Compatible with every major AI agent and IDE
What is the Listmonk MCP Server?
Connect your Listmonk instance to any AI agent and take full control of your email marketing workflows through natural conversation.
What you can do
- Subscriber Management — List, create, update, or delete subscribers using SQL-like queries for precise filtering via
list_subscribersandcreate_subscriber. - List Organization — Manage your mailing lists and public subscriptions to keep your audience segmented using
list_listsandcreate_list. - Campaign Control — Create, monitor, and update the status of your email campaigns from draft to sent with
create_campaignandupdate_campaign_status. - Transactional Emails — Send high-priority transactional messages instantly via the
send_transactionaltool. - Media & Templates — Manage your asset library and email templates without leaving your chat interface using
list_templatesandlist_media.
How it works
- Subscribe to this server
- Enter your Listmonk URL and API Token
- Start managing your newsletters from Claude, Cursor, or any MCP-compatible client
Who is this for?
- Marketers — quickly segment audiences and check campaign performance without opening the dashboard.
- Developers — integrate transactional emails and manage subscribers directly from the terminal or IDE.
- Content Creators — organize newsletter lists and templates with ease through simple commands.
Built-in capabilities (28)
Create a new campaign
Create a new list
Create a public subscription
Create a new subscriber
Create a template
Delete multiple bounce records
Delete a campaign
Delete a list
Delete a media file
Delete a specific subscriber
Delete a template
Retrieve a specific campaign
Retrieve import status
Retrieve a specific subscriber
Retrieve bounce records
Retrieve all campaigns
Retrieve all lists
Get uploaded media files
Retrieve public lists
Supports pagination, list filtering, and SQL expression search. Query and retrieve subscribers
Retrieve all templates
Partially update a subscriber
Send transactional messages to one or more subscribers using a template
Stop an ongoing import
Change campaign status
Update a list
Update a specific subscriber
Update a template
Why OpenAI Agents SDK?
The OpenAI Agents SDK auto-discovers all 28 tools from Listmonk through native MCP integration. Build agents with built-in guardrails, tracing, and handoff patterns. chain multiple agents where one queries Listmonk, another analyzes results, and a third generates reports, all orchestrated through Vinkius.
- —
Native MCP integration via
MCPServerSse, pass the URL and the SDK auto-discovers all tools with full type safety - —
Built-in guardrails, tracing, and handoff patterns let you build production-grade agents without reinventing safety infrastructure
- —
Lightweight and composable: chain multiple agents and MCP servers in a single pipeline with minimal boilerplate
- —
First-party OpenAI support ensures optimal compatibility with GPT models for tool calling and structured output
Listmonk in OpenAI Agents SDK
Listmonk and 4,000+ other MCP servers. One platform. One governance layer.
Teams that connect Listmonk to OpenAI Agents SDK through Vinkius don't need to source, host, or maintain individual MCP servers. Every tool call runs inside a hardened runtime with credential isolation, DLP, and a signed audit chain.
Raw MCP | Vinkius | |
|---|---|---|
| Server catalog | Find and host yourself | 4,000+ managed |
| Infrastructure | Self-hosted | Sandboxed V8 isolates |
| Credential handling | Plaintext in config | Vault + runtime injection |
| Data loss prevention | None | Configurable DLP policies |
| Kill switch | None | Global instant shutdown |
| Financial circuit breakers | None | Per-server limits + alerts |
| Audit trail | None | Ed25519 signed logs |
| SIEM log streaming | None | Splunk, Datadog, Webhook |
| Honeytokens | None | Canary alerts on leak |
| Custom domains | Not applicable | DNS challenge verified |
| GDPR compliance | Manual effort | Automated purge + export |
Why teams choose Vinkius for Listmonk in OpenAI Agents SDK
The Listmonk MCP Server runs on Vinkius-managed infrastructure inside AWS — a purpose-built runtime with per-request V8 isolates, Ed25519 signed audit chains, and sub-40ms cold starts. All 28 tools execute in hardened sandboxes optimized for native MCP execution.
Your AI agents in OpenAI Agents SDK only access the data you authorize, with DLP that blocks sensitive information from ever reaching the model, kill switch for instant shutdown, and up to 60% token savings. Enterprise-grade infrastructure, zero maintenance.

* Every MCP server runs on Vinkius-managed infrastructure inside AWS - a purpose-built runtime with per-request V8 isolates, Ed25519 signed audit chains, and sub-40ms cold starts optimized for native MCP execution. See our infrastructure
How Vinkius secures
Listmonk for OpenAI Agents SDK
Every tool call from OpenAI Agents SDK to the Listmonk MCP Server is protected by DLP redaction, cryptographic audit chains, V8 sandbox isolation, kill switch, and financial circuit breakers.
Frequently asked questions
Can I search for subscribers using specific SQL-like attributes?
Yes! Use the list_subscribers tool with the query parameter. You can use SQL expressions to filter by attributes, names, or email patterns directly through the agent.
How do I send a one-off transactional email to a user?
Use the send_transactional action. You just need to provide the subscriber's email or ID and the template ID you wish to use for the message.
Can I stop an ongoing subscriber import if I notice an error?
Absolutely. Use the stop_import tool to immediately halt any active subscriber import process in your Listmonk instance.
How does the OpenAI Agents SDK connect to MCP?
Use MCPServerSse(url=...) to create a server connection. The SDK auto-discovers all tools and makes them available to your agent with full type information.
Can I use multiple MCP servers in one agent?
Yes. Pass a list of MCPServerSse instances to the agent constructor. The agent can use tools from all connected servers within a single run.
Does the SDK support streaming responses?
Yes. The SDK supports SSE and Streamable HTTP transports, both of which work natively with Vinkius.
MCPServerStreamableHttp not found
Ensure you have the latest version: pip install --upgrade openai-agents
Agent not calling tools
Make sure your prompt explicitly references the task the tools can help with.
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