Virustotal MCP server for AI agents and assistants

Securely connect your AI agents and chatbots (Claude, ChatGPT, Cursor, etc) with Virustotal MCP or direct API to scan files or URLs, retrieve threat reports, analyze suspicious indicators, and automate security workflows through natural language.

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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

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TOOLS

Supported Tools

Every Virustotal action and event your agent gets out of the box.

Add VirusTotal Comment

Tool to add a comment to a VirusTotal resource (file, URL, domain, or IP address).

Add Vote

Tool to add a vote (harmless/malicious) to a VirusTotal resource.

Get Analysis Report

Tool to retrieve the analysis report of a file or URL submission.

Get comments

Tool to retrieve the latest comments on a VirusTotal resource.

Get Domain Relationships

Tool to retrieve relationship objects for a given domain.

Get Domain Report

Tool to retrieve the analysis report of a domain.

Get File Report

Tool to retrieve the analysis report of a file.

Get IP Address Relationships

Tool to retrieve objects related to a specific IP address by relationship type.

Get IP Address Report

Tool to retrieve the analysis report of an IP address.

Get VirusTotal Metadata

Tool to retrieve VirusTotal metadata.

Get URL Report

Tool to retrieve the analysis report of a URL.

Get Votes

Tool to retrieve votes on files, URLs, domains, or IP addresses.

Rescan File

Tool to re-analyze a previously submitted file.

Scan URL

Tool to submit a URL for scanning.

Search VirusTotal

Tool to search for objects in the VirusTotal database.

Upload File

Tool to upload a file for scanning.

SETUP GUIDE

Connect Virustotal MCP Tool with your Agent

1

Install Composio

typescript
npm install @composio/core ai @ai-sdk/mcp @ai-sdk/openai
Install the Composio SDK and your agent framework
2

Create a session with MCP enabled

typescript
import { Composio } from "@composio/core";

const composio = new Composio();
const { mcp } = await composio.create("your-user-id", {
  toolkits: ["virustotal"],
  mcp: true,
});
Create a session scoped to Virustotal and read its MCP URL and headers
3

Connect your agent to the MCP server

typescript
import { createMCPClient } from "@ai-sdk/mcp";
import { openai } from "@ai-sdk/openai";
import { generateText, stepCountIs } from "ai";

const client = await createMCPClient({
  transport: { type: "http", url: mcp.url, headers: mcp.headers },
});

const { text } = await generateText({
  model: openai("gpt-5.6-sol"),
  tools: await client.tools(),
  prompt: "Scan this suspicious file hash for threats",
  stopWhen: stepCountIs(10),
});

console.log(text);
await client.close();
Pass the session's MCP URL and headers to your agent and run a Virustotal request
SETUP GUIDE

Connect Virustotal API Tool with your Agent

1

Install Composio

typescript
npm install @composio/core @composio/openai openai
Install the Composio SDK, the OpenAI provider, and the OpenAI SDK
2

Create a Composio session

typescript
import OpenAI from "openai";
import { Composio } from "@composio/core";
import { OpenAIResponsesProvider } from "@composio/openai";

const composio = new Composio({ provider: new OpenAIResponsesProvider() });
const client = new OpenAI();

const session = await composio.create("your-user-id", { toolkits: ["virustotal"] });
const tools = await session.tools();
Initialize Composio with the OpenAI Responses provider and create a session scoped to Virustotal
3

Run Virustotal tools with your agent

typescript
let response = await client.responses.create({
  model: "gpt-5.6-sol",
  tools,
  input: [{ role: "user", content: "Scan this suspicious file hash for threats" }],
});

while (response.output.some((o) => o.type === "function_call")) {
  const outputs = await composio.provider.handleToolCalls(session, response.output);
  response = await client.responses.create({
    model: "gpt-5.6-sol",
    tools,
    previous_response_id: response.id,
    input: outputs,
  });
}

console.log(response.output_text);
Send a request, execute the Virustotal tool calls through the session, and print the final answer

Why Use Composio?

AI Native Virustotal Integration

  • Supports both Virustotal MCP and direct API based integrations
  • Structured, LLM-friendly schemas for reliable tool execution
  • Rich coverage for submitting, scanning, and querying files, URLs, and reports

Managed Auth

  • Built-in API key management, securely handled by Composio
  • Central place to manage, scope, and revoke Virustotal access
  • Per user and per environment credentials instead of hard-coded keys

Agent Optimized Design

  • Tools are tuned using real error and success rates to improve reliability over time
  • Comprehensive execution logs so you always know what ran, when, and on whose behalf

Enterprise Grade Security

  • Fine-grained RBAC so you control which agents and users can access Virustotal
  • Scoped, least privilege access to Virustotal resources
  • Full audit trail of agent actions to support review and compliance

Rolling this out across your team?

Give your team centralized access control across every framework with Composio’s MCP Gateway.

EXPLORE MCP GATEWAY
FAQ

Frequently asked questions

Yes, Virustotal requires you to configure your own API key credentials. Once set up, Composio handles secure credential storage and API request handling for you.

Yes! Composio's Tool Router enables agents to use multiple toolkits. Learn more.

Yes. Composio is SOC 2 Type II compliant and is built to keep your Virustotal connection and credentials secure. OAuth tokens and API keys are encrypted, and sensitive customer data is protected at rest and in transit.

Composio also undergoes independent security testing and continuously monitors its systems for security threats. You can review the latest reports and policies in the Composio Trust Center.

Composio maintains and updates all toolkit integrations automatically, so your agents always work with the latest API versions.

Create the key in your Virustotal account settings, then paste it once on Composio's connection page. Composio stores it encrypted and uses it only for the Virustotal actions your agent runs. Nobody else in your workspace can read it, and you can revoke it inside Virustotal at any time.

When you connect a Virustotal account through Composio, every action runs under that account, so anything the agent creates, sends, or changes shows up in Virustotal as done by you. Keep an approval step in your prompt for actions with side effects, such as sending or deleting, and have the agent draft first.

Whatever the credentials you connect allow inside Virustotal. If Virustotal lets you scope a key to specific permissions, create a scoped one so the agent can only do what you intend. You can revoke the key inside Virustotal at any time.

Yes. Composio supports multiple connected accounts for the same app, and that works in Claude, ChatGPT, or any other assistant you connect through Composio. Give each Virustotal connection a name such as work or personal, and the assistant uses the one you mention in the request. Each account keeps its own credentials and nothing is merged.

The connection stops working the moment Virustotal rejects the old key. Create a new key in Virustotal and reconnect the account from the Composio dashboard or by asking your agent to reconnect Virustotal. Nothing else changes.

Composio's free Hobby plan includes 100,000 tool calls per month with no credit card, which covers most personal Virustotal use. Paid plans add higher limits and team features. Your Virustotal plan and its API limits still apply as usual.

Built-in connectors usually give one AI access to a limited set of apps. Many people use Composio because it lets their AI connect to more apps than it normally supports, or connect to multiple accounts for the same app (e.g. connect Claude to multiple Virustotal accounts).

With Composio, you connect Virustotal once and then use it across different AI assistants without setting it up separately in each one. Connect your apps to Composio once, then connect Composio to whichever AI you use, whether that's Claude, ChatGPT, Hermes, or your own custom assistant.

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