How to Use the Lob MCP in AutoGen

Q: How do I register the Lob MCP Server with AutoGen?

Use autogen-extmcp and configure mcpservertools with the server's HTTP URL. The McpToolAdapter automatically handles schema conversion, making the tools available to your AssistantAgent.

Q: Can AutoGen agents collaborate to verify a Lob address?

Yes. One agent can call verifyusaddress and share the validation output with other agents in your MCP environment. They can then debate whether the address is complete enough to safely send mail.

Q: Can I track sent letters using AutoGen?

Yes. A dedicated tracking agent can periodically run getmailtracking or listletters. It then reports the status back to the coordinator agent to trigger follow-up tasks.

Deploy AutoGen agents to debate and approve physical letters, checks, and postcards before sending them through this MCP Server.

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Debate check issuance using AutoGen agents

`create_check` triggers physical financial payouts only after your agents reach a consensus. A budget agent reviews the spending limit while a compliance agent checks the recipient details. This multi-agent debate prevents unauthorized or incorrect checks from being printed via your MCP tools. Once the agents agree, the tool executes the transaction. This consensus-driven approach brings corporate governance to automated physical payments. You get the speed of automation with the safety of peer review.

Collaborative address validation workflows

`verify_us_address` helps your agents resolve delivery issues through conversation. If an address is flagged as invalid, a data-clearing agent suggests corrections. Another agent verifies the suggestion against your CRM records before proceeding. For global deliveries, the agents use `verify_intl_address` and `autocomplete_address` to find the correct format. This collaborative filtering reduces delivery failures on international campaigns. The final verified address is then passed to the mailing tools.

Coordinate multi-agent postcard campaigns

`create_postcard` accepts HTML or PDF designs generated by your creative agents. One agent drafts the promotional copy while another reviews the layout. They iterate on the design before sending the final assets to the print API. You can track the campaign's progress using `get_mail_tracking` and `list_postcards`. A tracking agent monitors delivery status and alerts your sales agents when a card arrives. This coordinates your physical mail with immediate digital follow-ups.

Setup guide

Set up Lob 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 Lob 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="Lob_assistant",
    model_client=OpenAIChatCompletionClient(model="gpt-4o"),
    tools=tools,
)

result = await agent.run("List recent Lob 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="Lob_assistant",
        model_client=OpenAIChatCompletionClient(model="gpt-4o"),
        workbench=workbench,
    )

    result = await agent.run("List recent Lob 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 Lob. 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 Lob MCP in AutoGen

Use autogen-ext[mcp] and configure mcp_server_tools with the server's HTTP URL. The McpToolAdapter automatically handles schema conversion, making the tools available to your AssistantAgent.

Yes. One agent can call `verify_us_address` and share the validation output with other agents in your MCP environment. They can then debate whether the address is complete enough to safely send mail.

You can configure a supervisor agent that requires human approval before `create_check` is executed. This adds a physical safety gate to the multi-agent consensus workflow.

Yes. A dedicated tracking agent can periodically run `get_mail_tracking` or `list_letters`. It then reports the status back to the coordinator agent to trigger follow-up tasks.

All sensitive data, including routing numbers and physical addresses, is transmitted over encrypted channels. The Vinkius runtime executes in a zero-trust environment, ensuring no transient data is cached on disk.

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