---
aid: leiden
name: Leiden University
description: >-
  Leiden University (Universiteit Leiden) is the oldest university in the
  Netherlands, founded in 1575, and ranks #141 in the QS World University
  Rankings 2025. Its public, machine-accessible developer footprint is modest
  and centered on its libraries rather than a central developer portal. Leiden
  University Libraries operates an OAI-PMH metadata harvesting endpoint for its
  Scholarly Publications repository and maintains an active open-source GitHub
  organization (LeidenUniversityLibrary) with library, Islandora, and IIIF
  tooling. There is no centrally documented public REST API program; most
  institutional and student systems are gated behind SSO.
type: Index
position: Consumer
access: 3rd-Party
image: https://kinlane-productions.s3.amazonaws.com/apis-json/apis-json-logo.jpg
url: https://raw.githubusercontent.com/api-evangelist/leiden/refs/heads/main/apis.yml
tags:
  - Education
  - Higher Education
  - University
  - Netherlands
  - Library
  - Open Access
  - OAI-PMH
  - Research
created: '2026-06-03'
modified: '2026-06-03'
specificationVersion: '0.19'
apis:
  - aid: leiden:scholarly-oai
    name: Scholarly Publications OAI-PMH
    description: >-
      OAI-PMH 2.0 metadata harvesting endpoint for the Leiden University
      Scholarly Publications repository, an Islandora-based institutional
      repository providing open access to PhD theses, articles, journals, book
      series, and conference proceedings since 2006. Metadata may be harvested
      free of charge by search engines and open access initiatives.
    humanURL: https://scholarlypublications.universiteitleiden.nl/about
    baseURL: https://scholarlypublications.universiteitleiden.nl/oai2
    tags: [ OAI-PMH, Open Access, Repository, Metadata, Library ]
    properties:
      - type: Documentation
        url: https://scholarlypublications.universiteitleiden.nl/about
      - type: Authentication
        url: https://scholarlypublications.universiteitleiden.nl/oai2
common:
  - type: Website
    url: https://www.universiteitleiden.nl/en
  - type: GitHub
    url: https://github.com/LeidenUniversityLibrary
  - type: LinkedIn
    url: https://www.linkedin.com/school/leiden-university/
  - type: Plans
    url: plans/leiden-plans-pricing.yml
  - type: RateLimits
    url: rate-limits/leiden-rate-limits.yml
  - type: FinOps
    url: finops/leiden-finops.yml
  - type: Review
    url: review.yml
maintainers:
  - FN: Kin Lane
    email: kin@apievangelist.com