{"uid":"cap__NNXHn6SGNvNG-u0hhodR","slug":"clinicaltrials-gov-search-3866ba0b","name":"ClinicalTrials.gov Search","description":"Search ClinicalTrials.gov by indication, company, molecule or free text and get a ranked list of normalized trial records with total count and on-page facet summary. Optional phase, status, study-type and country filters. A cheap first step before /trials/study or /trials/pipeline.","url":"https://api.agentstools.dev/trials/search","method":"GET","headers":{},"bodySchema":{"type":"object","$schema":"https://json-schema.org/draft/2020-12/schema","required":["input"],"properties":{"input":{"type":"object","required":["type","method"],"properties":{"type":{"type":"string","const":"http"},"method":{"enum":["GET","HEAD","DELETE"],"type":"string"},"queryParams":{"type":"object","required":[],"properties":{"cond":{"type":"string","description":"Condition, indication or disease"},"intr":{"type":"string","description":"Intervention, drug or molecule name"},"lead":{"type":"string","description":"Lead sponsor name"},"term":{"type":"string","description":"Free-text other terms"},"phase":{"enum":["0","1","2","3","4"],"type":"string","description":"Trial phase to filter by, where 0 is Early Phase 1"},"spons":{"type":"string","description":"Sponsor or collaborator name"},"status":{"enum":["recruiting","not_yet_recruiting","active_not_recruiting","completed","terminated","withdrawn","suspended"],"type":"string","description":"Overall recruitment status to filter by"},"titles":{"type":"string","description":"Title or acronym terms"},"country":{"type":"string","description":"Country to narrow trial sites"},"page_size":{"type":"integer","maximum":50,"minimum":1,"description":"Max records to return, default 10"},"study_type":{"enum":["int","obs","exp"],"type":"string","description":"Study type: int interventional, obs observational, exp expanded access"}}}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object"}}}}},"responseSchema":null,"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.015","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":"$0.015/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.015","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.015","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_exf6UgqK6iQfPw7S7qw02","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.015","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Search ClinicalTrials.gov by condition, intervention, sponsor, or free text and return a ranked, normalized list of clinical trial records with facet summary and total count.","exampleAgentPrompt":"Can you search ClinicalTrials.gov for recruiting phase 3 interventional trials for non-small cell lung cancer sponsored by AstraZeneca — show me up to 20 results?","exampleUseCases":null,"resultDescription":"A ranked list of normalized clinical trial records (up to page_size results), each containing NCT ID, title, phase, status, sponsor, conditions, interventions, and country. Also includes total match count and an on-page facet summary (e.g. breakdown by phase or status) to help orient further queries.","failureModes":["No matching trials found — returns empty list with total count of 0","Invalid enum value for phase/status/study_type — returns validation error","ClinicalTrials.gov upstream timeout or unavailability — returns 5xx error","Missing required query intent (no cond, intr, lead, term, or titles provided) — may return overly broad or error result","page_size exceeds maximum of 50 — returns validation error"],"whenToPreferThis":"Use this endpoint as a fast, cheap first step when you need to discover or enumerate clinical trials matching a condition, drug, or sponsor. Prefer it over deeper trial-detail endpoints (/trials/study, /trials/pipeline) when you need a list overview, facet counts, or want to check trial existence before fetching full records. Best when the user wants to explore the trial landscape rather than retrieve a single known trial.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-15T01:13:29.957Z","isFirstParty":false}