Japan
Providers using this tag (123)
Ranked by API Evangelist rating — Exemplar and Strong are expanded by default.
Developing 10 Usable, with meaningful gaps to close
Thin 20 Limited public surface area
Emerging 33 Early or largely undocumented
bitbankWoodstockJ-QuantsTohoku UniversityUnifa1→10Hokkaido UniversityKyashAI modelANDPADTrustdockAgroDesign StudiosNTTSpiberaceRNA TechnologiesBODIK ODCSDATA GO JPe-Gov Data CatalogGifu Prefecture Open DataTokyo Metropolitan Open DataUlysses (Kaminashi)Yokohama City Open DataSoucoBokksuBiomejapanHiJoJo PartnersGrafferTakeda Pharmaceutical CompanyArayaHokanZehitomoLife is TechLeaner Technologies
Minimal 56 Almost no public developer surface
Aerial PartnersApp-CMKuraseruClassActionLinc'wellPokelaboAeterlinkGojo & CompanyRakuten MobileTyffonAniqueBooosttechnologiesDiniiHERPSkyDriveAmekazetaiyoAeronextArsagapartnersTokyoOtakuModeIntegral Geometry ScienceKoskaACROVEenechainEvery.tvConnected RoboticsCAPSAgripediaKakehashiShippioElephantechAI Medical ServiceSpaceeAdvance CompositeAgristExcite Japan Co., Ltd. (JASDAQ:3754)newmoEVERSTEELABABASansanKDDIAculysOcean Network ExpressDverseStailerVisasQAillisFact BaseSumutasuPocket MenuSODAAracanHabittoP2P, Inc.AisilkActEvolveHiCustomer
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
Thin 6 Limited public surface area
Paidy CheckoutJavaScript-based checkout integration that enables consumers to authenticate with Paidy and authorize payme...Rakuten GORA Golf Course Search APISearch Rakuten GORA Japanese golf courses by name, area, and facility attributes.Rakuten Pay Merchant APIRakuten Pay is Rakuten's e-money / QR payment service for Japan, integrated by merchants directly or via PS...Rakuten Travel Area Class APIReturns Rakuten Travel's hierarchical Japanese area classification (prefecture / region / detail), used to ...Rakuten Travel Simple Hotel Search APILightweight keyword and area search over Rakuten Travel's Japanese hotel inventory, returning hotel name, l...GakuNin 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 ...
Emerging 2 Early or largely undocumented
Score breakdown
Frequency
58.2
log-scaled weighted occurrences
Breadth
3.2
spread across providers
Quality lift
23.2
mean composite of providers using it
Cohesion
3.5
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
SAML 9 co-occurrences
Where this tag comes from
Provider tag123
Api tag9
Cohort brief
Auto-generatedThe 118 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
118
of 123 in the catalog
Mean Kin Score
19.5
-3.4 vs catalog 22.9
Mean Agent Readiness
8.5
-3.4 vs catalog 11.9
Spread
2.1–71.8
median 14.1 · σ 15.6
How the 118 split by band
Exemplar 2Strong 2Developing 10Thin 20Emerging 33Minimal 51
Facet averages, against the whole catalog
| Facet | This cohort | Catalog | Difference | Scored |
|---|---|---|---|---|
| Discoverability | 59.1 | 58.1 | +1 | 118 |
| Access Clarity | 26 | 26.5 | -0.5 | 118 |
| Contract Governance | 5.3 | 6.3 | -1 | 118 |
| Operational Transparency | 11.7 | 13.7 | -2 | 118 |
| Developer Ergonomics | 18.6 | 23.2 | -4.6 | 118 |
| Contract Quality | 11.3 | 17.6 | -6.3 | 118 |
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) | 9% | 14% | -5 |
| MCP server (first-party) | 8% | 12% | -4 |
| Agent Skills | 0% | 0% | 0 |
| OAuth scopes | 6% | 11% | -5 |
| Security | 99% | 98% | +1 |
| Arazzo workflows | 1% | 2% | -1 |
| Governance rules | 6% | 14% | -8 |
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 LINE 71.8
- 2 PAY.JP 70.8
- 3 3-shake 57
- 4 Soracom 55.1
- 5 HORIZON SHIELD 54.2
- 6 SUPER STUDIO 53.2
- 7 JPX (Japan Exchange Group) 51.6
- 8 MeetsMore 47.8
- 9 University of Tokyo 45.3
- 10 Acall 44
Top by Agent Readiness
- 1 KG-NINJA 54.9
- 2 LINE 44.9
- 3 SUPER STUDIO 39.1
- 4 HORIZON SHIELD 36.2
- 5 Paidy 36.2
- 6 Agri Info Design 31.8
- 7 Logiless 31
- 8 PayPay 30.3
- 9 University of Tokyo 30
- 10 Soracom 29.8
All 123 members of this roster resolve to a provider in the
catalog; 118 carry a score (96%).
The figures above describe the scored members only.
Coverage caveat. 102 of 118 scored members had under half their catalog-attributable points satisfied at all (catalog_earned / catalog_max < 0.5). They are INCLUDED in the mean above. A large share here means the cohort mean is partly a measurement of how far our enrichment reached, not only of how these providers publish.Generated from the catalog build of 5 October 2026, across 29093 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.
Coverage caveat. 102 of 118 scored members had under half their catalog-attributable points satisfied at all (catalog_earned / catalog_max < 0.5). They are INCLUDED in the mean above. A large share here means the cohort mean is partly a measurement of how far our enrichment reached, not only of how these providers publish.Generated from the catalog build of 5 October 2026, across 29093 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.