Loops

Loops is a modern email platform for SaaS companies. The Loops MCP server lets you manage contacts, mailing lists, and send transactional or event-triggered emails using natural language.

What Can It Do?

Manage contacts including create, update, find, and delete
Organize mailing lists and subscriber segments
Send event-triggered emails to automate communication flows
Send transactional emails with dynamic data variables
Retrieve contact properties for audience insights

Where to Use It

Add Loops as a tool to any agent. The agent can then interact with your email platform conversationally, choosing the right actions based on context.

To add an MCP tool to your agent:

Open your agent’s configuration
Click Add tools → Connect an app with MCP
Search for the integration and select it
Authenticate with your Loops account

You can control which tools your agent has access to. After adding an integration, click on it to enable or disable specific tools based on what your agent needs.

Available Tools

Tool	Description
List Mailing Lists	Retrieve all mailing lists with name, description, and privacy settings
Find Contact	Find a contact by email address or user ID
Create Contact	Create a new contact with email and optional properties like name, source, and mailing list subscriptions
Update Contact	Update or create a contact with new properties (requires email or userId)
Delete Contact	Delete a contact by email address or user ID
List Contact Properties	Retrieve contact properties, optionally filtered to custom properties only
Send Event	Send events to trigger emails in Loops, identified by email or userId
Send Transactional Email	Send a transactional email with data variables and optional attachments
List Transactional Emails	Retrieve transactional emails with automatic pagination support

Example Prompts

Use these with your agent: Find a contact:

Find the contact with email sarah@company.com

Create a contact:

Create a new contact with email john@startup.io, first name John, last name Doe, and subscribe them to the Product Updates mailing list

Send an event:

Send a "signup_completed" event for the contact with email new_user@example.com

Send a transactional email:

Send the welcome email template to alex@business.com with the data variable company_name set to "Acme Inc"

List mailing lists:

Show me all my mailing lists and their privacy settings

Troubleshooting

Issue	Solution
Contact not found	Verify the email address or userId is correct
Action not completing	Check that you’ve authenticated with your Loops API key
409 Conflict error	The contact already exists; use Update Contact instead of Create Contact
Unexpected results	The agent may chain multiple tools (e.g., finding a contact first, then updating). Review the agent’s reasoning to understand its approach.
Tool not available	Verify the tool is enabled in your agent’s MCP configuration

Agents are smart enough to chain multiple API calls together. For example, asking “Subscribe john@example.com to the Newsletter list” will find the contact first, then update their mailing list subscriptions. If results seem off, check the agent’s step-by-step reasoning.

Need Help?

Agents documentation for setup and best practices
Need help? Reach out to us
Contact support@gumloop.com for assistance

Use this integration directly in Claude or Cursor. Connect remotely via the Loops MCP server using credentials from your Connectors page.

Get Started

Core Concepts

Enterprise Features

Connectors

What Can It Do?

Where to Use It

Available Tools

Example Prompts

Troubleshooting

Need Help?

​What Can It Do?

​Where to Use It

​Available Tools

​Example Prompts

​Troubleshooting

​Need Help?

What Can It Do?

Where to Use It

Available Tools

Example Prompts

Troubleshooting

Need Help?