4,000+ servers built on MCP Fusion
Vinkius
ClineIDE
Why use Buttondown MCP Server with Cline?

Bring Email Marketing
to Cline

Create your Vinkius account to connect Buttondown to Cline and start using all 10 AI tools in minutes. Fully managed, enterprise secure, and ready to use without writing a single line of code. No hosting, no server setup — just connect and start using.

MCP Inspector GDPR Free for Subscribers
Create EmailCreate SubscriberGet Account InfoGet EmailGet Email AnalyticsGet SubscriberList EmailsList NewslettersList SubscribersList Tags
ChatGPT Claude Perplexity

Compatible with every major AI agent and IDE

ClaudeClaude
ChatGPTChatGPT
CursorCursor
GeminiGemini
WindsurfWindsurf
VS CodeVS Code
JetBrainsJetBrains
VercelVercel
+ other MCP clients
Buttondown

What is the Buttondown MCP Server?

Connect your Buttondown account to any AI agent and orchestrate your newsletter, subscriber management, and email campaigns through natural conversation.

What you can do

  • Subscriber Oversight — List all your subscribers and retrieve detailed profiles, including metadata and tags.
  • Email Management — List all sent emails and drafts, and create new campaigns or drafts directly from your workspace.
  • Analytics Tracking — Retrieve detailed analytics for specific emails, including open and click rates.
  • Segment Coordination — Access and list your tags to ensure your audience is properly categorized.
  • Newsletter Access — List all newsletters managed in your account and access your core profile settings.
  • Subscriber Growth — Add new subscribers directly from your workspace with custom tags and metadata.

How it works

  1. Subscribe to this server
  2. Enter your Buttondown API Key
  3. Start managing your newsletter from Claude, Cursor, or any MCP-compatible client

Who is this for?

  • Writers & Content Creators — quickly check subscriber counts or draft new updates without manual dashboard work.
  • Marketers — retrieve email performance metrics and manage audience tags straight from their workflow tools.
  • Developers — integrate newsletter subscription and campaign steps into their environment using natural language.

Built-in capabilities (10)

create_email

Create a new email or draft

create_subscriber

Add a new subscriber to the newsletter

get_account_info

Retrieve core account/profile settings

get_email

Get details of a specific email

get_email_analytics

Get analytics for a specific email

get_subscriber

Get details of a specific subscriber

list_emails

List all sent emails and drafts

list_newsletters

List all newsletters in the account

list_subscribers

List all newsletter subscribers

list_tags

List all subscriber tags

Why Cline?

Cline operates autonomously inside VS Code. it reads your codebase, plans a strategy, and executes multi-step tasks including Buttondown tool calls without waiting for prompts between steps. Connect 10 tools through Vinkius and Cline can fetch data, generate code, and commit changes in a single autonomous run.

  • Cline operates autonomously. it reads your codebase, plans a strategy, and executes multi-step tasks including MCP tool calls without step-by-step prompts

  • Runs inside VS Code, so you get MCP tool access alongside your existing extensions, terminal, and version control in a single window

  • Cline can create, edit, and delete files based on MCP tool responses, enabling end-to-end automation from data retrieval to code generation

  • Transparent execution: every tool call and file change is shown in Cline's activity log for full visibility and approval before committing

See it in action

Buttondown in Cline

AI AgentVinkius
High Security·Kill Switch·Plug and Play
Enterprise Security

Why run Buttondown with Vinkius?

The Buttondown connection runs on our fully managed, secure cloud infrastructure. We handle the hosting, maintenance, and security so you don't have to deal with servers or code. All 10 tools are ready to work instantly without any complex setup.

You stay in complete control of your data. Your AI only accesses the information you approve, keeping your sensitive passwords and private details completely safe. Plus, with automatic optimizations, your AI works faster and more efficiently.

Buttondown
Fully ManagedNo server setup
Plug & PlayNo coding needed
SecurePrivacy protected
PrivateYour data is safe
Cost ControlBudget limits
Control1-click disconnect
Auto-UpdatesMaintenance free
High SpeedOptimized for AI
Reliable99.9% uptime
Your credentials and connection tokens are fully encrypted

* Every connection is hosted and maintained by Vinkius. We handle the security, updates, and infrastructure so you don't have to write code or manage servers. See our infrastructure

01 / Catalog

Over 4,000 integrations ready for AI agents

Explore a vast library of pre-built integrations, optimized and ready to deploy.

02 / Credentials

Connect securely in under 30 seconds

Generate tokens to authenticate and link external services in a single step.

03 / Guardian

Complete visibility into every agent action

Audit live requests, latency, success rates, and active security compliance policies.

04 / FinOps

Optimize spending and track token ROI

Analyze real-time token consumption and cost metrics detailed by connection.

Over 4,000 integrations ready for AI agents
Connect securely in under 30 seconds
Complete visibility into every agent action
Optimize spending and track token ROI

Explore our live AI Agents Analytics dashboard to see it all working

This dashboard is included when you connect Buttondown using Vinkius. You will never be left in the dark about what your AI agents are doing with your tools.

Why Vinkius

Buttondown and 4,000+ other AI tools. No hosting, no code, ready to use.

Professionals who connect Buttondown to Cline through Vinkius don't need to write code, manage servers, or worry about security. Everything is pre-configured, secure, and runs automatically in the background.

4,000+MCP Integrations
<40msResponse time
100%Fully managed
Raw MCP
Vinkius
Ready-to-use MCPsFind and configure each manually4,000+ MCPs ready to use
Connection SetupManual coding & server setup1-click instant connection
Server HostingYou host it yourself (needs 24/7 uptime)100% hosted & managed by Vinkius
Security & PrivacyStored in plaintext config filesBank-grade encrypted vault
Activity VisibilityBlind execution (no logs or tracking)Live dashboard with real-time logs
Cost ControlRunaway AI token spend riskAutomatic budget limits
Revoking AccessMust delete files or code to stop1-click disconnect button
The Vinkius Advantage

How Vinkius secures Buttondown for Cline

Every request between Cline and Buttondown is protected by our secure gateway. We automatically keep your sensitive data private, prevent unauthorized access, and let you disconnect instantly at any time.

< 40msCold start
Ed25519Signed audit chain
60%Token savings
FAQ

Frequently asked questions

01

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

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

02

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.

03

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.

04

How does Cline connect to MCP servers?

Cline reads MCP server configurations from its settings panel in VS Code. Add the server URL and Cline discovers all available tools on initialization.

05

Can Cline run MCP tools without approval?

By default, Cline asks for confirmation before executing tool calls. You can configure auto-approval rules for trusted servers in the settings.

06

Does Cline support multiple MCP servers at once?

Yes. Configure as many servers as needed. Cline can use tools from different servers within the same autonomous task execution.

07

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Click the server name to see logs. Verify the URL and token are correct.

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