alphaXiv

Free overlay for arXiv papers with public discussion/comment threads per paper

What alphaXiv does

  • Free overlay for arXiv papers with public discussion/comment threads per paper
  • Personalized research feed and researcher-follow system
  • Browser extension and MCP server for agent integration

alphaXiv — straight answers

What is alphaXiv?

alphaXiv is listed under Academic Research, in the Research & Learning category on Flocci AI Tools. Free overlay for arXiv papers with public discussion/comment threads per paper. It is free, with no paid plan attached, and it lives at alphaxiv.org.

Is alphaXiv free?

alphaXiv is listed as fully free — there is no paid tier attached to it in the catalog. That makes it one of the 396 entries on Flocci AI Tools with no upgrade path built in.

Can I use alphaXiv in a browser, or is there an app?

alphaXiv works in a normal browser tab with no install. It is available on the web and a Chrome extension. You can sign in with a Google account.

What can alphaXiv do?

alphaXiv does 3 things the catalog singles out: Free overlay for arxiv papers with public discussion/comment threads per paper; personalized research feed and researcher-follow system; browser extension and mcp server for agent integration.

What is the best free alternative to alphaXiv?

Ai2 Paper Finder (Asta) is the closest free alternative: it sits in the same Academic Research sub-category and is free. ResearchRabbit, Semantic Scholar and PaperQA2 also start free. The full list is on the alternatives page.

See the full list →

alphaXiv alternatives

Compare all alternatives →

Elicit

Academic Research
freemium
  • Find and summarize research papers
  • Extract data across studies
  • Systematic-review workflows
  • Free monthly credits

Consensus

Academic Research
freemium
  • Answers grounded in peer-reviewed papers
  • Consensus Meter across studies
  • Study snapshots and quality
  • Free searches

SciSpace

Academic Research
freemium
  • Explain and chat with any paper
  • Literature review and comparison tables
  • Paraphrase and citation help
  • Free tier

Undermind

Academic Research
freemium
  • Exhaustive, agentic literature search
  • Finds hard-to-surface papers
  • Explains why each result matters
  • Free searches to start

Semantic Scholar

Academic Research
free
  • Fully free AI-powered search across 237M+ scientific papers
  • Semantic Reader augmented-reading tool for papers
  • Free public API used by many other research tools

ResearchRabbit

Academic Research
free
  • Visual citation-network mapping across 310M+ papers
  • Zotero integration for reference management
  • Used by 1M+ researchers at Harvard/Stanford/MIT/Oxford, free to sign up

Head-to-head comparisons