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TrialScope — Clinical Trial Snapshot
x402
TrialScope — Clinical Trial Snapshot is a paid API for AI agents from x402-trialscope.onrender.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-19).
Fetches current study dossiers and change-deltas for up to 25 ClinicalTrials.gov trials by NCT ID in a single paid call
Price / call$0.01
Success—
StatusUnknown
How this service works
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).
Output
Returns a structured study dossier for each requested NCT ID, including current trial status, phase, sponsor, intervention details, eligibility criteria, primary endpoints, and a change-delta highlighting what has been modified since the previous snapshot on ClinicalTrials.gov.
Example use cases
Portfolio trial status monitoring
“I'm tracking 10 oncology trials for our research team — can you fetch the current status and flag any changes for NCT04283461, NCT03498274, NCT05112796, NCT04505722, NCT03761914, NCT04867369, NCT04432753, NCT05001386, NCT03288545, and NCT04826029?”
Eligibility criteria lookup for patient matching
“Can you pull the full study dossier for NCT04283461 — specifically the eligibility criteria and intervention details — so I can check if my patient qualifies?”
Regulatory change-delta tracking
“We need to know if any protocol amendments or status changes have been filed for these three trials since we last checked: NCT03498274, NCT05112796, and NCT04505722 — show me what's different.”
Technical details
Endpoint
POSThttps://x402-trialscope.onrender.com/snapshot?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need structured, per-trial study dossiers or change-deltas for a known set of NCT IDs — up to 25 at a time — without maintaining a subscription. It is ideal for spot-checks, patient eligibility matching, regulatory monitoring workflows, or any agent that needs to compare current trial state against a prior snapshot. Prefer this over manual ClinicalTrials.gov queries when you want machine-readable output and pay-per-call pricing with no standing subscription.
Side effects
- HTTP 402 if the USDC payment via x402 protocol is missing or insufficient — response includes payment terms in PAYMENT-REQUIRED header
- Invalid or non-existent NCT IDs return empty results or an error for that specific ID
- Exceeding the 25-ID limit per call results in a validation error
- ClinicalTrials.gov upstream unavailability may cause delayed or partial results
- Malformed request body (wrong JSON structure) returns a 400 Bad Request
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| nctIds | array |
Tags
x402
Reviews
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Zero review prompt (fires after every successful call)
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