{"uid":"cap_hj69axssUuSE_fc3Bbmwl","slug":"trialscope-clinical-trial-search-8f51309c","name":"TrialScope Clinical Trial Search","description":"Per-call clinical trial search, study dossiers, and change-deltas from ClinicalTrials.gov. Paid per call via the x402 protocol (USDC); unpaid requests return HTTP 402 with payment terms in the PAYMENT-REQUIRED header. Terms of service: GET /terms (free).","url":"https://x402-trialscope.onrender.com/search?utm_source=zero.xyz","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"],"type":"string"},"queryParams":{"type":"object","properties":{"term":{"type":"string","description":"Free-text search term (disease, drug, keyword)"},"phase":{"type":"string","description":"Trial phase: 1, 2, 3, 4 (or PHASE1_PHASE2 style)"},"status":{"type":"string","description":"Overall status, e.g. RECRUITING, COMPLETED"},"sponsor":{"type":"string","description":"Lead sponsor name (partial match)"},"location":{"type":"string","description":"Location text, e.g. Boston, MA"},"pageSize":{"type":"integer","description":"Results per call (1-50, default 20)"}}}},"additionalProperties":false}}},"responseSchema":null,"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.01","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":"$0.01/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.01","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.01","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_kr0klpVzFKVVtsfF0yt5T","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.01","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Search ClinicalTrials.gov for clinical trials by keyword, phase, status, sponsor, or location and return matching study records","exampleAgentPrompt":"Search ClinicalTrials.gov for recruiting phase 3 trials studying pembrolizumab for non-small cell lung cancer in Boston, MA and show me the first 10 results.","exampleUseCases":[{"title":"Patient finding open cancer trials","prompt":"Find me recruiting phase 2 or phase 3 clinical trials for triple-negative breast cancer anywhere in New York — I want to see up to 20 results."},{"title":"Pharma researcher tracking competitor trials","prompt":"Search for all clinical trials sponsored by Pfizer that are currently recruiting and studying mRNA vaccines — give me up to 50 results."},{"title":"Physician locating rare disease trials","prompt":"Look up any recruiting clinical trials for Duchenne muscular dystrophy in the United States and show me up to 20 studies."}],"resultDescription":"Returns a list of clinical trial records from ClinicalTrials.gov matching the search criteria, including study identifiers, titles, phases, recruitment status, sponsor names, locations, and other study metadata. Results are paginated up to the requested page size (max 50).","failureModes":["HTTP 402 returned if payment header is missing or USDC payment is not attached — response includes PAYMENT-REQUIRED header with payment terms","No results returned for highly specific or misspelled search terms — try broader keywords","Invalid phase or status enum values may return an error or empty result set","Network timeout if ClinicalTrials.gov upstream is slow or unavailable","pageSize values outside 1-50 range may be rejected or clamped"],"whenToPreferThis":"Choose this endpoint when you need real-time, per-query search over the ClinicalTrials.gov database with flexible filtering by keyword, phase, status, sponsor, and location. Prefer it over direct ClinicalTrials.gov API calls when you need pay-per-use micropayment billing via x402/USDC with no subscription required. Best for agents that need on-demand trial discovery without a standing API key or subscription.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-18T18:32:00.533Z","isFirstParty":false,"canonicalSlug":"trialscope-clinical-trial-search-8f51309c"}