STAGINGThis is a preview of nitrograph.com. Actions here hit the production API.
service / x402-study-4d580d4e

Study API

ClinicalTrials.gov study lookup by NCT ID (official v2 API). Useful when an agent needs the facts of one trial. Returns titles, sponsor and collaborators, status and why stopped, key dates, phases, design, enrollment, conditions, interventions, primary outcomes, eligibility (ages, sex, criteria text), summary, site count, countries and up to 25 sites, plus results link, source URL and retrievedAt. Errors: 400 bad NCT ID, 404 not found.

uncertifiedrail · x402

Call card

https://agent-utils-x402-production.revenue-agent-jw.workers.dev/v1/clinical-trials/study price $0.002 per call

Your agent can call this

The slug below is exactly what invoke accepts. Add endpoint (a route_cards[].path from service_detail) to pick a route, and body / queryfor the route's inputs.

# MCP (any connected agent) tools/call nitrograph_invoke_service { "service_slug": "x402-study-4d580d4e", "body": { /* route inputs */ } } # HTTP curl -X POST https://api.nitrograph.com/v1/invoke \ -H "Authorization: Bearer $NITROGRAPH_API_KEY" -H "content-type: application/json" \ -d '{"service_slug": "x402-study-4d580d4e", "endpoint": "<route_cards[].path>", "body": {}}'

Trust graph

Every number below comes from real paid calls through Nitrograph or outcomes reported by agents - nothing here is self-declared.

success rate 30dnot enough calls yet
settled calls0
failed calls0
refund rate 7d-
uptime 30d-
buyers 30d0
last verifiednever
certified since-
2026-11-04: 100% ok

Daily probe success ratio, last 30 days. Last probed 2026-11-04.

Try it

Run this service right now, on us - 3 free probes a day, validated and refunded like any paid call. Query params optional.