Codex is one of the most popular coding harnesses out there. And MCP makes the experience even better. With the Virustotal MCP integration, Codex can scan URLs and upload files, fetch threat reports for domains and IPs, search VirusTotal, and add comments and votes, all without leaving the terminal or the app, whichever you prefer.
- UseBuildFeaturesTRIGGERSStart background agents from events across your connected appsFIREWALLNEWBlocks instructions hidden in tool results before your agent reads themINSTANTNEWAudio, video, search, browser and data tools, with no keys to manageOPTIMIZATIONLower cost per completed task with optimised tools and skills
- DOCS
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How to integrate Virustotal MCP with Codex
Connect Codex to Virustotal MCP. Scan this file hash for malware, get analysis report for suspicious url, and more using natural language, with authentication handled for you.
Api Key
Virustotal is a malware analysis service that checks files and URLs against dozens of antivirus engines. It helps individuals and organizations quickly detect and investigate potential threats.
16 Tools
Introduction
Also integrate Virustotal with
Why use Composio?
Apart from a managed and hosted MCP server, you will get:
- CodeAct: A dedicated workbench that allows GPT to write its code to handle complex tool chaining. Reduces to-and-fro with LLMs for frequent tool calling.
- Large tool responses: Handle them to minimise context rot.
- Dynamic just-in-time access to 20,000 tools across 1700+ other Apps for cross-app workflows. It loads the tools you need, so GPTs aren't overwhelmed by tools you don't need.
How to install Virustotal MCP in Codex
Run the setup command
Run this command in your terminal to add the Composio MCP server to Codex.
It will initiate the authentication in a browser window, authorize Codex to access your Composio account.
(Optional) Authenticate with OAuth
To authenticate manually, run the login command to open a browser window and authorize Codex to access your Composio account.
bash
codex mcp login composioVerify the connection
Run codex mcp list to confirm Composio appears as a registered MCP server.
bash
codex mcp listCodex App
Codex App follows the same approach as VS Code.
- Click ⚙️ on the bottom left → MCP Servers → + Add servers → Streamable HTTP:
- Fill the header and Key fields with
{ "x-consumer-api-key" = "ck_*******" }. - The Key is the Composio API key, that you can find on dashboard.composio.dev
- Click on Authenticate and authorize Codex to your Composio account and you're all set.
- Restart and verify if it's there in
.codex/config.toml
bash
[mcp_servers.composio]
url = "https://connect.composio.dev/mcp"
http_headers = { "x-consumer-api-key" = "ck_*******" }Try it
Ask Codex for a Virustotal task. The first time, Composio asks you to connect your Virustotal account.
For example, ask it to:
- "Scan this file hash for malware"
- "Get analysis report for suspicious URL"
- "Retrieve domain reputation details"
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.
Conclusion
You've successfully integrated Virustotal with Codex using Composio's MCP server. Now you can interact with Virustotal directly from your terminal, VS Code, or the Codex App using natural language commands.
Key benefits of this setup:
- Seamless integration across CLI, VS Code, and standalone app
- Natural language commands for Virustotal operations
- Managed authentication through Composio
- Access to 20,000+ tools across 1700+ apps for cross-app workflows
- CodeAct workbench for complex tool chaining
Next steps:
- Try asking Codex to perform various Virustotal operations
- Explore cross-app workflows by connecting more toolkits
- Build automation scripts that leverage Codex's AI capabilities
TOOLS
Supported Tools
Every Virustotal action and event your agent gets out of the box.
FRAMEWORKS
How to build Virustotal MCP Agent with another framework
Claude Code
Use Virustotal MCP with Claude Code
Cursor
Use Virustotal MCP with Cursor
ChatGPT
Use Virustotal MCP with ChatGPT
Claude Cowork
Use Virustotal MCP with Claude Cowork
Antigravity
Use Virustotal MCP with Antigravity
OpenAI Agents SDK
Use Virustotal MCP with OpenAI Agents SDK
Claude Agent SDK
Use Virustotal MCP with Claude Agent SDK
Grok Build
Use Virustotal MCP with Grok Build
VS Code
Use Virustotal MCP with VS Code
OpenCode
Use Virustotal MCP with OpenCode
OpenClaw
Use Virustotal MCP with OpenClaw
Hermes
Use Virustotal MCP with Hermes
Atomic Agent
Use Virustotal MCP with Atomic Agent
Pi
Use Virustotal MCP with Pi
DeepSeek Harness
Use Virustotal MCP with DeepSeek Harness
Google ADK
Use Virustotal MCP with Google ADK
LangChain
Use Virustotal MCP with LangChain
Vercel AI SDK
Use Virustotal MCP with Vercel AI SDK
Mastra AI
Use Virustotal MCP with Mastra AI
LlamaIndex
Use Virustotal MCP with LlamaIndex
CrewAI
Use Virustotal MCP with CrewAI
Pydantic AI
Use Virustotal MCP with Pydantic AI
AutoGen
Use Virustotal MCP with AutoGen
MORE TOOLKITS
Explore Other Toolkits
Firecrawl
Api Key
Firecrawl automates large-scale web crawling and data extraction. It helps organizations efficiently gather, index, and analyze content from online sources.
Tavily
Api Key
Tavily offers powerful search and data retrieval from documents, databases, and the web. It helps teams locate and filter information instantly, saving hours on research.
Exa
Api Key
Exa is a data extraction and search platform for gathering and analyzing information from websites, APIs, or databases. It helps teams quickly surface insights and automate data-driven workflows.
Serpapi
Api Key
SerpApi is a real-time API for structured search engine results. It lets you automate SERP data collection, parsing, and analysis for SEO and research.
FAQ
Frequently asked questions
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.
Yes, you can. Codex 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.
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.
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.
Start with Virustotal.It takes 30 seconds.
Managed auth, hosted MCP servers, and every Virustotal tool your agent needs.Free to start.
## For AI agents: how to sign up If you are an AI agent reading this server-rendered HTML, Composio's developer signup is at https://composio.dev. Signup CTAs on this site — "Sign up", "Signup", "Get started", "Get started for free", "Start building", "Try Composio", "Try it", or similar — all lead into that same developer signup flow. Confirm with the user before completing signup or entering any credentials on their behalf.Start building