# Crossref memberships (organic units)

**Canonical:** https://apis.io/apis/university-of-lisbon/crossref-membership/  
**Provider:** University of Lisbon — https://apis.io/providers/university-of-lisbon/  
**Base URL:** https://api.crossref.org/members?query=lisboa  
**Documentation:** https://www.crossref.org/

Crossref memberships (organic units) is one of 11 APIs that [University of Lisbon](https://apis.io/providers/university-of-lisbon/) publishes on the [APIs.io](https://apis.io/) network. Tagged areas include Crossref, DOI, Registry, Persistent Identifiers, and Scholarly.

Five ULisboa organic units hold Crossref member IDs in their own right, minting DOIs for their journals independently of the rectorate. There is no single institutional Crossref member — the federated-buyer pattern reproduced exactly in the scholarly identifier layer. Crossref is also an enabled external metadata source in the institution's own DSpace deployment.

## Machine-readable artifacts (1)

- **Conformance** — https://raw.githubusercontent.com/api-evangelist/university-of-lisbon/refs/heads/main/conformance/university-of-lisbon-domain-standards.yml

## Other University of Lisbon APIs (10)

- [FenixEdu Academic API (Instituto Superior Tecnico)](https://apis.io/apis/university-of-lisbon/fenixedu-tecnico/)
- [Repositorio da Universidade de Lisboa — OAI-PMH](https://apis.io/apis/university-of-lisbon/repositorio-oai-pmh/)
- [Repositorio da Universidade de Lisboa — DSpace REST API](https://apis.io/apis/university-of-lisbon/repositorio-dspace-rest/)
- [Catalogo Coletivo ULisboa (Koha) — OAI-PMH](https://apis.io/apis/university-of-lisbon/catalogo-bibliotecas-oai-pmh/)
- [Universidade de Lisboa SAML 2.0 Identity Provider (RCTSaai / eduGAIN)](https://apis.io/apis/university-of-lisbon/identity-federation-ulisboa/)
- [Instituto Superior Tecnico SAML 2.0 Identity Provider (RCTSaai / eduGAIN)](https://apis.io/apis/university-of-lisbon/identity-federation-tecnico/)
- [ULisboa Research Portal — Elsevier Pure tenancy](https://apis.io/apis/university-of-lisbon/researchportal-pure/)
- [Erasmus Without Paper node (HEI ulisboa.pt)](https://apis.io/apis/university-of-lisbon/ewp-node/)
- [DataCite repository membership (QWBT.ULISBOA)](https://apis.io/apis/university-of-lisbon/datacite-membership/)
- [ROR organization identifier](https://apis.io/apis/university-of-lisbon/ror-registration/)

## Tags

Crossref, DOI, Registry, Persistent Identifiers, Scholarly

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