USPS Developer Portal MCP Server for Google ADK 8 tools — connect in under 2 minutes
Google Agent Development Kit (ADK) is Google's framework for building production AI agents. Add USPS Developer Portal as an MCP tool provider through the Vinkius and your ADK agents can call every tool with full schema introspection.
ASK AI ABOUT THIS MCP SERVER
Vinkius supports streamable HTTP and SSE.
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="usps_developer_portal_agent",
instruction=(
"You help users interact with USPS Developer Portal "
"using 8 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 USPS Developer Portal MCP Server
Empower your AI agent to orchestrate your entire postal logistics and address auditing workflow with the USPS Developer Portal, the official source for United States Postal Service data. By connecting USPS Web Tools to your agent, you transform complex shipping tasks into a natural conversation. Your agent can instantly verify addresses, audit package tracking statuses, and retrieve ZIP code metadata without you ever touching a shipping portal. Whether you are managing e-commerce deliveries or conducting regional address audits, your agent acts as a real-time logistics consultant, ensuring your data is always verified and precise.
Google ADK natively supports USPS Developer Portal as an MCP tool provider — declare the Vinkius Edge URL and the framework handles discovery, validation, and execution automatically. Combine 8 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
- Address Auditing — Standardize and verify United States addresses to ensure your shipping metadata is always grounded in official USPS records.
- Advanced Tracking Control — Track real-time package statuses and access granular facility-level tracking events instantly.
- ZIP Code & Routing Discovery — Cross-reference ZIP codes with city/state pairs to understand the geographic reach of your logistics.
- Domestic & International Rates — Accurately calculate the real-time cost of shipping across various mail classes, weights, and global destinations.
- Service Delays & Commitments — Query live delivery commitments by mail class to accurately orchestrate e-commerce fulfillment.
The USPS Developer Portal MCP Server exposes 8 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.
How to Connect USPS Developer Portal to Google ADK via MCP
Follow these steps to integrate the USPS Developer Portal MCP Server with Google ADK.
Install Google ADK
Run pip install google-adk
Replace the token
Replace [YOUR_TOKEN_HERE] with your Vinkius token
Create the agent
Save the code above and integrate into your ADK workflow
Explore tools
The agent will discover 8 tools from USPS Developer Portal via MCP
Why Use Google ADK with the USPS Developer Portal MCP Server
Google ADK provides unique advantages when paired with USPS Developer Portal 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 USPS Developer Portal
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 USPS Developer Portal tools with BigQuery, Vertex AI, and Cloud Functions
USPS Developer Portal + Google ADK Use Cases
Practical scenarios where Google ADK combined with the USPS Developer Portal MCP Server delivers measurable value.
Enterprise data agents: ADK agents query USPS Developer Portal and cross-reference results with internal databases for comprehensive analysis
Multi-modal workflows: combine USPS Developer Portal tool responses with Gemini's vision and language capabilities in a single agent
Automated compliance checks: schedule ADK agents to query USPS Developer Portal regularly and flag policy violations or configuration drift
Internal tool platforms: build self-service agent platforms where teams connect their own MCP servers including USPS Developer Portal
USPS Developer Portal MCP Tools for Google ADK (8)
These 8 tools become available when you connect USPS Developer Portal to Google ADK via MCP:
calculate_domestic_rate
Calculate USPS domestic shipping rates
calculate_international_rate
Calculate USPS international shipping rates
get_delivery_commitments
Get USPS service delivery commitments and estimates
lookup_usps_city_state
Look up the city and state for a ZIP code
lookup_usps_zip_code
Look up the exact ZIP code for a specific US address
track_usps_package
Track a USPS package using a tracking number
track_usps_package_advanced
Get advanced tracking information for a USPS package
verify_usps_address
Verify and standardize a US address using USPS Web Tools
Example Prompts for USPS Developer Portal in Google ADK
Ready-to-use prompts you can give your Google ADK agent to start working with USPS Developer Portal immediately.
"Verify address '1600 Pennsylvania Avenue NW, Washington, DC 20500' using USPS."
"Track my package with tracking number '9400100000000000000000'."
"Lookup ZIP code for 'Seattle, WA'."
Troubleshooting USPS Developer Portal MCP Server with Google ADK
Common issues when connecting USPS Developer Portal to Google ADK through the Vinkius, and how to resolve them.
McpToolset not found
pip install --upgrade google-adkUSPS Developer Portal + Google ADK FAQ
Common questions about integrating USPS Developer Portal MCP Server with Google ADK.
How does Google ADK connect to MCP servers?
Can ADK agents use multiple MCP servers?
Which Gemini models work best with MCP tools?
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Connect USPS Developer Portal to Google ADK
Get your token, paste the configuration, and start using 8 tools in under 2 minutes. No API key management needed.