Where do I find my Plunk Secret Key?

Log in to your [**Plunk Dashboard**](https://app.useplunk.com/), navigate to project settings, and you will find your Secret Key under the API section. It typically starts with `sk_`.

Can I send bulk newsletters with this agent?

This integration is optimized for transactional emails and event tracking. For large-scale bulk newsletters, we recommend using the Plunk dashboard or their specialized campaign endpoints for maximum deliverability and compliance.

Plunk Email Marketing MCP Server for Google ADK 8 tools — connect in under 2 minutes

Name: Plunk Email Marketing
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 Plunk Email Marketing 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="plunk_email_marketing_agent",
    instruction=(
        "You help users interact with Plunk Email Marketing "
        "using 8 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 Plunk Email Marketing MCP Server

Connect your AI agent to Plunk, the versatile email marketing platform designed for developers. This integration allows you to manage your audience, send transactional messages, and track user behavioral events directly through natural conversation.

Google ADK natively supports Plunk Email Marketing 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

Audience Management — List, create, and update contacts in your Plunk database, including subscription states
Transactional Emails — Send HTML emails to users for notifications, alerts, or onboarding directly via the agent
Event Tracking — Log custom user actions to trigger automated workflows or segment your audience
Campaign & Template Oversight — List your saved templates and monitor the status of your marketing campaigns
Lifecycle Control — Seamlessly delete contacts or update metadata based on user feedback

The Plunk Email Marketing 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 Plunk Email Marketing to Google ADK via MCP

Follow these steps to integrate the Plunk Email Marketing 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 Plunk Email Marketing via MCP

Why Use Google ADK with the Plunk Email Marketing MCP Server

Google ADK provides unique advantages when paired with Plunk Email Marketing 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 Plunk Email Marketing

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 Plunk Email Marketing tools with BigQuery, Vertex AI, and Cloud Functions

Plunk Email Marketing + Google ADK Use Cases

Practical scenarios where Google ADK combined with the Plunk Email Marketing MCP Server delivers measurable value.

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

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

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

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

Plunk Email Marketing MCP Tools for Google ADK (8)

These 8 tools become available when you connect Plunk Email Marketing to Google ADK via MCP:

create_or_update_contact

Provide metadata as a JSON string if needed. Create a new contact or update an existing one

delete_contact

Permanently delete a contact from your audience

get_contact_details

Get comprehensive information for a specific contact

list_contacts

Retrieve all contacts in your Plunk audience

list_email_campaigns

Retrieve a list of all email marketing campaigns

list_email_templates

Retrieve a list of all saved email templates

send_transactional_email

Send a transactional email to one or more recipients

track_user_event

Provide data as a JSON string. Track a custom action performed by a user

Example Prompts for Plunk Email Marketing in Google ADK

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

"List all contacts in my Plunk audience."

"Send a welcome email to 'test@example.com'."

Troubleshooting Plunk Email Marketing MCP Server with Google ADK

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

McpToolset not found

Update: pip install --upgrade google-adk

Plunk Email Marketing + Google ADK FAQ

Common questions about integrating Plunk Email Marketing 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.