RGE Studio's MCP Server (beta)

Beefree App is now RGE Studio!
The email design suite you already know and love just leveled up. We’re working hard to update our help center, but you still may see some references to the old product name.

Overview

RGE Studio’s MCP Server (beta) connects RGE Studio to the AI tools you already use. Create, edit, and export emails right from Claude, ChatGPT, n8n, or your own custom agent. You never have to leave that tool to do it.

The MCP is available for every type of RGE Studio user except for viewers.

What you can do with the MCP Server

MCP stands for Model Context Protocol, and it's used to connect AI tools to external software. Connect RGE Studio’s MCP server to your AI tool, and you can:

• Create a new email based on an existing design in your account
• Create a new email using your workspace's saved styles
• Save an email to a specific Workspace and folder
• Preview an HTML email saved in your account
• Update an email design saved in your account
• Clone an email and edit it inside your AI tool
• Export an email as HTML

How to connect

RGE Studio’s MCP Server runs on a remote server. 

The server URL is the same for every tool: https://mcp.reallygoodemails.com/mcp

The steps differ by tool, but the core process is the same. First, the AI tool needs the MCP Server URL. Second, sign in to your RGE Studio account through a secure authentication link (OAuth). This creates the connection between the two tools. The setup is done completely in the AI tool of your choice. 

Many of these tools frequently update their interface. You may also see a different UI depending on your account type. Please refer to the linked documentation for each tool to find up-to-date information. No matter which tool you use, the authorization step will prompt you to log in using your RGE Studio credentials. 

Claude (recommended)

We recommend Claude. RGE Studio’s MCP Server is built and tested for it first. Claude calls this kind of connection a connector.

1. In Claude, you need to create a custom connector.
2. Insert a name and the MCP Server URL.
3. Click Connect, then sign in with your RGE Studio account.

For the exact steps in Claude's current interface, see Anthropic's guide to custom connectors.

Once connected, open a new chat and prompt RGE Studio to create an email.

ChatGPT

ChatGPT calls this kind of connection an app. To add an app, ChatGPT requires a paid plan with Developer Mode turned on.

You configure the MCP app first. Once it's published, you're prompted to log in with your RGE Studio account.

For current setup steps, see OpenAI's help center article on developer mode and MCP apps in ChatGPT.

n8n

n8n calls this kind of connection a node. Use the built-in MCP Client Tool node to connect an n8n AI agent to RGE Studio MCP.

See n8n's documentation for the MCP Client Tool node for full setup steps.

Point the node at the server URL above. Use HTTP Streamable transport and OAuth2 authentication.

Claude Code

Claude Code is only available on the desktop app. In your terminal, run:

claude mcp add --transport http rge-studio https://mcp.reallygoodemails.com/mcp

Then run /mcp in your session and complete the browser login.

See Claude Code's MCP documentation for more.

Custom agent

If you're building your own agent, point your MCP client at the server URL above. Your client discovers and registers itself securely through OAuth. You do not need a client ID or secret.

Complete the browser sign-in with your RGE Studio account.

Things to know

• You can write to RGE Studio’s MCP Server in any language.
• Your RGE Studio role controls what you can do. Viewers cannot create emails through the MCP Server.
• If your workspace is linked to a Brand Kit, new emails follow your Brand Kit styles by default. You can ask your AI tool to use different styles, even when color palette restrictions are turned on.
• We may add a formal RGE Studio listing to Claude's connector directory in the future.