How to Use the Mailsac MCP in Google ADK

Q: How do I use Google ADK to search Mailsac messages?

Call searchaccountmessages with your search criteria as an argument. The Google ADK agent will process the response and return the relevant messages from your Mailsac account for inspection.

Q: Does Google ADK support private domains with Mailsac?

Yes. You can use listcustomdomains to see which domains are connected to your account. Your agent can then select the correct domain for generating test addresses.

Integrate Mailsac email testing into your Google ADK agent. Build reliable end-to-end flows on Google Cloud infrastructure.

See Vinkius in Action

Works with every AI agent you already use

…and any MCP-compatible client

MCP Servers - Free for Subscribers

Connect Mailsac MCP to Google ADK

Create your Vinkius account to connect Mailsac to Google ADK and route execution through our secure gateway. The platform manages server hosting, runtime updates, and security layers. Configuration requires no manual server provisioning.

GDPR Free for Subscribers

Setup Mailsac with Google ADK

Ask AI about this MCP

ChatGPT

Claude

Perplexity

Sync Mailsac with your Google ADK agent

Connect your agent to real email streams to validate workflows that span multiple services. You can use `list_custom_domains` to organize your test traffic alongside your primary Google Cloud deployments. This setup allows your agent to treat incoming mail as just another data source. It is ideal for verifying that your backend services are firing the correct notifications.

Access email payloads through Google ADK

Pull the raw text of any message using `get_plain_text_body` to verify content accuracy. Your agent parses this data to drive subsequent actions or assertions in your pipeline. This approach avoids the complexity of setting up a local mail server. The MCP Server provides a direct line to your messages, keeping your architecture clean.

Automate address reservation in Google ADK

Use `reserve_new_address` to generate unique identifiers for every test execution. Your agent manages these addresses autonomously, ensuring each test run remains independent. Once the test finishes, use `release_reserved_address` to decommission the resource. This is a common pattern for high-volume automated testing in enterprise environments.

Setup guide

Set up Mailsac MCP in Google ADK

Prerequisites

Python 3.10+ installed
google-adk package (pip install google-adk)
Active Vinkius subscription with a valid endpoint token

1

Install Google ADK

Run pip install google-adk to install the Agent Development Kit. MCP support is included via the McpToolset class.
2

Connect via SSE transport

Use McpToolset.from_server() with SseServerParams pointing to your Vinkius endpoint. Replace [YOUR_TOKEN_HERE] with your token from cloud.vinkius.com.
3

Create an LlmAgent

Pass the returned mcp_tools list directly to LlmAgent(tools=mcp_tools). The ADK maps each MCP tool to a native Gemini function call — no manual schema definitions required.
4

Run with any Gemini model

The agent works with any Gemini model (gemini-2.0-flash, gemini-2.5-pro, etc.). Copy the full example on the right to get started with Mailsac tools in your ADK agent.

agent.py

from google.adk.agents import LlmAgent
from google.adk.tools.mcp_tool.mcp_toolset import McpToolset
from google.adk.tools.mcp_tool.mcp_session_manager import SseServerParams

# Connect to the MCP via SSE
mcp_tools, exit_stack = await McpToolset.from_server(
    connection_params=SseServerParams(
        url="https://edge.vinkius.com/[YOUR_TOKEN_HERE]/mcp"
    )
)

# Create your agent with auto-discovered tools
agent = LlmAgent(
    name="Mailsac_agent",
    model="gemini-2.0-flash",
    instruction="You have access to Mailsac tools via MCP.",
    tools=mcp_tools,
)

Get your connection token →

Independent Platform Disclaimer: Vinkius is an independent platform and is not affiliated with, endorsed by, sponsored by, verified by, or otherwise authorized by Mailsac. All third-party trademarks, logos, and brand names are the property of their respective owners. Their use on this website is strictly for informational purposes to identify service compatibility and interoperability.

Why Choose Vinkius

Vinkius connects your tools to AI with real-time monitoring and automatic cost savings — all from one dashboard.

Connect Mailsac now

Real-time monitoring

Live

visibility into every interaction

Connect your favorite tools to your AI and see exactly what's happening — every request, every response, in real time.

Built-in savings

60%

lower AI costs

Vinkius compresses data between your apps and your AI automatically. Lower bills every month — no configuration required.

Single dashboard

One

place for every integration

Every tool your AI connects to, managed from a single screen. One account, complete control.

Common questions about Mailsac MCP in Google ADK

Call `search_account_messages` with your search criteria as an argument. The Google ADK agent will process the response and return the relevant messages from your Mailsac account for inspection.

Yes. You can use `list_custom_domains` to see which domains are connected to your account. Your agent can then select the correct domain for generating test addresses.

You can. By combining inbox polling with your existing Google Cloud logic, you create a complete loop. Your agent triggers the email and verifies the receipt within the same execution context.

The server only touches the specific message content you request. We recommend calling `delete_inbox_message` once your agent has verified the email to minimize the time sensitive data exists in the Mailsac storage.

Your reservation limit depends on your Mailsac plan. You can check your current usage by calling the appropriate list tools and ensure your agent releases addresses after each test.

Use it with your favorite AI tools

Connect this server to Cursor, Claude, VS Code, and more.

OpenAI Agents SDK sdk-python

Google ADK sdk-python

Pydantic AI sdk-python

Vercel AI SDK sdk-typescript