RGE Studio's MCP Server

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 connects RGE Studio to the AI tools you already use. Create, edit, and export emails without leaving that tool.

Every RGE Studio user role can use the MCP Server, except viewers.

What you can do

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 and refine an email in the Light Builder
• 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. You complete the whole setup in your AI tool.

Many of these tools update their interface often, and you may see a different interface depending on your account type. Follow the linked documentation for each tool to find current steps.

Claude (recommended)

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

1. In Claude, create a custom connector.
2. Enter 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 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's MCP Server.

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.

Microsoft Copilot

Microsoft Copilot calls this kind of connection a connector. Use Copilot Studio (the desktop app), which requires a paid plan. Once connected there, you can use it in both Copilot Studio and Microsoft 365.

See Microsoft's documentation on creating a custom connector to add to an agent.

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.

Light Builder

The Light Builder is a lightweight version of the RGE Studio builder that opens inside your AI tool. Use it to point at the exact part of your email you want to change, instead of describing it in a prompt.

To edit an email in the Light Builder:

1. Ask your AI tool to open an email. The Light Builder opens in the chat as a draft.
2. Click a row or content block to select it. To select more than one, hold Shift while you click.
3. Describe what you want to change in the feedback box.
4. Ask your AI tool to apply your feedback. The update appears in the Light Builder.
5. When you're done, ask your AI tool to save the email. You can overwrite the original or save it as a new copy.

Your original email stays the same until you ask your AI tool to save it. All changes in the Light Builder are made by your AI tool. To edit an email by hand, open it in the RGE Studio builder.

Things to know

• You can write to RGE Studio's MCP Server in any language.
• Your RGE Studio role controls what you can do 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.
• In the Light Builder, images load through the RGE Studio CDN and may be cached for a short time. AI tools only show images from approved sources, so this is how your images appear in the preview. The image URLs in your email stay the same.
• We may add a formal RGE Studio listing to Claude's connector directory in the future.