{"uid":"cap_bsDJQWI39-V0S3zM-m5bR","slug":"synthora-arxiv-preprint-search-f7d2f673","name":"SYNTHORA arXiv Preprint Search","description":"Queries the arXiv API for preprints by keyword, author or category, returning Atom XML with titles, abstracts, authors, arXiv IDs, DOIs and PDF links. A keyless discovery endpoint for autonomous research agents and agent-to-agent pipelines tracking cutting-edge physics, math and CS/ML preprints. First 3 calls FREE per wallet — send header X-WALLET: 0x<addr>. No charge on upstream failure.","url":"https://arxiv-preprint-search.hergertsynthora.com/service","method":"POST","headers":{},"bodySchema":{"type":"object","properties":{"query":{"type":"string","description":"query"}}},"responseSchema":{"type":"json","example":{"ok":true,"niche":"arxiv-preprint-search","result":{}}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.001","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":"$0.001/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.001","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.001","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_HSPxOeAetXUSocL-JMSC4","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.001","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Queries the arXiv API for academic preprints by keyword, author, or category, returning structured metadata including titles, abstracts, authors, arXiv IDs, DOIs, and PDF links.","exampleAgentPrompt":"Search arXiv for the latest preprints on diffusion models for image generation — I want titles, authors, abstracts, and PDF links for the top results.","exampleUseCases":[{"title":"Tracking new LLM research papers","prompt":"Find the most recent arXiv preprints on large language model alignment — I need titles, author names, and abstracts so I can skim what's new this week."},{"title":"Discovering papers by a specific author","prompt":"Search arXiv for preprints authored by Yoshua Bengio and give me the titles, arXiv IDs, and PDF links for whatever comes up."},{"title":"Surveying a niche physics topic","prompt":"Pull arXiv preprints on topological insulators in condensed matter physics — I want the abstracts and DOIs so I can build a reading list."}],"resultDescription":"Returns a JSON response wrapping Atom XML content from arXiv, including preprint titles, abstracts, author lists, arXiv IDs, DOIs, and direct PDF links for papers matching the search query.","failureModes":["Empty result set when query terms are too specific or misspelled","arXiv API rate limiting or downtime causing upstream errors","Malformed or missing fields in returned Atom XML for older preprints","Query too broad returning irrelevant results across many categories","Network timeout if arXiv upstream is slow to respond"],"whenToPreferThis":"Choose this endpoint when an agent needs to programmatically search arXiv for preprints without managing API keys, especially within x402 micropayment pipelines or autonomous research agent workflows where per-call billing is preferable. Ideal for agent-to-agent pipelines that need to track physics, math, or CS/ML research at scale without OAuth setup.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-15T06:34:03.963Z","isFirstParty":false}