Mx toolbox MCP for AI Agents

Securely connect your AI agents and chatbots (Claude, ChatGPT, Cursor, etc) with Mx toolbox MCP or direct API to run DNS lookups, check domain blacklists, analyze email server health, and monitor network issues through natural language.

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Api Key

MxToolbox is a network diagnostic and monitoring service with advanced DNS, blacklist, and email health tools. It helps IT teams quickly troubleshoot and ensure reliable email and network performance.

13 Tools

Try Mx toolbox now

Type what you want done — sign in and watch it run live in the Tool Router playground.

TOOL ROUTER PLAYGROUND
Mx toolbox
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TOOLS

Supported Tools

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

Lookup BIMI Record

Retrieves BIMI (Brand Indicators for Message Identification) record and diagnostic information for a domain.

Lookup Blacklist

Tool to perform a blacklist check on a domain or IP.

Lookup DKIM Record

Tool to retrieve DKIM (DomainKeys Identified Mail) records for a domain.

Lookup DMARC Record

Retrieves DMARC (Domain-based Message Authentication, Reporting & Conformance) records for a domain and performs validation checks.

Lookup DNS Records

Performs comprehensive DNS health check and retrieves name server records for a domain.

HTTP Lookup

Tool to perform an HTTP test on a domain.

Lookup MTA-STS Record

Tool to lookup MTA-STS record for a domain.

Lookup MX Records

Retrieves MX (Mail Exchange) records for a domain.

Ping Lookup

Performs a ping test to check network connectivity and measure round-trip time to a domain or IP address.

SMTP Lookup

Tool to perform an SMTP connectivity test on a domain.

Lookup SPF Record

Tool to retrieve SPF records for a specified domain.

Monitor Status

Retrieves the current status of all monitors configured in the MX Toolbox account.

Check Usage

Retrieve API usage statistics for DNS and network lookups.

SETUP GUIDE

Connect Mx toolbox MCP Tool with your Agent

1

Install Composio

typescript
npm install @composio/core ai @ai-sdk/openai @ai-sdk/mcp
Install the Composio SDK and Claude Agent SDK
2

Create Tool Router Session

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

const composio = new Composio({ apiKey: 'your-api-key' });

console.log("Creating Tool Router session...");
const { mcp } = await composio.create('your-user-id');
console.log(`Tool Router session created: ${mcp.url}`);
Initialize the Composio client and create a Tool Router session
3

Connect to AI Agent

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

const client = await createMCPClient({
  transport: {
    type: 'http',
    url: mcp.url,
    headers: { 'x-api-key': 'your-composio-api-key' }
  }
});

const tools = await client.tools();

const { text } = await generateText({
  model: openai('gpt-4o'),
  tools,
  messages: [{ role: 'user', content: 'Check if example.com is blacklisted' }],
  stopWhen: stepCountIs( 5 )
});

console.log(`Agent: ${text}`);
Use the MCP server with your AI agent
SETUP GUIDE

Connect Mx toolbox API Tool with your Agent

1

Install Composio

typescript
npm install @composio/openai
Install the Composio SDK
2

Initialize Composio and Create Tool Router Session

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

const composio = new Composio({
  provider: new OpenAIResponsesProvider(),
});
const openai = new OpenAI({});
const session = await composio.create('your-user-id');
Import and initialize Composio client, then create a Tool Router session
3

Execute Mx toolbox Tools via Tool Router with Your Agent

typescript
const tools = session.tools;
const response = await openai.responses.create({
  model: 'gpt-4.1',
  tools: tools,
  input: [{
    role: 'user',
    content: 'Check if example.com is blacklisted on major DNSBLs'
  }],
});
const result = await composio.provider.handleToolCalls(
  'your-user-id',
  response.output
);
console.log(result);
Get tools from Tool Router session and execute Mx toolbox actions with your Agent

Why Use Composio?

AI Native Mx toolbox Integration

  • Supports both Mx toolbox MCP and direct API based integrations
  • Structured, LLM-friendly schemas for reliable tool execution
  • Rich coverage for DNS records, blacklist checks, email diagnostics, and more

Managed Auth

  • Built-in API key management for Mx toolbox
  • Central place to manage, scope, and revoke access
  • Per user and per environment credentials so you never share API keys

Agent Optimized Design

  • Tools are tuned using real error and success rates for better automation
  • Comprehensive execution logs so you always know what ran and when

Enterprise Grade Security

  • Fine-grained RBAC to control which agents and users can access Mx toolbox
  • Scoped, least privilege access to your Mx toolbox resources
  • Full audit trail for all agent-triggered diagnostic actions
FAQ

Frequently asked questions

Yes, Mx toolbox 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.

Composio is SOC 2 and ISO 27001 compliant with all data encrypted in transit and at rest. Learn more.

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

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