{"entry":{"slug":"clinicaltrials-api","name":"ClinicalTrials.gov","category":"api","summary":"Search registered clinical studies.","description":"Official US registry of clinical trials, v2 JSON API with rich filters.","auth_mode":"none","endpoint":"https://clinicaltrials.gov/api/v2/studies","docs_url":"https://clinicaltrials.gov/data-api/api","tags":["health","research","open-data"],"capabilities":["search_studies","study_detail"],"auth_params":[],"input_format":"query params","output_format":"json","rate_limit":"","pricing":"free","invocation_example":"curl -s \"https://clinicaltrials.gov/api/v2/studies?pageSize=1\"","verified":false,"verified_at":null,"featured":false,"checks_total":58,"checks_ok":58,"avg_latency_ms":118,"reports_count":0,"health_ok":true,"health_status_code":200,"health_checked_at":"2026-11-02T00:17:52.091+00:00","health_latency_ms":121,"probe_url":null},"watch":{"hint":"Follow \"clinicaltrials-api\": get alerted when it goes down, comes back, or changes shape. Free, 3 tools per key. Email follows are confirmed by a one-click email before alerts start.","how":"POST https://agentnexus.app/api/public/watch with {\"slug\":\"clinicaltrials-api\"} and your x-api-key (the key's email gets the alerts), or add \"email\" / \"webhook_url\". Email follows must be confirmed from the inbox before alerts start."}}