Lob MCP Server for Google ADKGive Google ADK instant access to 9 tools to Autocomplete Address, Create Check, Create Letter, and more
Google Agent Development Kit (ADK) is Google's framework for building production AI agents. Add Lob as an MCP tool provider through Vinkius and your ADK agents can call every tool with full schema introspection.
Ask AI about this App Connector for Google ADK
The Lob app connector for Google ADK is a standout in the Marketing Automation category — giving your AI agent 9 tools to work with, ready to go from day one.
Vinkius delivers Streamable HTTP and SSE to any MCP client
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="lob_alternative_agent",
instruction=(
"You help users interact with Lob "
"using 9 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 Lob MCP Server
Connect your Lob account to any AI agent and manage direct mail through natural conversation.
Google ADK natively supports Lob as an MCP tool provider. declare Vinkius Edge URL and the framework handles discovery, validation, and execution automatically. Combine 9 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
- Letter Sending — Create and send letters with PDF or HTML content
- Postcard Campaigns — Send postcards with front/back designs
- Check Printing — Create and mail checks with payment details
- Address Verification — Verify and standardize US addresses
- Template Management — Browse and manage mail templates
- Delivery Tracking — Track mail pieces through the postal system
The Lob MCP Server exposes 9 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.
All 9 Lob tools available for Google ADK
When Google ADK connects to Lob through Vinkius, your AI agent gets direct access to every tool listed below — spanning direct-mail, address-verification, print-automation, and more. Every call is secured with network, filesystem, subprocess, and code evaluation entitlements inside a sandboxed runtime. Beyond a simple connection, you get a full AI Gateway with real-time visibility into agent activity, enterprise governance, and optimized token usage.
Suggest address completions
Send a physical check
Supports certified mail and custom inserts. Send a physical letter
Supports HTML or PDF for front and back. Send a physical postcard
Track a mail piece
List sent letters
List sent postcards
Verify an international address
Verify a US address
Connect Lob to Google ADK via MCP
Follow these steps to wire Lob into Google ADK. The entire setup takes under two minutes — your credentials stay safe behind the Vinkius.
Install Google ADK
pip install google-adkReplace the token
[YOUR_TOKEN_HERE] with your Vinkius tokenCreate the agent
Explore tools
Why Use Google ADK with the Lob MCP Server
Google ADK provides unique advantages when paired with Lob 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 Lob
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 Lob tools with BigQuery, Vertex AI, and Cloud Functions
Lob + Google ADK Use Cases
Practical scenarios where Google ADK combined with the Lob MCP Server delivers measurable value.
Enterprise data agents: ADK agents query Lob and cross-reference results with internal databases for comprehensive analysis
Multi-modal workflows: combine Lob tool responses with Gemini's vision and language capabilities in a single agent
Automated compliance checks: schedule ADK agents to query Lob regularly and flag policy violations or configuration drift
Internal tool platforms: build self-service agent platforms where teams connect their own MCP servers including Lob
Example Prompts for Lob in Google ADK
Ready-to-use prompts you can give your Google ADK agent to start working with Lob immediately.
"Send a welcome letter to a new customer and verify their address first."
"Show all mail pieces sent this month with delivery status."
"Create a check for $5,000 and browse mail templates."
Troubleshooting Lob MCP Server with Google ADK
Common issues when connecting Lob to Google ADK through the Vinkius, and how to resolve them.
McpToolset not found
pip install --upgrade google-adkLob + Google ADK FAQ
Common questions about integrating Lob MCP Server with Google ADK.