{"uid":"cap_5oeO1AmsLv7gSjY8P2-w0","slug":"pubmed-search-via-ncbi-e-utilities-x402-6697c92c","name":"PubMed Search via NCBI E-utilities (x402)","description":"PubMed search via NCBI E-utilities (keyless). Query → count + idlist (retmax≤10) + optional title/journal/pubdate.","url":"https://x402-v2-mint-pubmed-search.vercel.app/v1/pubmed-search?utm_source=zero.xyz","method":"POST","headers":{},"bodySchema":{"type":"object","properties":{"q":{"type":"string","maxLength":256},"term":{"type":"string","maxLength":256},"query":{"type":"string","maxLength":256,"description":"PubMed search query"},"retmax":{"type":"integer","default":5,"maximum":10,"minimum":1},"request_id":{"type":"string"}}},"responseSchema":{"type":"json","example":{"ok":true,"skill":"pubmed-search","charged":true,"summary":"ok"}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.003","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":"$0.003/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.003","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.003","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_Q7CF7wL874UOEDTotugpN","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.003","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Searches PubMed using NCBI E-utilities and returns article count, PubMed ID list, and optional metadata (title, journal, publication date) for up to 10 results.","exampleAgentPrompt":"Search PubMed for up to 8 articles about CRISPR gene editing in cancer therapy and give me the PubMed IDs along with titles and journals.","exampleUseCases":[{"title":"Drug interaction literature review","prompt":"Search PubMed for up to 5 recent articles about metformin and cardiovascular outcomes, and include the title and journal name for each result."},{"title":"Rare disease research discovery","prompt":"Can you pull up to 10 PubMed articles on Niemann-Pick disease type C, and show me the publication dates and journals so I can find the most recent studies?"},{"title":"Gene therapy evidence gathering","prompt":"Search PubMed for studies on AAV gene therapy for Duchenne muscular dystrophy — I need up to 7 results with their PubMed IDs and titles."}],"resultDescription":"Returns a JSON object with a success flag, the total article count matching the query, a list of up to 10 PubMed IDs, and optional metadata fields (title, journal name, publication date) for each article. Also includes a skill name and charge confirmation.","failureModes":["Empty or malformed query string returns no results or an error","retmax exceeding 10 is rejected by schema validation","NCBI E-utilities rate limiting or downtime causes upstream failure","Very broad queries may return high counts but only up to 10 IDs","Payment failure via x402 protocol blocks the request"],"whenToPreferThis":"Choose this endpoint when you need keyless, pay-per-call access to PubMed literature search without managing an NCBI API key. It is ideal for AI agents that need to search biomedical and clinical literature on demand, retrieve article metadata alongside PubMed IDs, and integrate easily into automated research workflows via the x402 micropayment protocol.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-31T18:35:58.010Z","isFirstParty":false,"canonicalSlug":"pubmed-search-via-ncbi-e-utilities-x402-6697c92c"}