How to Use the Correios (Brazil) MCP in Google ADK

Q: How do I filter tools for Correios (Brazil) in Google ADK?

Use the toolnames list inside your McpToolset definition. This restricts the agent to only the specific functions you want it to execute.

Connect Correios (Brazil) to your Google ADK agents to query shipping data and post office locations.

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Connect Correios (Brazil) MCP to Google ADK

Create your Vinkius account to connect Correios (Brazil) 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.

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Setup Correios (Brazil) with Google ADK

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Map locations using Google ADK and this MCP Server

Call `search_units_by_cep` to identify nearby post offices based on a specific location. It returns the exact coordinates needed for your logistics planning. Your agent then routes this info to BigQuery for spatial analysis. It links physical infrastructure to your digital workflow.

Retrieve contract services via Google ADK

The `list_contract_services` tool exposes every shipping option tied to your account. Your agent checks these against your current requirements. It provides a clear list of available methods. You avoid guessing which services your contract actually covers.

Check office details in Google ADK

Query `get_unit_info` to pull operational hours and physical address data for any post office. Your agent gets this information in seconds. This is useful for building help-desk agents. You provide accurate physical data to users without writing custom scraping logic.

Setup guide

Set up Correios (Brazil) 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 Correios (Brazil) 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="Correios (Brazil)_agent",
    model="gemini-2.0-flash",
    instruction="You have access to Correios (Brazil) tools via MCP.",
    tools=mcp_tools,
)

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Independent Platform Disclaimer: Vinkius is an independent platform and is not affiliated with, endorsed by, sponsored by, verified by, or otherwise authorized by Correios. 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.

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Common questions about Correios (Brazil) MCP in Google ADK

Use the tool_names list inside your McpToolset definition. This restricts the agent to only the specific functions you want it to execute.

Your agent can take the output from any tool and write it into your database. The framework handles the connection between the tool and your cloud infrastructure.

The framework natively supports both Stdio and HTTP transports. You point the toolset to the Vinkius endpoint and it handles the rest.

Vinkius provides a secure sandbox for all tool calls. Your agent session uses a unique endpoint token to verify the connection.

The server retrieves your contract status via a secure channel. No sensitive account metadata is stored on the Vinkius side after the request completes.

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