---
aid: university-of-vienna
name: University of Vienna
description: >-
  The University of Vienna (Universität Wien), founded in 1365, is Austria's
  largest university and ranks #78 in the QS World University Rankings 2025.
  Its public, programmatically accessible footprint centers on research and
  scholarly infrastructure rather than a unified developer portal: PHAIDRA, the
  university's institutional repository, exposes a documented REST(ish) API and
  an OAI-PMH metadata harvesting endpoint, and the institution's structured data
  is also published through the pan-European HEI API. Course, library discovery
  (u:find / u:search) and student-information systems are public web services
  but do not publish open developer documentation. No central, branded API
  developer portal or official GitHub organization was confirmed.
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/university-of-vienna/refs/heads/main/apis.yml
tags:
  - Education
  - Higher Education
  - University
  - Research
  - Repository
  - Open Data
  - Austria
  - Europe
created: '2026-06-03'
modified: '2026-06-03'
specificationVersion: '0.19'
apis:
  - aid: university-of-vienna:phaidra-api
    name: PHAIDRA REST API
    description: >-
      PHAIDRA (Permanent Hosting, Archiving and Indexing of Digital Resources and
      Assets) is the University of Vienna's institutional repository for research
      data and digital collections. Its REST(ish) API implements core PHAIDRA
      logic, including object ingest, metadata retrieval (/object/{pid}/info),
      Solr-based search (/search/select), and object thumbnails/previews. An
      OpenAPI specification is published at the /api/openapi endpoint.
    humanURL: https://phaidra.org/docs/api/
    baseURL: https://services.phaidra.univie.ac.at/api
    tags: [ Repository, Research Data, REST, OpenAPI, Digital Preservation ]
    properties:
      - type: Documentation
        url: https://phaidra.org/docs/api/
      - type: OpenAPI
        url: https://services.phaidra.univie.ac.at/api/openapi
      - type: OpenAPI
        url: openapi/university-of-vienna-phaidra-api.yaml
      - type: JSONSchema
        url: json-schema/university-of-vienna-object-info-schema.json
      - type: JSONSchema
        url: json-schema/university-of-vienna-index-schema.json
      - type: x-json-structure
        url: json-structure/university-of-vienna-object-info-structure.json
      - type: x-json-structure
        url: json-structure/university-of-vienna-index-structure.json
      - type: x-example
        url: examples/university-of-vienna-object-info-example.json
      - type: x-example
        url: examples/university-of-vienna-search-select-example.json
      - type: x-spectral-ruleset
        url: rules/university-of-vienna-rules.yml
      - type: x-vocabulary
        url: vocabulary/university-of-vienna-vocabulary.yml
      - type: x-json-ld-context
        url: json-ld/university-of-vienna-context.jsonld
      - type: GitHub
        url: https://github.com/phaidra/phaidra-api/wiki/Documentation
  - aid: university-of-vienna:phaidra-oai-pmh
    name: PHAIDRA OAI-PMH Endpoint
    description: >-
      OAI-PMH metadata harvesting interface for the PHAIDRA repository, used by
      aggregators such as OpenAIRE, Europeana, BASE, OAPEN, EBSCO and Primo.
      Supports the oai_dc (Dublin Core) and oai_openaire metadata formats. Verified
      live returning a valid Identify response.
    humanURL: https://phaidra.org/docs/api/
    baseURL: https://services.phaidra.univie.ac.at/api/oai/
    tags: [ OAI-PMH, Metadata, Harvesting, Repository, Dublin Core ]
    properties:
      - type: Documentation
        url: https://phaidra.org/docs/api/
  - aid: university-of-vienna:hei-api
    name: HEI API (University of Vienna record)
    description: >-
      The pan-European Higher Education Institutions (HEI) API, operated by the
      European University Foundation, publishes structured institutional data for
      the University of Vienna in JSON:API format, including Erasmus codes, PIC,
      Erasmus Charter (ECHE) status and address. This is a third-party API exposing
      University of Vienna data, not operated by the university itself.
    humanURL: https://hei.api.uni-foundation.eu/about
    baseURL: https://hei.api.uni-foundation.eu/api/public/schac/univie.ac.at/hei
    tags: [ JSON:API, Institutional Data, Erasmus, Third-Party ]
    properties:
      - type: Documentation
        url: https://hei.api.uni-foundation.eu/about
common:
  - type: Website
    url: https://www.univie.ac.at/en/
  - type: LinkedIn
    url: https://www.linkedin.com/school/univienna/
  - type: Plans
    url: plans/university-of-vienna-plans-pricing.yml
  - type: RateLimits
    url: rate-limits/university-of-vienna-rate-limits.yml
  - type: FinOps
    url: finops/university-of-vienna-finops.yml
  - type: Review
    url: review.yml
maintainers:
  - FN: Kin Lane
    email: kin@apievangelist.com