Bring Newsletter Dispatch
to LangChain
Create your Vinkius account to connect Maileon to LangChain and start using all 9 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.
GDPR Free for SubscribersCompatible with every major AI agent and IDE
Gemini
What is the Maileon MCP Server?
Connect your Maileon account to any AI agent to automate your professional email marketing and audience management. This MCP server enables your agent to manage subscribers, control mailing lifecycles, and retrieve detailed performance statistics directly from natural language interfaces.
What you can do
- Contact Management — List all subscribers, retrieve complete profiles by email, and manage opt-ins and opt-outs
- Mailing Control — Monitor your email campaigns (mailings), retrieve metadata, and trigger official dispatches when ready
- Real-time Reporting — Retrieve KPIs and statistics for individual mailings, including opens, clicks, and bounces
- Audience Hygiene — Monitor unsubscription events and permanently remove contacts to maintain list quality
- Data Ingestion — Create and update subscriber records programmatically to sync with your external CRMs
How it works
- Subscribe to this server
- Enter your Maileon REST API Key
- Start managing your email marketing from Claude, Cursor, or any MCP-compatible client
Who is this for?
- CRM Managers — Monitor campaign statuses and manage subscriber lists via simple natural language commands
- Marketing Operations — Quickly check mailing performance and manage contact updates without opening the portal
- Developers — Integrate Maileon's advanced mailing logic and reporting into your custom internal tools
Built-in capabilities (9)
Can trigger a Double Opt-In process if configured. Add or update a contact in the database
Remove a contact from the account
The mailing must be in a ready state. Trigger the dispatch of a mailing
Get details for a specific contact
Get details for a specific mailing
Get performance statistics for a mailing
Use optional params for filtering. List all contacts in the Maileon account
Use optional params to filter by state (e.g., "state=draft"). List all mailings (campaigns)
List recent unsubscription events
Why LangChain?
LangChain's ecosystem of 500+ components combines seamlessly with Maileon through native MCP adapters. Connect 9 tools via Vinkius and use ReAct agents, Plan-and-Execute strategies, or custom agent architectures. with LangSmith tracing giving full visibility into every tool call, latency, and token cost.
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The largest ecosystem of integrations, chains, and agents. combine Maileon MCP tools with 500+ LangChain components
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Agent architecture supports ReAct, Plan-and-Execute, and custom strategies with full MCP tool access at every step
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LangSmith tracing gives you complete visibility into tool calls, latencies, and token usage for production debugging
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Memory and conversation persistence let agents maintain context across Maileon queries for multi-turn workflows
Maileon in LangChain
Why run Maileon with Vinkius?
The Maileon 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 9 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.
* 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
Over 4,000 integrations ready for AI agents
Explore a vast library of pre-built integrations, optimized and ready to deploy.
Connect securely in under 30 seconds
Generate tokens to authenticate and link external services in a single step.
Complete visibility into every agent action
Audit live requests, latency, success rates, and active security compliance policies.
Optimize spending and track token ROI
Analyze real-time token consumption and cost metrics detailed by connection.
Explore our live AI Agents Analytics dashboard to see it all working
This dashboard is included when you connect Maileon using Vinkius. You will never be left in the dark about what your AI agents are doing with your tools.
Maileon and 4,000+ other AI tools. No hosting, no code, ready to use.
Professionals who connect Maileon to LangChain 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.
Raw MCP | Vinkius | |
|---|---|---|
| Ready-to-use MCPs | Find and configure each manually | 4,000+ MCPs ready to use |
| Connection Setup | Manual coding & server setup | 1-click instant connection |
| Server Hosting | You host it yourself (needs 24/7 uptime) | 100% hosted & managed by Vinkius |
| Security & Privacy | Stored in plaintext config files | Bank-grade encrypted vault |
| Activity Visibility | Blind execution (no logs or tracking) | Live dashboard with real-time logs |
| Cost Control | Runaway AI token spend risk | Automatic budget limits |
| Revoking Access | Must delete files or code to stop | 1-click disconnect button |
How Vinkius secures
Maileon for LangChain
Every request between LangChain and Maileon is protected by our secure gateway. We automatically keep your sensitive data private, prevent unauthorized access, and let you disconnect instantly at any time.
Frequently asked questions
How do I find my Maileon API Key?
Log in to your Maileon account and navigate to Settings > API to generate and copy your unique REST API Key.
What is the difference between a Mailing and a Campaign?
In Maileon terminology, a 'Mailing' refers to a specific email send-out, which is the standard entity managed via the campaigns tools in this server.
Can I filter contacts by specific attributes?
Yes, you can provide filtering strings in the params field of the list_account_contacts tool following the Maileon query syntax.
How does LangChain connect to MCP servers?
Use langchain-mcp-adapters to create an MCP client. LangChain discovers all tools and wraps them as native LangChain tools compatible with any agent type.
Which LangChain agent types work with MCP?
All agent types including ReAct, OpenAI Functions, and custom agents work with MCP tools. The tools appear as standard LangChain tools after the adapter wraps them.
Can I trace MCP tool calls in LangSmith?
Yes. All MCP tool invocations appear as traced steps in LangSmith, showing input parameters, response payloads, latency, and token usage.
MultiServerMCPClient not found
Install: pip install langchain-mcp-adapters
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