{"uid":"cap_pZ_h60lIfDEyvkFA5F68f","slug":"ncbi-dbgap-genotype-phenotype-study-search-e-utilities-86b2b10e","name":"NCBI dbGaP Genotype-Phenotype Study Search (E-utilities)","description":"Search the NCBI dbGaP genotype-phenotype study database and return matching UIDs for query {q} via E-utilities. Query: ?q= Returns JSON.","url":"https://clonecho.builda.company/x402/s/ncbi-esearch-gap","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_KMTi6SxnhS6I4uSZZqKGT","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 dbGaP genotype-phenotype study database and returns matching study UIDs for a given query string via the NCBI E-utilities API.","exampleAgentPrompt":"Search dbGaP on NCBI for genotype-phenotype studies related to type 2 diabetes and give me the matching study UIDs.","exampleUseCases":null,"resultDescription":"A JSON response containing matching dbGaP study UIDs (record identifiers) corresponding to the submitted search query, following the NCBI E-utilities esearch format — typically includes a list of UIDs, result count, and query translation metadata.","failureModes":["Empty result set if the query matches no dbGaP studies (returns zero UIDs)","Malformed or overly broad query may return unexpected or irrelevant UIDs","NCBI E-utilities rate limiting or temporary unavailability causing errors","Query string not URL-encoded properly leading to request failure","Payment failure ($0.02 USDC) blocking the request"],"whenToPreferThis":"Use this endpoint when you need to programmatically search the NCBI dbGaP database for genotype-phenotype study records and retrieve their UIDs — particularly useful as a first step before fetching full study metadata. Prefer this over direct NCBI API calls when you need a metered, proxied access point with x402 payment support.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-14T07:21:49.841Z","isFirstParty":false}