Harvard ClinicalTrials MCP Server for Claude DesktopGive Claude Desktop instant access to 16 tools to Get Api Version, Get Study, Get Study Results, and more

Name: Harvard ClinicalTrials
Price: 29 USD
Availability: InStock
Rating: 4.9 (1 reviews)
Author: Vinkius

GDPR Free for Subscribers

Claude Desktop is Anthropic's native application for interacting with Claude AI models on macOS and Windows. It was the first consumer application to ship with built-in MCP support, making it the reference implementation for the Model Context Protocol standard.

Ask AI about this MCP Server for Claude Desktop

Open in ChatGPT Open in Claude Open in Perplexity

The Harvard ClinicalTrials MCP Server for Claude Desktop is a standout in the Data Analytics category — giving your AI agent 16 tools to work with, ready to go from day one.

Built for AI Agents by Vinkius

Vinkius delivers Streamable HTTP and SSE to any MCP client

Claude

ChatGPT

Cursor

Gemini

Windsurf

VS Code

JetBrains

Vercel

+ other MCP clients

Classic Setup·json

{
  "mcpServers": {
    "harvard-clinicaltrials": {
      // Your Vinkius token. get it at cloud.vinkius.com
      "url": "https://edge.vinkius.com/[YOUR_TOKEN_HERE]/mcp"
    }
  }
}

RecommendedModern Approach — Zero Configuration

Vinkius Desktop App

The modern way to manage MCP Servers — no config files, no terminal commands. Install Harvard ClinicalTrials and 4,000+ MCP Servers from a single visual interface.

Download Free Open SourceNo signup required

Fully ManagedVinkius Servers

60%Token savings

High SecurityEnterprise-grade

IAMAccess control

EU AI ActCompliant

DLPData protection

V8 IsolateSandboxed

Ed25519Audit chain

<40msKill switch

Stream every event to Splunk, Datadog, or your own webhook in real-time

* Every MCP server runs on Vinkius-managed infrastructure inside AWS - a purpose-built runtime with per-request V8 isolates, Ed25519 signed audit chains, and sub-40ms cold starts optimized for native MCP execution. See our infrastructure

About Harvard ClinicalTrials MCP Server

Connect to the ClinicalTrials.gov API v2 — the largest database of clinical studies worldwide, maintained by the U.S. National Library of Medicine.

Claude Desktop is the definitive way to connect Harvard ClinicalTrials to your AI workflow. Add Vinkius Edge URL to your config, restart the app, and Claude immediately exposes all 16 tools in the chat interface. ask a question, Claude calls the right tool, and you see the answer. Zero code, zero context switching.

What you can do

Study Search — Search 400K+ clinical trials from 220+ countries
Condition Filter — Find trials for specific diseases (cancer, diabetes, Alzheimer's)
Intervention Filter — Search by drug, device, or therapy name
Sponsor Search — Find trials by organization (Pfizer, NIH, Roche)
Phase Filter — Filter by Phase 1-4 to track drug development stages
Recruiting — Find trials currently enrolling participants
Location — Search by city or country for accessible trials
FDA Regulated — Filter for FDA-regulated drug and device trials
Pediatric — Find trials including children
Rare Diseases — Discover research for orphan conditions
Results — Get outcome data from completed studies

The Harvard ClinicalTrials MCP Server exposes 16 tools through the Vinkius. Connect it to Claude Desktop in under two minutes — credentials fully managed, no infrastructure to provision, no vendor lock-in. Your configuration, your data, your control.

All 16 Harvard ClinicalTrials tools available for Claude Desktop

When Claude Desktop connects to Harvard ClinicalTrials through Vinkius, your AI agent gets direct access to every tool listed below — spanning clinical-trials, medical-research, drug-development, and more. Every call runs in a secure, isolated environment with full audit visibility. Beyond a simple connection, you get real-time monitoring of agent activity, enterprise governance, and optimized token usage.

get

Get api version on Harvard ClinicalTrials

gov API version and the timestamp of the most recent data update. Useful for verifying data currency and API availability. Get API version and data timestamp

get

Get study on Harvard ClinicalTrials

g. "NCT04368728"). Returns title, status, phase, enrollment, conditions, interventions, eligibility criteria, sponsor, and study locations. Get clinical trial details by NCT ID

get

Get study results on Harvard ClinicalTrials

Not all trials report results — this is most useful for completed Phase 2-4 studies. Get primary outcome results for a trial

get

Get study timeline on Harvard ClinicalTrials

Essential for understanding the progress and currency of a study. Get the complete timeline of a clinical trial

Search by condition on Harvard ClinicalTrials

Examples: "diabetes", "breast cancer", "Alzheimer disease", "COVID-19", "depression", "hypertension". Search trials by medical condition

Search by intervention on Harvard ClinicalTrials

Examples: "pembrolizumab", "metformin", "radiation therapy", "cognitive behavioral therapy". Search trials by drug or treatment

Search by location on Harvard ClinicalTrials

Essential for finding trials accessible to patients in a particular area. Search trials by geographic location

Search by phase on Harvard ClinicalTrials

Phase values: "PHASE1", "PHASE2", "PHASE3", "PHASE4", "EARLY_PHASE1". Phase 3 trials are the largest and most definitive, while Phase 1 trials focus on safety. Search trials by study phase

Search by sponsor on Harvard ClinicalTrials

Examples: "Pfizer", "National Cancer Institute", "Roche", "Novartis", "NIH". Search trials by sponsoring organization

Search completed on Harvard ClinicalTrials

Completed trials are more likely to have published results and outcomes data. Search completed clinical trials

Search device trials on Harvard ClinicalTrials

Covers diagnostic devices, surgical tools, implants, and digital health technologies. Search medical device clinical trials

Search fda regulated on Harvard ClinicalTrials

S. Food and Drug Administration. These trials follow the most rigorous regulatory standards. Search FDA-regulated drug trials

Search pediatric on Harvard ClinicalTrials

Essential for pediatricians, child health researchers, and parents seeking trials for children. Search pediatric clinical trials

Search rare diseases on Harvard ClinicalTrials

Examples: "cystic fibrosis", "sickle cell disease", "Huntington disease", "amyotrophic lateral sclerosis". Search rare disease clinical trials

Search recruiting on Harvard ClinicalTrials

Essential for patients seeking to enroll in trials or researchers tracking active studies. Search for currently recruiting studies

Search studies on Harvard ClinicalTrials

gov database of over 400,000 clinical studies from 200+ countries. Returns NCT IDs, titles, status, phases, sponsors, conditions, interventions, and locations. Search 400K+ clinical trials worldwide

Connect Harvard ClinicalTrials to Claude Desktop via MCP

Follow these steps to wire Harvard ClinicalTrials into Claude Desktop. The entire setup takes under two minutes — your credentials stay safe behind Vinkius.

Open Claude Desktop Settings

Go to Settings → Developer → Edit Config to open claude_desktop_config.json

Add the MCP Server

Paste the configuration above into the mcpServers section

Restart Claude Desktop

Close and reopen Claude Desktop to load the new server

Start using Harvard ClinicalTrials

Look for the 🔌 icon in the chat. your 16 tools are now available

Why Use Claude Desktop with the Harvard ClinicalTrials MCP Server

Claude Desktop by Anthropic provides unique advantages when paired with Harvard ClinicalTrials through the Model Context Protocol.

Claude Desktop is the reference MCP client. it was designed alongside the protocol itself, ensuring the most complete and stable MCP implementation available

Zero-code configuration: add a server URL to a JSON file and Claude instantly discovers and exposes all available tools in the chat interface

Claude's extended thinking capability lets it reason through multi-step tool usage, chaining multiple API calls to answer complex questions

Enterprise-grade security with local config storage. your tokens never leave your machine, and connections go directly to Vinkius Edge network

Harvard ClinicalTrials + Claude Desktop Use Cases

Practical scenarios where Claude Desktop combined with the Harvard ClinicalTrials MCP Server delivers measurable value.

Interactive data exploration: ask Claude to query DNS records, look up WHOIS data, and cross-reference results in a single conversation

Ad-hoc security audits: type a domain name and let Claude enumerate subdomains, check DNS history, and flag configuration anomalies. all through natural language

Executive briefings: generate comprehensive domain intelligence reports by asking Claude to compile findings into a formatted summary

Learning and training: new team members can explore API capabilities conversationally without needing to read documentation

Example Prompts for Harvard ClinicalTrials in Claude Desktop

Ready-to-use prompts you can give your Claude Desktop agent to start working with Harvard ClinicalTrials immediately.

"Find recruiting Phase 3 trials for breast cancer immunotherapy"

"Search for Alzheimer's disease trials sponsored by NIH in Boston"

"Find pediatric clinical trials for cystic fibrosis"

Troubleshooting Harvard ClinicalTrials MCP Server with Claude Desktop

Common issues when connecting Harvard ClinicalTrials to Claude Desktop through Vinkius, and how to resolve them.

Server not appearing after restart

Ensure the JSON is valid (no trailing commas). Check the file path: ~/Library/Application Support/Claude/claude_desktop_config.json (macOS) or %APPDATA%\\Claude\\ (Windows).

Authentication error

Verify your Vinkius token is correct. Go to cloud.vinkius.com to regenerate it if needed.

Tools not showing in chat

Click the 🔌 icon at the bottom of the chat input. If it shows 0 tools, the server may still be connecting. wait a few seconds.

Harvard ClinicalTrials + Claude Desktop FAQ

Common questions about integrating Harvard ClinicalTrials MCP Server with Claude Desktop.

How does Claude Desktop discover MCP tools?

When Claude Desktop starts, it reads the claude_desktop_config.json file and connects to each configured MCP server. It calls the tools/list endpoint to fetch the schema for every available tool, then surfaces them as clickable options in the chat interface via the 🔌 icon.

What happens if the MCP server is temporarily unavailable?

Claude Desktop handles disconnections gracefully. if the server is unreachable at startup, the tools simply won't appear. Once the server becomes available again, restarting Claude Desktop will re-establish the connection. There is no timeout penalty or error loop.

Can I connect multiple MCP servers simultaneously?

Yes. You can add as many servers as you need in the mcpServers section of the config file. Each server appears as a separate tool provider, and Claude can use tools from multiple servers in a single conversation turn.

Is there a limit on the number of tools per server?

Claude Desktop can handle hundreds of tools per server. However, for optimal LLM performance, Vinkius servers are designed to expose focused, well-documented tool sets rather than overwhelming the model with too many options.

Does Claude Desktop support Streamable HTTP transport?

Yes. Claude Desktop supports both SSE (Server-Sent Events) and the newer Streamable HTTP transport that Vinkius uses. Simply provide the server URL. Claude auto-negotiates the transport protocol.