Postmark MCP Server for Google ADK 10 tools — connect in under 2 minutes
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
Vinkius supports streamable HTTP and SSE.
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_agent",
instruction=(
"You help users interact with Postmark "
"using 10 available tools."
),
tools=[mcp_tools],
)
* 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 server safely to any AI agent, granting it the ability to dispatch transactional emails, debug delivery failures, and inspect mailing architectures directly via conversational prompts.
Google ADK natively supports Postmark as an MCP tool provider. declare Vinkius Edge URL and the framework handles discovery, validation, and execution automatically. Combine 10 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
- Send Emails & Templates — Command the AI to dispatch text-based emails or trigger rich HTML messages using pre-existing Postmark templates (
send_with_template) - Inspect Bounces & Logs — Ask why an email failed. The AI can pull exact SMTP traces (
get_bounce_logs) to explain spam rejections or DNS timeouts - Monitor Delivery Stats — Retrieve precise operational health data, mapping open rates and physical bytes sent across massive volumes
- Manage Configurations & Templates — List active webhooks spanning your routing, edit server names, or safely clean up legacy template layouts
The Postmark MCP Server exposes 10 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 Postmark to Google ADK via MCP
Follow these steps to integrate the Postmark 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 10 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
Postmark MCP Tools for Google ADK (10)
These 10 tools become available when you connect Postmark to Google ADK via MCP:
delete_template
Delete an email template
get_bounce_logs
Get raw SMTP logs for a bounce
get_delivery_stats
Get delivery metrics for the server
get_server_config
Get Postmark server configuration
list_bounces
List recent email bounces
list_spam_complaints
List recent spam complaints
list_templates
List all email templates
send_email
Send a plain text or HTML email
send_with_template
Send an email using a template
update_server_config
Update server name
Example Prompts for Postmark in Google ADK
Ready-to-use prompts you can give your Google ADK agent to start working with Postmark immediately.
"Can you check if we had any hard bounces yesterday, and tell me why?"
"List all active Postmark templates, then delete the one clearly named 'Legacy Promo'."
"Send a welcome email through Postmark using template ID `10101` to `user@example.com`."
Troubleshooting Postmark MCP Server with Google ADK
Common issues when connecting Postmark to Google ADK through the Vinkius, and how to resolve them.
McpToolset not found
pip install --upgrade google-adkPostmark + Google ADK FAQ
Common questions about integrating Postmark MCP Server with Google ADK.
How does Google ADK connect to MCP servers?
Can ADK agents use multiple MCP servers?
Which Gemini models work best with MCP tools?
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Connect Postmark to Google ADK
Get your token, paste the configuration, and start using 10 tools in under 2 minutes. No API key management needed.