Datos Abiertos Salud Argentina CKAN Action APICKAN Action API for Datos Abiertos Salud Argentina, a consistent JSON-over-HTTP interface over a catalog of...Datos Agricultura Argentina CKAN Action APICKAN Action API for Datos Agricultura Argentina, a consistent JSON-over-HTTP interface over a catalog of 15...Datos Argentina CKAN Action APICKAN Action API for Datos Argentina, a consistent JSON-over-HTTP interface over a catalog of an open datase...Datos Energia Argentina CKAN Action APICKAN Action API for Datos Energia Argentina, a consistent JSON-over-HTTP interface over a catalog of 178 da...Datos Provincia de Misiones CKAN Action APICKAN Action API for Datos Provincia de Misiones, a consistent JSON-over-HTTP interface over a catalog of 2 ...Datos Transporte Argentina CKAN Action APICKAN Action API for Datos Transporte Argentina, a consistent JSON-over-HTTP interface over a catalog of 48 ...Datos Turismo y Deportes Argentina CKAN Action APICKAN Action API for Datos Turismo y Deportes Argentina, a consistent JSON-over-HTTP interface over a catalo...datos.gob.mx - Sitio oficial de datos abiertos del Gobierno de la República CKAN Action APICKAN Action API for datos.gob.mx - Sitio oficial de datos abiertos del Gobierno de la República, a consiste...datos.gub.uy - Catálogo de Datos Abiertos CKAN Action APICKAN Action API for datos.gub.uy - Catálogo de Datos Abiertos, a consistent JSON-over-HTTP interface over a...datos.misiones.gov.ar CKAN Action APICKAN Action API for datos.misiones.gov.ar, a consistent JSON-over-HTTP interface over a catalog of 2 datase...DOE NETL Energy Data Exchange CKAN Action APICKAN Action API for DOE NETL Energy Data Exchange, a consistent JSON-over-HTTP interface over a catalog of ...Donnees Ouvertes Montreal CKAN Action APICKAN Action API for Donnees Ouvertes Montreal, a consistent JSON-over-HTTP interface over a catalog of 401 ...e-Gov Data Catalog CKAN Action APICKAN Action API for e-Gov Data Catalog, a consistent JSON-over-HTTP interface over a catalog of 18,366 data...ENERGYDATA.info CKAN Action APICKAN Action API for ENERGYDATA.info, a consistent JSON-over-HTTP interface over a catalog of 1,190 datasets...EUDAT B2FIND CKAN Action APICKAN Action API for EUDAT B2FIND, a consistent JSON-over-HTTP interface over a catalog of 1,466,694 dataset...Fortaleza Dados Abertos CKAN Action APICKAN Action API for Fortaleza Dados Abertos, a consistent JSON-over-HTTP interface over a catalog of 635 da...Gifu Prefecture Open Data CKAN Action APICKAN Action API for Gifu Prefecture Open Data, a consistent JSON-over-HTTP interface over a catalog of 1,88...Gouvernement ouvert Canada (FR) CKAN Action APICKAN Action API for Gouvernement ouvert Canada (FR), a consistent JSON-over-HTTP interface over a catalog o...gov.il CKAN Action APICKAN Action API for gov.il, a consistent JSON-over-HTTP interface over a catalog of 1,194 datasets. Standar...GovData Deutschland CKAN Action APICKAN Action API for GovData Deutschland, a consistent JSON-over-HTTP interface over a catalog of 151,112 da...GovData Germany CKAN Action APICKAN Action API for GovData Germany, a consistent JSON-over-HTTP interface over a catalog of 151,707 datase...Governo Aberto do Estado de São Paulo CKAN Action APICKAN Action API for Governo Aberto do Estado de São Paulo, a consistent JSON-over-HTTP interface over a cat...Greece National Data Portal CKAN Action APICKAN Action API for Greece National Data Portal, a consistent JSON-over-HTTP interface over a catalog of 21...Hawaii Open Data Portal CKAN Action APICKAN Action API for Hawaii Open Data Portal, a consistent JSON-over-HTTP interface over a catalog of 976 da...Humanitarian Data Exchange CKAN Action APICKAN Action API for Humanitarian Data Exchange, a consistent JSON-over-HTTP interface over a catalog of 27,...IATI Registry CKAN Action APICKAN Action API for IATI Registry, a consistent JSON-over-HTTP interface over a catalog of 13,656 datasets....Leeds Data Mill CKAN Action APICKAN Action API for Leeds Data Mill, a consistent JSON-over-HTTP interface over a catalog of an open datase...Madrid Region Open Data CKAN Action APICKAN Action API for Madrid Region Open Data, a consistent JSON-over-HTTP interface over a catalog of 2,282 ...Medicaid Open Data DKAN APIDKAN open-data API for Medicaid Open Data, covering a catalog of 255 datasets. Provides the DKAN search API...Milwaukee Open Data CKAN Action APICKAN Action API for Milwaukee Open Data, a consistent JSON-over-HTTP interface over a catalog of 186 datase...Montpellier Open Data CKAN Action APICKAN Action API for Montpellier Open Data, a consistent JSON-over-HTTP interface over a catalog of 0 datase...Montréal, Québec CKAN Action APICKAN Action API for Montréal, Québec, a consistent JSON-over-HTTP interface over a catalog of 401 datasets....NASA Open Data CKAN Action APICKAN Action API for NASA Open Data, a consistent JSON-over-HTTP interface over a catalog of 36,454 datasets...NHS Scotland Open Data CKAN Action APICKAN Action API for NHS Scotland Open Data, a consistent JSON-over-HTTP interface over a catalog of 104 dat...Niagara Open Data CKAN Action APICKAN Action API for Niagara Open Data, a consistent JSON-over-HTTP interface over a catalog of 529 datasets...Northern Territory Open Data CKAN Action APICKAN Action API for Northern Territory Open Data, a consistent JSON-over-HTTP interface over a catalog of 1...Official Ukrainian Government Portal CKAN Action APICKAN Action API for Official Ukrainian Government Portal, a consistent JSON-over-HTTP interface over a cata...Oklahoma CKAN Action APICKAN Action API for Oklahoma, a consistent JSON-over-HTTP interface over a catalog of 391 datasets. Standar...Ontario Data Catalogue CKAN Action APICKAN Action API for Ontario Data Catalogue, a consistent JSON-over-HTTP interface over a catalog of 2,950 d...Open Data Regione Toscana CKAN Action APICKAN Action API for Open Data Regione Toscana, a consistent JSON-over-HTTP interface over a catalog of 12,3...Open Data Trentino CKAN Action APICKAN Action API for Open Data Trentino, a consistent JSON-over-HTTP interface over a catalog of 1,381 datas...Open Government Canada CKAN Action APICKAN Action API for Open Government Canada, a consistent JSON-over-HTTP interface over a catalog of 47,344 ...opendata.gov.je CKAN Action APICKAN Action API for opendata.gov.je, a consistent JSON-over-HTTP interface over a catalog of 118 datasets. ...OpenData.HRO - Portal für offene Data der Hansestadt Rostock CKAN Action APICKAN Action API for OpenData.HRO - Portal für offene Data der Hansestadt Rostock, a consistent JSON-over-HT...OpenDataNI (Northern Ireland) CKAN Action APICKAN Action API for OpenDataNI (Northern Ireland), a consistent JSON-over-HTTP interface over a catalog of ...OPSI Slovenia CKAN Action APICKAN Action API for OPSI Slovenia, a consistent JSON-over-HTTP interface over a catalog of 8,875 datasets. ...Portal Datos Abiertos Ayuntamiento de Málaga CKAN Action APICKAN Action API for Portal Datos Abiertos Ayuntamiento de Málaga, a consistent JSON-over-HTTP interface ove...Portal de Dados Abertos da Cidade de São Paulo CKAN Action APICKAN Action API for Portal de Dados Abertos da Cidade de São Paulo, a consistent JSON-over-HTTP interface o...Portal de Dados Abertos – Prefeitura de Belo Horizonte CKAN Action APICKAN Action API for Portal de Dados Abertos – Prefeitura de Belo Horizonte, a consistent JSON-over-HTTP int...Portal de Dados Urbanos PPGAU UFF - Open data portal for Urban Resarch CKAN Action APICKAN Action API for Portal de Dados Urbanos PPGAU UFF - Open data portal for Urban Resarch, a consistent JS...Portal de Datos Abiertos Republica Dominicana CKAN Action APICKAN Action API for Portal de Datos Abiertos Republica Dominicana, a consistent JSON-over-HTTP interface ov...Portal oficial Ayuntamiento de Rivas Vaciamadrid CKAN Action APICKAN Action API for Portal oficial Ayuntamiento de Rivas Vaciamadrid, a consistent JSON-over-HTTP interface...Portale Dati aperti del Comune di Matera CKAN Action APICKAN Action API for Portale Dati aperti del Comune di Matera, a consistent JSON-over-HTTP interface over a ...Queensland Geoscience Data CKAN Action APICKAN Action API for Queensland Geoscience Data, a consistent JSON-over-HTTP interface over a catalog of 190...Recife City Open Data CKAN Action APICKAN Action API for Recife City Open Data, a consistent JSON-over-HTTP interface over a catalog of 219 data...San Bernardino County ATC OpenData CKAN Action APICKAN Action API for San Bernardino County ATC OpenData, a consistent JSON-over-HTTP interface over a catalo...Satu Data Aceh CKAN Action APICKAN Action API for Satu Data Aceh, a consistent JSON-over-HTTP interface over a catalog of 4,176 datasets....Satu Data Bencana Indonesia (BNPB) CKAN Action APICKAN Action API for Satu Data Bencana Indonesia (BNPB), a consistent JSON-over-HTTP interface over a catalo...Satu Data Kalimantan Timur CKAN Action APICKAN Action API for Satu Data Kalimantan Timur, a consistent JSON-over-HTTP interface over a catalog of 12,...Satu Data Semarang Regency CKAN Action APICKAN Action API for Satu Data Semarang Regency, a consistent JSON-over-HTTP interface over a catalog of 467...Spatial Hub Scotland CKAN Action APICKAN Action API for Spatial Hub Scotland, a consistent JSON-over-HTTP interface over a catalog of 496 datas...Tokyo Metropolitan Open Data CKAN Action APICKAN Action API for Tokyo Metropolitan Open Data, a consistent JSON-over-HTTP interface over a catalog of 9...Transparency Portal for the City of Karlsruhe, Germany CKAN Action APICKAN Action API for Transparency Portal for the City of Karlsruhe, Germany, a consistent JSON-over-HTTP int...US Small Business Administration Open Data CKAN Action APICKAN Action API for US Small Business Administration Open Data, a consistent JSON-over-HTTP interface over ...Virginia Open Data CKAN Action APICKAN Action API for Virginia Open Data, a consistent JSON-over-HTTP interface over a catalog of 33,247 data...Western Australia Data Catalogue CKAN Action APICKAN Action API for Western Australia Data Catalogue, a consistent JSON-over-HTTP interface over a catalog ...Yokohama City Open Data CKAN Action APICKAN Action API for Yokohama City Open Data, a consistent JSON-over-HTTP interface over a catalog of 657 da...Linqto WordPress REST APIThe linqto.com marketing, blog, and market-insights site runs on WordPress and exposes the standard public ...JSON-RPC 2.0JSON-RPC 2.0 is a stateless, light-weight remote procedure call (RPC) protocol encoded in JSON. It is widel...Feign GsonFeign Gson module provides Google Gson-based JSON encoding and decoding for Feign clients, useful in projec...Feign JacksonFeign Jackson module provides Jackson-based JSON encoding and decoding for Feign-annotated client interface...Jakarta JSON BindingJakarta JSON Binding (formerly JSON-B) is a binding framework for converting Java objects to and from JSON ...Jakarta JSON ProcessingJakarta JSON Processing (formerly JSON-P) provides an API to parse, generate, transform, and query JSON doc...Montenegro Open Data CKAN Action APICKAN Action API for Montenegro Open Data, a consistent JSON-over-HTTP interface over a catalog of 894 datas...BBDO WordPress REST APIbbdo.com runs on WordPress (WP Engine, fronted by Cloudflare) and leaves the WordPress REST API open for an...HAL - Hypertext Application LanguageA simple format for including hypermedia links in JSON or XML API responses. HAL uses _links for links and ...JSON:APIA specification for building APIs in JSON that standardizes resource representation, relationships, error h...Nixpacks Build PlanThe Nixpacks build plan is the JSON representation of how a source directory will be turned into a containe...Acre Open Data CKAN Action APICKAN Action API for Acre Open Data, ~20 datasets. Base URL https://dados.ac.gov.br/api/3/action/.Bahia Blanca Open Data CKAN Action APICKAN Action API for Bahia Blanca Open Data, ~221 datasets. Base URL https://datos.bahia.gob.ar/api/3/action/.Bahia Open Data CKAN Action APICKAN Action API for Bahia Open Data, ~21 datasets. Base URL https://dados.ba.gov.br/api/3/action/.Entre Rios Open Data CKAN Action APICKAN Action API for Entre Rios Open Data, covering ~121 datasets. Base URL https://datos.entrerios.gov.ar/a...Espirito Santo Open Data CKAN Action APICKAN Action API for Espirito Santo Open Data, covering ~452 datasets. Base URL https://dados.es.gov.br/api/...Ethiopia Open Data CKAN Action APICKAN Action API for Ethiopia Open Data, ~3 datasets. Base URL https://data.gov.et/api/3/action/.Lazio Open Data CKAN Action APICKAN Action API for Lazio Open Data, covering ~406 datasets. Base URL https://dati.lazio.it/api/3/action/.Leipzig Open Data CKAN Action APICKAN Action API for Leipzig Open Data, ~395 datasets. Base URL https://opendata.leipzig.de/api/3/action/.Liguria Open Data CKAN Action APICKAN Action API for Liguria Open Data, ~123 datasets. Base URL https://dati.regione.liguria.it/api/3/action/.Mendoza Open Data CKAN Action APICKAN Action API for Mendoza Open Data, ~204 datasets. Base URL https://datosabiertos.mendoza.gov.ar/api/3/a...Messina Open Data CKAN Action APICKAN Action API for Messina Open Data, ~109 datasets. Base URL https://opendata.comune.messina.it/api/3/act...Modena Open Data CKAN Action APICKAN Action API for Modena Open Data, ~111 datasets. Base URL https://opendata.comune.modena.it/api/3/action/.Naples Open Data CKAN Action APICKAN Action API for Naples Open Data, ~36 datasets. Base URL https://dati.comune.napoli.it/api/3/action/.Oracle Database 11g REST Data ServicesRESTful web services for Oracle Database.Pakistan Open Data CKAN Action APICKAN Action API for Pakistan Open Data, covering ~1,471 datasets. Base URL https://opendata.com.pk/api/3/ac...Pernambuco Open Data CKAN Action APICKAN Action API for Pernambuco Open Data, covering ~40 datasets. Base URL https://dados.pe.gov.br/api/3/act...Rondonia Open Data CKAN Action APICKAN Action API for Rondonia Open Data, ~14 datasets. Base URL https://dados.ro.gov.br/api/3/action/.Santa Catarina Open Data CKAN Action APICKAN Action API for Santa Catarina Open Data, covering ~112 datasets. Base URL https://dados.sc.gov.br/api/...PlusMargin WordPress REST APIThe stock WordPress REST API exposed by PlusMargin's marketing site. The root discovery document at /wp-jso...
Minimal 41 Almost no public developer surface
Construction Monitor Permits APIREST + JSON service backed by Elasticsearch that lets partners search building permits, retrieve full permi...Opolskie Open Data DKAN APIDKAN API for Opolskie Open Data.Zurich Open Data CKAN Action APICKAN Action API for Zurich Open Data, ~925 datasets. Base URL https://data.stadt-zuerich.ch/api/3/action/.Ireland Open Data Catalogue CKAN Action APICKAN API for Ireland Open Data Catalogue, ~1,467 datasets.Lecce Open Data CKAN Action APICKAN Action API for Lecce Open Data, ~480 datasets.Montenegro Open Data (data.gov.me) CKAN Action APICKAN API for Montenegro Open Data (data.gov.me), ~894 datasets.Neolaiacampus Open Data CKAN Action APICKAN API for Neolaiacampus Open Data, ~70 datasets.Umbria Region Open Data CKAN Action APICKAN API for Umbria Region Open Data, ~457 datasets.BoxxApps Open Data CKAN Action APICKAN API for BoxxApps Open Data, ~719 datasets.Cali Open Data CKAN Action APICKAN Action API for Cali Open Data, ~663 datasets. Base URL https://datos.cali.gov.co/api/3/action/.Companies Registration Office Open Data CKAN Action APICKAN Action API for Companies Registration Office Open Data, ~2 datasets. Base URL https://opendata.cro.ie/...Consip Open Data CKAN Action APICKAN API for Consip Open Data, ~16 datasets.Incheon Open Data DKAN APIDKAN open-data API for Incheon Open Data.Irish Agriculture Open Data CKAN Action APICKAN Action API for Irish Agriculture Open Data, ~56 datasets. Base URL https://opendata.agriculture.gov.ie...Irish Housing Open Data CKAN Action APICKAN Action API for Irish Housing Open Data, ~461 datasets. Base URL https://opendata.housing.gov.ie/api/3/...Kildare County Council Open Data CKAN Action APICKAN Action API for Kildare County Council Open Data, ~80 datasets. Base URL https://data.kildarecoco.ie/ap...Kozadat Hungary Open Data CKAN Action APICKAN API for Kozadat Hungary Open Data, ~2,283 datasets.Limerick Open Data Catalogue CKAN Action APICKAN Action API for Limerick Open Data Catalogue, ~82 datasets. Base URL https://datacatalog.limerick.ie/ap...Lisbon Open Data CKAN Action APICKAN Action API for Lisbon Open Data, ~404 datasets.Maggioli Cloud Open Data CKAN Action APICKAN API for Maggioli Cloud Open Data, ~6,061 datasets.Montevideo Open Data CKAN Action APICKAN Action API for Montevideo Open Data, ~155 datasets. Base URL https://ckan.montevideo.gub.uy/api/3/acti...NBCO Open Data CKAN Action APICKAN Action API for NBCO Open Data, ~2 datasets. Base URL https://data.nbco.gov.ie/api/3/action/.NCSE Open Data CKAN Action APICKAN Action API for NCSE Open Data, ~70 datasets. Base URL https://opendata.ncse.ie/api/3/action/.Rimini Open Data CKAN Action APICKAN Action API for Rimini Open Data, ~72 datasets.Rome Open Data CKAN Action APICKAN API for Rome Open Data, ~365 datasets.Sonora Open Data CKAN Action APICKAN Action API for Sonora Open Data, ~90 datasets. Base URL https://datos.sonora.gob.mx/api/3/action/.South Tyrol Civis Open Data CKAN Action APICKAN API for South Tyrol Civis Open Data, ~938 datasets.Teagasc Open Data CKAN Action APICKAN Action API for Teagasc Open Data, ~18 datasets. Base URL https://opendata.teagasc.ie/api/3/action/.Trento Open Data CKAN Action APICKAN Action API for Trento Open Data, ~0 datasets. Base URL https://opendata.comune.trento.it/api/3/action/.Turin Open Data CKAN Action APICKAN API for Turin Open Data, ~2,076 datasets.Tusla Child & Family Agency Open Data CKAN Action APICKAN Action API for Tusla Child & Family Agency Open Data, ~1,492 datasets. Base URL https://datacatalog.tu...Uruguay Open Data Catalogue CKAN Action APICKAN Action API for Uruguay Open Data Catalogue, ~2,515 datasets. Base URL https://test.catalogodatos.gub.u...data.egov.bg REST APICustom Laravel REST API for data.egov.bg with action-named endpoints under /api, almost all POST with JSON ...data.gov.hr CKAN Action APICKAN Action API for data.gov.hr, a consistent JSON-over-HTTP interface over a catalog of roughly 3,858 data...dataset.gov.md CKAN Action APICKAN Action API for dataset.gov.md, a consistent JSON-over-HTTP interface over a catalog of roughly 1,275 d...Lexoo WordPress REST APIThe Lexoo website is built on WordPress and exposes the standard WordPress REST API at /wp-json/, serving J...University of Bologna Open Data CKAN Action APICKAN API for University of Bologna Open Data, ~34 datasets.UPM YODA Open Data Portal CKAN Action APICKAN API for UPM YODA Open Data Portal, ~201 datasets.data.gov.mk CKAN Action APICKAN Action API for data.gov.mk, a consistent JSON-over-HTTP interface over the national catalog. Standard ...data.gov.rs uData REST APIuData REST API for data.gov.rs, a consistent JSON-over-HTTP interface over a catalog of roughly 3,452 datas...Open Data Albania REST APIBespoke REST API for opendata.gov.al at same-origin /api, with action-style routes. Known endpoints include...
Score breakdown
Frequency
65.7
log-scaled weighted occurrences
Breadth
7.5
spread across providers
Quality lift
23.5
mean composite of providers using it
Cohesion
72.0
strength of nearest seed neighbor
Related tags
DCAT 178 co-occurrences
CKAN 175 co-occurrences
Action API 161 co-occurrences
Data Catalog 179 co-occurrences
Government Data 165 co-occurrences
Catalog 194 co-occurrences
Open Data 195 co-occurrences
REST 226 co-occurrences
Where this tag comes from
Api tag269
Provider tag16
Openapi tag5
Openapi op tag11
Cohort brief
Auto-generatedThe 274 providers in the APIs.io catalog tagged JSON, scored on the Kin Score. Every figure below is computed from the catalog — nothing here is written.
Providers
274
all scored
Mean Kin Score
20.1
-0.6 vs catalog 20.7
Mean Agent Readiness
8.5
-1.2 vs catalog 9.7
Spread
5–87.9
median 15.7 · σ 12.8
How the 274 split by band
Exemplar 3Strong 3Developing 21Thin 31Emerging 174Minimal 42
Facet averages, against the whole catalog
| Facet | This cohort | Catalog | Difference | Scored |
|---|---|---|---|---|
| Discoverability | 67.3 | 60.4 | +6.9 | 274 |
| Operational Transparency | 16.4 | 11.3 | +5.1 | 274 |
| Access Clarity | 26.4 | 22.3 | +4.1 | 274 |
| Contract Governance | 5.7 | 6.4 | -0.7 | 274 |
| Developer Ergonomics | 14.5 | 17.9 | -3.4 | 274 |
| Contract Quality | 12.1 | 17.5 | -5.4 | 274 |
A facet is averaged over the members that carry it, not over the whole cohort — the “Scored” column is that count. Averaging an absent facet as zero would score our own coverage gaps as the providers’ posture.
What this cohort publishes
| Artifact | This cohort | Catalog | Difference |
|---|---|---|---|
| MCP server (any) | 8% | 16% | -8 |
| MCP server (first-party) | 6% | 7% | -1 |
| Agent Skills | 0% | 0% | 0 |
| OAuth scopes | 10% | 9% | +1 |
| Security | 99% | 88% | +11 |
| Arazzo workflows | 0% | 2% | -2 |
| Governance rules | 18% | 13% | +5 |
mcp_pct counts any mcp/ artifact including ones API Evangelist derived from the provider OpenAPI; mcp_first_party_pct counts only servers the provider publishes. Prefer the latter.
Top by Kin Score
- 1 OpenMercantil 87.9
- 2 Treasure Data 76.7
- 3 Plinth US Grants Data 70.5
- 4 IBM 62.6
- 5 NeverBounce 62.2
- 6 Marketo 55.7
- 7 LlamaParse 52.2
- 8 Couchbase 50.6
- 9 Australian National University 48.8
- 10 BrewPage 48.2
Top by Agent Readiness
- 1 Plinth US Grants Data 51.8
- 2 Treasure Data 48.4
- 3 Olipop 47.5
- 4 Dolls Kill 46.4
- 5 BulletProof 43.9
- 6 ColdSnap 42.4
- 7 OpenMercantil 42.3
- 8 IBM 39.4
- 9 Voyage Foods 39.2
- 10 NeverBounce 36.4
All 274 members of this roster resolve to a scored provider in
the catalog.Generated from the catalog build of
25 August 2026, across 26891
providers, using the same computation served by the
APIs.io cohort API. Briefs are published for rosters of
5 or more scored providers; below that a distribution is not meaningful.
Work with this as data
Every tag here is available over the APIs.io API and to AI agents over MCP.
MCP server
One button, every client — Claude, Cursor, VS Code and the rest.
https://apis.io/mcp
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.
Call it yourself
curl for this page
This tag
curl "https://apis.io/api/v1/tags/json"
All tags
curl "https://apis.io/api/v1/tags?limit=25"
As a scored cohort
curl "https://apis.io/api/v1/cohorts/tag/json"
The distribution (Pro)
curl "https://apis.io/api/v1/cohorts/tag/json/stats" \
-H "X-API-Key: $APIS_IO_KEY"Discovery needs no key. Ratings and market analysis are Pro.