Crossref is a non-profit organization that provides digital infrastructure for scholarly communications. Best known for Digital Object Identifier (DOI) registration, Crossref also operates a public REST API offering searchable, filterable access to metadata for tens of millions of scholarly works, journals, members, funders, prefixes, types, licenses, and DOI registration agency information. The Crossref REST API supports free-form queries, field queries, filters, facets, deep-paging cursors, and selection of specific elements, and is used by reference managers, repositories, discovery layers, and analytics platforms.
APIs.json: https://raw.githubusercontent.com/api-evangelist/crossref/refs/heads/main/apis.yml
- Type: Index
- Position: Provider
- Access: Public
- Citations
- DOI
- Funders
- Identifiers
- Journals
- Licenses
- Members
- Metadata
- Open Access
- ORCID
- Prefixes
- Publishers
- Reference Linking
- ROR
- Scholarly
- Created: 2024-07-02
- Modified: 2026-05-19
The Crossref REST API is a public, read-only metadata API that provides programmatic access to Crossref's database of scholarly content. Endpoints expose works, journals, members, funders, types, licenses, prefixes, and DOI registration agency lookups, with rich query, filter, facet, sort, select, and cursor-based deep paging capabilities. No sign-up is required, but consumers are encouraged to use the polite pool by including a mailto query parameter or User-Agent contact for higher reliability.
- Human URL: https://www.crossref.org/documentation/retrieve-metadata/rest-api/
- Base URL:
https://api.crossref.org
- Agency
- Funders
- Journals
- Licenses
- Members
- Metadata
- Prefixes
- Types
- Works
- Documentation
- Swagger U I
- Polite Pool
- Tips
- OpenAPI — OpenAPI Specification
- Postman Collection — Postman Collection 2.1
- Open Collection — Open Collection 1.0
- Rules
- Capabilities
- JSON Schema — JSON Schema
- JSON-LD — JSON-LD
- Vocabulary
- JSON-LD — JSON-LD
- JSON Schema — JSON Schema
- Website
- Documentation
- A P I Documentation
- Blog
- GitHub Organization
- Status Page
- Community
- Terms of Service
FN: Kin Lane Email: kin@apievangelist.com