Do I need an API Key or registration?

No. ClinicalTrials.gov is a fully public service maintained by the US National Library of Medicine. All data is accessible without any authentication.

What types of studies can I search for?

The database covers interventional trials (testing drugs, devices, procedures), observational studies, and expanded access programs. You can search across all phases, from early Phase 1 research to post-market Phase 4 surveillance.

Is the trial recruiting status updated in real time?

The data reflects what is currently published on the ClinicalTrials.gov database. Sponsors typically update the registry directly, so you will see the latest status logged in their system.

ClinicalTrials.gov MCP Server

Name: ClinicalTrials.gov
Availability: InStock
Author: Vinkius

clinicaltrials.gov

Built by Vinkius GDPR ToolsFree

Search the world's largest registry of clinical research studies — covering diseases, drugs, and experimental therapies across all phases.

Vinkius AI Gateway supports streamable HTTP and SSE.

Works with every AI agent you already use

…and any MCP-compatible client

ClinicalTrials.gov MCP Server: see your AI Agent in action

AI Agent→Vinkius→ClinicalTrials.gov

You

Vinkius AI Gateway

GDPR·High Security·Kill Switch·Ultra-Low Latency·Plug and Play

Built-in capabilities (3)

find_recruiting_trials

Useful for patients and healthcare providers looking for active enrollment opportunities. Find clinical trials that are actively recruiting participants for a specific medical condition

get_trial_details

Retrieve full details of a specific clinical trial by its NCT identifier

search_clinical_trials

Can filter by recruitment status and trial phase. Search the ClinicalTrials.gov database for studies by keyword, condition, drug name, or sponsor

What this connector unlocks

The ClinicalTrials.gov MCP Server connects your AI agent to the United States National Institutes of Health (NIH) clinical research database — the gold standard for clinical trial transparency worldwide.

Core Capabilities

Universal Trial Search — Query over 500,000 registered studies by condition, drug name, sponsor, or any keyword. Filter by recruitment status and trial phase to pinpoint exactly what matters.
Deep Trial Profiles — Retrieve full study protocols including eligibility criteria, enrollment targets, intervention details, and sponsor information for any registered trial.
Active Recruitment Finder — Dedicated tool for patients and clinicians to discover trials actively enrolling participants right now, searchable by medical condition.

Zero authentication required. Fully open public data maintained by the National Library of Medicine. Critical for pharmaceutical researchers, healthcare professionals, patient advocates, and biotech analysts.

Frequently asked questions

Give your AI agents the power of ClinicalTrials.gov

Access ClinicalTrials.gov and 2,000+ MCP servers — ready for your agents to use, right now. No glue code. No custom integrations. Just plug Vinkius AI Gateway and let your agents work.

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