arXiv Paper Search — find academic papers by keyword with optional category filter. HOW TO CALL: POST /search_arxiv?q

arXiv Paper Search — find academic papers by keyword with optional category filter. HOW TO CALL: POST /search_arxiv?query=diffusion+model+finance&category=q-fin.ST&max_results=10 PARAMETERS: query — free-text search (required) category — arXiv category code (e.g. 'cs.AI', 'q-fin.ST', 'quant-ph') OR group alias: ai | finance | crypto | bio | physics | econ max_results — 1–50 (default 10) sort_by — 'submittedDate' (default) | 'relevance' | 'lastUpdatedDate' RESPONSE FIELDS (per paper): id, title, abstract (truncated to 600 chars), authors, published, updated, primary_category, categories, pdf_url, url Cached 12 hours per (query, category). PRICING: $0.02 per call.