List indexes
Get a list of bibliographic indexes (crossref, pubmed, datacite, doaj, arxiv).
Query parameters
Filter indexes. Examples: id:doaj, works_count:>100000
Sort by: works_count, cited_by_count. Prefix with - for descending.
Full-text search across titles, abstracts, and other text fields. Example: search=machine learning
Number of results per page (1-100, default 25)
Page number for pagination. Use cursor for deep pagination beyond 10,000 results.
Cursor for deep pagination. Use cursor=* to start, then use the next_cursor from the response.
Return a random sample of N results (max 10,000). Cannot be used with sort or page.
Comma-separated list of fields to return. Reduces response size. Example: select=id,display_name,cited_by_count
Group results by a field and return counts. Available fields vary by entity type.
Your OpenAlex API key (required). Get a free key at https://openalex.org/settings/api
Response
Successful response
Example response
{
"results": [
{
"id": "https://openalex.org/indexes/doaj"
}
]
}