mcp-virustotal MCP Server: Complete Setup Guide

Last Updated: October 19, 2026

🤖 AI Snapshot / TL;DR: The mcp-virustotal is a production-ready, open-source Model Context Protocol (MCP) server that enables AI agents (like Claude Desktop, Cursor, and Claude Code) to securely interact with filesystem systems. It features local execution, standardized tool definitions, and is actively maintained with ⭐ 151 GitHub stars.

🔍 What is mcp-virustotal?

Mcp server for virustotal api — analyze urls, files, ips, and domains with comprehensive security reports, relationship analysis, and pagination support.. By bridging the gap between large language models and your local or remote filesystem environment, it allows you to automate complex workflows using natural language prompts. Instead of writing custom scripts, you can simply instruct your AI assistant to perform tasks directly through this standardized protocol.

✨ Key Features

• Cache first. get_url_report returns the cached virustotal report and only submits a scan on a cache miss.**
• Full relationship paging. 100+ relationship types across files, urls, ips and domains, with cursor pagination.**
• Two transports. stdio for desktop clients, http streaming for a shared service.**
• Tested. unit tests for the formatters and api layer run in ci on node 20, 22 and 24.**
• Tool arguments are validated with zod schemas before any request is built.

🎯 Real-World Use Cases for mcp-virustotal

• Workflow Automation: Connect your AI assistant directly to this tool to eliminate manual copy-pasting.
• Rapid Prototyping: Test API integrations or data flows in seconds using natural language prompts.
• Knowledge Retrieval: Instantly search and retrieve specific information without manually navigating the interface.

⚙️ Installation & Configuration

Prerequisites

• Node.js (v18+) or Python (v3.10+) installed locally.
• Claude Desktop, Cursor, or another MCP-compatible client.

Step 1: Install the Server

```bash

Recommended: Run directly via npx (no global install needed)

npx -y w0h1v/mcp-virustotal

Alternative: Clone and run locally

git clone https://github.com/w0h1v/mcp-virustotal.git cd mcp-virustotal npm install # or pip install -r requirements.txt ```

Step 2: Update Your MCP Config

Add the following to your claude_desktop_config.json (Mac: ~/Library/Application Support/Claude/, Windows: %APPDATA%\Claude\) or .cursor/mcp.json:

```json { "mcpServers": { "mcp-virustotal": { "command": "npx", "args": ["-y", "w0h1v/mcp-virustotal"] } } } ``` (Note: Restart your AI client after saving the configuration file.)

⚙️ Advanced Configuration Options

For production environments, you may need to customize the server behavior. You can pass environment variables in your MCP config:

```json { "mcpServers": { "mcp-virustotal": { "command": "npx", "args": ["-y", "w0h1v/mcp-virustotal"], "env": { "API_KEY": "your_api_key_here", "TIMEOUT_MS": "30000" } } } } ``` Note: Always use environment variables for sensitive credentials. Never hardcode API keys directly in the JSON.

💡 Real-World Example Prompts

Once connected, try these high-value prompts in Claude or Cursor:

1. "Use mcp-virustotal to extract structured data or automate a specific filesystem workflow."
2. "Configure the mcp-virustotal MCP server to optimize for speed and reliability."
3. "Analyze the output from mcp-virustotal and format it into a comprehensive Markdown report."

⚖️ How mcp-virustotal Compares to Alternatives

Feature	mcp-virustotal	Generic Alternatives	Manual Scripting
Setup Time	< 2 minutes (npx)	5-10 minutes	Hours
AI Native	✅ Yes, built for LLMs	⚠️ Requires custom prompts	❌ No
Maintenance	✅ Auto-updated via npx	⚠️ Manual dependency updates	❌ High maintenance
Best For	Fast AI automation	Custom edge cases	Highly specific needs

🛠️ Common Issues & Troubleshooting

• "MCP Server Failed to Start": Ensure you have Node.js (v18+) or Python (v3.10+) installed and added to your system's PATH.
• Rate Limiting / 429 Errors: If making rapid requests, the target API may block you. Add delays between prompts or configure proxy settings.
• Permission Denied: For local tools, ensure the MCP server has explicit read/write permissions granted in your configuration file.

🔄 Related MCP Servers

If you found this useful, explore these complementary tools:

• next-ai-draw-io MCP Server (⭐ 36,324)
• nightingale MCP Server (⭐ 13,369)

❓ Frequently Asked Questions (FAQ)

Q: Is mcp-virustotal free to use?
A: Yes, this is an open-source MCP server. However, the underlying service it connects to (if any) may require its own API key or subscription.

Q: Which AI clients support mcp-virustotal?
A: Any MCP-compliant client, including Claude Desktop, Cursor, Windsurf, Cline, and Claude Code.

Q: How do I update mcp-virustotal?
A: If installed via npx, it automatically fetches the latest version on each run. If cloned manually, run git pull in the repository directory.