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How to connect Maildroppa MCP with ChatGPT Work

Connect ChatGPT Work to Maildroppa MCP. Send newsletter to recent signups, segment subscribers by recent opens and clicks, and more using natural language, with authentication handled for you.

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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

How to connect Maildroppa MCP with ChatGPT Work

ChatGPT Work is an agent inside ChatGPT built for your most ambitious work. It takes action across your apps and files, stays with a project for hours, and turns a goal into finished materials like sheets, slides, and docs - not just answers.

In this guide, I will explain the easiest and most secure way to connect your Maildroppa account to ChatGPT Work via Composio Connect, so it can manage subscribers, segment audiences, send campaigns, and trigger transactional emails through natural language commands without ever putting your account credentials at risk.

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Why use Composio over default connectors?

  • Apps with read and write access. Default connectors mostly can read your data. Composio's Maildroppa integration lets ChatGPT Work take actions like creating drafts, sending updates, labeling records, and more.
  • 1,500+ SaaS toolkits out of the box. Composio gives you instant access to a vast catalog of pre-built connectors, from Gmail and Slack to Notion, Linear, and Salesforce.
  • One MCP server for every app. Connect any of your applications on demand through a single endpoint, rather than juggling a separate server for each app.
  • Smart, context-aware tool loading. Unlike traditional MCP servers that dump every available tool into the LLM context window, Composio searches for and loads only the tools relevant to the task at hand.
  • Cross-app automation. Chain actions across multiple apps in a single run - fetch a thread, summarize it in Notion, and post highlights to Slack without leaving the conversation.

Prerequisites

  • A ChatGPT account with access to ChatGPT Work (rolling out across Pro, Enterprise, Edu, Plus, and Business plans). We will use the ChatGPT desktop app, which is available on every plan.
  • Access to the Maildroppa workspace you want to connect.
  • Composio MCP.

Note: Composio connects through OAuth. You will be asked to sign in and approve specific permissions. Review the permission screen carefully if you are using a work account.

Step-by-step: Connect Maildroppa to ChatGPT Work

1. Open the MCP settings

In ChatGPT Work, go to Settings and open the Plugins section. Inside the Plugins page, click the MCP tab.

ChatGPT Work settings showing the Plugins page with the MCP tab selected

2. Add the server

Click Add server. In the Name field enter Composio, for Type select Streamable HTTP, and in the URL field paste the Composio MCP server URL:

bash
https://connect.composio.dev/mcp
ChatGPT Work Add server dialog with the name Composio, type Streamable HTTP, and the Composio MCP URL

Then click Save. The Composio server now appears in your MCP plugins list.

ChatGPT Work Plugins page showing the Composio MCP server added to the list

3. Authenticate

Click Authenticate, log in via Composio, and click Allow access to authorize ChatGPT Work to use your Composio account.

Composio login and Allow access screen for ChatGPT Work MCP setup

4. Start using Composio

That is it - Composio tools are now available in ChatGPT Work. Ask it to work with your Maildroppa account and it will run the actions you authorize.

What you can do after connecting Maildroppa

  • Send newsletter to recent signups
  • Segment subscribers by recent opens and clicks
  • Create transactional email for password reset

Security + privacy notes (important)

  • Use least-privilege access: Only grant permissions you actually need.
  • Review OAuth permissions before approving: Make sure requested scopes match what you expect Composio and ChatGPT Work to do.
  • Keep write actions human-reviewed: For actions like sending messages, creating labels, or editing drafts, keep manual confirmation enabled.
  • Be careful with sensitive data: Avoid using this setup with highly sensitive information unless allowed by your personal, company, or client policies.
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.

FRAMEWORKS

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FAQ

Frequently asked questions

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

Yes, you can. ChatGPT Work 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 Maildroppa tools.

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

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