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.

Maileon MCP Server for Google ADK 9 tools — connect in under 2 minutes

Name: Maileon
Availability: InStock
Author: Vinkius

google.github.io/adk-docs/tools/mcp-tools

Built by Vinkius GDPR 9 Tools SDK

Google Agent Development Kit (ADK) is Google's framework for building production AI agents. Add Maileon as an MCP tool provider through Vinkius and your ADK agents can call every tool with full schema introspection.

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

from google.adk.agents import Agent
from google.adk.tools.mcp_tool import McpToolset
from google.adk.tools.mcp_tool.mcp_session_manager import (
    StreamableHTTPConnectionParams,
)

# Your Vinkius token. get it at cloud.vinkius.com
mcp_tools = McpToolset(
    connection_params=StreamableHTTPConnectionParams(
        url="https://edge.vinkius.com/[YOUR_TOKEN_HERE]/mcp",
    )
)

agent = Agent(
    model="gemini-2.5-pro",
    name="maileon_agent",
    instruction=(
        "You help users interact with Maileon "
        "using 9 available tools."
    ),
    tools=[mcp_tools],
)

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 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.

Google ADK natively supports Maileon as an MCP tool provider. declare Vinkius Edge URL and the framework handles discovery, validation, and execution automatically. Combine 9 tools with Gemini's long-context reasoning for complex multi-tool workflows, with production-ready session management and evaluation built in.

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

The Maileon MCP Server exposes 9 tools through the Vinkius. Connect it to Google ADK 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 Maileon to Google ADK via MCP

Follow these steps to integrate the Maileon MCP Server with Google ADK.

Install Google ADK

Run pip install google-adk

Replace the token

Replace [YOUR_TOKEN_HERE] with your Vinkius token

Create the agent

Save the code above and integrate into your ADK workflow

Explore tools

The agent will discover 9 tools from Maileon via MCP

Why Use Google ADK with the Maileon MCP Server

Google ADK provides unique advantages when paired with Maileon through the Model Context Protocol.

Google ADK natively supports MCP tool servers. declare a tool provider and the framework handles discovery, validation, and execution

Built on Gemini models, ADK provides long-context reasoning ideal for complex multi-tool workflows with Maileon

Production-ready features like session management, evaluation, and deployment come built-in. not bolted on

Seamless integration with Google Cloud services means you can combine Maileon tools with BigQuery, Vertex AI, and Cloud Functions

Maileon + Google ADK Use Cases

Practical scenarios where Google ADK combined with the Maileon MCP Server delivers measurable value.

Enterprise data agents: ADK agents query Maileon and cross-reference results with internal databases for comprehensive analysis

Multi-modal workflows: combine Maileon tool responses with Gemini's vision and language capabilities in a single agent

Automated compliance checks: schedule ADK agents to query Maileon regularly and flag policy violations or configuration drift

Internal tool platforms: build self-service agent platforms where teams connect their own MCP servers including Maileon

Maileon MCP Tools for Google ADK (9)

These 9 tools become available when you connect Maileon to Google ADK via MCP:

create_new_contact

Can trigger a Double Opt-In process if configured. Add or update a contact in the database

delete_account_contact

Remove a contact from the account

dispatch_email_mailing

The mailing must be in a ready state. Trigger the dispatch of a mailing

get_contact_by_email

Get details for a specific contact

get_mailing_details

Get details for a specific mailing

get_mailing_statistics

Get performance statistics for a mailing

list_account_contacts

Use optional params for filtering. List all contacts in the Maileon account

list_email_mailings

Use optional params to filter by state (e.g., "state=draft"). List all mailings (campaigns)

list_unsubscription_events

List recent unsubscription events

Example Prompts for Maileon in Google ADK

Ready-to-use prompts you can give your Google ADK agent to start working with Maileon immediately.

"List all active mailings in my Maileon account."

"Get the latest statistics for mailing ID '12345'."

"Add 'new-user@example.com' to my Maileon contacts."

Troubleshooting Maileon MCP Server with Google ADK

Common issues when connecting Maileon to Google ADK through the Vinkius, and how to resolve them.

McpToolset not found

Update: pip install --upgrade google-adk

Maileon + Google ADK FAQ

Common questions about integrating Maileon MCP Server with Google ADK.

How does Google ADK connect to MCP servers?

Import the MCP toolset class and pass the server URL. ADK discovers and registers all tools automatically, making them available to your agent's tool-use loop.

Can ADK agents use multiple MCP servers?

Yes. Declare multiple MCP tool providers in your agent configuration. ADK merges all tool schemas and the agent can call tools from any server in a single turn.

Which Gemini models work best with MCP tools?

Gemini 2.0 Flash and Pro models both support function calling required for MCP tools. Flash is recommended for latency-sensitive use cases, Pro for complex reasoning.