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How to integrate Brevo MCP with OpenAI Agents SDK

Connect OpenAI Agents SDK to Brevo MCP. Send sms campaign to new subscribers, create or update an email template, and more using natural language, with authentication handled for you.

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Brevo is an all-in-one email and SMS marketing platform for transactional messaging, automation, and CRM. It helps businesses engage customers and streamline communications through powerful campaign tools.

62 Tools

Introduction

This guide walks you through connecting Brevo to the OpenAI Agents SDK using the Composio tool router. By the end, you'll have a working Brevo agent that can send transactional emails, create and send email and SMS campaigns, manage contacts and lists, and track deals through natural language commands.

This guide will help you understand how to give your OpenAI Agents SDK agent real control over a Brevo account through Composio's Brevo MCP server.

Before we dive in, let's take a quick look at the key ideas and tools involved.

For exact tool slugs and parameter tables, see the tool catalog in the Composio docs.

Also integrate Brevo with

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TL;DR

Here's what you'll learn:
  • Get and set up your OpenAI and Composio API keys
  • Install the necessary dependencies
  • Initialize Composio and create a Tool Router session for Brevo
  • Configure an AI agent that can use Brevo as a tool
  • Run a live chat session where you can ask the agent to perform Brevo operations

What is OpenAI Agents SDK?

The OpenAI Agents SDK is a lightweight framework for building AI agents that can use tools and maintain conversation state. It provides a simple interface for creating agents with hosted MCP tool support.

Key features include:

  • Hosted MCP Tools: Connect to external services through hosted MCP endpoints
  • SQLite Sessions: Persist conversation history across interactions
  • Simple API: Clean interface with Agent, Runner, and tool configuration
  • Streaming Support: Real-time response streaming for interactive applications

What is the Brevo MCP server, and what's possible with it?

The Brevo MCP server is an implementation of the Model Context Protocol that connects your AI agent and assistants like Claude, Cursor, etc directly to your Brevo account. It provides structured and secure access to your contacts, campaigns, templates, transactional email activity, SMS campaigns, and CRM records, so your agent can manage contacts, create campaigns, send emails, review messaging activity, and maintain company records on your behalf.

  • Contact and audience management: Have your agent create, update, delete, import, and review contacts, organize them into lists, and inspect configured contact attributes.
  • Email campaign creation and delivery: Direct your agent to create or update email campaigns, review campaign details, and send completed draft campaigns to their recipients.
  • Transactional email and templates: Let the agent create or update email templates, send or schedule transactional emails, and review transactional email events.
  • SMS campaign management: Instruct your agent to create SMS campaigns, review existing campaigns and their details, or delete campaigns that are no longer needed.
  • CRM and performance insights: Have your agent create, review, list, or delete companies, check contact campaign statistics, and inspect sender domains and their verification status.

What is the Composio tool router, and how does it fit here?

What is Composio SDK?

Composio's Composio SDK helps agents find the right tools for a task at runtime. You can plug in multiple toolkits (like Gmail, HubSpot, and GitHub), and the agent will identify the relevant app and action to complete multi-step workflows. This can reduce token usage and improve the reliability of tool calls. Read more here: Getting started with Composio SDK

The tool router generates a secure MCP URL that your agents can access to perform actions.

How the Composio SDK works

The Composio SDK follows a three-phase workflow:

  1. Discovery: Searches for tools matching your task and returns relevant toolkits with their details.
  2. Authentication: Checks for active connections. If missing, creates an auth config and returns a connection URL via Auth Link.
  3. Execution: Executes the action using the authenticated connection.

Step-by-step Guide

Step by step09 STEPS
1

Prerequisites

Before starting, make sure you have:
  • Composio API Key and OpenAI API Key
  • Primary know-how of OpenAI Agents SDK
  • A live Brevo project
  • Some knowledge of Python or Typescript
2

Getting API Keys for OpenAI and Composio

OpenAI API Key
  • Go to the OpenAI dashboard and create an API key. You'll need credits to use the models, or you can connect to another model provider.
  • Keep the API key safe.
Composio API Key
3

Install dependencies

npm install @composio/openai-agents @openai/agents dotenv

Install the Composio SDK and the OpenAI Agents SDK.

4

Set up environment variables

bash
OPENAI_API_KEY=sk-...your-api-key
COMPOSIO_API_KEY=your-api-key
USER_ID=composio_user@gmail.com

Create a .env file and add your OpenAI and Composio API keys.

5

Import dependencies

import 'dotenv/config';
import { Composio } from '@composio/core';
import { OpenAIAgentsProvider } from '@composio/openai-agents';
import { Agent, hostedMcpTool, run, OpenAIConversationsSession } from '@openai/agents';
import * as readline from 'readline';
What's happening:
  • You're importing all necessary libraries.
  • The Composio and OpenAIAgentsProvider classes are imported to connect your OpenAI agent to Composio tools like Brevo.
6

Set up the Composio instance

dotenv.config();

const composioApiKey = process.env.COMPOSIO_API_KEY;
const userId = process.env.USER_ID;

if (!composioApiKey) {
  throw new Error('COMPOSIO_API_KEY is not set. Create a .env file with COMPOSIO_API_KEY=your_key');
}
if (!userId) {
  throw new Error('USER_ID is not set');
}

// Initialize Composio
const composio = new Composio({
  apiKey: composioApiKey,
  provider: new OpenAIAgentsProvider(),
});
What's happening:
  • dotenv.config() loads your .env file so COMPOSIO_API_KEY and USER_ID are available as environment variables.
  • Creating a Composio instance using the API Key and OpenAIAgentsProvider class.
7

Create a Tool Router session

// Create Tool Router session for Brevo
const session = await composio.create(userId as string, {
  toolkits: ['brevo'],
});
const mcpUrl = session.mcp.url;

What is happening:

  • You give the Tool Router the user id and the toolkits you want available. Here, it is only brevo.
  • The router checks the user's Brevo connection and prepares the MCP endpoint.
  • The returned session.mcp.url is the MCP URL that your agent will use to access Brevo.
  • This approach keeps things lightweight and lets the agent request Brevo tools only when needed during the conversation.
8

Configure the agent

// Configure agent with MCP tool
const agent = new Agent({
  name: 'Assistant',
  model: 'gpt-5',
  instructions:
    'You are a helpful assistant that can access Brevo. Help users perform Brevo operations through natural language.',
  tools: [
    hostedMcpTool({
      serverLabel: 'tool_router',
      serverUrl: mcpUrl,
      headers: { 'x-api-key': composioApiKey },
      requireApproval: 'never',
    }),
  ],
});
What's happening:
  • We're creating an Agent instance with a name, model (gpt-5), and clear instructions about its purpose.
  • The agent's instructions tell it that it can access Brevo and help with queries, inserts, updates, authentication, and fetching database information.
  • The tools array includes a hostedMcpTool that connects to the MCP server URL we created earlier.
  • The headers object includes the Composio API key for secure authentication with the MCP server.
  • requireApproval: 'never' means the agent can execute Brevo operations without asking for permission each time, making interactions smoother.
9

Start chat loop and handle conversation

// Keep conversation state across turns
const conversationSession = new OpenAIConversationsSession();

// Simple CLI
const rl = readline.createInterface({
  input: process.stdin,
  output: process.stdout,
  prompt: 'You: ',
});

console.log('\nComposio Tool Router session created.');
console.log('\nChat started. Type your requests below.');
console.log("Commands: 'exit', 'quit', or 'q' to end\n");

try {
  const first = await run(agent, 'What can you help me with?', { session: conversationSession });
  console.log(`Assistant: ${first.finalOutput}\n`);
} catch (e) {
  console.error('Error:', e instanceof Error ? e.message : e, '\n');
}

rl.prompt();

rl.on('line', async (userInput) => {
  const text = userInput.trim();

  if (['exit', 'quit', 'q'].includes(text.toLowerCase())) {
    console.log('Goodbye!');
    rl.close();
    process.exit(0);
  }

  if (!text) {
    rl.prompt();
    return;
  }

  try {
    const result = await run(agent, text, { session: conversationSession });
    console.log(`\nAssistant: ${result.finalOutput}\n`);
  } catch (e) {
    console.error('Error:', e instanceof Error ? e.message : e, '\n');
  }

  rl.prompt();
});

rl.on('close', () => {
  console.log('\n👋 Session ended.');
  process.exit(0);
});
What's happening:
  • The program prints a session URL that you visit to authorize Brevo.
  • After authorization, the chat begins.
  • Each message you type is processed by the agent using run().
  • The responses are printed to the console.
  • Typing exit, quit, or q cleanly ends the chat.

Complete Code

Here's the complete code to get you started with Brevo and OpenAI Agents SDK:

import 'dotenv/config';
import { Composio } from '@composio/core';
import { OpenAIAgentsProvider } from '@composio/openai-agents';
import { Agent, hostedMcpTool, run, OpenAIConversationsSession } from '@openai/agents';
import * as readline from 'readline';

const composioApiKey = process.env.COMPOSIO_API_KEY;
const userId = process.env.USER_ID;

if (!composioApiKey) {
  throw new Error('COMPOSIO_API_KEY is not set. Create a .env file with COMPOSIO_API_KEY=your_key');
}
if (!userId) {
  throw new Error('USER_ID is not set');
}

// Initialize Composio
const composio = new Composio({
  apiKey: composioApiKey,
  provider: new OpenAIAgentsProvider(),
});

async function main() {
  // Create Tool Router session
  const session = await composio.create(userId as string, {
    toolkits: ['brevo'],
  });
  const mcpUrl = session.mcp.url;

  // Configure agent with MCP tool
  const agent = new Agent({
    name: 'Assistant',
    model: 'gpt-5',
    instructions:
      'You are a helpful assistant that can access Brevo. Help users perform Brevo operations through natural language.',
    tools: [
      hostedMcpTool({
        serverLabel: 'tool_router',
        serverUrl: mcpUrl,
        headers: { 'x-api-key': composioApiKey },
        requireApproval: 'never',
      }),
    ],
  });

  // Keep conversation state across turns
  const conversationSession = new OpenAIConversationsSession();

  // Simple CLI
  const rl = readline.createInterface({
    input: process.stdin,
    output: process.stdout,
    prompt: 'You: ',
  });

  console.log('\nComposio Tool Router session created.');
  console.log('\nChat started. Type your requests below.');
  console.log("Commands: 'exit', 'quit', or 'q' to end\n");

  try {
    const first = await run(agent, 'What can you help me with?', { session: conversationSession });
    console.log(`Assistant: ${first.finalOutput}\n`);
  } catch (e) {
    console.error('Error:', e instanceof Error ? e.message : e, '\n');
  }

  rl.prompt();

  rl.on('line', async (userInput) => {
    const text = userInput.trim();

    if (['exit', 'quit', 'q'].includes(text.toLowerCase())) {
      console.log('Goodbye!');
      rl.close();
      process.exit(0);
    }

    if (!text) {
      rl.prompt();
      return;
    }

    try {
      const result = await run(agent, text, { session: conversationSession });
      console.log(`\nAssistant: ${result.finalOutput}\n`);
    } catch (e) {
      console.error('Error:', e instanceof Error ? e.message : e, '\n');
    }

    rl.prompt();
  });

  rl.on('close', () => {
    console.log('\nSession ended.');
    process.exit(0);
  });
}

main().catch((err) => {
  console.error('Fatal error:', err);
  process.exit(1);
});

Conclusion

This was a starter code for integrating Brevo MCP with OpenAI Agents SDK to build a functional AI agent that can interact with Brevo.

Key features:

  • Hosted MCP tool integration through Composio's Tool Router
  • SQLite session persistence for conversation history
  • Simple async chat loop for interactive testing
You can extend this by adding more toolkits, implementing custom business logic, or building a web interface around the agent.
TOOLS

Supported Tools

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

Add Contacts to List

Add existing Brevo contacts to one list using one identifier family.

Create a company

Creates a new company record in your Brevo CRM.

Create Contact

Create a Brevo contact, or update a matching contact when explicitly enabled.

Create Contact Attribute

Create a Brevo contact attribute definition.

Create Contact List

Creates a new contact list (audience) in Brevo within a specified folder.

Create Deal

Create a Brevo CRM deal with optional attributes and associations.

Create Email Campaign

Create an email campaign as a draft, or schedule it when requested.

Create or Update Email Template

This tool creates a new email template or updates an existing one in Brevo.

Create Sender

Create a Brevo email sender identity and return DNS configuration warnings.

Create Sender Domain

Register a Brevo sender domain and return available DNS authentication records.

Create SMS Campaign

This tool allows you to create a new SMS campaign in Brevo.

Delete a company

Deletes a company from Brevo using its unique identifier.

Delete Contact

Deletes a contact from Brevo by email, contact ID, external ID, phone number, WhatsApp ID, or landline number.

Delete Contact List

Permanently delete a Brevo contact list without deleting its contacts.

Delete Email Campaign

Delete an unscheduled campaign and related template, builder, and schedule data.

Delete Email Template

This tool deletes an inactive email template from Brevo.

Delete SMS Campaign

This tool deletes an existing SMS campaign.

Export Email Campaign Recipients

Start an asynchronous CSV export of a sent email campaign's recipients.

Get Account Information

Retrieves comprehensive information about the authenticated Brevo account.

Get Aggregated Transactional Email Report

Return aggregate delivery and engagement totals for transactional emails.

Get all contacts

Retrieves a page of Brevo contacts, with filters for creation or modification dates, list IDs, or a segment ID.

Get all email templates

This tool retrieves a list of all email templates created in your Brevo account.

Get All Senders

This tool retrieves a list of all senders associated with the Brevo account.

Get Company Details

Retrieves detailed information about a specific company from Brevo's CRM.

Get Contact Campaign Stats

Retrieve a contact's email campaign statistics for a bounded date range.

Get Contact Details

This tool retrieves detailed information about a specific contact in Brevo.

Get Contact List

Get contact-list metadata and optional campaign statistics by list ID.

Get contact lists

Retrieve one page of Brevo contact lists, including list IDs and names and, when returned, subscriber counts and folder associations.

Get Email Campaign Details

Retrieve details for a specific email campaign, including available HTML content, recipients, and statistics.

Get Email Template

Retrieve one transactional email template by numeric or custom ID.

Get Process

Retrieve the status and available result details of a Brevo process.

Get SMS Campaign Details

Retrieves the details of a specific SMS campaign.

Get SMS Campaigns

List a page of Brevo SMS campaigns, with optional status and sent-date filtering, pagination, and creation-date sorting.

Get Transactional Email

Retrieve a sent transactional email by its identifier, including event history and personalized content when retained by Brevo.

Import Contacts

Submit a contact import to Brevo and return its background process ID.

List All Companies

This action retrieves a list of all companies stored in the Brevo CRM.

List Contact Attributes

List the contact attributes configured in the Brevo account.

List Contact Folders

List folders that organize contact lists in the connected Brevo account.

List Contact Lists in Folder

List one bounded page of contact lists belonging to a Brevo folder.

List Contact Segments

List one page of contact segments configured in the Brevo account.

List CRM Notes

List one page of Brevo CRM notes, optionally filtered by entity and date.

List CRM Pipelines

List every Brevo CRM deal pipeline with its stages and stage settings.

List Custom Object Records

List one page of records for an Enterprise-only Brevo custom object.

List Deals

List one page of Brevo CRM deals with optional relationship filters.

List Email Campaigns

List a page of Brevo email campaigns, with filters for type, status, and dates.

List Orders

List one page of Brevo ecommerce orders.

List Organization Users

List active and pending users in the connected Brevo organization.

List Processes

List a bounded page of Brevo background processes for status monitoring.

List Sender Domains

List sender domains and their authentication and verification status.

List Transactional Email Events

List one page of transactional email events with Brevo's complete filter set.

List Transactional Emails

List a page of sent transactional email records, filtered by recipient email, template ID, or message ID.

Remove Contacts from List

Remove selected contacts, or every contact, from one Brevo list.

Send Email Campaign Now

Request immediate sending of an existing draft email campaign to its recipients.

Send Email Campaign Test

Send a campaign test to explicit recipients or the account test list.

Send Transactional Email

Send or schedule one or many transactional emails through Brevo.

Send Transactional Template Test

Send a transactional template test to recipients or the account test list.

Update Contact

Update fields and list memberships for an existing Brevo contact.

Update Contact List

Rename an existing Brevo contact list, move it to a folder, or both.

Update Deal

Update a Brevo CRM deal's fields or complete association lists.

Update Email Campaign

Updates an email campaign in Brevo using its unique identifier.

Update Email Campaign Status

Apply a documented lifecycle status operation to an email campaign.

Upload Campaign Image

Upload an image from a public URL to Brevo's campaign image gallery.

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FAQ

Frequently asked questions

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