{"uid":"cap_fp0iAmqdvYgUhuPgHyH63","slug":"synapse-clinical-trials-search-2c6c220d","name":"Synapse Clinical Trials Search","description":"Public data and utility APIs paid per call in USDC on Base (x402). No accounts, no API keys. 174 routes: crypto/equity data, onchain reads, DNS/email/security intel, geo/weather, x402 payment diagnostics, dev utilities and more.","url":"https://anibalb.duckdns.org/x402/clinical-trials?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","HEAD","DELETE"],"type":"string"},"queryParams":{"type":"object","properties":{}}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object"}}}}},"responseSchema":{"type":"json","example":{"count":2,"trials":[{"nctId":"NCT07839429","phase":["PHASE2"],"title":"...","studyType":"INTERVENTIONAL","leadSponsor":"...","overallStatus":"RECRUITING"}]}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.002","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":"$0.002/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.002","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.002","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_gzCFgpiDLOAyHXSLHcZZg","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.002","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Returns a list of clinical trials including NCT ID, phase, title, study type, lead sponsor, and recruitment status","exampleAgentPrompt":"Can you pull a list of clinical trials that are currently recruiting, especially any Phase 2 interventional studies? I want to see the NCT IDs, sponsors, and their current status.","exampleUseCases":[{"title":"Finding recruiting trials for a condition","prompt":"Look up clinical trials that are currently recruiting for Type 2 diabetes — I want to see the phase, study type, and who the lead sponsor is for each one."},{"title":"Pharmaceutical competitive intelligence","prompt":"Can you fetch a list of clinical trials and find which sponsors are running Phase 2 or Phase 3 interventional studies right now? I want to map the competitive landscape for a new drug we're developing."},{"title":"Patient eligibility research","prompt":"My doctor mentioned I might qualify for a clinical trial. Can you search for currently recruiting interventional studies and show me the NCT IDs and titles so I can bring a list to my next appointment?"}],"resultDescription":"Returns a JSON object with a count of matching trials and an array of trial objects, each containing: NCT ID, phase (e.g. PHASE2), title, study type (e.g. INTERVENTIONAL), lead sponsor name, and overall status (e.g. RECRUITING).","failureModes":["Payment failure via x402 protocol returns 402 with payment instructions","No trials found returns count:0 and empty trials array","Network timeout if upstream ClinicalTrials.gov is slow","Malformed query parameters may return empty or error response","DuckDNS domain may have intermittent availability"],"whenToPreferThis":"Choose this endpoint when you need quick, pay-per-call access to clinical trial data without setting up API keys or accounts. It is ideal for agents needing to programmatically query ClinicalTrials.gov data via a micropayment model on Base using USDC. Prefer alternatives (direct ClinicalTrials.gov API) if you need advanced filtering, full trial details, or high-volume queries where per-call pricing becomes expensive.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-31T18:39:40.011Z","isFirstParty":false,"canonicalSlug":"synapse-clinical-trials-search-2c6c220d"}