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Use when an agent must verify a citation or DOI, find papers on a topic, or get a paper's authors, journal, date, citation count and links.","url":"https://paper-lookup-production-56b0.up.railway.app/v1/papers/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","properties":{"doi":{"type":"string","description":"DOI to resolve, e.g. 10.1038/nature12373"},"type":{"type":"string","description":"Crossref type, e.g. journal-article, book-chapter, posted-content"},"limit":{"type":"integer","description":"Results 1-20 (default 10)"},"query":{"type":"string","description":"Keywords (title, abstract words, topics)"},"author":{"type":"string","description":"Author name filter"},"from_year":{"type":"integer","description":"Earliest publication year"},"until_year":{"type":"integer","description":"Latest publication year"}}}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object"}}}}},"responseSchema":{"type":"json","example":{"legal":{"terms":"https://paper-lookup-production-56b0.up.railway.app/terms","privacy":"https://paper-lookup-production-56b0.up.railway.app/privacy"},"total":28674,"status":"ok","results":[{"doi":"10.1016/j.watres.2018.05.060","url":"https://doi.org/10.1016/j.watres.2018.05.060","type":"journal-article","title":"Microplastics in drinking water ...","authors":[{"name":"A. Author","orcid":null}],"cited_by":512,"container":"Water Research","published":"2018-09-01"}],"use_when":"Use when an agent must verify a citation or DOI, find papers on a topic, or get a paper's authors, journal, date, citation count and links."}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.005","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":"$0.005/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.005","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.005","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_M2sbYVp4-EBeovrwdYfU5","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.005","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Search or resolve scholarly publications using Crossref's 150M+ record database, returning metadata including authors, journal, citation count, and full-text links.","exampleAgentPrompt":"Can you look up the paper with DOI 10.1038/nature12373 and tell me the authors, journal, publication date, and how many times it's been cited?","exampleUseCases":[{"title":"Citation verification for a report","prompt":"I need to verify this citation before I submit my paper — can you confirm the authors, journal, and publication date for DOI 10.1016/j.watres.2018.05.060 and check how many times it's been cited?"},{"title":"Literature search on a research topic","prompt":"Find me up to 10 journal articles about CRISPR gene editing published between 2019 and 2023 — I need the titles, authors, and citation counts."},{"title":"Author publication lookup","prompt":"What papers has Jennifer Doudna published? Search for her as an author and give me a list with titles, journals, and publication dates."}],"resultDescription":"Returns a JSON object with status, total result count, and an array of paper records each containing: DOI, canonical URL, publication type, title, authors (with ORCID where available), citation count, container (journal/publisher name), and publication date. 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