Keio University website screenshot

Keio University

Keio University is a private research university in Tokyo, Japan, founded in 1858, and ranked #188 in the QS World University Rankings 2025. Its public machine-readable footprint is led by KOARA (KeiO Associated Repository of Academic resources), the institutional repository, which exposes a live OAI-PMH 2.0 metadata-harvesting endpoint. Most other institutional systems (keio.jp SSO over Google Workspace, Canvas K-LMS, the K-RIS researcher system, KOSMOS library discovery, and the Keio Object Hub culture portal) are account-gated and do not publish open developer API documentation. Identity is federated through GakuNin, the Japanese academic SAML/Shibboleth federation that participates in eduGAIN.

Keio University publishes 1 API on the APIs.io network. Tagged areas include Education, Higher Education, University, Research, and Institutional Repository.

The Keio University catalog on APIs.io includes 1 JSON-LD context.

Keio University’s developer surface includes authentication, engineering blog, and 10 more developer resources.

🌐 Visit website 📡 Source on GitHub
21.2/100 emerging ▬ flat Agent 12/100 agent aware Full breakdown ↓
scored 2026-07-28 · rubric v0.6
AccessFree
1 APIs
EducationHigher EducationUniversityResearchInstitutional RepositoryOAI-PMHOpen AccessJapan

Kin Score

Kin Score Kin Score How this is scored →
scored 2026-07-28 · rubric v0.6
Composite quality — 21.2/100 · emerging
Contract Quality 3.2 / 25
Developer Ergonomics 2.6 / 20
Commercial Clarity 5.8 / 20
Operational Transparency 2.7 / 13
Governance 0.0 / 12
Discoverability 6.9 / 10
Agent readiness — 12/100 · agent aware
Machine-Readable Contract 0 / 18
Agentic Access Contract 0 / 10
MCP Server 0 / 12
Machine-Readable Auth 10 / 10
Idempotency 0 / 9
Stable Error Semantics 0 / 8
Request/Response Examples 0 / 7
Rate-Limit Signaling 7 / 7
Typed Event Surface 0 / 6
Agent Skills 0 / 5
Well-Known Catalog 0 / 4
Consent & Bot Identity 0 / 3
A2A Agent Card 0 / 8
Dry-Run / Simulate Mode 0 / 4
Improve this rating by publishing the missing artifacts — every area above can be raised, and the full rubric is at apis.io/rating/. This rating is computed from github.com/api-evangelist/keio: open an issue to ask a question, or submit a pull request to add artifacts. Want it done for you? Prioritized profiling — $2,500 →

APIs 1

Individual APIs this provider publishes, each with its own machine-readable definition.

KOARA OAI-PMH Metadata API

KOARA (KeiO Associated Repository of Academic resources) is Keio University's institutional repository, released in 2006 and running on the XooNips platform. It exposes a public...

Pricing Plans 1

Published pricing tiers and plan structures.

Keio Plans Pricing

2 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

Keio Rate Limits

1 limits

RATE LIMITS

FinOps 1

Cost, billing, and metering signals for API financial operations.

Keio Finops

FINOPS

Semantic Vocabularies 1

JSON-LD contexts and semantic vocabularies used across these APIs.

Keio Context

14 classes · 3 properties

JSON-LD

Security Posture 1

Authentication, domain security, vulnerability disclosure, and trust-center signals.

Keio Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Resources

Design & Contract 1

Pagination, idempotency, versioning, errors, and events

JSONLD
JSONLD

Build 1

SDKs, sample code, and the tooling you integrate with

LibraryWebsite
LibraryWebsite

Access & Security 2

Authentication, authorization, and security posture

DomainSecurity
DomainSecurity
 Authentication
Authentication

Operate 1

Status, limits, changes, and where to get help

RateLimits
RateLimits

Commercial 2

Pricing, plans, and the legal terms of use

Plans
Plans
 FinOps
FinOps

Company 4

The organization behind the API

Website
Website
 Twitter
Twitter
 LinkedIn
LinkedIn
 Blog
Blog

Other 1

Properties that don't map to a standard resource type

Review
Review

Source (apis.yml)

apis.yml Raw ↑ 
aid: keio
name: Keio University
description: 'Keio University is a private research university in Tokyo, Japan, founded in 1858, and ranked #188 in the QS
  World University Rankings 2025. Its public machine-readable footprint is led by KOARA (KeiO Associated Repository of Academic
  resources), the institutional repository, which exposes a live OAI-PMH 2.0 metadata-harvesting endpoint. Most other institutional
  systems (keio.jp SSO over Google Workspace, Canvas K-LMS, the K-RIS researcher system, KOSMOS library discovery, and the
  Keio Object Hub culture portal) are account-gated and do not publish open developer API documentation. Identity is federated
  through GakuNin, the Japanese academic SAML/Shibboleth federation that participates in eduGAIN.'
type: Index
accessModel:
  pricing: free
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Free
  confidence: medium
  source:
  - plans
  generated: '2026-07-22'
  method: derived
position: Consumer
access: 3rd-Party
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/keio.png
url: https://raw.githubusercontent.com/api-evangelist/keio/refs/heads/main/apis.yml
tags:
- Education
- Higher Education
- University
- Research
- Institutional Repository
- OAI-PMH
- Open Access
- Japan
created: '2026-06-03'
modified: '2026-06-03'
specificationVersion: '0.19'
apis:
- aid: keio:koara-oai-pmh
  name: KOARA OAI-PMH Metadata API
  description: KOARA (KeiO Associated Repository of Academic resources) is Keio University's institutional repository, released
    in 2006 and running on the XooNips platform. It exposes a publicly accessible OAI-PMH 2.0 endpoint for harvesting metadata
    of its scholarly records (theses, articles, and other academic resources). The Identify response confirms protocol version
    2.0 with second-level datestamp granularity.
  humanURL: https://koara.lib.keio.ac.jp/doc/KOARA_About_en.htm
  baseURL: https://koara.lib.keio.ac.jp/xoonips/modules/xoonips/oai.php
  tags:
  - OAI-PMH
  - Institutional Repository
  - Metadata
  - Open Access
  - Research
  properties:
  - type: Documentation
    url: https://koara.lib.keio.ac.jp/doc/KOARA_About_en.htm
common:
- type: DomainSecurity
  url: security/keio-domain-security.yml
- type: Website
  url: https://www.keio.ac.jp/en/
- type: LibraryWebsite
  url: https://www.lib.keio.ac.jp/en/
- type: Authentication
  url: https://www.gakunin.jp/en
- type: Twitter
  url: https://twitter.com/Keio_PR_eng
- type: LinkedIn
  url: https://www.linkedin.com/school/keio-university/
- type: Plans
  url: plans/keio-plans-pricing.yml
- type: RateLimits
  url: rate-limits/keio-rate-limits.yml
- type: FinOps
  url: finops/keio-finops.yml
- type: Review
  url: review.yml
- type: JSONLD
  url: json-ld/keio-context.jsonld
- type: Blog
  url: blogs/blogs.json
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com