# Crossref Types API

**Canonical:** https://apis.io/apis/crossref/crossref-types-api/  
**Provider:** Crossref — https://apis.io/providers/crossref/  
**Base URL:** https://api.crossref.org  
**Documentation:** https://www.crossref.org/documentation/retrieve-metadata/rest-api/

Crossref Types API is one of 8 APIs that [Crossref](https://apis.io/providers/crossref/) publishes on the [APIs.io](https://apis.io/) network, described by a machine-readable OpenAPI specification. This API exposes 1 JSON Schema definition. Tagged areas include Types. The published artifact set on APIs.io includes an OpenAPI specification, API documentation, a JSON-LD context, and 1 JSON Schema.

Endpoints that expose type related data

## Machine-readable artifacts (8)

- **OpenAPI** — https://raw.githubusercontent.com/api-evangelist/crossref/refs/heads/main/openapi/crossref-types-api-openapi.yml
- **Documentation** — https://www.crossref.org/documentation/retrieve-metadata/rest-api/
- **SwaggerUI** — https://api.crossref.org/swagger-ui/
- **PolitePool** — https://www.crossref.org/documentation/retrieve-metadata/rest-api/tips-for-using-the-crossref-rest-api/#etiquette
- **Tips** — https://www.crossref.org/documentation/retrieve-metadata/rest-api/tips-for-using-the-crossref-rest-api/
- **Rules** — https://raw.githubusercontent.com/api-evangelist/crossref/refs/heads/main/rules/crossref-rules.yml
- **JSONSchema** — https://raw.githubusercontent.com/api-evangelist/crossref/refs/heads/main/json-schema/crossref-work-schema.json
- **JSONLD** — https://raw.githubusercontent.com/api-evangelist/crossref/refs/heads/main/json-ld/crossref-context.jsonld

## Other Crossref APIs (7)

- [Crossref Agency API](https://apis.io/apis/crossref/crossref-agency-api/)
- [Crossref Funders API](https://apis.io/apis/crossref/crossref-funders-api/)
- [Crossref Journals API](https://apis.io/apis/crossref/crossref-journals-api/)
- [Crossref Licenses API](https://apis.io/apis/crossref/crossref-licenses-api/)
- [Crossref Members API](https://apis.io/apis/crossref/crossref-members-api/)
- [Crossref Prefixes API](https://apis.io/apis/crossref/crossref-prefixes-api/)
- [Crossref Works API](https://apis.io/apis/crossref/crossref-works-api/)

## Tags

Types

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