# How to integrate Virustotal MCP with Claude Code ```json { "title": "How to integrate Virustotal MCP with Claude Code", "toolkit": "Virustotal", "toolkit_slug": "virustotal", "framework": "Claude Code", "framework_slug": "claude-code", "url": "https://composio.dev/toolkits/virustotal/framework/claude-code", "markdown_url": "https://composio.dev/toolkits/virustotal/framework/claude-code.md", "updated_at": "2026-05-12T10:29:51.341Z" } ``` ## Introduction Manage your Virustotal directly from Claude Code with zero worries about OAuth hassles, API-breaking issues, or reliability and security concerns. You can do this in two different ways: - Via [Composio Connect](https://dashboard.composio.dev/login?utm_source=toolkits&utm_medium=framework_template&utm_campaign=claude-code&utm_content=composio_connect&next=%2F~%2Forg%2Fconnect%2Fclients%2Fclaude-code) - Direct and easiest approach - Via [Composio SDK](https://docs.composio.dev/docs?utm_source=toolkits&utm_medium=framework_template&utm_campaign=claude-code&utm_content=composio_sdk) - Programmatic approach with more control ## Also integrate Virustotal with - [ChatGPT](https://composio.dev/toolkits/virustotal/framework/chatgpt) - [OpenAI Agents SDK](https://composio.dev/toolkits/virustotal/framework/open-ai-agents-sdk) - [Claude Agent SDK](https://composio.dev/toolkits/virustotal/framework/claude-agents-sdk) - [Claude Cowork](https://composio.dev/toolkits/virustotal/framework/claude-cowork) - [Codex](https://composio.dev/toolkits/virustotal/framework/codex) - [Cursor](https://composio.dev/toolkits/virustotal/framework/cursor) - [VS Code](https://composio.dev/toolkits/virustotal/framework/vscode) - [OpenCode](https://composio.dev/toolkits/virustotal/framework/opencode) - [OpenClaw](https://composio.dev/toolkits/virustotal/framework/openclaw) - [Hermes](https://composio.dev/toolkits/virustotal/framework/hermes-agent) - [CLI](https://composio.dev/toolkits/virustotal/framework/cli) - [Google ADK](https://composio.dev/toolkits/virustotal/framework/google-adk) - [LangChain](https://composio.dev/toolkits/virustotal/framework/langchain) - [Vercel AI SDK](https://composio.dev/toolkits/virustotal/framework/ai-sdk) - [Mastra AI](https://composio.dev/toolkits/virustotal/framework/mastra-ai) - [LlamaIndex](https://composio.dev/toolkits/virustotal/framework/llama-index) - [CrewAI](https://composio.dev/toolkits/virustotal/framework/crew-ai) ## TL;DR - Only one MCP URL to connect multiple apps with Claude Code with zero auth hassles. - Programmatic tool calling allows LLMs to write its code in a remote workbench to handle complex tool chaining. Reduces to-and-fro with LLMs for frequent tool calling. - Handling Large tool responses out of LLM context to minimize context rot. - Dynamic just-in-time access to 20,000 tools across 1000+ other Apps for cross-app workflows. It loads the tools you need, so LLMs aren't overwhelmed by tools you don't need. ## Connect Virustotal to Claude Code ### Connecting Virustotal to Claude Code using Composio 1. Add the Composio MCP to Claude ```bash claude mcp add --scope user --transport http composio https://connect.composio.dev/mcp ``` ## What is Claude Code? Claude Code is Anthropic's command line developer tool that lets you use Claude directly inside your terminal. Instead of switching between your editor, browser, and chat, you can stay in your project folder and ask Claude to help you build, debug, refactor, and understand code right where you're working. Key features include: - Terminal-Native Experience: Work with Claude directly in your command line without switching contexts - MCP Support: Built-in support for Model Context Protocol servers to extend Claude's capabilities - Project Context: Claude understands your project structure and can read, write, and modify files - Interactive Development: Ask questions, debug code, and get help in real-time while coding - Multi-Platform: Works on macOS, Linux, WSL, and Windows ## What is the Virustotal MCP server, and what's possible with it? The Virustotal MCP server is an implementation of the Model Context Protocol that connects your AI agent and assistants like Claude, Cursor, etc directly to your Virustotal account. It provides structured and secure access to malicious file, URL, domain, and IP analysis, so your agent can perform actions like scanning files, retrieving threat reports, investigating domains, and posting comments or verdicts on your behalf. - Comprehensive threat analysis retrieval: Instantly fetch detailed reports on files, URLs, domains, or IP addresses to understand their security reputation and scan results from dozens of antivirus engines. - Relationship and metadata insights: Have your agent explore related entities—such as domains linked to a file, or files associated with an IP address—along with receiving broad metadata about available VirusTotal operations. - Automated commenting and feedback: Use your agent to post contextual comments on any analyzed resource, making collaboration and documentation of findings much easier. - Community-driven voting: Submit harmless or malicious verdicts on files and URLs after reviewing analysis, helping to crowdsource threat intelligence and improve detection accuracy. - Latest user comment retrieval: Let your agent pull up the most recent comments on a file, URL, domain, or IP address to quickly access community feedback and insights. ## Supported Tools | Tool slug | Name | Description | |---|---|---| | `VIRUSTOTAL_ADD_COMMENT` | Add VirusTotal Comment | Tool to add a comment to a VirusTotal resource (file, URL, domain, or IP address). Use after analyzing a resource to leave contextual feedback. Provide exactly one identifier per call. | | `VIRUSTOTAL_ADD_VOTE` | Add Vote | Tool to add a vote (harmless/malicious) to a VirusTotal resource. Use after reviewing analysis results to submit your verdict. | | `VIRUSTOTAL_GET_ANALYSIS` | Get Analysis Report | Tool to retrieve the analysis report of a file or URL submission. Use after obtaining an analysis ID to fetch its detailed report. Analysis results may be incomplete immediately after submission; poll until the report status is 'completed' before treating results as final. | | `VIRUSTOTAL_GET_COMMENTS` | Get comments | Tool to retrieve the latest comments on a VirusTotal resource. Use when you need to review user-generated comments for a file, URL, domain, or IP after obtaining its identifier. | | `VIRUSTOTAL_GET_DOMAIN_RELATIONSHIPS` | Get Domain Relationships | Tool to retrieve relationship objects for a given domain. Use when you have a domain and need to explore its related entities. | | `VIRUSTOTAL_GET_DOMAIN_REPORT` | Get Domain Report | Tool to retrieve the analysis report of a domain. Use when you need detailed insight on a domain's reputation and analysis stats. No malicious signals on obscure or low-traffic domains may indicate limited analysis history rather than safety — treat sparse results as 'unknown', not 'safe'. Covers external OSINT only (reputation, malware, SSL posture); cannot analyze internal/private assets. | | `VIRUSTOTAL_GET_FILE_REPORT` | Get File Report | Tool to retrieve the analysis report of a file. Use when you have a file's hash and need detailed scan metadata. Recently submitted files may return partial results; retry after a short delay before treating the report as final. | | `VIRUSTOTAL_GET_IP_ADDRESS_RELATIONSHIPS` | Get IP Address Relationships | Tool to retrieve objects related to a specific IP address by relationship type. Use when you have an IP and need to explore connected files, URLs, or other entities. | | `VIRUSTOTAL_GET_IP_ADDRESS_REPORT` | Get IP Address Report | Tool to retrieve the analysis report of an IP address. Use when you need detailed insight on an IP's reputation, ASN, country, and analysis stats. Low or zero detections indicate unknown risk, not safety — treat sparse data accordingly. Provides external OSINT only; insufficient as standalone compliance evidence. | | `VIRUSTOTAL_GET_METADATA` | Get VirusTotal Metadata | Tool to retrieve VirusTotal metadata. Use when you need information about available privileges, relationships between resources (like files, domains, IPs, URLs), and supported antivirus engines. | | `VIRUSTOTAL_GET_URL_REPORT` | Get URL Report | Tool to retrieve the analysis report of a URL. Use when you have a URL identifier (base64-url without padding) and need detailed scan results, reputation, and metadata. Results may be incomplete immediately after submission; retry with short delays if scan engines are still processing before treating the report as final. | | `VIRUSTOTAL_GET_VOTES` | Get Votes | Tool to retrieve votes on files, URLs, domains, or IP addresses. Use when you need to view community votes for a given object. | | `VIRUSTOTAL_RESCAN_FILE` | Rescan File | Tool to re-analyze a previously submitted file. Use when you need updated analysis results after an initial scan. | | `VIRUSTOTAL_SCAN_URL` | Scan URL | Tool to submit a URL for scanning. Use when you have a URL and need to submit it to VirusTotal to obtain an analysis ID for later retrieval. The returned analysis ID is preliminary — scanning engines may not have finished. Poll VIRUSTOTAL_GET_URL_REPORT with the ID using short delays to retrieve complete results. | | `VIRUSTOTAL_SEARCH` | Search VirusTotal | Tool to search for objects in the VirusTotal database. Use when locating files, URLs, domains, IPs, or comments matching a query. Supports pagination with limit and cursor. | | `VIRUSTOTAL_UPLOAD_FILE` | Upload File | Tool to upload a file for scanning. Use when you have binary file content ready to submit for VirusTotal analysis. | ## Supported Triggers None listed. ## Creating MCP Server - Stand-alone vs Composio SDK The Virustotal MCP server is an implementation of the Model Context Protocol that connects Claude Code (and other AI assistants like Claude and Cursor) directly to your Virustotal account. It provides structured and secure access so Claude can perform Virustotal operations on your behalf. With Composio's managed implementation, you don't have to create your own developer app. For production, if you're building an end product, we recommend using your own credentials. The managed server helps you prototype fast and go from 0-1 faster. ## Step-by-step Guide ### 1. Prerequisites Before starting, make sure you have: - Claude Pro, Max, or API billing enabled Anthropic account - Composio API Key - A Virustotal account - Basic knowledge of Python or TypeScript ### 1. Install Claude Code To install Claude Code, use one of the following methods based on your operating system: ```bash # macOS, Linux, WSL curl -fsSL https://claude.ai/install.sh | bash # Windows PowerShell irm https://claude.ai/install.ps1 | iex # Windows CMD curl -fsSL https://claude.ai/install.cmd -o install.cmd && install.cmd && del install.cmd ``` ### 2. Set up Claude Code Open a terminal, go to your project folder, and start Claude Code: - Claude Code will open in your terminal - Follow the prompts to sign in with your Anthropic account - Complete the authentication flow - Once authenticated, you can start using Claude Code ```bash cd your-project-folder claude ``` ### 3. Set up environment variables Create a .env file in your project root with the following variables: - COMPOSIO_API_KEY authenticates with Composio (get it from [Composio dashboard](https://dashboard.composio.dev/login?utm_source=toolkits&utm_medium=framework_template&utm_campaign=claude-code&utm_content=api_key&next=%2F~%2Forg%2Fconnect%2Fclients%2Fclaude-code)) - USER_ID identifies the user for session management (use any unique identifier) ```bash COMPOSIO_API_KEY=your_composio_api_key_here USER_ID=your_user_id_here ``` ### 4. Install Composio library No description provided. ```python pip install composio-core python-dotenv ``` ```typescript npm install @composio/core dotenv ``` ### 5. Generate Composio MCP URL No description provided. ```python import os from composio import Composio from dotenv import load_dotenv load_dotenv() COMPOSIO_API_KEY = os.getenv("COMPOSIO_API_KEY") USER_ID = os.getenv("USER_ID") composio_client = Composio(api_key=COMPOSIO_API_KEY) composio_session = composio_client.create( user_id=USER_ID, toolkits=["virustotal"], ) COMPOSIO_MCP_URL = composio_session.mcp.url print(f"MCP URL: {COMPOSIO_MCP_URL}") print(f"\nUse this command to add to Claude Code:") print(f'claude mcp add --transport http virustotal-composio "{COMPOSIO_MCP_URL}" --headers "X-API-Key:{COMPOSIO_API_KEY}"') ``` ```typescript import 'dotenv/config'; import { Composio } from '@composio/core'; const { COMPOSIO_API_KEY, USER_ID } = process.env; if (!COMPOSIO_API_KEY || !USER_ID) { throw new Error('COMPOSIO_API_KEY and USER_ID required in .env'); } const composioClient = new Composio({ apiKey: COMPOSIO_API_KEY }); const composioSession = await composioClient.create(USER_ID, { toolkits: ['virustotal'], }); const composioMcpUrl = composioSession?.mcp.url; console.log(`MCP URL: ${composioMcpUrl}`); console.log(`\nUse this command to add to Claude Code:`); console.log(`claude mcp add --transport http virustotal-composio "${composioMcpUrl}" --headers "X-API-Key:${COMPOSIO_API_KEY}"`); ``` ### 6. Run the script and copy the MCP URL No description provided. ```python python generate_mcp_url.py ``` ```typescript node --loader ts-node/esm generate_mcp_url.ts # or if using tsx tsx generate_mcp_url.ts ``` ### 7. Add Virustotal MCP to Claude Code In your terminal, add the MCP server using the command from the previous step. The command format is: - claude mcp add registers a new MCP server with Claude Code - --transport http specifies that this is an HTTP-based MCP server - The server name (virustotal-composio) is how you'll reference it - The URL points to your Composio Tool Router session - --headers includes your Composio API key for authentication After running the command, close the current Claude Code session and start a new one for the changes to take effect. ```bash claude mcp add --transport http virustotal-composio "YOUR_MCP_URL_HERE" --headers "X-API-Key:YOUR_COMPOSIO_API_KEY" # Then restart Claude Code exit claude ``` ### 8. Verify the installation Check that your Virustotal MCP server is properly configured. - This command lists all MCP servers registered with Claude Code - You should see your virustotal-composio entry in the list - This confirms that Claude Code can now access Virustotal tools If everything is wired up, you should see your virustotal-composio entry listed: ```bash claude mcp list ``` ### 9. Authenticate Virustotal The first time you try to use Virustotal tools, you'll be prompted to authenticate. - Claude Code will detect that you need to authenticate with Virustotal - It will show you an authentication link - Open the link in your browser (or copy/paste it) - Complete the Virustotal authorization flow - Return to the terminal and start using Virustotal through Claude Code Once authenticated, you can ask Claude Code to perform Virustotal operations in natural language. For example: - "Scan this file hash for malware" - "Get analysis report for suspicious URL" - "Retrieve domain reputation details" ## Complete Code ```python import os from composio import Composio from dotenv import load_dotenv load_dotenv() COMPOSIO_API_KEY = os.getenv("COMPOSIO_API_KEY") USER_ID = os.getenv("USER_ID") composio_client = Composio(api_key=COMPOSIO_API_KEY) composio_session = composio_client.create( user_id=USER_ID, toolkits=["virustotal"], ) COMPOSIO_MCP_URL = composio_session.mcp.url print(f"MCP URL: {COMPOSIO_MCP_URL}") print(f"\nUse this command to add to Claude Code:") print(f'claude mcp add --transport http virustotal-composio "{COMPOSIO_MCP_URL}" --headers "X-API-Key:{COMPOSIO_API_KEY}"') ``` ```typescript import 'dotenv/config'; import { Composio } from '@composio/core'; const { COMPOSIO_API_KEY, USER_ID } = process.env; if (!COMPOSIO_API_KEY || !USER_ID) { throw new Error('COMPOSIO_API_KEY and USER_ID required in .env'); } const composioClient = new Composio({ apiKey: COMPOSIO_API_KEY }); const composioSession = await composioClient.create(USER_ID, { toolkits: ['virustotal'], }); const composioMcpUrl = composioSession?.mcp.url; console.log(`MCP URL: ${composioMcpUrl}`); console.log(`\nUse this command to add to Claude Code:`); console.log(`claude mcp add --transport http virustotal-composio "${composioMcpUrl}" --headers "X-API-Key:${COMPOSIO_API_KEY}"`); ``` ## Conclusion You've successfully integrated Virustotal with Claude Code using Composio's MCP server. Now you can interact with Virustotal directly from your terminal using natural language commands. Key features of this setup: - Terminal-native experience without switching contexts - Natural language commands for Virustotal operations - Secure authentication through Composio's managed MCP - Tool Router for dynamic tool discovery and execution Next steps: - Try asking Claude Code to perform various Virustotal operations - Add more toolkits to your Tool Router session for multi-app workflows - Integrate this setup into your development workflow for increased productivity You can extend this by adding more toolkits, implementing custom workflows, or building automation scripts that leverage Claude Code's capabilities. ## How to build Virustotal MCP Agent with another framework - [ChatGPT](https://composio.dev/toolkits/virustotal/framework/chatgpt) - [OpenAI Agents SDK](https://composio.dev/toolkits/virustotal/framework/open-ai-agents-sdk) - [Claude Agent SDK](https://composio.dev/toolkits/virustotal/framework/claude-agents-sdk) - [Claude Cowork](https://composio.dev/toolkits/virustotal/framework/claude-cowork) - [Codex](https://composio.dev/toolkits/virustotal/framework/codex) - [Cursor](https://composio.dev/toolkits/virustotal/framework/cursor) - [VS Code](https://composio.dev/toolkits/virustotal/framework/vscode) - [OpenCode](https://composio.dev/toolkits/virustotal/framework/opencode) - [OpenClaw](https://composio.dev/toolkits/virustotal/framework/openclaw) - [Hermes](https://composio.dev/toolkits/virustotal/framework/hermes-agent) - [CLI](https://composio.dev/toolkits/virustotal/framework/cli) - [Google ADK](https://composio.dev/toolkits/virustotal/framework/google-adk) - [LangChain](https://composio.dev/toolkits/virustotal/framework/langchain) - [Vercel AI SDK](https://composio.dev/toolkits/virustotal/framework/ai-sdk) - [Mastra AI](https://composio.dev/toolkits/virustotal/framework/mastra-ai) - [LlamaIndex](https://composio.dev/toolkits/virustotal/framework/llama-index) - [CrewAI](https://composio.dev/toolkits/virustotal/framework/crew-ai) ## Related Toolkits - [Excel](https://composio.dev/toolkits/excel) - Microsoft Excel is a robust spreadsheet application for organizing, analyzing, and visualizing data. It's the go-to tool for calculations, reporting, and flexible data management. - [21risk](https://composio.dev/toolkits/_21risk) - 21RISK is a web app built for easy checklist, audit, and compliance management. It streamlines risk processes so teams can focus on what matters. - [Abstract](https://composio.dev/toolkits/abstract) - Abstract provides a suite of APIs for automating data validation and enrichment tasks. It helps developers streamline workflows and ensure data quality with minimal effort. - [Addressfinder](https://composio.dev/toolkits/addressfinder) - Addressfinder is a data quality platform for verifying addresses, emails, and phone numbers. It helps you ensure accurate customer and contact data every time. - [Agenty](https://composio.dev/toolkits/agenty) - Agenty is a web scraping and automation platform for extracting data and automating browser tasks—no coding needed. It streamlines data collection, monitoring, and repetitive online actions. - [Ambee](https://composio.dev/toolkits/ambee) - Ambee is an environmental data platform providing real-time, hyperlocal APIs for air quality, weather, and pollen. Get precise environmental insights to power smarter decisions in your apps and workflows. - [Ambient weather](https://composio.dev/toolkits/ambient_weather) - Ambient Weather is a platform for personal weather stations with a robust API for accessing local, real-time, and historical weather data. Get detailed environmental insights directly from your own sensors for smarter apps and automations. - [Anonyflow](https://composio.dev/toolkits/anonyflow) - Anonyflow is a service for encryption-based data anonymization and secure data sharing. It helps organizations meet GDPR, CCPA, and HIPAA data privacy compliance requirements. - [Api ninjas](https://composio.dev/toolkits/api_ninjas) - Api ninjas offers 120+ public APIs spanning categories like weather, finance, sports, and more. Developers use it to supercharge apps with real-time data and actionable endpoints. - [Api sports](https://composio.dev/toolkits/api_sports) - Api sports is a comprehensive sports data platform covering 2,000+ competitions with live scores and 15+ years of stats. Instantly access up-to-date sports information for analysis, apps, or chatbots. - [Apify](https://composio.dev/toolkits/apify) - Apify is a cloud platform for building, deploying, and managing web scraping and automation tools called Actors. It lets you automate data extraction and workflow tasks at scale—no infrastructure headaches. - [Autom](https://composio.dev/toolkits/autom) - Autom is a lightning-fast search engine results data platform for Google, Bing, and Brave. Developers use it to access fresh, low-latency SERP data on demand. - [Beaconchain](https://composio.dev/toolkits/beaconchain) - Beaconchain is a real-time analytics platform for Ethereum 2.0's Beacon Chain. It provides detailed insights into validators, blocks, and overall network performance. - [Big data cloud](https://composio.dev/toolkits/big_data_cloud) - BigDataCloud provides APIs for geolocation, reverse geocoding, and address validation. Instantly access reliable location intelligence to enhance your applications and workflows. - [Bigpicture io](https://composio.dev/toolkits/bigpicture_io) - BigPicture.io offers APIs for accessing detailed company and profile data. Instantly enrich your applications with up-to-date insights on 20M+ businesses. - [Bitquery](https://composio.dev/toolkits/bitquery) - Bitquery is a blockchain data platform offering indexed, real-time, and historical data from 40+ blockchains via GraphQL APIs. Get unified, reliable access to complex on-chain data for analytics, trading, and research. - [Brightdata](https://composio.dev/toolkits/brightdata) - Brightdata is a leading web data platform offering advanced scraping, SERP APIs, and anti-bot tools. It lets you collect public web data at scale, bypassing blocks and friction. - [Builtwith](https://composio.dev/toolkits/builtwith) - BuiltWith is a web technology profiler that uncovers the technologies powering any website. Gain actionable insights into analytics, hosting, and content management stacks for smarter research and lead generation. - [Byteforms](https://composio.dev/toolkits/byteforms) - Byteforms is an all-in-one platform for creating forms, managing submissions, and integrating data. It streamlines workflows by centralizing form data collection and automation. - [Cabinpanda](https://composio.dev/toolkits/cabinpanda) - Cabinpanda is a data collection platform for building and managing online forms. It helps streamline how you gather, organize, and analyze responses. ## Frequently Asked Questions ### What are the differences in Tool Router MCP and Virustotal MCP? With a standalone Virustotal MCP server, the agents and LLMs can only access a fixed set of Virustotal tools tied to that server. However, with the Composio Tool Router, agents can dynamically load tools from Virustotal and many other apps based on the task at hand, all through a single MCP endpoint. ### Can I use Tool Router MCP with Claude Code? Yes, you can. Claude Code fully supports MCP integration. You get structured tool calling, message history handling, and model orchestration while Tool Router takes care of discovering and serving the right Virustotal tools. ### Can I manage the permissions and scopes for Virustotal while using Tool Router? Yes, absolutely. You can configure which Virustotal scopes and actions are allowed when connecting your account to Composio. You can also bring your own OAuth credentials or API configuration so you keep full control over what the agent can do. ### How safe is my data with Composio Tool Router? All sensitive data such as tokens, keys, and configuration is fully encrypted at rest and in transit. Composio is SOC 2 Type 2 compliant and follows strict security practices so your Virustotal data and credentials are handled as safely as possible. --- [See all toolkits](https://composio.dev/toolkits) · [Composio docs](https://docs.composio.dev/llms.txt)