How do I find my Zip-codes.com API Key?

Log in to your [**Zip-codes.com account**](https://www.zip-codes.com/account/login.asp), and you will find your API Key under the 'API Settings' or 'My Account' section. Copy and paste it below.

Does it support Canadian postal codes?

Yes. Zip-codes.com provides extensive data for both United States ZIP codes and Canadian Postal Codes (forward sortation areas).

Can the agent calculate distances?

Yes. The `get_zip_distance` tool calculates the point-to-point distance in miles between any two valid ZIP codes instantly.

ZIP Codes API MCP Server for Google ADK 6 tools — connect in under 2 minutes

Name: ZIP Codes API
Availability: InStock
Author: Vinkius

google.github.io/adk-docs/tools/mcp-tools

Built by Vinkius GDPR 6 Tools SDK

Google Agent Development Kit (ADK) is Google's framework for building production AI agents. Add ZIP Codes API as an MCP tool provider through the Vinkius and your ADK agents can call every tool with full schema introspection.

Get MCP Server for AI Agents

ASK AI ABOUT THIS MCP SERVER

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Vinkius supports streamable HTTP and SSE.

python

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="zip_codes_api_agent",
    instruction=(
        "You help users interact with ZIP Codes API "
        "using 6 available tools."
    ),
    tools=[mcp_tools],
)

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About ZIP Codes API MCP Server

Empower your AI agent to orchestrate your entire geographic research and ZIP code auditing workflow with ZIP Codes API, the authoritative source for United States and Canadian location data. By connecting the Zip-codes.com API to your agent, you transform complex logistics searches into a natural conversation. Your agent can instantly retrieve detailed ZIP metadata, audit distances between locations, and identify all ZIP codes within a specific radius without you ever touching a manual lookup tool. Whether you are conducting market analysis or managing regional logistics, your agent acts as a real-time geographic consultant, ensuring your data is always verified and precise.

Google ADK natively supports ZIP Codes API as an MCP tool provider — declare the Vinkius Edge URL and the framework handles discovery, validation, and execution automatically. Combine 6 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

ZIP Auditing — Retrieve high-resolution geographic details for any 5-digit ZIP code, including city, state, and county information.
Radius Oversight — Find all ZIP codes within a specific mile radius of a starting point to identify regional clusters instantly.
Distance Intelligence — Calculate the exact distance between any two ZIP codes to assist in logistics and delivery planning.
Regional Discovery — Find all ZIP codes associated with a specific city, state, or county to maintain a clear view of geographic distribution.
Metadata Discovery — Retrieve latitude and longitude coordinates for specific ZIP codes to maintain visual and spatial context.

The ZIP Codes API MCP Server exposes 6 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 ZIP Codes API to Google ADK via MCP

Follow these steps to integrate the ZIP Codes API 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 6 tools from ZIP Codes API via MCP

Why Use Google ADK with the ZIP Codes API MCP Server

Google ADK provides unique advantages when paired with ZIP Codes API 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 ZIP Codes API

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 ZIP Codes API tools with BigQuery, Vertex AI, and Cloud Functions

ZIP Codes API + Google ADK Use Cases

Practical scenarios where Google ADK combined with the ZIP Codes API MCP Server delivers measurable value.

Enterprise data agents: ADK agents query ZIP Codes API and cross-reference results with internal databases for comprehensive analysis

Multi-modal workflows: combine ZIP Codes API tool responses with Gemini's vision and language capabilities in a single agent

Automated compliance checks: schedule ADK agents to query ZIP Codes API regularly and flag policy violations or configuration drift

Internal tool platforms: build self-service agent platforms where teams connect their own MCP servers including ZIP Codes API

ZIP Codes API MCP Tools for Google ADK (6)

These 6 tools become available when you connect ZIP Codes API to Google ADK via MCP:

find_zips_by_city

Find all ZIP codes associated with a city and state

find_zips_by_county

Find all ZIP codes in a specific county

find_zips_by_state

Find all ZIP codes in a specific state

find_zips_in_radius

Find all ZIP codes within a specific mile radius of a starting ZIP

get_zip_details

Get geographic and demographic details for a specific ZIP code

get_zip_distance

Calculate the distance between two ZIP codes

Example Prompts for ZIP Codes API in Google ADK

Ready-to-use prompts you can give your Google ADK agent to start working with ZIP Codes API immediately.

"Get details for ZIP code '90210' using ZIP Codes API."

"Find all ZIP codes within a 10 mile radius of '10001' (New York)."

"Calculate the distance between '10001' and '90210'."

Troubleshooting ZIP Codes API MCP Server with Google ADK

Common issues when connecting ZIP Codes API to Google ADK through the Vinkius, and how to resolve them.

McpToolset not found

Update: pip install --upgrade google-adk

ZIP Codes API + Google ADK FAQ

Common questions about integrating ZIP Codes API MCP Server with Google ADK.

How does Google ADK connect to MCP servers?

Import the MCP toolset class and pass the server URL. ADK discovers and registers all tools automatically, making them available to your agent's tool-use loop.

Can ADK agents use multiple MCP servers?

Yes. Declare multiple MCP tool providers in your agent configuration. ADK merges all tool schemas and the agent can call tools from any server in a single turn.

Which Gemini models work best with MCP tools?

Gemini 2.0 Flash and Pro models both support function calling required for MCP tools. Flash is recommended for latency-sensitive use cases, Pro for complex reasoning.