{"uid":"cap_TWZeYe7-HIlOhyPIiJ-1u","slug":"ncbi-e-utilities-pubmed-central-full-text-article-search-63a4f5db","name":"NCBI E-utilities PubMed Central Full-Text Article Search","description":"Search PubMed Central full-text articles and return matching UIDs for query {q} via E-utilities. Query: ?q= Returns JSON.","url":"https://clonecho.builda.company/x402/s/ncbi-esearch-pmc","method":"POST","headers":{},"bodySchema":null,"responseSchema":null,"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.02","displayCostAsset":"USDC","priceDynamic":false,"priceHint":null,"priceStatus":"priced","priceSource":"registry","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_G5qGHl-AbaancOyVK37sM","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.02","costPer":"request","priority":0,"asset":"0x036CbD53842c5426634e7929541eC2318f3dCF7e","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Searches PubMed Central full-text articles using NCBI E-utilities and returns matching article UIDs for a given query string.","exampleAgentPrompt":"Search PubMed Central for full-text articles about CRISPR gene editing and give me the article UIDs I can use to pull the papers.","exampleUseCases":null,"resultDescription":"Returns a JSON object containing matching PubMed Central article UIDs (PMCIDs) for the given search query, along with metadata such as result count — suitable for downstream retrieval of full article content via NCBI E-utilities.","failureModes":["Empty result set when query matches no PMC articles (returns zero UIDs)","Malformed or missing query parameter returns an error or empty response","NCBI E-utilities rate limits may cause transient failures under high request volume","Very broad queries may return large UID lists that are difficult to paginate","Spelling errors or non-standard terminology may yield poor or zero results"],"whenToPreferThis":"Use this endpoint when you need to search PubMed Central's full-text article database and retrieve article UIDs for biomedical, life science, or medical research queries. Prefer this over general web search when you specifically need open-access PMC full-text article identifiers compatible with NCBI E-utilities workflows for downstream content retrieval.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-15T13:11:16.038Z","isFirstParty":false}