OpenAlex

Overview

OpenAlex is a free, open index of 250M+ scholarly works — papers, authors, institutions, journals, concepts — with rich metadata and citation links. Keyless and CORS-enabled (verified live), it’s the modern replacement for the retired Microsoft Academic Graph.

Quick Start

Search works (verified live):

curl "https://api.openalex.org/works?search=quantum%20computing&per-page=3"

A single work by OpenAlex ID:

curl "https://api.openalex.org/works/W2741809807"

Author profile:

curl "https://api.openalex.org/authors/A2208157607"

Filter by institution/country:

curl "https://api.openalex.org/works?filter=institutions.country_code:US,from_publication_date:2026-01-01&per-page=5"

Authentication

None — keyless (add an email in mailto= param for the polite pool).

Rate Limits & Notes

• Free and open; the polite pool (with mailto=) gets faster, more generous service.
• IDs look like W2741809807 (works), A2208157607 (authors), S (sources/journals), I (institutions).
• Rich fields: title, doi, publication_year, cited_by_count, authorships, open_access, concepts.
• Results include next/previous cursor links for pagination.

FAQ

Is OpenAlex free? Yes — fully free, keyless, and open (CC0 data).

What happened to Microsoft Academic? OpenAlex is its community-supported successor.

How do I get faster responses? Pass [email protected] to join the polite pool.