How do I get an API Key for Freshmarketer?

Log in to your Freshmarketer account, go to Settings (gear icon), and select API Settings to generate or view your API Key.

What is my 'Domain prefix'?

Your domain prefix is the first part of your Freshmarketer URL (e.g. if your URL is 'acme.freshmarketer.com', the prefix is 'acme').

Can I send a one-off transactional email through the agent?

Yes, use the 'send_transactional_email' tool and provide the recipient's email and the Campaign ID configured in your account.

How do I trigger an automation journey via chat?

Use the 'post_custom_event' tool to log an event for a specific contact. If a journey is configured to start on that event, it will trigger automatically.

Freshmarketer MCP Server for LangChain 10 tools — connect in under 2 minutes

Name: Freshmarketer
Availability: InStock
Author: Vinkius

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

Built by Vinkius GDPR 10 Tools Framework

LangChain is the leading Python framework for composable LLM applications. Connect Freshmarketer 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({
        "freshmarketer": {
            "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 Freshmarketer, show me what tools are available.",
            }]
        })
        print(response["messages"][-1].content)

asyncio.run(main())

Fully ManagedVinkius Servers

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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 Freshmarketer MCP Server

Connect your Freshmarketer account (part of the Freshsales Suite) to any AI agent to automate your marketing operations through the Model Context Protocol (MCP). Freshmarketer helps you engage your audience with personalized email campaigns and automated journeys. This MCP server enables you to manage your contact database, organize mailing lists, and trigger transactional emails directly through natural conversation.

LangChain's ecosystem of 500+ components combines seamlessly with Freshmarketer through native MCP adapters. Connect 10 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.

Key Features

Contact Management — List all marketing contacts, retrieve detailed profiles, and create or update contacts instantly.
Audience Segmentation — Access and list your configured mailing lists to understand how your audience is segmented.
Transactional Emails — Trigger specific transactional campaigns to individual contacts directly from the chat interface.
Journey Insights — Monitor your active and paused marketing automation journeys.
Event Tracking — Post custom events to a contact's timeline to programmatically trigger specific automation flows.
Real-time Data Sync — Keep your marketing data synchronized with your CRM seamlessly.

The Freshmarketer MCP Server exposes 10 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 Freshmarketer to LangChain via MCP

Follow these steps to integrate the Freshmarketer 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 10 tools from Freshmarketer via MCP

Why Use LangChain with the Freshmarketer MCP Server

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

The largest ecosystem of integrations, chains, and agents. combine Freshmarketer 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 Freshmarketer queries for multi-turn workflows

Freshmarketer + LangChain Use Cases

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

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

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

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

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

Freshmarketer MCP Tools for LangChain (10)

These 10 tools become available when you connect Freshmarketer to LangChain via MCP:

check_account_status

Verify API status

create_mailing_list

Create new mailing list

get_contact_details

Get contact metadata

list_contacts

List marketing contacts

list_custom_events

List configured events

list_journeys

List marketing journeys

list_mailing_lists

List mailing lists

post_custom_event

Trigger custom event

send_transactional_email

Trigger an email

upsert_contact

Create or update contact

Example Prompts for Freshmarketer in LangChain

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

"List my 5 most recent marketing contacts."

"Show me all active mailing lists in my account."

"Trigger the 'Welcome Email' (Campaign ID: 123) for 'newuser@example.com'."

Troubleshooting Freshmarketer MCP Server with LangChain

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

MultiServerMCPClient not found

Install: pip install langchain-mcp-adapters

Freshmarketer + LangChain FAQ

Common questions about integrating Freshmarketer 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.