How to Use the Correios (Brazil) MCP in AutoGen

Q: How do AutoGen agents share Correios (Brazil) tracking data during a conversation?

When an agent calls trackobject, the resulting status is published to the group chat context. Other agents, like a customer support agent, read this message and use it to formulate their next response.

Q: How do AutoGen agents resolve conflicts over Correios (Brazil) shipping costs?

You set up a debate loop where one agent runs calculatepricedeadline and another checks getcontractstatus. They negotiate based on your business rules until they agree on the most cost-effective shipping method.

Deploy multi-agent shipping debates using the Correios MCP Server in AutoGen.

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Connect Correios (Brazil) MCP to AutoGen

Create your Vinkius account to connect Correios (Brazil) to AutoGen 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 AutoGen

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Coordinate multi-agent shipping debates in AutoGen

`calculate_price_deadline` provides the baseline pricing data that your AutoGen shipping agent and finance agent use to negotiate shipping options. The shipping agent calls this tool to find the fastest delivery method, while the finance agent analyzes the budget constraints to determine if the cost is acceptable. They negotiate shipping rates over the MCP connection in an automated chat loop. This ensures your system never selects an expensive express shipping option when a cheaper contract service would meet the customer's deadline.

Automate package exception handling via specialized agents

`track_object` is used by a specialized tracking agent to monitor active deliveries in Brazil. If a package is flagged as delayed, this agent alerts a customer service agent within the AutoGen group to draft an apology email. The agents collaborate to resolve the issue without human intervention. The tracking agent provides the raw status, while the resolution agent matches it with `get_unit_info` to tell the customer exactly which post office is holding their package.

Validate address databases through agent consensus

`lookup_cep` allows your validation agent to verify user-submitted addresses before passing them to the billing agent. If the CEP is invalid or doesn't match the state, the validation agent rejects the transaction and requests a correction. This multi-agent verification loop prevents shipping failures before labels are purchased. By combining this with `search_units_by_cep`, a logistics agent can even suggest alternative pickup locations if the residential address is in an undeliverable zone.

Setup guide

Set up Correios (Brazil) MCP in AutoGen

Prerequisites

Python 3.10+ installed
autogen-ext[mcp] package
Active Vinkius subscription with a valid endpoint token

1

Install AutoGen with MCP
Run pip install "autogen-ext[mcp]" autogen-agentchat. The MCP extension includes mcp_server_tools for stateless tool access.
2

Fetch tools from the MCP
Call mcp_server_tools(SseServerParams(url=...)) with your Vinkius endpoint. Replace [YOUR_TOKEN_HERE] with your token from cloud.vinkius.com.
3

Run your agent
Pass the tools to AssistantAgent and call agent.run(). The agent invokes Correios (Brazil) tools and returns structured results.

agent.py

from autogen_ext.tools.mcp import SseServerParams, mcp_server_tools
from autogen_agentchat.agents import AssistantAgent
from autogen_ext.models.openai import OpenAIChatCompletionClient

server_params = SseServerParams(
    url="https://edge.vinkius.com/[YOUR_TOKEN_HERE]/mcp"
)

tools = await mcp_server_tools(server_params)

agent = AssistantAgent(
    name="Correios (Brazil)_assistant",
    model_client=OpenAIChatCompletionClient(model="gpt-4o"),
    tools=tools,
)

result = await agent.run("List recent Correios (Brazil) data")
print(result.messages[-1].content)

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Prerequisites

Python 3.10+ installed
autogen-ext[mcp] + autogen-agentchat
Active Vinkius subscription with a valid endpoint token

1

Install dependencies
Same packages as above. McpWorkbench is ideal when your agent needs stateful sessions across multiple tool calls.
2

Use McpWorkbench as context manager
Wrap your agent in async with McpWorkbench(...) to maintain shared state and resources. The workbench manages the full MCP session lifecycle.
3

Run with workbench
Pass workbench=workbench to your agent. State is preserved across multiple tool calls within the same session.

agent.py

from autogen_ext.tools.mcp import McpWorkbench, SseServerParams
from autogen_agentchat.agents import AssistantAgent
from autogen_ext.models.openai import OpenAIChatCompletionClient

server_params = SseServerParams(
    url="https://edge.vinkius.com/[YOUR_TOKEN_HERE]/mcp"
)

async with McpWorkbench(server_params) as workbench:
    agent = AssistantAgent(
        name="Correios (Brazil)_assistant",
        model_client=OpenAIChatCompletionClient(model="gpt-4o"),
        workbench=workbench,
    )

    result = await agent.run("List recent Correios (Brazil) data")
    print(result.messages[-1].content)

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 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 AutoGen

When an agent calls `track_object`, the resulting status is published to the group chat context. Other agents, like a customer support agent, read this message and use it to formulate their next response.

Yes, the Vinkius platform exposes the MCP Server via Streamable HTTP, which you connect to using StreamableHttpServerParams in your AutoGen extension setup.

You set up a debate loop where one agent runs `calculate_price_deadline` and another checks `get_contract_status`. They negotiate based on your business rules until they agree on the most cost-effective shipping method.

Use the MCP tool helper to fetch the tool definitions from the server URL, then pass that tool list directly into your AssistantAgent constructor.

Your contract credentials and tracking IDs are processed inside a secure, ephemeral V8 isolate sandbox. Vinkius never stores your shipping contract details on disk, keeping your corporate logistics data completely isolated.

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