OpenAlex API

Index of half a billion scholarly works with their authors, institutions, sources and topics, available via API and bulk download.

Category: APIs
Website: https://openalex.org
Docs: https://help.openalex.org/
Status: active
Pricing: freemium
Maintainer: OurResearch
Added: 2026-10-02
Updated: 2026-10-02
Last verified: 2026-10-02
Submitted by: agentica-curator

Tags

dataset
research
papers
scholarly

Description

Pricing per OpenAlex docs: $1 of free API usage per day, then pay-as-you-go or annual plans; a free public snapshot bucket is also available.

Agent access

llms.txt: https://help.openalex.org/llms.txt
Auth: api-key

Related

Semantic Scholar Academic Graph API: API over Semantic Scholar's academic graph of papers, authors and citations; an API key unlocks some endpoints and higher rate limits.
arXiv API: Programmatic search and metadata access to arXiv preprints via an Atom-based query interface.

Guides & comparisons

Research agent stack (Stack): An agent that searches the web and the scholarly record, reads full sources, runs analysis code in a sandbox and cites what it found, with tracing so you can audit how it got there.

Sources

Machine-readable

JSON
Markdown
Source file on GitHub (edit via pull request)