{"uid":"cap_7XDwM4AWrsGmAO3JeyZEi","slug":"citepulse-single-paper-lookup-58a33833","name":"CitePulse Single-Paper Lookup","description":"Single-paper lookup by DOI or title for research agents — citation count, influence, open-access status with a direct legal-OA link (Unpaywall), venue, and a TLDR. Deterministic passthrough over OpenAlex + Semantic Scholar + Unpaywall, no synthesis, cheap and fast.","url":"https://citepulse.theaslangroupllc.com/api/paper","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","HEAD","DELETE"],"type":"string"},"queryParams":{"type":"object","properties":{"doi":{"type":"string","description":"DOI of the paper, e.g. 10.1038/nature12373 (preferred — exact match)"},"title":{"type":"string","description":"Paper title (used only if doi is omitted — free-text title search, less certain)"}}}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"errors":{"type":"object","description":"Documented error responses, keyed by HTTP status code","additionalProperties":{"type":"object","required":["description"],"properties":{"example":{"type":"object"},"description":{"type":"string"}}}},"example":{"type":"object"}}}}},"responseSchema":{"type":"json","example":{"doi":"10.1038/nature12373","tldr":"Demonstrates nanoscale thermometry using NV centres in diamond to map temperature at the subcellular level.","year":2013,"title":"Nanometre-scale thermometry in a living cell","venue":"Nature","open_access":{"is_oa":true,"status":"green","best_url":"https://arxiv.org/pdf/1304.1068"},"is_retracted":false,"cited_by_count":1787}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.02","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":"$0.02/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.02","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.02","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_kTvty463jGRvqCeI7YIJT","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.02","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Retrieves citation count, influence score, open-access status with legal OA link, venue, and TLDR for a single paper identified by DOI or title","exampleAgentPrompt":"Can you pull up the citation count, open-access link, and a quick summary for the paper '10.1038/s41586-021-03819-2'?","exampleUseCases":[{"title":"Verify open access before recommending papers","prompt":"I'm building a reading list for my grad students—can you check which of these papers are freely available and grab the open-access links for the ones that are?"},{"title":"Track influential citations for grant proposals","prompt":"I need to know how many times this paper has been cited and how influential it is in the field—it's going in our NSF proposal abstract."},{"title":"Quickly fact-check reference metadata","prompt":"Before I submit this manuscript, can you verify the venue, citation count, and grab the TLDR for each paper in my bibliography?"}],"resultDescription":"Returns a structured record for the requested paper including: total citation count, influence/prominence score from Semantic Scholar, open-access status (gold/green/closed), a direct legal open-access URL via Unpaywall if available, the publishing venue/journal name, and a machine-generated TLDR abstract summary.","failureModes":["DOI not found in OpenAlex or Semantic Scholar — returns 404 or empty result","Title-based lookup is ambiguous and may return wrong paper — DOI preferred","Paper is very recent and not yet indexed — citation data may be zero or missing","Unpaywall has no OA record — open-access URL will be null","Malformed DOI format causes lookup failure","Rate limit or upstream provider outage returns 503"],"whenToPreferThis":"Use this endpoint when you need fast, deterministic metadata for a single known paper — especially when you have a DOI or precise title. 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