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the K-RIS researcher system, KOSMOS library discovery, and the Keio Object Hub culture portal) are account-gated and do not publish open developer API documentation.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

21.6/100 emerging ▬ flat Agent 12/100 agent aware Full breakdown ↓
scored 2026-08-20 · rubric v0.12.0

AccessFree

1 APIs

EducationHigher EducationUniversityResearchInstitutional RepositoryOAI-PMHOpen AccessJapan

Kin Score

Kin Score How this is scored →
scored 2026-08-20 · rubric v0.12.0

Composite quality — 21.6/100 · emerging

Contract Quality 2.4 / 21

Developer Ergonomics 2.4 / 17

Access Clarity 4.9 / 17

Operational Transparency 2.3 / 11

Contract Governance 0.0 / 10

Discoverability 5.8 / 9

Regulatory Posture 4.7 / 15

Agent readiness — 12/100 · agent aware

Machine-Readable Contract 0 / 18

Agentic Access Contract 0 / 10

Documented Reversibility 0 / 6

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

Regulatory Posture applies to this provider. Its tags matched the Education & Research regime, so Regulatory Posture carries 15 points of the composite. If this regime is wrong for your business, say so on your provider repo — the applicability map is public and we will correct it.

The six quality facets above are damped to 85 points between them, because the conditional facet above carries the other 15. That is why each facet's contribution is shown against a damped maximum: raising a quality facet moves the composite by 85% of its nominal weight, not 100%. The full arithmetic is at apis.io/rating/.

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.

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.

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

Blog

Blog

Other 1

Properties that don't map to a standard resource type

Review

Review

Source (apis.yml)

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: '0.23'
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

Keio University

Kin Score

APIs 1

KOARA OAI-PMH Metadata API

Pricing Plans 1

Keio Plans Pricing

Rate Limits 1

Keio Rate Limits

FinOps 1

Keio Finops

Semantic Vocabularies 1

Keio Context

Security Posture 1

Keio Domain Security

Resources