{"uid":"cap_qlwhcS9sIVinS3G2JvVrM","slug":"project-api-arxiv-preprint-search-e2a5e34b","name":"Project API – arXiv Preprint Search","description":"Paid public-data feeds. Unpaid requests return HTTP 402. Prices are USDC on Base.","url":"https://project-api-gamma-sable.vercel.app/paid/arxiv/search?utm_source=zero.xyz","method":"GET","headers":{},"bodySchema":{"type":"object","$schema":"https://json-schema.org/draft/2020-12/schema","required":["input"],"properties":{"input":{"type":"object","required":["type","method"],"properties":{"type":{"type":"string","const":"http"},"method":{"enum":["GET"],"type":"string"},"queryParams":{"type":"object","required":["q"],"properties":{"q":{"type":"string","description":"Free-text query"},"limit":{"type":"string","description":"Max results"},"query":{"type":"string","description":"Search / SPARQL query"},"start":{"type":"string","description":"Start date (YYYY-MM-DD)"},"sortBy":{"type":"string","description":"Query param: sortBy"},"sortOrder":{"type":"string","description":"Query param: sortOrder"},"max_results":{"type":"string","description":"Query param: max_results"},"search_query":{"type":"string","description":"arXiv search_query"}}}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object"}}}}},"responseSchema":{"type":"json","example":{"what":"arXiv Atom API preprint search (slim JSON + abs/pdf links)","items":[],"source":"/paid/arxiv/search"}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.01","displayCostAsset":"USDC","priceDynamic":false,"priceHint":null,"priceStatus":"priced","priceSource":"probe","requiresHandshake":false,"reviewCount":0,"rating":{"score":"0.00","successRate":"0.00","reviews":0,"stars":null,"state":"unrated"},"availabilityStatus":"unknown","priceObserved":null,"sessionDeposit":null,"pricing":{"kind":"static","summary":"$0.01/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.01","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.01","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_J74WhhHa3WnwpveMx2sxy","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.01","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Searches arXiv preprints using a free-text query and returns slim JSON with abstract and PDF links, gated behind a $0.01 USDC micropayment per call.","exampleAgentPrompt":"Search arXiv for the latest papers on diffusion models for image generation — give me up to 10 results sorted by submission date, with abstract and PDF links.","exampleUseCases":[{"title":"Track new AI safety research","prompt":"Search arXiv for recent papers on AI alignment and safety, sorted by submission date, and give me the top 5 with their abstract and PDF links."},{"title":"Literature review on a technical topic","prompt":"Find me up to 20 arXiv preprints on graph neural networks for drug discovery — I need the titles, abstracts, and PDF links to review the field."},{"title":"Monitor quantum computing advances","prompt":"Search arXiv for papers on fault-tolerant quantum computing published since 2024-01-01, sorted by relevance, and return the top 10 results."}],"resultDescription":"Returns a slim JSON object containing a list of matching arXiv preprints, each with metadata such as title, authors, abstract snippet, arXiv abstract page link, and direct PDF download link. The response includes the source path and a 'what' description field. Empty results return an empty items array.","failureModes":["HTTP 402 returned if no valid USDC payment is included — caller must use x402 micropayment protocol on Base network","Empty items array returned if query matches no arXiv results","Invalid or missing 'q' query parameter may cause a 400 or empty response","Rate limiting or upstream arXiv API unavailability may cause delayed or failed responses","Malformed date format in 'start' parameter may produce unexpected results"],"whenToPreferThis":"Choose this endpoint when you need programmatic, pay-per-query access to arXiv preprints with a very low per-call cost ($0.01 USDC) and no subscription or API key required — ideal for AI agents that need on-demand literature search without managing credentials, or when integrating academic paper discovery into a crypto-native workflow using the x402 payment standard on Base.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-10T12:36:40.103Z","isFirstParty":false,"canonicalSlug":"project-api-arxiv-preprint-search-e2a5e34b"}