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Connect Buttondown to ChatGPT, Claude and Gemini

Set it up once and it works in ChatGPT, Claude, Cursor, and any other client you love. It all runs safely in the background, so you can relax and focus on what really matters. Run your entire email campaign through a chat interface.

Ask AI about this Connector

Developed, maintained, and hosted by Vinkius.

MCP VERIFIED · PRODUCTION READY · VINKIUS GUARANTEED

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Works with modern AI clients that support MCP, including ChatGPT, Claude, Cursor, and more.

ChatGPTClaudeCursorPerplexityGeminiMicrosoft CopilotRaycastMeta AI

Your AI does the work. We keep it safe and sound.

No other AI tool gives you this. Your workflow runs in the client you already love, your account stays protected, and you decide what the agent can and cannot do. It is the whole reason to make the switch.

Each Connector lives inside our infrastructure, the same place where your workflow runs. The three things below are already part of it, working quietly in the background so you never have to think about them. Nothing to add, nothing to set up, nothing to worry about.

A futuristic MCP client docking bay
V8 Isolate01

Each Connector runs inside its own sealed environment.

Each Connector runs inside its own sealed V8 runtime — no access to your files, your system, or other servers. A Connector never sees past its own request.

Kill Switch02

One switch stops every agent. Instantly.

One action deactivates every Connector, revokes every token, and ends every session at once. AI Governance keeps the record.

FinOps per User03

Spending limits that pause instead of surprise.

Every user keeps their own connections and credentials, isolated from everyone else. Anything that would cross your spending limit is held for your approval, not billed.

Three controls, built into the layer your AI connects through.

Curated set · 10 capabilities

We ship only the actions that matter.

Capability set01 / 03

01-04

4 capabilities in this set.

Part of 10 available through Buttondown.

  1. 01

    Create subscriber

    This capability adds a new person to your newsletter subscriber list.

  2. 02

    List tags

    Use this to see all the different tags you have assigned to your subscribers.

  3. 03

    Create email

    This capability lets you build a new email or a draft within your account.

  4. 04

    Get account info

    This capability pulls your core account and profile settings.

Capability set02 / 03

05-07

3 capabilities in this set.

Part of 10 available through Buttondown.

  1. 05

    Get email analytics

    Use this to get the open and click rates for a specific email you sent.

  2. 06

    List emails

    This capability shows you a list of all your sent emails and current drafts.

  3. 07

    List subscribers

    This capability retrieves the full list of people subscribed to your newsletter.

Capability set03 / 03

08-10

3 capabilities in this set.

Part of 10 available through Buttondown.

  1. 08

    Get email

    Use this to pull the specific details of a single email.

  2. 09

    Get subscriber

    This capability fetches the profile and metadata for a specific subscriber.

  3. 10

    List newsletters

    This capability lists every newsletter managed under your account.

Real work

What teams actually run

01

Quick Subscriber Checks

Ask your agent for a subscriber count or a specific user's details during a content planning session.

02

Rapid Email Drafting

Tell your agent to create a draft with a specific subject and body to save time.

03

Performance Audits

Request analytics for your most recent email to see how well it performed.

04

Audience Organization

Use the agent to list or manage tags to keep your newsletter segments clean.

Automate a task

Put Buttondown to work on one thing.

Step-by-step automations your AI runs through this Connector: the workflow, the prompts to start with, and the exact capabilities behind each move.

One connector, every AI

Buttondown works with the most popular AI clients.

These are the most popular clients, each with a step-by-step guide: one link, set up once, with governance and visibility built in. And because everything runs on the MCP standard, the same connection also works in any other compatible client — nothing to rebuild.

ClaudeClaudeChatGPTChatGPTGeminiGeminiPerplexityPerplexityGrokGrokMicrosoft CopilotMicrosoft CopilotCursorCursorVS CodeVS CodeWindsurfWindsurfJetBrainsJetBrainsClineClineLangChainLangChainVercel AI SDKVercel AI SDKLovableLovableZ.aiZ.aiRaycastRaycastQwen CodeQwen CodeKimi CodeKimi CodeLe ChatLe Chat

Building your own app? The connector is yours to use.

You don't need a client to put Buttondown to work: the same hosted connection plugs into your own applications and agent code, with the same governance on every request. Build with it, chat with it — one connection for both.

Observed, not estimated

952ms average. Fast in production.

Buttondown is checked daily against the live service.

Daily averagePeak 2930ms
Oct 3Today
Fastest day
734ms
Slowest day
2930ms
14-day trend
Slowing+186%

Connect your client

One URL. Every client.

Activate the Connector, copy your link, and paste it into the client you already use. 10 capabilities arrive ready to run.

Preview access · not provider authentication

The vk_preview_* token belongs to Vinkius preview infrastructure. It lets Claude discover and display the capabilities of Buttondown, so you can see the experience inside your AI.

It does not authenticate your account with Buttondown. Actions requiring credentials or live account data may not run until you activate the Connector and authorize the service.

Buttondown Connector

You're all set. Choose your MCP client and follow the setup instructions.

Connector linkhttps://edge.vinkius.com/vk_preview_H5jp49jxICVvescG3JJa5NtO5fbjsEAjNsBlEVOq/mcp

Claude Desktop

Follow the steps below to connect in seconds.

  1. 1In Claude Desktop, open Settings → Connectors.
  2. 2Click “Add custom connector” and paste the connector link above as the remote MCP server URL.
  3. 3Click Add and start a new chat — Buttondown capabilities are ready to use.
Configuration · claude_desktop_config.jsonCopy
{
  "mcpServers": {
    "buttondown-mcp": {
      "url": "https://edge.vinkius.com/vk_preview_H5jp49jxICVvescG3JJa5NtO5fbjsEAjNsBlEVOq/mcp"
    }
  }
}
  • Claude
  • ChatGPT
  • Cursor
  • VS Code
  • Windsurf
  • Claude Code
  • JetBrains
  • Cline

Step-by-step instructions for each client are in the guide. How to connect

Guided setup for Claude? Set up Buttondown in Claude and other AIs

See all the AI clients this connector works with ↑

Who it's for

Built for the work Buttondown owners hand off.

This MCP is built for people who run email-based content and want to stay in their flow.

  • 01

    Writers

    They use the agent to check subscriber counts or draft updates without leaving their writing environment.

  • 02

    Marketers

    They hand off the task of pulling email performance metrics and managing audience tags to the agent.

  • 03

    Developers

    They use the agent to trigger newsletter and campaign actions through natural language.

FAQ

Questions Buttondown owners ask.

  • 01

    How do I connect my Buttondown account?

    You subscribe to the MCP on Vinkius and then enter your Buttondown API Key. Once connected, it's ready to use in your AI client.

  • 02

    Which AI clients can I use with this MCP?

    You can use any MCP-compatible client, including Claude, Cursor, Windsurf, and VS Code.

  • 03

    Can I create actual emails or just drafts?

    The MCP allows you to create both new emails and drafts directly through your agent.

  • 04

    Can I see how many people opened my email?

    Yes, you can ask your agent to retrieve analytics for specific emails, which includes open and click rates.

  • 05

    Do I need to use the Buttondown website to manage tags?

    No, you can list and manage your subscriber tags using the capabilities provided by this MCP.

  • 06

    Can I check the open rate for a specific email using the agent?

    Yes! Use the get_email_analytics capability with the Email ID. Your agent will fetch the detailed statistics, including deliveries, opens, and clicks, directly from Buttondown.

  • 07

    How do I add a new subscriber with a specific tag?

    Simply ask the agent to create_subscriber and provide the email address and a JSON array of tags, for example: ["customer", "api-lead"]. The subscriber will be added to Buttondown instantly.

  • 08

    Does the integration allow creating a new draft email?

    Yes. Use the create_email action and set the status to draft. You can provide the subject and the body in markdown format, and it will appear in your Buttondown account ready for review.

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