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How to integrate Doppler marketing automation MCP with Mastra AI

Connect Mastra AI to Doppler marketing automation MCP. Add new leads to your newsletter list, import conference attendees into vip subscribers list, and more using natural language, with authentication handled for you.

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Doppler marketing automation

Api Key

Doppler marketing automation is a platform for creating, sending, and tracking email campaigns. It helps you automate marketing workflows and manage subscriber lists for better engagement.

38 Tools

Managed auth

Connect Doppler marketing automation without auth hassles

We manage OAuth, API keys, token refresh, and scopes — you just build.

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Introduction

This guide walks you through connecting Doppler marketing automation to Mastra AI using the Composio tool router. By the end, you'll have a working Doppler marketing automation agent that can add and import subscribers, manage lists, review campaigns and recipients, list automations, and handle unsubscribes through natural language commands.

This guide will help you understand how to give your Mastra AI agent real control over a Doppler marketing automation account through Composio's Doppler marketing automation 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 Doppler marketing automation with

Claude Code Claude Cowork OpenAI Agents SDK Claude Agent SDK Codex OpenClaw Hermes Atomic Agent Google ADK LangChain Vercel AI SDK LlamaIndex CrewAI Pydantic AI AutoGen

TL;DR

Here's what you'll learn:

Set up your environment so Mastra, OpenAI, and Composio work together
Create a Tool Router session in Composio that exposes Doppler marketing automation tools
Connect Mastra's MCP client to the Composio generated MCP URL
Fetch Doppler marketing automation tool definitions and attach them as a toolset
Build a Mastra agent that can reason, call tools, and return structured results
Run an interactive CLI where you can chat with your Doppler marketing automation agent

What is Mastra AI?

Mastra AI is a TypeScript framework for building AI agents with tool support. It provides a clean API for creating agents that can use external services through MCP.

Key features include:

MCP Client: Built-in support for Model Context Protocol servers
Toolsets: Organize tools into logical groups
Step Callbacks: Monitor and debug agent execution
OpenAI Integration: Works with OpenAI models via @ai-sdk/openai

What is the Doppler marketing automation MCP server, and what's possible with it?

The Doppler marketing automation MCP server is an implementation of the Model Context Protocol that connects your AI agent and assistants like Claude, Cursor, etc directly to your Doppler marketing automation account. It provides structured and secure access to your campaigns, subscriber lists, and analytics, so your agent can create and manage lists, add or import subscribers, review campaign data, and analyze subscriber engagement on your behalf.

Subscriber management and segmentation: Effortlessly add new subscribers, import contacts in bulk, and organize them into targeted lists for personalized outreach.
Campaign insights and reporting: Retrieve detailed information about your email campaigns, monitor their status, and analyze performance metrics directly through your agent.
List creation and maintenance: Create new subscriber lists, fetch existing lists, and clean up outdated lists to keep your database organized and effective.
Individual and bulk subscriber lookup: Instantly fetch details for specific subscribers or get comprehensive overviews of all subscribers within a list for data-driven decisions.
Unsubscribe and audit tracking: Easily track and audit removed subscribers to understand churn and maintain compliance with email best practices.

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:

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

Step-by-step Guide

Step by step09 STEPS

Prerequisites

Before starting, make sure you have:

Node.js 18 or higher
A Composio account with an active API key
An OpenAI API key
Basic familiarity with TypeScript

Getting API Keys for OpenAI and Composio

OpenAI API Key

Go to the OpenAI dashboard and create an API key.
You need credits or a connected billing setup to use the models.
Store the key somewhere safe.

Composio API Key

Log in to the Composio dashboard.
Go to Settings and copy your API key.
This key lets your Mastra agent talk to Composio and reach Doppler marketing automation through MCP.

Install dependencies

bash

npm install @composio/core @mastra/core @mastra/mcp @ai-sdk/openai dotenv

Install the required packages.

What's happening:

@composio/core is the Composio SDK for creating MCP sessions
@mastra/core provides the Agent class
@mastra/mcp is Mastra's MCP client
@ai-sdk/openai is the model wrapper for OpenAI
dotenv loads environment variables from .env

Set up environment variables

bash

COMPOSIO_API_KEY=your_composio_api_key_here
COMPOSIO_USER_ID=your_user_id_here
OPENAI_API_KEY=your_openai_api_key_here

Create a .env file in your project root.

What's happening:

COMPOSIO_API_KEY authenticates your requests to Composio
COMPOSIO_USER_ID tells Composio which user this session belongs to
OPENAI_API_KEY lets the Mastra agent call OpenAI models

Import libraries and validate environment

typescript

import "dotenv/config";
import { openai } from "@ai-sdk/openai";
import { Agent } from "@mastra/core/agent";
import { MCPClient } from "@mastra/mcp";
import { Composio } from "@composio/core";
import * as readline from "readline";

import type { AiMessageType } from "@mastra/core/agent";

const openaiAPIKey = process.env.OPENAI_API_KEY;
const composioAPIKey = process.env.COMPOSIO_API_KEY;
const composioUserID = process.env.COMPOSIO_USER_ID;

if (!openaiAPIKey) throw new Error("OPENAI_API_KEY is not set");
if (!composioAPIKey) throw new Error("COMPOSIO_API_KEY is not set");
if (!composioUserID) throw new Error("COMPOSIO_USER_ID is not set");

const composio = new Composio({
  apiKey: composioAPIKey as string,
});

What's happening:

dotenv/config auto loads your .env so process.env.* is available
openai gives you a Mastra compatible model wrapper
Agent is the Mastra agent that will call tools and produce answers
MCPClient connects Mastra to your Composio MCP server
Composio is used to create a Tool Router session

Create a Tool Router session for Doppler marketing automation

typescript

async function main() {
  const session = await composio.create(
    composioUserID as string,
    {
      toolkits: ["doppler_marketing_automation"],
    },
  );

  const composioMCPUrl = session.mcp.url;
  console.log("Doppler marketing automation MCP URL:", composioMCPUrl);

What's happening:

create spins up a short-lived MCP HTTP endpoint for this user
The toolkits array contains "doppler_marketing_automation" for Doppler marketing automation access
session.mcp.url is the MCP URL that Mastra's MCPClient will connect to

Configure Mastra MCP client and fetch tools

typescript

const mcpClient = new MCPClient({
    id: composioUserID as string,
    servers: {
      nasdaq: {
        url: new URL(composioMCPUrl),
        requestInit: {
          headers: session.mcp.headers,
        },
      },
    },
    timeout: 30_000,
  });

console.log("Fetching MCP tools from Composio...");
const composioTools = await mcpClient.getTools();
console.log("Number of tools:", Object.keys(composioTools).length);

What's happening:

MCPClient takes an id for this client and a list of MCP servers
The headers property includes the x-api-key for authentication
getTools fetches the tool definitions exposed by the Doppler marketing automation toolkit

Create the Mastra agent

typescript

const agent = new Agent({
    name: "doppler_marketing_automation-mastra-agent",
    instructions: "You are an AI agent with Doppler marketing automation tools via Composio.",
    model: "openai/gpt-5",
  });

What's happening:

Agent is the core Mastra agent
name is just an identifier for logging and debugging
instructions guide the agent to use tools instead of only answering in natural language
model uses openai("gpt-5") to configure the underlying LLM

Set up interactive chat interface

typescript

let messages: AiMessageType[] = [];

console.log("Chat started! Type 'exit' or 'quit' to end.\n");

const rl = readline.createInterface({
  input: process.stdin,
  output: process.stdout,
  prompt: "> ",
});

rl.prompt();

rl.on("line", async (userInput: string) => {
  const trimmedInput = userInput.trim();

  if (["exit", "quit", "bye"].includes(trimmedInput.toLowerCase())) {
    console.log("\nGoodbye!");
    rl.close();
    process.exit(0);
  }

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

  messages.push({
    id: crypto.randomUUID(),
    role: "user",
    content: trimmedInput,
  });

  console.log("\nAgent is thinking...\n");

  try {
    const response = await agent.generate(messages, {
      toolsets: {
        doppler_marketing_automation: composioTools,
      },
      maxSteps: 8,
    });

    const { text } = response;

    if (text && text.trim().length > 0) {
      console.log(`Agent: ${text}\n`);
        messages.push({
          id: crypto.randomUUID(),
          role: "assistant",
          content: text,
        });
      }
    } catch (error) {
      console.error("\nError:", error);
    }

    rl.prompt();
  });

  rl.on("close", async () => {
    console.log("\nSession ended.");
    await mcpClient.disconnect();
    process.exit(0);
  });
}

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

What's happening:

messages keeps the full conversation history in Mastra's expected format
agent.generate runs the agent with conversation history and Doppler marketing automation toolsets
maxSteps limits how many tool calls the agent can take in a single run
onStepFinish is a hook that prints intermediate steps for debugging

Complete Code

Here's the complete code to get you started with Doppler marketing automation and Mastra AI:

typescript

import "dotenv/config";
import { openai } from "@ai-sdk/openai";
import { Agent } from "@mastra/core/agent";
import { MCPClient } from "@mastra/mcp";
import { Composio } from "@composio/core";
import * as readline from "readline";

import type { AiMessageType } from "@mastra/core/agent";

const openaiAPIKey = process.env.OPENAI_API_KEY;
const composioAPIKey = process.env.COMPOSIO_API_KEY;
const composioUserID = process.env.COMPOSIO_USER_ID;

if (!openaiAPIKey) throw new Error("OPENAI_API_KEY is not set");
if (!composioAPIKey) throw new Error("COMPOSIO_API_KEY is not set");
if (!composioUserID) throw new Error("COMPOSIO_USER_ID is not set");

const composio = new Composio({ apiKey: composioAPIKey as string });

async function main() {
  const session = await composio.create(composioUserID as string, {
    toolkits: ["doppler_marketing_automation"],
  });

  const composioMCPUrl = session.mcp.url;

  const mcpClient = new MCPClient({
    id: composioUserID as string,
    servers: {
      doppler_marketing_automation: {
        url: new URL(composioMCPUrl),
        requestInit: {
          headers: session.mcp.headers,
        },
      },
    },
    timeout: 30_000,
  });

  const composioTools = await mcpClient.getTools();

  const agent = new Agent({
    name: "doppler_marketing_automation-mastra-agent",
    instructions: "You are an AI agent with Doppler marketing automation tools via Composio.",
    model: "openai/gpt-5",
  });

  let messages: AiMessageType[] = [];

  const rl = readline.createInterface({
    input: process.stdin,
    output: process.stdout,
    prompt: "> ",
  });

  rl.prompt();

  rl.on("line", async (input: string) => {
    const trimmed = input.trim();
    if (["exit", "quit"].includes(trimmed.toLowerCase())) {
      rl.close();
      return;
    }

    messages.push({ id: crypto.randomUUID(), role: "user", content: trimmed });

    const { text } = await agent.generate(messages, {
      toolsets: { doppler_marketing_automation: composioTools },
      maxSteps: 8,
    });

    if (text) {
      console.log(`Agent: ${text}\n`);
      messages.push({ id: crypto.randomUUID(), role: "assistant", content: text });
    }

    rl.prompt();
  });

  rl.on("close", async () => {
    await mcpClient.disconnect();
    process.exit(0);
  });
}

main();

Conclusion

You've built a Mastra AI agent that can interact with Doppler marketing automation through Composio's Tool Router. You can extend this further by:

Adding other toolkits like Gmail, Slack, or GitHub
Building a web-based chat interface around this agent
Using multiple MCP endpoints to enable cross-app workflows

TOOLS

Supported Tools

Every Doppler marketing automation action and event your agent gets out of the box.

Add Subscriber

Tool to add a new subscriber to a specific list for a specified account.

Check Subscriber Exists

Tool to check if a subscriber exists in a Doppler account by their email.

Create Account Subscriber

Tool to create or associate a subscriber to a Doppler account with optional list memberships.

Unsubscribe Subscriber

Tool to mark a subscriber as unsubscribed (removed) in an account.

Create List

Tool to create a new subscriber list for a specified account.

Delete List

Tool to delete a specific subscriber list by its ID.

Get Account

Tool to retrieve account details and available action links for a specific Doppler account.

Get API Index

Tool to retrieve the API index with available actions and links.

Get Campaign

Tool to retrieve details of a specific campaign by campaign ID.

Get Campaign Content

Tool to retrieve the HTML content of a campaign email.

Get Campaigns

Retrieve a page of campaigns associated with a specified account, with optional filters and pagination parameters.

Get Campaign Social Media Preferences

Tool to retrieve social media configuration for a specific campaign.

Get List

Tool to retrieve details of a specific subscriber list by its ID.

Get Lists

Retrieve a page of subscriber lists associated with a specified Doppler account, with optional pagination parameters.

Get Removed Subscribers

Retrieve removed subscribers for an account, optionally filtered by date and page.

Get Subscriber

Tool to retrieve details of a specific subscriber by their email.

Get Subscriber Permissions History

Tool to retrieve the update history of a permission field for a specific subscriber.

Get Subscribers

Retrieve a page of subscribers from a specific list by list ID, with optional filters and pagination.

Get Task

Tool to retrieve details of a specific task by its ID.

Import Subscribers

Submit a bulk import of subscribers to a specific list to add or update subscriber records.

Import Subscribers from CSV

Tool to import subscribers from CSV data into a specific list.

Import Subscribers To Account

Tool to import multiple subscribers into an account.

Import Unsubscribed Subscribers

Tool to import a batch of unsubscribed (removed) subscribers for a Doppler account.

List Account Fields

Tool to retrieve all custom fields for a Doppler account.

List Account Subscribers

Tool to retrieve paginated subscribers of a Doppler account.

List Accounts Tasks

Retrieve a paginated collection of tasks linked to a specific Doppler account.

List Import Errors

Tool to retrieve errors from a specific import task.

List Accounts Unsubscribed

Tool to retrieve a paginated collection of subscribers who have unsubscribed from your lists.

List Automations

Tool to retrieve all automations for a specified Doppler account.

List Campaign Recipients

Tool to retrieve recipients (lists and segments) of a specific campaign.

List Subscriber Deliveries

Retrieve a page of campaign delivery details for a specific subscriber, with optional pagination.

Remove Subscriber

Tool to remove a specific subscriber from a list.

Update Account Integration

Tool to create or update a third-party app integration for a Doppler account.

Update Campaign Recipients

Tool to update the recipients (lists and/or segments) of a campaign.

Update Campaign Social Media

Tool to update social media preferences for a campaign.

Update Campaign Text Alternative

Tool to update the alternative text content of a campaign.

Update Double Opt-in Template Content

Tool to update the HTML content of a double opt-in validation template.

Update List

Tool to update details of an existing subscriber list.

FRAMEWORKS

How to build Doppler marketing automation MCP Agent with another framework

Claude Code

Use Doppler marketing automation MCP with Claude Code

Claude Cowork

Use Doppler marketing automation MCP with Claude Cowork

OpenAI Agents SDK

Use Doppler marketing automation MCP with OpenAI Agents SDK

Claude Agent SDK

Use Doppler marketing automation MCP with Claude Agent SDK

Codex

Use Doppler marketing automation MCP with Codex

OpenClaw

Use Doppler marketing automation MCP with OpenClaw

Hermes

Use Doppler marketing automation MCP with Hermes

Atomic Agent

Use Doppler marketing automation MCP with Atomic Agent

Google ADK

Use Doppler marketing automation MCP with Google ADK

LangChain

Use Doppler marketing automation MCP with LangChain

Vercel AI SDK

Use Doppler marketing automation MCP with Vercel AI SDK

LlamaIndex

Use Doppler marketing automation MCP with LlamaIndex

CrewAI

Use Doppler marketing automation MCP with CrewAI

Pydantic AI

Use Doppler marketing automation MCP with Pydantic AI

AutoGen

Use Doppler marketing automation MCP with AutoGen

MORE TOOLKITS

Explore Other Toolkits

Toolkit marketplace

Oauth2

Reddit is a social news platform with thriving user-driven communities (subreddits). It's the go-to place for discussion, content sharing, and viral marketing.

Facebook

Oauth2

Facebook is a social media and advertising platform for businesses and creators. It helps you connect, share, and manage content across your public Facebook Pages.

Oauth2

LinkedIn is a professional networking platform for connecting, sharing content, and engaging with business opportunities. It's the go-to place for building your professional brand and unlocking new career connections.

Active campaign

Api Key

ActiveCampaign is a marketing automation and CRM platform for managing email campaigns, sales pipelines, and customer segmentation. It helps businesses engage customers and drive growth through smart automation and targeted outreach.

FAQ

Frequently asked questions

With a standalone Doppler marketing automation MCP server, the agents and LLMs can only access a fixed set of Doppler marketing automation tools tied to that server. However, with the Composio Tool Router, agents can dynamically load tools from Doppler marketing automation and many other apps based on the task at hand, all through a single MCP endpoint.

Yes, you can. Mastra AI 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 Doppler marketing automation tools.

Yes, absolutely. You can configure which Doppler marketing automation 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 Doppler marketing automation data and credentials are handled as safely as possible.

Start with Doppler marketing automation.It takes 30 seconds.

Managed auth, hosted MCP servers, and every Doppler marketing automation tool your agent needs.Free to start.

Start building

How to integrate Doppler marketing automation MCP with Mastra AI

Connect Doppler marketing automation without auth hassles

Introduction

Also integrate Doppler marketing automation with

TL;DR

What is Mastra AI?

What is the Doppler marketing automation MCP server, and what's possible with it?

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

What is Composio SDK?

How the Composio SDK works

Step-by-step Guide

Prerequisites

Getting API Keys for OpenAI and Composio

Install dependencies

Set up environment variables

Import libraries and validate environment

Create a Tool Router session for Doppler marketing automation

Configure Mastra MCP client and fetch tools

Create the Mastra agent

Set up interactive chat interface

Complete Code

Conclusion

Supported Tools

How to build Doppler marketing automation MCP Agent with another framework

Claude Code

Claude Cowork

OpenAI Agents SDK

Claude Agent SDK

Codex

OpenClaw

Hermes

Atomic Agent

Google ADK

LangChain

Vercel AI SDK

LlamaIndex

CrewAI

Pydantic AI

AutoGen

Explore Other Toolkits

Reddit

Facebook

Linkedin

Active campaign

Frequently asked questions

What are the differences in Tool Router MCP and Doppler marketing automation MCP?

Can I use Tool Router MCP with Mastra AI?

Can I manage the permissions and scopes for Doppler marketing automation while using Tool Router?

How safe is my data with Composio Tool Router?

Start with Doppler marketing automation.It takes 30 seconds.