niche · 0.0 market industry

Japan

Score 20.1 / 100 111 providers 9 APIs Search apis.io →

Providers using this tag (111)

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

Exemplar 2 Complete, well-documented, and agent-ready
PAY.JPPaymentsFintechCredit Cards1 API76.4LINEMessagingChatbotsSocial LoginMini Apps9 APIs69.9
Strong 2 Solid coverage with minor gaps
KUFUCompanyHuman ResourcesPayrollEmployee Data1 API56.63-shakeCompanySREData IntegrationETL1 API56.5
Developing 10 Usable, with meaningful gaps to close
SoracomIoTCellularLPWANSIM10 APIs54.1JPX (Japan Exchange Group)FinancialMarket DataStocksExchange8 APIs53.4SUPER STUDIOCompanyE-CommerceCommerceSubscription Commerce3 APIs51.2University of TokyoUniversityHigher EducationEducation3 APIs49.6MeetsMoreCompanyMarketplaceLocal ServicesHome Services2 APIs47.6Kyoto UniversityUniversityHigher EducationEducation2 APIs43.8AcallWorkplace ManagementVisitor ManagementMeeting Room BookingDesk Booking1 API43.3Magic MomentCompanyEnterpriseSalesArtificial Intelligence10 APIs40.2PaidyBuy Now Pay LaterPaymentsCheckout1 API40.1SmartHRHuman ResourcesHRISLabor ManagementPayroll1 API39.3
Thin 22 Limited public surface area
Preferred NetworksCompanyArtificial IntelligenceMachine-LearningLLM1 API39.2Tokyo Institute of TechnologyEducationHigher EducationUniversityInstitute of Technology2 APIs38.7Agri Info DesignAgricultureAgTechPrecision AgriculturePrecision Farming8 APIs37.5freeeAccountingBookkeepingHuman ResourcesPayroll1 API37.2LayerXCompanyBack OfficeExpense Management1 API37.0Nagoya UniversityEducationHigher EducationUniversity5 APIs36.7Keio UniversityEducationHigher EducationUniversity4 APIs36.4KOMOJUPaymentsPayment GatewayKonbini1 API36.4Kyushu UniversityUniversityHigher EducationEducationResearch2 APIs36.4RakutenE-CommerceTravelBooksRecipes1 API36.1LogilessLogisticsE-CommerceOrder ManagementWarehouse Management1 API35.8TableCheckRestaurantReservationsBookingHospitality6 APIs35.3PayPayCompanyFintechPaymentsMobile Payments1 API35.1Tohoku UniversityUniversityHigher EducationEducationResearch5 APIs34.0MakeLeapsCompanyInvoicingBillingAccounting1 API33.3Waseda UniversityUniversityHigher EducationEducation10 APIs32.4JAXASpaceSatelliteEarth ObservationRemote Sensing1 API30.4LegalOnCompanyTechnologyLegalLegal Technology1 API29.8NTT DocomoTelecommunicationsMobile Network OperatorNetwork APIs2 APIs29.7J-QuantsFinancial DataInvestmentStock Market1 API27.5UnifaCompanyChildcareEducation TechnologyEarly Childhood Education26.6WoodstockCompanyInvestingStock TradingBrokerage26.3
Emerging 27 Early or largely undocumented
1→10, Inc.Creative TechnologyExperience DesignXRArtificial Intelligence23.5Hokkaido UniversityEducationHigher EducationUniversity10 APIs23.2KyashCompanyFinancial-ServicesPaymentsFintech21.2ANDPADCompanyTechnologyConstructionConstruction Management1 API20.4AgroDesign StudiosAgricultureAgTechBiotechnologyLife Sciences2 APIs19.7TrustdockCompanyeKYCIdentity VerificationKYC19.1AI modelArtificial IntelligenceGenerative AIE-Commerce1 API17.3NTTTelecommunicationsMobile NetworkEnterprise CloudSmart Data Platform6 APIs17.0aceRNA TechnologiesCompanyBiotechnologyTherapeuticsGenetic Medicine1 API16.8GrafferCompanyGovTechGovernmentArtificial Intelligence15.8BODIK ODCSOpen DataCKANData CatalogDCAT1 API15.7DATA GO JPOpen DataCKANData CatalogDCAT1 API15.7e-Gov Data CatalogOpen DataCKANData CatalogDCAT1 API15.7Gifu Prefecture Open DataOpen DataCKANData CatalogDCAT1 API15.7Tokyo Metropolitan Open DataOpen DataCKANData CatalogDCAT1 API15.7Yokohama City Open DataOpen DataCKANData CatalogDCAT1 API15.7Ulysses (Kaminashi)CompanySoftware-as-a-ServiceFrontline OperationsManufacturing15.5SoucoCompanyLogisticsWarehousingSupply Chain15.4SpiberCompanyBiotechnologyMaterials ScienceSynthetic Biology1 API15.1Takeda Pharmaceutical CompanyCompanyPharmaceuticalsHealthcareLife Sciences14.0HiJoJo PartnersCompanyFinancial-ServicesInvestment ManagementPrivate Markets13.5ZehitomoCompanyLocal ServicesMarketplace12.3Leaner TechnologiesCompanyCloudProcurementPurchasing12.2Life is TechCompanyEducationEdTechLearning12.0HokanCompanyInsurtechInsuranceCRM11.5Aerial PartnersCompanyCryptocurrencyDigital AssetsAccounting11.4ClassActionCompanyLegalLegal TechClass Action11.0
Minimal 46 Almost no public developer surface
App-CMCompanyAdvertisingVideo AdvertisingAdTech10.9HERPCompanyEnterpriseHuman ResourcesRecruiting10.8KuraseruCompanyHealthcareElder CareNursing Care10.8DiniiCompanyConsumerRestaurantPoint-of-Sale10.6PokelaboCompanyConsumerGamingMobile Games10.6Aeterlink Corp.CompanyWireless PowerIoTHardware10.4Gojo & CompanyCompanyFinancial-ServicesFinancial InclusionMicrofinance10.4TyffonCompanyEntertainmentVirtual RealityAugmented Reality10.4Linc'wellCompanyConsumerHealthcareHealth Technology10.0Rakuten MobileTelecommunicationsMobile Network OperatorCarrier5G3 APIs9.8SkyDriveCompanyAerospaceAviationAdvanced Air Mobility9.7AeronextCompanyDronesUAVLogistics9.6KoskaCompanyManufacturingCost ManagementCost Accounting8.8ACROVE, Inc.CompanyE-CommerceMarketplaceBusiness Intelligence8.7Connected RoboticsCompanyRoboticsFood TechAutomation8.5Every.tvCompanyConsumerMediaVideo8.5SpaceeCompanyReal-EstateCo-WorkingSpace Rental8.5TokyoOtakuModeCompanyAnimeMangaMerchandise8.4ShippioCompanyLogisticsFreight ForwardingSupply Chain8.1AgripediaCompanyAgricultureAgTechFarm Management7.9ElephantechCompanyManufacturingElectronicsHardware7.9ABABACompanyHuman ResourcesRecruitingTalent Acquisition7.6Advance CompositeCompanyManufacturingMaterials ScienceAdvanced Materials7.6AgristCompanyAgricultureAgTechRobotics7.6enechainCompanyEnterpriseEnergyEnergy Trading7.6EVERSTEELCompanyFrontier TechArtificial IntelligenceComputer-Vision7.6Integral Geometry ScienceCompanyMedical DevicesMedical ImagingHealthcare7.6newmoCompanyConsumerMobilityTransportation7.6CAPSCompanyHealthcareHealth ManagementClinics7.1Excite Japan Co., Ltd. (JASDAQ:3754)CompanyInternet MediaWeb Portal7.1KakehashiCompanyHealthcarePharmacySoftware-as-a-Service7.0AI Medical ServiceCompanyHealth TechArtificial IntelligenceMedical Imaging6.2Ocean Network ExpressOcean ShippingContainer ShippingLiner ShippingLogistics5.7DverseCompanyDigital TwinGeospatialData Visualization5.0Fact Base Inc.CompanyManufacturingDigitization5.0StailerCompanyEnterpriseRetailE-Commerce5.0SumutasuCompanyReal-EstatePropTech5.0VisasQCompanyEnterpriseExpert NetworkKnowledge Sharing5.0AculysCompanyHealth TechPharmaceuticalsBiotech4.7SansanCompanyEnterpriseContact ManagementBusiness Cards4.6KDDITelecommunicationsMobile Network OperatorCarrier4.4AillisCompanyHealthcareMedical DevicesArtificial Intelligence3.3HabittoCompanyFintechBankingSavings Account1.5Pocket MenuCompanyRestaurantReservationsPayments1.5SODACompanyConsumerMarketplaceE-Commerce1.5P2P, Inc.CompanyInsuranceInsurtechMicro-insurance0.9
Unrated 2 Not yet scored
ActEvolveCompanyDefunctAcquiredVirtual RealityHiCustomerCompanyCustomer SuccessCustomer Success ManagementSoftware-as-a-Service

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 →

Developing 1 Usable, with meaningful gaps to close
Paidy CheckoutJavaScript-based checkout integration that enables consumers to authenticate with Paidy and authorize payme...40.1
Thin 7 Limited public surface area
PLaMo APIThe PLaMo API is Preferred Networks' cloud service for its domestically developed PLaMo large language mode...39.2GakuNin academic access management federation membershipNagoya University is a participating institution in GakuNin (学術認証フェデレーション), the Japanese national academic ...36.7Rakuten GORA Golf Course Search APISearch Rakuten GORA Japanese golf courses by name, area, and facility attributes.36.1Rakuten Pay Merchant APIRakuten Pay is Rakuten's e-money / QR payment service for Japan, integrated by merchants directly or via PS...36.1Rakuten Travel Area Class APIReturns Rakuten Travel's hierarchical Japanese area classification (prefecture / region / detail), used to ...36.1Rakuten Travel Simple Hotel Search APILightweight keyword and area search over Rakuten Travel's Japanese hotel inventory, returning hotel name, l...36.1J-Quants APIThe J-Quants API (V2) is a data distribution service operated by Japan Exchange Group (JPX) that makes it e...27.5
Emerging 1 Early or largely undocumented
GakuNin Academic Access Management FederationMembership of GakuNin (学術認証フェデレーション), the Japanese national academic identity federation operated by the Na...23.2

Score breakdown

Frequency
56.6
log-scaled weighted occurrences
Breadth
3.1
spread across providers
Quality lift
23.2
mean composite of providers using it
Cohesion
3.7
strength of nearest seed neighbor

Related tags

Shibboleth 9 co-occurrences ROR 6 co-occurrences Open Access 9 co-occurrences Crossref 5 co-occurrences Research Computing 5 co-occurrences Institutional Repository 5 co-occurrences OAI-PMH 8 co-occurrences

Where this tag comes from

Provider tag111
Api tag9

Cohort brief

Auto-generated

The 106 providers in the APIs.io catalog tagged Japan, scored on the Kin Score. Every figure below is computed from the catalog — nothing here is written.

Providers
106
all scored
Mean Kin Score
20.9
-3.5 vs catalog 24.4
Mean Agent Readiness
8.7
-4.0 vs catalog 12.7
Spread
1.5–76.4
median 15.5 · σ 16.3
How the 106 split by band
Exemplar 2Strong 2Developing 10Thin 22Emerging 27Minimal 43
Facet averages, against the whole catalog
FacetThis cohortCatalogDifferenceScored
Access Clarity 27.5 27.2 +0.3 106
Discoverability 60.8 61.4 -0.6 106
Contract Governance 5.2 6.6 -1.4 106
Operational Transparency 12.5 14.4 -1.9 106
Developer Ergonomics 18.5 23.8 -5.3 106
Contract Quality 13.2 20.4 -7.2 106

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
ArtifactThis cohortCatalogDifference
MCP server (any) 7% 11% -4
MCP server (first-party) 8% 13% -5
Agent Skills 0% 0% 0
OAuth scopes 6% 12% -6
Security 98% 96% +2
Arazzo workflows 1% 2% -1
Governance rules 6% 13% -7

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. 1 PAY.JP 76.4
  2. 2 LINE 69.9
  3. 3 KUFU 56.6
  4. 4 3-shake 56.5
  5. 5 Soracom 54.1
  6. 6 JPX (Japan Exchange Group) 53.4
  7. 7 SUPER STUDIO 51.2
  8. 8 University of Tokyo 49.6
  9. 9 MeetsMore 47.6
  10. 10 Kyoto University 43.8
Top by Agent Readiness
  1. 1 LINE 44.9
  2. 2 SUPER STUDIO 41.2
  3. 3 Paidy 36.6
  4. 4 Agri Info Design 31.8
  5. 5 Logiless 31
  6. 6 PayPay 30.3
  7. 7 University of Tokyo 30
  8. 8 Soracom 29.8
  9. 9 TableCheck 29.8
  10. 10 PAY.JP 29.6
All 111 members of this roster resolve to a scored provider in the catalog.Generated from the catalog build of 21 September 2026, across 27638 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.
All 92 tools →

Call it yourself

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

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