How to Use the Maropost MCP in OpenAI Agents SDK

Connect your OpenAI Agents SDK directly to Maropost to automate your email marketing and contact workflows with built-in guardrails.

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Connect Maropost MCP to OpenAI Agents SDK

Create your Vinkius account to connect Maropost to OpenAI Agents SDK 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 Maropost with OpenAI Agents SDK

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Validate contact creation in OpenAI Agents SDK

The `create_contact` tool lets your agent add or update subscriber records directly inside Maropost. Using the OpenAI Agents SDK, you can set strict validation parameters so the agent verifies email formats before making the API call. This prevents bad data from entering your lists. Your agent uses `get_contact` to check for existing records first, avoiding duplicate entries and saving on your subscriber tier costs.

Track campaigns using this MCP Server

The `get_campaign_details` tool retrieves real-time performance metrics for any specific marketing campaign. Your agent inspects open rates, click rates, and bounce metrics directly through the OpenAI dashboard. By combining this with `list_campaigns`, your agent analyzes historical trends across multiple runs. The agent runs these checks autonomously, flagging underperforming campaigns to your team over Slack.

Control Maropost workflows with OpenAI agents

The `list_workflows` tool exposes your active automated marketing journeys to the agent. The agent reads the structure of these journeys using `get_workflow_details` to determine where a user stands in a sequence. You can instruct the agent to move contacts between lists using `list_lists` and `list_contacts_in_list`. This keeps your automated email flows in sync with external CRM changes without manual data exports.

Setup guide

Set up Maropost MCP in OpenAI Agents SDK

Prerequisites

Python 3.10+ installed
openai-agents package (pip install openai-agents)
Active Vinkius subscription with a valid endpoint token

1

Install the SDK

Run pip install openai-agents to install the OpenAI Agents SDK. The MCP integration is built-in — no extra dependencies needed.
2

Connect via SSE transport

Use MCPServerSse with your Vinkius endpoint URL. Replace [YOUR_TOKEN_HERE] with your token from cloud.vinkius.com. The SDK auto-discovers all Maropost tools at runtime.
3

Create your Agent

Pass the MCP to Agent(mcp_servers=[server]). The agent receives Maropost tools as native definitions — JSON schemas resolve automatically.
4

Run the agent

Call Runner.run(agent, prompt) to execute. The agent invokes the appropriate Maropost tools and returns structured results. Copy the full example on the right to get started.

agent.py

import asyncio
from agents import Agent, Runner
from agents.mcp import MCPServerSse

async def main():
    async with MCPServerSse(
        url="https://edge.vinkius.com/[YOUR_TOKEN_HERE]/mcp"
    ) as server:
        agent = Agent(
            name="Maropost Agent",
            instructions="You have access to Maropost tools.",
            mcp_servers=[server],
        )
        result = await Runner.run(agent, "List recent transactions")
        print(result.final_output)

asyncio.run(main())

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Why Choose Vinkius

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Common questions about Maropost MCP in OpenAI Agents SDK

The SDK automatically maps the MCP Server endpoints during initialization. Your agent reads the tool schemas for `create_contact` and `list_lists` instantly, requiring no manual function writing.

Yes, you define allowed tools in the agent constructor. You can restrict the agent to only read data using `list_campaigns` while blocking write tools like `create_contact`.

Yes, you can route tasks between specialized agents. One agent can gather contact details using `get_contact`, then hand off the payload to a separate writing agent that runs `create_contact`.

You track every API request and tool execution directly inside the OpenAI developer dashboard. If `get_workflow_details` fails due to an expired ID, the dashboard shows the exact payload and error code.

Your subscriber emails and campaign reports stay protected because the server runs in an isolated V8 sandbox. No contact data is stored on Vinkius servers; it merely acts as a secure proxy passing encrypted payloads directly between your OpenAI runtime and the Maropost API.

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