Clinicaltrialsgov MCP Server

ClinicalTrials.gov MCP server. Search studies, retrieve results, match patients to eligible trials.

90 7 tools GitHub

No known CVEs

Apache-2.0 license

Actively maintained

Last commit 1d ago

Works with most clients

Transport: stdio, sse, http

7 tools · ~450 tok

Grade A · 0.2% of 200K ctx

MCPpedia last refreshed this data 15h ago

Edit this pageView history

Clinicaltrialsgov MCP Server is an MCP server that ClinicalTrials.gov MCP server. Search studies, retrieve results, match patients to eligible trials. Its tool list has not been published yet over stdio, sse and http, requires no API key, and scores 72/100 on MCPpedia's security, maintenance and efficiency rubric.

Health

Step 1

Install in your client

Config is the same across clients — only the file and path differ.

Supported in Claude Desktopstdio, sse, http · Node 18+

Paste into ~/Library/Application Support/Claude/claude_desktop_config.json

{
  "mcpServers": {
    "clinicaltrialsgov-mcp-server": {
      "url": "https://clinicaltrials.caseyjhand.com/mcp",
      "type": "streamable-http"
    }
  }
}

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[![MCPpedia Score](https://mcppedia.org/api/badge/io-github-cyanheads-clinicaltrialsgov-mcp-server)](https://mcppedia.org/s/io-github-cyanheads-clinicaltrialsgov-mcp-server)

Read me

What Clinicaltrialsgov MCP Server does

Public Hosted Server: https://clinicaltrials.caseyjhand.com/mcp

Test This Server

No automated test available for this server. Check the GitHub README for setup instructions.

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Scored, not listed

Why this score

Five weighted categories — click any category to see the underlying evidence.

Score breakdown

72/100across 5 weighted dimensions

How we score →

0255075100

−28

Security

Maintenance

Efficiency

Documentation

Compatibility

Categoriesclick a row to see evidence

Security

OSV.dev

No known CVEs.

No package registry to scan.

Inventory

Tools (7)

Click any tool to inspect its schema.

~450 tokens total

Inventory

Resources (1)

clinicaltrials

Fetch a single clinical study by NCT ID. Full JSON.

clinicaltrials://{nctId}

Inventory

Prompts (1)

analyze_trial_landscape

Adaptable workflow for data-driven trial landscape analysis using count + search tools.

Community

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Frequently Asked Questions

Is Clinicaltrialsgov MCP Server safe to use?: Clinicaltrialsgov MCP Server has no known CVEs as of the latest MCPpedia security scan. It does not require authentication, so any local process can connect — keep this in mind in shared environments. Licensed under Apache-2.0.
How do I install Clinicaltrialsgov MCP Server?: Clinicaltrialsgov MCP Server supports copy-paste install configs on its MCPpedia page for Claude Desktop, Cursor, and Claude Code. Scroll to the Quick Install section and select your client.
What can Clinicaltrialsgov MCP Server do?: Clinicaltrialsgov MCP Server provides 7 tools: clinicaltrials_search_studies, clinicaltrials_get_study_record, clinicaltrials_get_study_count, clinicaltrials_get_field_values, clinicaltrials_get_field_definitions and 2 more. See the full tools list on the server page for descriptions and parameters.
What AI clients work with Clinicaltrialsgov MCP Server?: Clinicaltrialsgov MCP Server is compatible with claude-desktop, cursor, claude-code. It uses stdio and sse and http transport.
Is Clinicaltrialsgov MCP Server actively maintained?: Clinicaltrialsgov MCP Server is actively maintained — last commit was 1 day ago. It has 90 GitHub stars.

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Community

Discussion

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Has anyone used this with Cursor?How do you handle auth?Any alternatives?

Overview

Seven tools for searching, discovering, analyzing, and matching clinical trials:

Tool Name

Description

clinicaltrials_search_studies

Search studies with full-text queries, filters, pagination, sorting, and field selection.

clinicaltrials_get_study_record

Fetch a single study by NCT ID. Returns the full record: protocol, eligibility, outcomes, arms, interventions, contacts, and locations.

clinicaltrials_get_study_count

Get total study count for a query without fetching data. Fast statistics and breakdowns.

clinicaltrials_get_field_values

Discover valid values for API fields (status, phase, study type, etc.) with per-value counts.

clinicaltrials_get_field_definitions

Browse the study data model field tree — piece names, types, nesting. Supports subtree navigation and keyword search.

clinicaltrials_get_study_results

Extract outcomes, adverse events, participant flow, and baseline from completed studies. Optional summary mode reduces ~200KB payloads to ~5KB; outcomeLimit / adverseEventLimit cap full mode without leaving it.

clinicaltrials_find_eligible

Match patient demographics and conditions to eligible recruiting trials. Provide age, sex, conditions, and location to find studies with

Frequently Asked Questions

Is Clinicaltrialsgov MCP Server safe to use?

Clinicaltrialsgov MCP Server has no known CVEs as of the latest MCPpedia security scan. It does not require authentication, so any local process can connect — keep this in mind in shared environments. Licensed under Apache-2.0.

How do I install Clinicaltrialsgov MCP Server?

Clinicaltrialsgov MCP Server supports copy-paste install configs on its MCPpedia page for Claude Desktop, Cursor, and Claude Code. Scroll to the Quick Install section and select your client.

What can Clinicaltrialsgov MCP Server do?

Clinicaltrialsgov MCP Server provides 7 tools: clinicaltrials_search_studies, clinicaltrials_get_study_record, clinicaltrials_get_study_count, clinicaltrials_get_field_values, clinicaltrials_get_field_definitions and 2 more. See the full tools list on the server page for descriptions and parameters.

What AI clients work with Clinicaltrialsgov MCP Server?

Clinicaltrialsgov MCP Server is compatible with claude-desktop, cursor, claude-code. It uses stdio and sse and http transport.

Is Clinicaltrialsgov MCP Server actively maintained?

Clinicaltrialsgov MCP Server is actively maintained — last commit was 1 day ago. It has 90 GitHub stars.

clinicaltrialsgov-mcp-server

Search ClinicalTrials.gov trials, retrieve study details and results, and match patients to eligible trials via MCP. STDIO or Streamable HTTP.

7 Tools • 1 Resource • 1 Prompt

Public Hosted Server: https://clinicaltrials.caseyjhand.com/mcp

Overview

Seven tools for searching, discovering, analyzing, and matching clinical trials:

Tool Name	Description
`clinicaltrials_search_studies`	Search studies with full-text queries, filters, pagination, sorting, and field selection.
`clinicaltrials_get_study_record`	Fetch a single study by NCT ID. Returns the full record: protocol, eligibility, outcomes, arms, interventions, contacts, and locations.
`clinicaltrials_get_study_count`	Get total study count for a query without fetching data. Fast statistics and breakdowns.
`clinicaltrials_get_field_values`	Discover valid values for API fields (status, phase, study type, etc.) with per-value counts.
`clinicaltrials_get_field_definitions`	Browse the study data model field tree — piece names, types, nesting. Supports subtree navigation and keyword search.
`clinicaltrials_get_study_results`	Extract outcomes, adverse events, participant flow, and baseline from completed studies. Optional summary mode reduces ~200KB payloads to ~5KB; `outcomeLimit` / `adverseEventLimit` cap full mode without leaving it.
`clinicaltrials_find_eligible`	Match patient demographics and conditions to eligible recruiting trials. Provide age, sex, conditions, and location to find studies with

... View full README on GitHub