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Connecting Pastel to Cursor

Add Pastel to Cursor so it can read your canvases and comments, trace them back to your code, fix them and resolve them for you.

Written by Valentin Staykov

These instructions cover how to add Pastel to Cursor. New to this? Start with Using the Pastel MCP server for an overview of what Cursor will be able to do once it's connected.

You'll need: a Pastel account, and Pastel's MCP server URL: https://api.usepastel.com/mcp

Set it up

  1. Go to Customize → MCPs, then click New MCP server.

  2. Paste the following into the mcp.json file that opens, then save:

    1. {
        "mcpServers": {
          "pastel": {
            "type": "http",
            "url": "https://api.usepastel.com/mcp"
          }
        }
      }

  3. Click Authenticate and complete the authorization flow to sign in to Pastel and approve access.

If you already have other servers in your mcp.json, add the "pastel" block alongside them inside the existing mcpServers object rather than replacing the whole file.

Check that it worked

Open a new chat in Cursor and ask:

List my Pastel canvases.

If Cursor comes back with your canvases, you're connected. If it says it doesn't have access to Pastel, start a fresh chat, as agents usually only pick up new tools at the start of a conversation.

Get the most out of it

Cursor is already sitting in your codebase, so it can take a piece of feedback from end to end:

Take comment #14 on the pricing page canvas. Work out what's causing it, fix it, reply on the comment explaining what you changed, and mark it resolved.

Pastel sends Cursor a canvas-specific investigation guide with every comment (which page to open, which element the comment is pinned to, where the screenshot is), so you don't need to explain any of that yourself.

You can also hand it a whole batch:

Go through the unresolved comments on the staging canvas, fix the ones that are clearly CSS issues, and leave the rest for me with a reply saying why.

Managing your connection

Every agent you've connected is listed in the MCP section of your Pastel profile settings, and can be disconnected there at any time.

Cursor only ever sees the canvases and comments that you can see, because it acts as you.

Something not working?

Cursor changes quickly and these steps can fall out of date. If a menu isn't where we've said it is, or the connection won't complete, let us know and we'll help you out.

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