niche · 2.5 market industry

Japan

Score 19.4 / 100 81 providers 11 APIs Search apis.io →
Variants seen in the corpus: Japanjapan

Providers using this tag (81)

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

Exemplar 2 Complete, well-documented, and agent-ready
PAY.JPPaymentsFintechCredit Cards1 API78.0LINEMessagingChatbotsSocial LoginMini Apps9 APIs69.5
Strong 1 Solid coverage with minor gaps
KUFUCompanyHuman ResourcesHR TechPayroll1 API57.5
Developing 8 Usable, with meaningful gaps to close
JPX (Japan Exchange Group)FinancialMarket DataStocksExchange8 APIs53.4SoracomIoTCellularLPWANSIM10 APIs52.2Tokyo Institute of TechnologyEducationHigher EducationUniversityInstitute of Technology1 API48.5University of TokyoUniversityHigher EducationEducation3 APIs43.6Kyoto UniversityUniversityHigher EducationEducation2 APIs43.4PaidyBuy Now Pay LaterBNPLPayments1 API41.0Magic MomentCompanyEnterpriseSalesArtificial Intelligence10 APIs40.7SmartHRHRHuman ResourcesHRISLabor Management1 API40.7
Thin 13 Limited public surface area
freeeAccountingBookkeepingHRPayroll1 API38.6KOMOJUPaymentsPayment GatewayKonbini1 API37.8TableCheckRestaurantReservationsBookingHospitality6 APIs36.6LogilessLogisticsE-CommerceOrder ManagementWarehouse Management1 API36.5RakutenE-CommerceTravelBooksRecipes1 API36.1PayPayCompanyFintechPaymentsMobile Payments1 API35.2MakeLeapsCompanyInvoicingBillingAccounting1 API33.3JAXASpaceSatelliteEarth ObservationRemote Sensing1 API30.4LegalOnCompanyTechnologyLegalLegal Technology1 API29.8NTT DocomoTelecommunicationsMobile Network OperatorNetwork APIs2 APIs29.7J-QuantsFinancial DataInvestmentStock Market1 API28.2Kyushu UniversityEducationHigher EducationUniversityResearch2 APIs27.2WoodstockCompanyInvestingStock TradingBrokerage26.3
Emerging 22 Early or largely undocumented
Waseda UniversityEducationHigher EducationUniversityResearch3 APIs23.2Keio UniversityEducationHigher EducationUniversityResearch1 API22.9Nagoya UniversityEducationHigher EducationUniversityResearch1 API22.9KyashCompanyFinancial-ServicesPaymentsFintech21.2ANDPADCompanyTechnologyConstructionConstruction Management1 API20.4Tohoku UniversityEducationHigher EducationUniversityResearch1 API19.5TrustdockCompanyeKYCIdentity VerificationKYC19.1Hokkaido UniversityEducationHigher EducationUniversityResearch1 API18.9NTTTelecommunicationsMobile NetworksEnterprise CloudSmart Data Platform6 APIs17.0GrafferCompanyGovTechGovernmentArtificial 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 Chain15.4ZehitomoCompanyLocal ServicesMarketplace12.3Leaner TechnologiesCompanyCloudProcurementPurchasing12.2HokanCompanyInsurTechInsuranceCRM11.5ClassActionCompanyLegalLegal TechClass Action11.0
Minimal 35 Almost no public developer surface
App-CMCompanyAdvertisingVideo AdvertisingAdTech10.9HERPCompanyEnterpriseHR TechRecruiting10.8KuraseruCompanyHealthcareElder CareNursing Care10.8DiniiCompanyConsumerRestaurantPoint-of-Sale10.6PokelaboCompanyConsumerGamingMobile Games10.6TyffonCompanyEntertainmentVirtual RealityAugmented Reality10.4Linc'wellCompanyConsumerHealthcareHealth Technology10.0Rakuten MobileTelecommunicationsMobile Network OperatorCarrier5G3 APIs9.8KoskaCompanyManufacturingCost ManagementCost Accounting8.8Connected RoboticsCompanyRoboticsFoodtechAutomation8.5Every.tvCompanyConsumerMediaVideo8.5SpaceeCompanyReal-EstateCo-WorkingSpace Rental8.5TokyoOtakuModeCompanyAnimeMangaMerchandise8.4ShippioCompanyLogisticsFreight ForwardingSupply Chain8.1enechainCompanyEnterpriseEnergyEnergy Trading7.6EVERSTEELCompanyFrontier TechArtificial IntelligenceComputer-Vision7.6newmoCompanyConsumerMobilityTransportation7.6CAPSCompanyHealthcareHealth 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 OperatorCarrier4.4HiCustomerCompanyCustomer SuccessCustomer Success ManagementSoftware-as-a-Service2.2HabittoCompanyFintechBankingSavings Account1.5Pocket MenuCompanyRestaurantReservationsPayments1.5SODACompanyConsumerMarketplaceE-Commerce1.5P2P, Inc.CompanyInsuranceInsurtechMicro-insurance0.9

APIs with this tag (6)

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...41.0
Thin 5 Limited public surface area
Rakuten 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...28.2

Score breakdown

Frequency
54.1
log-scaled weighted occurrences
Breadth
2.2
spread across providers
Quality lift
22.5
mean composite of providers using it
Cohesion
5.1
strength of nearest seed neighbor

Related tags

Institutional Repository 6 co-occurrences Open Access 8 co-occurrences OAI-PMH 8 co-occurrences University 9 co-occurrences Action API 6 co-occurrences Higher Education 9 co-occurrences DCAT 6 co-occurrences CKAN 6 co-occurrences

Where this tag comes from

Provider tag81
Api tag11

Cohort brief

Auto-generated

The 81 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
81
all scored
Mean Kin Score
19.2
-1.5 vs catalog 20.7
Mean Agent Readiness
7.2
-2.5 vs catalog 9.7
Spread
0.9–78.6
median 14.7 · σ 16.3
How the 81 split by band
Exemplar 2Strong 2Developing 5Thin 13Emerging 24Minimal 35
Facet averages, against the whole catalog
FacetThis cohortCatalogDifferenceScored
Access Clarity 24.6 22.3 +2.3 81
Operational Transparency 13.5 11.3 +2.2 81
Discoverability 60.8 60.4 +0.4 81
Contract Governance 4.3 6.4 -2.1 81
Developer Ergonomics 15.3 17.9 -2.6 81
Contract Quality 12.8 17.5 -4.7 81

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) 10% 16% -6
MCP server (first-party) 4% 7% -3
Agent Skills 0% 0% 0
OAuth scopes 5% 9% -4
Security 95% 88% +7
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 78.6
  2. 2 LINE 71.2
  3. 3 KUFU 58.2
  4. 4 Soracom 55.8
  5. 5 JPX (Japan Exchange Group) 53.4
  6. 6 University of Tokyo 47.7
  7. 7 Kyoto University 43.1
  8. 8 Paidy 41.6
  9. 9 Magic Moment 41.1
  10. 10 SmartHR 38.8
Top by Agent Readiness
  1. 1 LINE 45.4
  2. 2 Paidy 36.6
  3. 3 Logiless 31
  4. 4 PayPay 30.3
  5. 5 Soracom 29.8
  6. 6 TableCheck 29.8
  7. 7 PAY.JP 29.6
  8. 8 Woodstock 27.3
  9. 9 University of Tokyo 25.9
  10. 10 KUFU 25.7
All 81 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.
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"

Discovery needs no key. Ratings and market analysis are Pro.

Get an API key

Free tier, no email required.

GitHub Google LinkedIn

A second provider on the same verified email joins the account you already have.