OpenAlex API: Search 250M+ Research Papers for Free (No API Key Needed)

Most researchers pay for Scopus ($10,000+/year) or Web of Science ($50,000+/year) to search academic literature. But OpenAlex — a free, open-source index of 250M+ scholarly works — gives you the same data through a simple REST API. No API key. No rate limits (for polite users). No paywall. I replaced a $500/month research data pipeline with 30 lines of Python using this API. Here's how. What Is OpenAlex? OpenAlex is a free, open catalog of the global research system. It indexes: 250M+ works (papers, books, datasets) 100M+ authors with citation metrics 100K+ institutions worldwide 50K+ journals and conferences Topics, concepts, and citation graphs Think of it as a free alternative to Scopus, Web of Science, and Google Scholar — but with a proper API. Quick Start: Search Papers in 5 Lines import urllib.request import json url = " https://api.openalex.org/works?search=large+language+models&sort=cited_by_count:desc&per_page=5 " response = urllib . request . urlopen ( url ) papers = json .