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Maildroppa MCP server for AI agents and assistants

Securely connect your AI agents and chatbots (Claude, ChatGPT, Cursor, etc) with Maildroppa MCP or direct API to manage subscribers, build and send campaigns, segment audiences, and trigger transactional emails through natural language.

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Api Key

Maildroppa is an email marketing platform for managing subscribers, segmentation, newsletters, transactional email, events, and webhooks. Use it to automate campaigns, personalize messaging, and track engagement.

23 Tools

Try Maildroppa now

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

TOOL ROUTER PLAYGROUND
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TOOLS

Supported Tools

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

Archive Tag

Archive one customer-managed tag.

Count Segment Subscribers

Return the current number of subscribers matching one stored segment.

Create Segment

Create a subscriber segment from field, tag, or nested-segment conditions.

Create Subscriber

Create a subscriber without sending an opt-in message, with optional typed field values and tag assignments.

Create Subscribers

Sequentially create 1-25 subscribers without sending opt-in messages.

Create Tag

Create a customer-managed tag that can be assigned to subscribers.

Delete Segment

Permanently delete exactly one stored subscriber segment identified by an explicit segment ID.

Delete Subscriber

Permanently delete exactly one subscriber identified by an explicit subscriber ID.

Get Form Embedding

Return an active Maildroppa form's ordered input-field definition for rendering in a trusted website integration.

Get Segment

Return one stored subscriber segment and its complete filter expression by ID.

Get Subscriber

Return one Maildroppa subscriber by ID, including display field values, tag IDs, status, registration date, and GDPR agreement.

Get Tag Usage

Return subscriber assignments and archive or permanent-delete blockers for one Maildroppa tag.

List Forms

Return signup form overviews with IDs, type, status, publication state, and public routing details.

List RSS Newsletters

Return the account's RSS newsletter configurations without activating, checking, or sending them.

List RSS Sender Profiles

Return sender profiles available to RSS newsletters, including verification and delivery readiness.

List Segments

Return the account's stored subscriber segments and filter expressions.

List Subscriber Activity

Return one page of a subscriber's activity timeline with delivery eligibility and summary counts.

List Subscriber Fields

Return built-in and custom subscriber field definitions, optionally including archived custom fields.

List Subscribers

Return one page of subscribers, optionally filtered by free text, status, or structured segment conditions.

List Tags

Return account tags, optionally including archived tags.

Restore Tag

Restore an archived customer-managed Maildroppa tag so it can be assigned to subscribers again.

Update Segment

Replace a segment's name and complete filter expression.

Update Tag

Rename an existing customer-managed tag.

SETUP GUIDE

Connect Maildroppa 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: ["maildroppa"],
  mcp: true,
});
Create a session scoped to Maildroppa 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: "Send newsletter to recent signups",
  stopWhen: stepCountIs(10),
});

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

Connect Maildroppa 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: ["maildroppa"] });
const tools = await session.tools();
Initialize Composio with the OpenAI Responses provider and create a session scoped to Maildroppa
3

Run Maildroppa tools with your agent

typescript
let response = await client.responses.create({
  model: "gpt-5.6-sol",
  tools,
  input: [{ role: "user", content: "Send newsletter to recent signups" }],
});

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 Maildroppa tool calls through the session, and print the final answer

Why Use Composio?

AI Native Maildroppa Integration

  • Supports both Maildroppa MCP and direct API based integrations
  • Structured, LLM-friendly schemas for reliable tool execution
  • Rich coverage for reading, writing, and querying your Maildroppa data

Managed Auth

  • Built-in OAuth handling with automatic token refresh and rotation
  • Central place to manage, scope, and revoke Maildroppa 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 Maildroppa
  • Scoped, least privilege access to Maildroppa resources
  • Full audit trail of agent actions to support review and compliance
FRAMEWORKS

Use Maildroppa with any AI Agent Framework

Choose a Framework you want to connect Maildroppa with

ChatGPT logo

ChatGPT

Use Maildroppa MCP with ChatGPT

Claude Cowork logo

Claude Cowork

Use Maildroppa MCP with Claude Cowork

Hermes logo

Hermes

Use Maildroppa MCP with Hermes

Atomic Agent logo

Atomic Agent

Use Maildroppa MCP with Atomic Agent

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

When you connect a Maildroppa account through Composio, every action runs under that account, so anything the agent creates, sends, or changes shows up in Maildroppa 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 Maildroppa. If Maildroppa 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 Maildroppa 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 Maildroppa 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 Maildroppa rejects the old key. Create a new key in Maildroppa and reconnect the account from the Composio dashboard or by asking your agent to reconnect Maildroppa. Nothing else changes.

Composio's free Hobby plan includes 100,000 tool calls per month with no credit card, which covers most personal Maildroppa use. Paid plans add higher limits and team features. Your Maildroppa 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 Maildroppa accounts).

With Composio, you connect Maildroppa 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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Managed auth, hosted MCP servers, and every Maildroppa tool your agent needs.Free to start.

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