We are excited to introduce you to the Model Context Protocol (MCP).
MCP is a powerful connection between Onepage and the AI assistants you already use daily outside of our platform. Instead of working exclusively in the integrated editor, you can now use your own external AI assistant to control Onepage, create pages, and manage content for you.
Technically speaking, both systems use the same Onepage AI brain and are capable of creating complete pages as well as individual sections.
The difference compared to the internal AI: With MCP, you save your Onepage credits, as all text tokens run directly through your own external AI subscription (e.g., with Claude or Cursor). This leaves your Onepage AI credits completely untouched.
Step-by-Step Instructions for Setup
Depending on which AI assistant you prefer to use, you can find the exact instructions on how to establish the connection to Onepage here:
Connect Claude with Onepage MCP: Do you use Claude? Find out how it works here: Connect Claude with Onepage MCP.
Connect Cursor with Onepage MCP: If you use Cursor, follow this guide: Connect Cursor with Onepage MCP.
Connect Codex with Onepage MCP: Would you like to use Codex? Here we show you the setup: Connect Codex with Onepage MCP.
What Exactly Is MCP anyway?
The Model Context Protocol (MCP) is like a "USB-C port for AI." In the past, every software manufacturer had to write their own complicated API connection for each individual AI. MCP standardizes this.
It is divided into:
MCP Client: The AI program you use (e.g., Claude Desktop, Cursor, Codex).
MCP Server: The bridge to your software (here: The Onepage MCP server, which understands the AI's commands and translates them into website code).
The Three Pillars of MCP
An MCP server can provide three things to an AI:
Prompts (Templates): Pre-made prompt building blocks that the user can use.
Resources (Context): Data that the AI can read (e.g., the structure of your existing Onepage page).
Tools (Actions): Functions that the AI is allowed to execute (e.g., "Create a new section", "Change the font color").
What Is Possible via MCP?
Your external AI assistant can execute the following actions via MCP:
Pages: Create, publish, take offline, and archive
Vibe Sections: Fully create and edit individual components
Structure: Rename, move, and rearrange sections
Websites: Create new websites, manage branding (colors & fonts), and upload media
Important Rules & Best Practices
The quality of the model is crucial:
MCP depends heavily on the AI model used. For the best results, we recommend premium models like Claude Opus 4.8. You should not expect perfect results from smaller models like Haiku or GPT Flash.
Always give clear context:
Always tell the AI exactly which page or section should be worked on (e.g., "Add a contact section to my homepage").
Reload the page to see changes:
The live view is still in development. If you have the Onepage editor open while the AI is working, reload the page to see the changes.
Be careful with major changes:
An extended version history is already planned. Until then, we recommend being cautious with large or imprecise prompts on existing live projects, as content could be overwritten.
What happens if something doesn't look perfect?
If a layout or text doesn't look exactly how you imagined it on the first try, don't worry! This is completely normal when working with AI. You don't have to correct it manually; you can simply tell your AI assistant what to change.
Example: If a headline overlaps on your new page, you can enter the following follow-up prompt into your AI tool:
"Please correct the text 'People behind Nova Living'. The word 'Living' overlaps with the text above."
Example of Claude's response:
"I see the problem: The headline breaks into two lines and overlaps. I have adjusted the font size and line spacing so that it fits perfectly on one line, and added a rule so that it looks great on mobile screens too. The correction is live!"
Note: Remember to reload your Onepage editor tab to see the AI's updates live on your page!
Result:
💡 Do you have feedback on this help article? Feel free to share it with us via live chat or at support@onepage.io so that we can keep it up to date. 🙂