# Crossref Membership (member 4211)

**Canonical:** https://apis.io/apis/university-of-warsaw/crossref-membership/  
**Provider:** University of Warsaw — https://apis.io/providers/university-of-warsaw/  
**Base URL:** https://api.crossref.org/members/4211  
**Documentation:** https://www.crossref.org/

Crossref Membership (member 4211) is one of 17 APIs that [University of Warsaw](https://apis.io/providers/university-of-warsaw/) publishes on the [APIs.io](https://apis.io/) network. Tagged areas include Crossref, DOI, Registry, Scholarly Publishing, and Persistent Identifiers. The published artifact set on APIs.io includes an API reference.

The University of Warsaw is Crossref member 4211, holding 31 DOI prefixes used across its journals and press imprints (10.7311, 10.14394, 10.7172, 10.55226, 10.67180 and others). The membership is a fact about the institution and is recorded as such; Crossref's REST API is Crossref's contract, not the university's.

## Machine-readable artifacts (1)

- **APIReference** — https://api.crossref.org/members/4211

## Other University of Warsaw APIs (12)

- [Dane Badawcze UW Research Data Repository REST API](https://apis.io/apis/university-of-warsaw/rdr-rest/)
- [Dane Badawcze UW OAI-PMH Endpoint](https://apis.io/apis/university-of-warsaw/rdr-oai-pmh/)
- [University of Warsaw apiref API](https://apis.io/apis/university-of-warsaw/university-of-warsaw-apiref-api/)
- [University of Warsaw apisrv API](https://apis.io/apis/university-of-warsaw/university-of-warsaw-apisrv-api/)
- [University of Warsaw calendar API](https://apis.io/apis/university-of-warsaw/university-of-warsaw-calendar-api/)
- [University of Warsaw courses API](https://apis.io/apis/university-of-warsaw/university-of-warsaw-courses-api/)
- [University of Warsaw fac API](https://apis.io/apis/university-of-warsaw/university-of-warsaw-fac-api/)
- [Jaskier API](https://apis.io/apis/university-of-warsaw/jaskier-api/)
- [Student Portal 4EU+ API](https://apis.io/apis/university-of-warsaw/sp4eu-api/)
- [ReIn UW Institutional Repository REST API](https://apis.io/apis/university-of-warsaw/rein-uw-rest/)
- [ReIn UW OAI-PMH Endpoint](https://apis.io/apis/university-of-warsaw/rein-uw-oai-pmh/)
- [University of Warsaw SAML Identity Provider (eduGAIN / PIONIER.Id)](https://apis.io/apis/university-of-warsaw/saml-idp/)

## Tags

Crossref, DOI, Registry, Scholarly Publishing, Persistent Identifiers

---

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