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ClinicalTrials.gov Study Search by Condition
x402
ClinicalTrials.gov Study Search by Condition is a paid API for AI agents from foundry-par007-machine-revenue-mainnet.inference-chip-index.workers.dev, paid per call via x402, $0.01/call, status unknown (last checked 2026-09-14).
Returns recently updated ClinicalTrials.gov study identifiers, titles, and registry status for a given medical condition, with registry processing date.
Price / call$0.01
Success—
StatusUnknown
How this service works
Pay-per-request evidence and data tools: CSV validation and reconciliation, DNS/email configuration evidence, and bounded official weather, earthquake, vehicle, company and study records. Exact USDC prices, explicit JSON contracts and source provenance. No mailbox, ownership, medical or safety guarantees.
Output
Returns a JSON object containing the condition queried, a list of matching ClinicalTrials.gov studies (each with NCT identifier, title, and registry status), the registry processing date, source attribution, freshness metadata including retrieval timestamp, and provenance details including licensing terms and upstream API documentation URL.
Example use cases
Rare disease trial discovery
“Can you find the latest clinical trials registered on ClinicalTrials.gov for Duchenne muscular dystrophy? I want to see up to 15 study IDs, their titles, and whether they're currently active.”
Competitive landscape research
“Pull the 20 most recently updated ClinicalTrials.gov entries for non-small cell lung cancer — I need the NCT numbers and registry status for each one.”
Patient advocacy condition check
“Search ClinicalTrials.gov for studies on fibromyalgia and show me up to 10 results with their titles and current status so I can share them with a patient support group.”
Technical details
Endpoint
POSThttps://foundry-par007-machine-revenue-mainnet.inference-chip-index.workers.dev/v2/official/clinicaltrials-searchWhen to prefer
Choose this endpoint when you need to discover multiple clinical trial registry entries for a specific medical condition from ClinicalTrials.gov, especially when you need recently updated studies with their NCT identifiers and status. Prefer this over the NCT resolver sibling when you don't yet have specific NCT IDs and need to search by condition name. Best for research, patient advocacy, competitive intelligence, or clinical landscape surveys where breadth across trials matters more than deep detail on one trial.
Side effects
- Condition string too short (under 2 characters) or too long (over 120 characters) returns a validation error
- Limit outside 1-20 range returns a validation error
- No matching studies found returns an empty normalizedResult array
- ClinicalTrials.gov upstream API unavailable may return a service error or stale cache
- Ambiguous or misspelled condition name may return zero results or unrelated studies
- Payment not included or insufficient USDC triggers x402 payment required response
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| limit | integer | |
| condition | string |
Output
Schema · Response
{
"type": "json",
"example": {
"route": "clinicaltrials-search",
"result": {
"query": {
"limit": 5,
"condition": "asthma"
},
"source": "ClinicalTrials.gov",
"freshness": {
"state": "CURRENT_RETRIEVAL",
"retrievedAt": "2026-09-06T00:00:00Z",
"cacheAgeSeconds": 0,
"maximumCacheSeconds": 0,
"recordAgeIsNotRetrievalAge": true
},
"sourceUrl": "https://clinicaltrials.gov",
"observedAt": "2026-09-06T00:00:00Z",
"provenance": {
"license": "ClinicalTrials.gov terms; bounded factual study metadata only",
"termsUrl": "https://clinicaltrials.gov/about-site/terms-conditions",
"truncated": false,
"attribution": "ClinicalTrials.gov, US National Library of Medicine",
"limitations": [
"Synthetic example only; identifiers and null values illustrate fields, not a live observation."
],
"modifications": "Selected factual fields, normalized names and bounded result count; no source ownership claimed.",
"upstreamCalls": 1,
"documentationUrl": "https://clinicaltrials.gov/data-api/api"
},
"sourceUpdatedAt": null,
"normalizedResult": [
{
"nctId": "NCT00110383",
"title": null,
"phases": [],
"sourceUrl": "https://clinicaltrials.gov/study/NCT00110383",
"startDate": null,
"studyType": null,
"overallStatus": null,
"completionDate": null,
"lastUpdatePostDate": null
}
],
"sourceProcessedAt": null,
"rawSourceIdentifiers": []
},
"observed_at": "2026-09-06T00:00:00Z"
}
}Tags
x402
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