Postmark MCP Server for Google ADKGive Google ADK instant access to 11 tools to Get Delivery Stats, Get Outbound Stats, Get Server Info, and more

Name: Postmark
Price: 29 USD
Availability: InStock
Rating: 5.0 (1 reviews)
Author: Vinkius

GDPR Free for Subscribers

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

Ask AI about this MCP Server for Google ADK

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The Postmark MCP Server for Google ADK is a standout in the Developer Tools category — giving your AI agent 11 tools to work with, ready to go from day one.

Built for AI Agents by Vinkius

Vinkius delivers Streamable HTTP and SSE to any MCP client

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ChatGPT

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Gemini

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VS Code

JetBrains

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+ other MCP clients

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="postmark_extended_agent",
    instruction=(
        "You help users interact with Postmark "
        "using 11 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 Postmark MCP Server

Connect your Postmark account to any AI agent and simplify your transactional email management, deliverability tracking, and template orchestration through natural conversation.

Google ADK natively supports Postmark as an MCP tool provider. declare Vinkius Edge URL and the framework handles discovery, validation, and execution automatically. Combine 11 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

Email Delivery — Send single or bulk transactional emails programmatically directly from your agent using verified signatures
Template Management — Query and manage your catalog of email templates to ensure consistent messaging across your server
Bounce Tracking — Access a history of bounced emails and monitor deliverability issues in real-time
Server & Account Control — List and manage your Postmark servers and account settings programmatically
Engagement Insights — Access aggregate performance analytics, including sent and open metrics

The Postmark MCP Server exposes 11 tools through the Vinkius. Connect it to Google ADK in under two minutes — credentials fully managed, no infrastructure to provision, no vendor lock-in. Your configuration, your data, your control.

All 11 Postmark tools available for Google ADK

When Google ADK connects to Postmark through Vinkius, your AI agent gets direct access to every tool listed below — spanning transactional-email, email-delivery, template-management, and more. Every call runs in a secure, isolated environment with full audit visibility. Beyond a simple connection, you get real-time monitoring of agent activity, enterprise governance, and optimized token usage.

get

Get delivery stats on Postmark

Get email delivery statistics

get

Get outbound stats on Postmark

Get outbound delivery stats

get

Get server info on Postmark

Get Postmark server configuration

get

Get template on Postmark

Get details for a specific email template

list

List account servers on Postmark

List account servers

list

List bounces on Postmark

List recent email bounces

list

List domains on Postmark

List all verified sending domains

list

List email templates on Postmark

List email templates

list

List outbound messages on Postmark

List sent messages

send

Send batch email on Postmark

Send emails in batch

send

Send email on Postmark

Send a single email

Connect Postmark to Google ADK via MCP

Follow these steps to wire Postmark into Google ADK. The entire setup takes under two minutes — your credentials stay safe behind Vinkius.

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 11 tools from Postmark via MCP

Why Use Google ADK with the Postmark MCP Server

Google ADK provides unique advantages when paired with Postmark 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 Postmark

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 Postmark tools with BigQuery, Vertex AI, and Cloud Functions

Postmark + Google ADK Use Cases

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

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

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

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

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

Example Prompts for Postmark in Google ADK

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

"Send a transactional email from support@example.com to john@doe.com with subject 'Reset Password'."

"Show me all email bounces from the last 7 days and identify the main failure patterns."

"Send a transactional welcome email to new user sarah@meridian.io using the onboarding template."

Troubleshooting Postmark MCP Server with Google ADK

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

McpToolset not found

Update: pip install --upgrade google-adk

Postmark + Google ADK FAQ

Common questions about integrating Postmark 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.

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