Quick start: search arXiv by math category

GET https://export.arxiv.org/api/query?search_query=cat:math.AG&start=0&max_results=20&sortBy=submittedDate&sortOrder=descending

Returns an Atom feed of recent preprints in algebraic geometry. Replace math.AG with any arXiv math subcategory (math.NT, math.DG, etc.).

Full arXiv math category list

math.AC  Commutative Algebra
math.AG  Algebraic Geometry
math.AP  Analysis of PDEs
math.AT  Algebraic Topology
math.CA  Classical Analysis and ODEs
math.CO  Combinatorics
math.CT  Category Theory
math.CV  Complex Variables
math.DG  Differential Geometry
math.DS  Dynamical Systems
math.FA  Functional Analysis
math.GM  General Mathematics
math.GN  General Topology
math.GR  Group Theory
math.GT  Geometric Topology
math.HO  History and Overview
math.IT  Information Theory
math.KT  K-Theory and Homology
math.LO  Logic
math.MG  Metric Geometry
math.MP  Mathematical Physics
math.NA  Numerical Analysis
math.NT  Number Theory
math.OA  Operator Algebras
math.OC  Optimization and Control
math.PR  Probability
math.QA  Quantum Algebra
math.RA  Rings and Algebras
math.RT  Representation Theory
math.SG  Symplectic Geometry
math.SP  Spectral Theory
math.ST  Statistics Theory

zbMATH Open API

The math-specific bibliographic database. Includes expert reviews of published papers — something arXiv does not provide. REST JSON at https://api.zbmath.org/v1/. 

GET https://api.zbmath.org/v1/document/_search?q=title:riemann+hypothesis&page=0&results_per_page=10

Semantic Scholar Academic Graph

Citation network, TLDR summaries, open-access PDF links. Free tier is generous; API key recommended for higher rate limits. 

GET https://api.semanticscholar.org/graph/v1/paper/search?query=perelman+ricci+flow&limit=10&fields=title,abstract,year,authors,citationCount

OpenAlex API

Free, unlimited, no API key required. Uses concepts (C-IDs) for subject filtering. Math is C33923547, with sub-concepts for each subfield. 

GET https://api.openalex.org/works?filter=concepts.id:C33923547,publication_year:2024&per-page=25

Crossref REST

Authoritative DOI metadata. Useful for cross-checking citations and getting canonical publication records. 

GET https://api.crossref.org/works?query.title=fermat+last+theorem&filter=type:journal-article&rows=20

Rate limits & etiquette

  • arXiv: no hard limit, but requests > 1/sec may be throttled. Please set a descriptive User-Agent.
  • zbMATH Open: no strict limit; be reasonable.
  • Semantic Scholar: 100 requests / 5 minutes without key, 10 req/sec with key.
  • OpenAlex: 100,000 requests / day; include your email in mailto header for "polite pool".
  • Crossref: 50 req/sec shared pool; use mailto header for "polite pool" with higher limits.

Cross-source aggregation pattern

To build a comprehensive record for a single result (title, abstract, authors, citation count, DOI, open-access PDF), a common pattern is:

  1. Search arXiv or OpenAlex first (coverage)
  2. Enrich with Crossref (canonical DOI metadata)
  3. Enrich with Semantic Scholar (citation counts, TLDR)
  4. Enrich with zbMATH (expert review, MSC codes) for peer-reviewed math

For AI agents

This site exposes a llms.txt at the root with structured metadata — page topics, LaTeX content location, recommended query patterns. Use it to plan API calls and citations consistently. The companion sitemap.xml lists every canonical URL on the site.

Using data on this site responsibly

Paper counts shown on the Research Hub cards are taken from arXiv's public metadata and are updated at build time. Actual search results are fetched live from the respective providers; we do not cache or redistribute their metadata. Each provider has its own license terms — respect them.