Which version of the Mailjet API does this server use?

This server uses Mailjet REST API v3 for resource management (contacts, lists, campaigns) and the modern v3.1 Send API for reliable email delivery.

Can I send bulk emails using the agent?

Yes, the `send_transactional_email` tool supports the full v3.1 structure, allowing you to include multiple message objects in a single call.

How do I find my API Key and Secret?

Log in to your Mailjet account and navigate to Account Settings > API Key Management to find or generate your credentials.

Mailjet MCP Server for Google ADK 8 tools — connect in under 2 minutes

Name: Mailjet
Availability: InStock
Author: Vinkius

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

Built by Vinkius GDPR 8 Tools SDK

Google Agent Development Kit (ADK) is Google's framework for building production AI agents. Add Mailjet 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

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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="mailjet_agent",
    instruction=(
        "You help users interact with Mailjet "
        "using 8 available tools."
    ),
    tools=[mcp_tools],
)

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* 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 Mailjet MCP Server

Connect your Mailjet account to any AI agent to automate your transactional messaging and email marketing workflows. This MCP server enables your agent to send emails using the v3.1 Send API, manage subscriber lists, and track campaign performance directly from natural language interfaces.

Google ADK natively supports Mailjet as an MCP tool provider. declare Vinkius Edge URL and the framework handles discovery, validation, and execution automatically. Combine 8 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

Transactional Delivery — Send single or batch emails with full support for HTML, attachments, and variables
Audience Management — List all contacts, create new subscriber records, and manage contact lists (address books)
Subscription Control — Add or remove contacts from specific lists and manage opt-in statuses programmatically
Campaign Tracking — List historical campaigns and retrieve real-time performance statistics (opens, clicks, bounces)
Metadata Oversight — Fetch detailed configuration and status for any campaign or subscriber collection

The Mailjet MCP Server exposes 8 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 Mailjet to Google ADK via MCP

Follow these steps to integrate the Mailjet 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 8 tools from Mailjet via MCP

Why Use Google ADK with the Mailjet MCP Server

Google ADK provides unique advantages when paired with Mailjet 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 Mailjet

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 Mailjet tools with BigQuery, Vertex AI, and Cloud Functions

Mailjet + Google ADK Use Cases

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

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

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

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

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

Mailjet MCP Tools for Google ADK (8)

These 8 tools become available when you connect Mailjet to Google ADK via MCP:

add_contact_to_list

Requires list ID and contact ID/Email. Subscribe a contact to a specific list

create_new_contact

Requires at least an Email address. Add a new contact to the database

get_campaign_details

Get details for a specific campaign

get_campaign_performance

Get performance statistics for a campaign

list_all_contacts

List all contacts in the Mailjet account

list_marketing_campaigns

List all campaigns

list_subscriber_lists

List all contact lists

send_transactional_email

Requires a JSON body matching Mailjet v3.1 Send API structure. Send an email using Mailjet Send API v3.1

Example Prompts for Mailjet in Google ADK

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

"Send a transactional email to 'passenger@example.com' with subject 'Boarding Pass'."

"List all active contact lists in my Mailjet account."

"Show performance stats for campaign ID '12345'."

Troubleshooting Mailjet MCP Server with Google ADK

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

McpToolset not found

Update: pip install --upgrade google-adk

Mailjet + Google ADK FAQ

Common questions about integrating Mailjet 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.