{"uid":"cap_6wiYWjBhjAOC8QmuSygP4","slug":"ncbi-bookshelf-e-search-d6f11606","name":"NCBI Bookshelf E-Search","description":"Search the NCBI NCBI Bookshelf biomedical-books database and return matching UIDs for query {q} via E-utilities. Query: ?q= Returns JSON.","url":"https://clonecho.builda.company/x402/s/ncbi-esearch-books","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_hcs9l5EPQr-vbqlwKzN3b","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 the NCBI Bookshelf biomedical-books database and returns matching UIDs for a given query via NCBI E-utilities","exampleAgentPrompt":"Can you search NCBI Bookshelf for books related to 'pharmacokinetics' and give me the matching UIDs?","exampleUseCases":null,"resultDescription":"A JSON response containing NCBI UIDs (unique identifiers) for books in the NCBI Bookshelf database that match the provided search query, along with metadata such as result count and query details returned by the E-utilities esearch endpoint.","failureModes":["Empty result set if the query matches no books in the Bookshelf database","Malformed or missing query parameter returns an error or empty response","NCBI E-utilities rate limiting or downtime causes failures","Overly broad queries return an unmanageably large list of UIDs","Spelling errors in the query yield zero or irrelevant results"],"whenToPreferThis":"Use this endpoint when you need to discover NCBI Bookshelf UIDs for biomedical or medical textbooks matching a topic or keyword — especially as a first step before fetching full book details via other NCBI E-utilities. Prefer this over general web search when you need structured NCBI identifiers for downstream processing, citation, or programmatic retrieval of book content.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-13T18:52:14.064Z","isFirstParty":false}