# Maastricht University Research Portal OAI-PMH

**Canonical:** https://apis.io/apis/maastricht/oai-pmh/  
**Provider:** Maastricht University — https://apis.io/providers/maastricht/  
**Base URL:** https://cris.maastrichtuniversity.nl/ws/oai  
**Documentation:** https://cris.maastrichtuniversity.nl/

Maastricht University Research Portal OAI-PMH is one of 10 APIs that [Maastricht University](https://apis.io/providers/maastricht/) publishes on the [APIs.io](https://apis.io/) network, described by a machine-readable OpenAPI specification. Tagged areas include OAI-PMH, Research, Metadata, Repository, and CERIF. The published artifact set on APIs.io includes an OpenAPI specification and API documentation.

Keyless OAI-PMH 2.0 metadata harvesting endpoint operated by Maastricht University on its own domain. Verified live 2026-08-30: all six verbs return 200, six metadata profiles are offered (oai_dc, qdc, mods, nl_didl, xmetadiss, oai_cerif_openaire), sets follow the OpenAIRE CRIS entity model plus year-partitioned and withFiles publication sets, and ListIdentifiers reports a completeListSize of 798,420. The repository self-identifies as "Maastricht University OAI Repository" with adminEmail ub-pure@maastrichtuniversity.nl. The CRIS software underneath is Elsevier Pure, but this harvesting surface carries Maastricht's own sets, profiles and contact and is served from maastrichtuniversity.nl, so it is treated as institution-operated. The OpenAPI below is DERIVED by API Evangelist from live probes — Maastricht publishes none.

## Machine-readable artifacts (11)

- **OpenAPI** — https://raw.githubusercontent.com/api-evangelist/maastricht/refs/heads/main/openapi/maastricht-oai-pmh-openapi.yml
- **Documentation** — https://www.openarchives.org/OAI/openarchivesprotocol.html
- **Website** — https://cris.maastrichtuniversity.nl/
- **x-oai-pmh-identify** — https://cris.maastrichtuniversity.nl/ws/oai?verb=Identify
- **Conformance** — https://raw.githubusercontent.com/api-evangelist/maastricht/refs/heads/main/conformance/maastricht-conformance.yml
- **Errors** — https://raw.githubusercontent.com/api-evangelist/maastricht/refs/heads/main/errors/maastricht-errors.yml
- **Vocabulary** — https://raw.githubusercontent.com/api-evangelist/maastricht/refs/heads/main/vocabulary/maastricht-vocabulary.yml
- **x-example** — https://raw.githubusercontent.com/api-evangelist/maastricht/refs/heads/main/examples/maastricht-oai-identify-example.xml
- **x-example** — https://raw.githubusercontent.com/api-evangelist/maastricht/refs/heads/main/examples/maastricht-oai-listmetadataformats-example.xml
- **x-example** — https://raw.githubusercontent.com/api-evangelist/maastricht/refs/heads/main/examples/maastricht-oai-badverb-example.xml
- **APIsJSON** — https://raw.githubusercontent.com/api-evangelist/maastricht/refs/heads/main/apis.yml

## Other Maastricht University APIs (9)

- [Maastricht University Identity Provider (ADFS / SURFconext / eduGAIN)](https://apis.io/apis/maastricht/identity-federation/)
- [Maastricht University GitLab](https://apis.io/apis/maastricht/gitlab/)
- [Maastricht University Institute of Data Science (Open Source)](https://apis.io/apis/maastricht/ids-github/)
- [DataHub Maastricht (Research IT) Open Source](https://apis.io/apis/maastricht/datahub-github/)
- [Maastricht University Library Open Source](https://apis.io/apis/maastricht/library-github/)
- [Maastricht University research data collection on DataverseNL](https://apis.io/apis/maastricht/dataversenl/)
- [Maastricht University Research Portal (Pure) REST API](https://apis.io/apis/maastricht/pure-ws-api/)
- [Maastricht University Canvas LMS](https://apis.io/apis/maastricht/canvas/)
- [Maastricht University Library discovery (OCLC WorldCat)](https://apis.io/apis/maastricht/worldcat-discovery/)

## Tags

OAI-PMH, Research, Metadata, Repository, CERIF, ORCID

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Profiled by [API Evangelist](https://apievangelist.com) and published on [APIs.io](https://apis.io/apis/maastricht/oai-pmh/). The API's provider profile, Kin Score and agent-readiness rating are at https://apis.io/providers/maastricht/.