How do I find my Maropost Account ID?

Your Account ID is the numeric ID found in your Maropost login URL or in your account settings.

Where do I find my Auth Token?

Go to Maropost Settings > API to generate and copy your Auth Token.

Is my data secure with this integration?

Yes. Your credentials are encrypted at rest and injected securely at runtime.

Maropost MCP Server for LangChain 11 tools — connect in under 2 minutes

Name: Maropost
Availability: InStock
Author: Vinkius

python.langchain.com/docs/integrations/tools/mcp

Built by Vinkius GDPR 11 Tools Framework

LangChain is the leading Python framework for composable LLM applications. Connect Maropost through Vinkius and LangChain agents can call every tool natively. combine them with retrievers, memory, and output parsers for sophisticated AI pipelines.

Get MCP Server for AI Agents

ASK AI ABOUT THIS MCP SERVER

Open in ChatGPT Open in Claude Open in Perplexity

Vinkius supports streamable HTTP and SSE.

python

import asyncio
from langchain_mcp_adapters.client import MultiServerMCPClient
from langchain_openai import ChatOpenAI
from langgraph.prebuilt import create_react_agent

async def main():
    # Your Vinkius token. get it at cloud.vinkius.com
    async with MultiServerMCPClient({
        "maropost": {
            "transport": "streamable_http",
            "url": "https://edge.vinkius.com/[YOUR_TOKEN_HERE]/mcp",
        }
    }) as client:
        tools = client.get_tools()
        agent = create_react_agent(
            ChatOpenAI(model="gpt-4o"),
            tools,
        )
        response = await agent.ainvoke({
            "messages": [{
                "role": "user",
                "content": "Using Maropost, show me what tools are available.",
            }]
        })
        print(response["messages"][-1].content)

asyncio.run(main())

Fully ManagedVinkius Servers

60%Token savings

High SecurityEnterprise-grade

IAMAccess control

EU AI ActCompliant

DLPData protection

V8 IsolateSandboxed

Ed25519Audit chain

<40msKill switch

Stream every event to Splunk, Datadog, or your own webhook in real-time

* 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

About Maropost MCP Server

Connect your Maropost account to any AI agent and take full control of your marketing automation through natural conversation.

LangChain's ecosystem of 500+ components combines seamlessly with Maropost through native MCP adapters. Connect 11 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.

What you can do

Contact Management — Get contact details, list contacts in specific lists, and create/update records
Campaign Management — List all campaigns and fetch detailed configuration and status
List Management — Query contact lists and their specific details
Automation & Reports — Access workflows and retrieve detailed performance reports

The Maropost MCP Server exposes 11 tools through the Vinkius. Connect it to LangChain in under two minutes — no API keys to rotate, no infrastructure to provision, no vendor lock-in. Your configuration, your data, your control.

How to Connect Maropost to LangChain via MCP

Follow these steps to integrate the Maropost MCP Server with LangChain.

Install dependencies

Run pip install langchain langchain-mcp-adapters langgraph langchain-openai

Replace the token

Replace [YOUR_TOKEN_HERE] with your Vinkius token

Run the agent

Save the code and run python agent.py

Explore tools

The agent discovers 11 tools from Maropost via MCP

Why Use LangChain with the Maropost MCP Server

LangChain provides unique advantages when paired with Maropost through the Model Context Protocol.

The largest ecosystem of integrations, chains, and agents. combine Maropost MCP tools with 500+ LangChain components

Agent architecture supports ReAct, Plan-and-Execute, and custom strategies with full MCP tool access at every step

LangSmith tracing gives you complete visibility into tool calls, latencies, and token usage for production debugging

Memory and conversation persistence let agents maintain context across Maropost queries for multi-turn workflows

Maropost + LangChain Use Cases

Practical scenarios where LangChain combined with the Maropost MCP Server delivers measurable value.

RAG with live data: combine Maropost tool results with vector store retrievals for answers grounded in both real-time and historical data

Autonomous research agents: LangChain agents query Maropost, synthesize findings, and generate comprehensive research reports

Multi-tool orchestration: chain Maropost tools with web scrapers, databases, and calculators in a single agent run

Production monitoring: use LangSmith to trace every Maropost tool call, measure latency, and optimize your agent's performance

Maropost MCP Tools for LangChain (11)

These 11 tools become available when you connect Maropost to LangChain via MCP:

create_contact

Create or update a contact

get_campaign_details

Get campaign details by ID

get_contact

Get contact details by email

get_list_details

Get list details by ID

get_report_details

Get report details by ID

get_workflow_details

Get workflow details by ID

list_campaigns

List all campaigns

list_contacts_in_list

List contacts in a specific list

list_lists

List all contact lists

list_reports

List all reports

list_workflows

List all workflows

Example Prompts for Maropost in LangChain

Ready-to-use prompts you can give your LangChain agent to start working with Maropost immediately.

"Find contact details for john.doe@example.com."

"List all active campaigns in Maropost."

"Show performance report for campaign ID 987."

Troubleshooting Maropost MCP Server with LangChain

Common issues when connecting Maropost to LangChain through the Vinkius, and how to resolve them.

MultiServerMCPClient not found

Install: pip install langchain-mcp-adapters

Maropost + LangChain FAQ

Common questions about integrating Maropost MCP Server with LangChain.

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.