SiteCheck Clinical Trials Search

x402

SiteCheck Clinical Trials Search is a paid API for AI agents from api.sitecheck-api.workers.dev, paid per call via x402, $0.002/call, status unknown (last checked 2026-10-28).

Searches ClinicalTrials.gov for studies matching a condition, drug, or keyword, with optional phase and status filters

Price / call$0.002

Seller volume →—

Success—

StatusUnknown

How this service works

Clinical trials from ClinicalTrials.gov matching words, optionally by status and phase: NCT id, title, status, phases, conditions, sponsor, start and completion dates, enrolment, number of locations and the study link. Information only, not medical advice.

Output

Returns a JSON object with the search query echoed back, a list of matching studies (each with NCT ID, title, sponsor, phase(s), status, number of locations, enrollment count, start and completion dates, conditions, and a direct ClinicalTrials.gov link), the data source URL, the timestamp of retrieval, and a disclaimer that results are informational only.

Example use cases

Patient researching treatment options

“Search ClinicalTrials.gov for any recruiting clinical trials about rheumatoid arthritis — show me up to 10 results so I can see what studies might be available.”

Pharma analyst tracking competitor pipelines

“Find me all Phase 2 clinical trials for NASH or non-alcoholic steatohepatitis, up to 20 results, regardless of status, so I can map out the competitive landscape.”

Medical writer fact-checking a report

“Look up completed clinical trials for the drug metformin and return up to 5 results — I need the trial titles, sponsors, and enrollment numbers for a report I'm writing.”

Technical details

Endpoint

GEThttps://api.sitecheck-api.workers.dev/api/clinical-trials?utm_source=zero.xyz

When to prefer

Choose this endpoint when you need structured, filterable clinical trial data sourced directly from ClinicalTrials.gov without building your own integration. It is ideal for agents that need to surface trial options for patients, researchers, or analysts, especially when filtering by phase or recruitment status is required. Prefer it over raw web search when you need machine-readable fields like NCT IDs, enrollment counts, and completion dates rather than prose summaries.

Side effects

Missing required 'q' parameter returns a validation error
Invalid phase value (not one of the allowed enums) may return no results or an error
Invalid status value may return no results
ClinicalTrials.gov API unavailable causes upstream failure
Query too broad returns truncated results capped at the limit
Limit outside 1-20 range may be rejected or clamped

Input

Schema · Request body

Field	Type	Description
inputrequired	object
output	object

Output

Schema · Response

{
  "type": "json",
  "example": {
    "query": {
      "q": "insulin",
      "phase": null,
      "status": "RECRUITING"
    },
    "source": "https://clinicaltrials.gov/api/v2/studies",
    "studies": [
      {
        "link": "https://clinicaltrials.gov/study/NCT06885736",
        "nctId": "NCT06885736",
        "start": "2025-08-07",
        "title": "LEAN Mass Preservation With Resistance Exercise and Protein During Semaglutide/Tirzepatide Therapy",
        "phases": [
          "NA"
        ],
        "status": "RECRUITING",
        "sponsor": "Dasman Diabetes Institute",
        "locations": 1,
        "completion": "2029-08-30",
        "conditions": [
          "Obesity"
        ],
        "enrollment": 232
      },
      {
        "link": "https://clinicaltrials.gov/study/NCT05241444",
        "nctId": "NCT05241444",
        "start": "2022-03-22",
        "title": "CD4^LVFOXP3 in Participants With IPEX",
        "phases": [
          "PHASE1"
        ],
        "status": "RECRUITING",
        "sponsor": "Bacchetta, Rosa, MD",
        "locations": 1,
        "completion": "2027-02",
        "conditions": [
          "IPEX"
        ],
        "enrollment": 30
      }
    ],
    "checkedAt": "2026-10-14T07:00:32.309Z",
    "disclaimer": "Information only, not medical advice.",
    "attribution": "ClinicalTrials.gov (US National Library of Medicine)"
  }
}

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