{"uid":"cap_JU9XpPM0jpE6Ki5txW3MQ","slug":"ncbi-nucleotide-genbank-e-search-via-clonecho-59a606d2","name":"NCBI Nucleotide (GenBank) E-Search via clonecho","description":"Search NCBI Nucleotide (GenBank) and return matching UIDs for query {q} via E-utilities. Query: ?q= Returns JSON.","url":"https://clonecho.builda.company/x402/s/ncbi-esearch-nuccore","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_EO4mUgwvv9m-kd9XGoDEF","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 Nucleotide (GenBank) database and returns matching UIDs for a given query using NCBI E-utilities.","exampleAgentPrompt":"Search GenBank's nucleotide database for sequences matching 'BRCA1 homo sapiens' and give me the matching UIDs I can use to fetch the actual records.","exampleUseCases":null,"resultDescription":"A JSON object containing a list of NCBI Nucleotide UIDs (numeric identifiers) matching the search query, which can then be used to fetch full sequence records from GenBank via other E-utility endpoints.","failureModes":["Empty result set if no nucleotide records match the query","Malformed or overly broad query returning too many UIDs","NCBI E-utilities rate limiting or downtime causing failure","Invalid query syntax returning an error response","Network timeout if NCBI backend is slow to respond"],"whenToPreferThis":"Use this endpoint when you need to discover NCBI Nucleotide / GenBank record UIDs for a biological query (gene, organism, accession, keyword) as a first step before fetching full sequence records. Prefer this over direct NCBI API calls when you need a simple, paid-per-call REST interface without managing NCBI API keys or rate limits.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-14T07:21:53.558Z","isFirstParty":false}