Science
Crossref REST API
DOI-related publication metadata with filters for bibliographic queries.
Provenance & attributes
Kind: api · HTTPS: unknown · CORS: unknown
Sources: profiles
Categories: Science ·
When is this useful?
Finding references and assessing DOI match candidates.
Access & pricing
No key
The listed public read routes do not need a key; check authentication separately for other functions.
Free tier + paid
The public metadata API is free; Metadata Plus is a separate paid service.
Pricing at the source ↗Get your own key only from the provider. Never enter keys or tokens here.
Limitations & terms
A match score does not prove identity. Public access and Metadata Plus differ; abstracts and linked works can retain separate rights.
Commercial use: Restricted
No terms source recorded; permission has not been established.
Related guides
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A guide for your situation
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Which integration step helps you move forward?
30 short questions about APIs and connecting data. Selecting an answer moves to the next question. You can go back, change answers, or skip. This is a practical reading route, not a scientific test.
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