How to Use the Buttondown MCP in Windsurf

Q: Can Windsurf Cascade send emails automatically?

Cascade can draft emails using createemail but it won't hit the final send button unless you authorize it or configure your workflow to allow it. It handles the prep work so you can do the final review.

Q: Does the Buttondown MCP Server support subscriber tags in Windsurf?

Yes, Cascade can read your existing tags using listtags and apply them when managing your audience. This helps you segment your list directly from your editing workspace.

Q: How do I view my list performance inside Windsurf?

Ask Cascade to check your metrics. It will use getemailanalytics and listemails to compile a report of your recent open and click rates directly in your panel.

Draft newsletter campaigns and sync subscribers directly from your Windsurf Cascade workspace.

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Create your Vinkius account to connect Buttondown to Windsurf and route execution through our secure gateway. The platform manages server hosting, runtime updates, and security layers. Configuration requires no manual server provisioning.

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Setup Buttondown with Windsurf

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Run newsletter drafts directly from Windsurf

The `create_email` tool lets Cascade write and save newsletter drafts right in your Buttondown account. Cascade reads your local markdown files, structures the email body, and creates the draft without you having to copy-paste between windows. If Cascade spots a typo or wants to suggest an edit, it can read the draft back using `get_email` and update it. It handles the back-and-forth context gathering so you only have to review the final draft in your browser before hitting send.

Manage subscribers inside this MCP Server

The `create_subscriber` tool registers new readers to your mailing list directly from Cascade's workspace. Cascade can pull email addresses from local database exports or sign-up logs and feed them straight into Buttondown. You can also use `list_subscribers` and `get_subscriber` to check if a specific user is already on your list or to inspect their tags. Cascade chains these checks before adding duplicates, keeping your subscriber list clean without manual work.

Track email performance metrics in Windsurf Cascade

The `get_email_analytics` tool pulls open rates, click counts, and delivery data for any newsletter you send. Cascade runs these checks and summarizes the performance trends of your recent campaigns right inside your IDE using this MCP setup. It can cross-reference this data by fetching your active campaigns using `list_emails`. This lets you write a summary markdown file in your repo showing which topics got the most clicks.

Setup guide

Set up Buttondown MCP in Windsurf

Prerequisites

Windsurf IDE installed (macOS, Windows, or Linux)
Active Vinkius subscription with a valid endpoint token

1

Open MCP configuration

Click the Cascade assistant icon in the sidebar, then click the hammer icon (🔨) at the top of the panel. Select "Configure" to open ~/.codeium/windsurf/mcp_config.json.
2

Add the Buttondown MCP

Paste the JSON snippet shown on the right into the mcpServers object. Replace [YOUR_TOKEN_HERE] with your endpoint token from cloud.vinkius.com.
3

Refresh MCPs

Go back to the hammer icon (🔨) in Cascade and click "Refresh". Windsurf will detect the new server. No full restart is needed — the connection is hot-reloaded.
4

Verify in Cascade

Start a new Cascade conversation and ask something like "Show my Buttondown payment history." If connected, Cascade will call the Buttondown tools directly. You will see a green dot next to the server name in the MCP panel.

mcp_config.json

{
  "mcpServers": {
    "buttondown-mcp": {
      "url": "https://edge.vinkius.com/[YOUR_TOKEN_HERE]/mcp"
    }
  }
}

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Common questions about Buttondown MCP in Windsurf

Open your local configuration file and add the MCP Server configuration under the mcpServers key. You can also use the Settings UI under Cascade to add the connection URL.

Cascade can draft emails using `create_email` but it won't hit the final send button unless you authorize it or configure your workflow to allow it. It handles the prep work so you can do the final review.

Yes, Cascade can read your existing tags using `list_tags` and apply them when managing your audience. This helps you segment your list directly from your editing workspace.

Ask Cascade to check your metrics. It will use `get_email_analytics` and `list_emails` to compile a report of your recent open and click rates directly in your panel.

All subscriber emails, newsletter drafts, and analytics remain inside Vinkius's secure sandboxed environment. The server only communicates with the official API using your secure token, meaning your audience's personal data never gets exposed to third parties.

Use it with your favorite AI tools

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