How to integrate Shopify MCP with Google ADK

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Introduction

This guide walks you through connecting Shopify to Google ADK using the Composio tool router. By the end, you'll have a working Shopify agent that can create a new product called 'summer t-shirt', add product id 1234 to 'holiday specials' collection, delete the image with id 5678 from product id 4321, create a new customer with email john@example.com through natural language commands.

This guide will help you understand how to give your Google ADK agent real control over a Shopify account through Composio's Shopify MCP server.

Before we dive in, let's take a quick look at the key ideas and tools involved.

TL;DR

Here's what you'll learn:
  • Get a Shopify account set up and connected to Composio
  • Install the Google ADK and Composio packages
  • Create a Composio Tool Router session for Shopify
  • Build an agent that connects to Shopify through MCP
  • Interact with Shopify using natural language

What is Google ADK?

Google ADK (Agents Development Kit) is Google's framework for building AI agents powered by Gemini models. It provides tools for creating agents that can use external services through the Model Context Protocol.

Key features include:

  • Gemini Integration: Native support for Google's Gemini models
  • MCP Toolset: Built-in support for Model Context Protocol tools
  • Streamable HTTP: Connect to external services through streamable HTTP
  • CLI and Web UI: Run agents via command line or web interface

What is the Shopify MCP server, and what's possible with it?

The Shopify MCP server is an implementation of the Model Context Protocol that connects your AI agent and assistants like Claude, Cursor, etc directly to your Shopify account. It provides structured and secure access to your store, so your agent can perform actions like managing products, processing orders, handling collections, organizing images, and managing customers on your behalf.

  • Product management and automation: Let your agent create new products, update existing listings, or delete products from your Shopify store quickly and accurately.
  • Order creation and fulfillment: Direct your agent to generate new orders, associate them with customers, and streamline your sales process with minimal manual input.
  • Collection organization: Ask your agent to create custom collections, add products to collections, or remove collections to keep your store categories organized and up to date.
  • Product image handling: Have your agent add new images to products, count existing images for inventory tracking, or remove outdated images from your catalog.
  • Customer management: Automate the creation of new customer records, making it easy to onboard shoppers and keep your CRM current without lifting a finger.

Supported Tools & Triggers

Tools
Add product to custom collectionAdds a product to an existing *custom collection*, optionally specifying its `position` if the collection is manually sorted.
Count product imagesRetrieves the total count of images for a shopify product, useful for inventory management or display logic; the provided `product id` must exist in the store.
Create a custom collectionCreates a new custom collection in a shopify store, requiring a unique title for manually curated product groupings (e.
Create CustomerTool to create a new customer in shopify.
Create an orderCreates a new order in shopify, typically requiring line items; if `customer id` is provided, it must correspond to an existing customer.
Create a productCreates a new product in a shopify store; a product title is generally required.
Create Product ImageTool to create a new product image for a given product.
Delete custom collectionPermanently deletes a custom collection from a shopify store using its `collection id`; this action is irreversible and requires a valid, existing `collection id`.
Delete a productDeletes a specific, existing product from a shopify store using its unique product id; this action is irreversible.
Delete product imageDeletes a specific image from a product in shopify, requiring the `product id` of an existing product and the `image id` of an image currently associated with that product.
Get All CustomersRetrieves customer records from a shopify store, with options for filtering, selecting specific fields, and paginating through the results.
Get collection by IDRetrieves a specific shopify collection by its `collection id`, optionally filtering returned data to specified `fields`.
Get collectsRetrieves a list of collects from a shopify store, where a collect links a product to a custom collection.
Get collects countRetrieves the total count of collects (product-to-collection associations) in a shopify store.
Get custom collectionsRetrieves a list of custom collections from a shopify store, optionally filtered by ids, product id, or handle.
Get custom collections countRetrieves the total number of custom collections in a shopify store.
Get CustomerRetrieves detailed information for a specific customer from a shopify store, provided their valid and existing `customer id`.
Get customer ordersRetrieves all orders for a specific, existing customer in shopify using their unique customer id.
Get order listRetrieves a list of orders from shopify using default api settings and filters.
Get order by idRetrieves a specific shopify order by its unique id, which must correspond to an existing order.
Get productRetrieves details for an existing shopify product using its unique product id.
Get product imageRetrieves detailed information for a specific product image, identified by its id and its associated product id, from a shopify store.
Get Product ImagesRetrieves all images for a shopify product, specified by its `product id` which must correspond to an existing product.
Get productsRetrieves a list of products from a shopify store.
Get products countRetrieves the total, unfiltered count of all products in a shopify store.
Get products in collectionRetrieves all products within a specified shopify collection, requiring a valid `collection id`.
Get Shop DetailsRetrieves comprehensive administrative information about the authenticated shopify store, as defined by the shopify api.
Update OrderUpdates the phone number for an existing shopify order, identified by its id; pass `phone=none` to remove the current phone number.

What is the Composio tool router, and how does it fit here?

What is Tool Router?

Composio's Tool Router helps agents find the right tools for a task at runtime. You can plug in multiple toolkits (like Gmail, HubSpot, and GitHub), and the agent will identify the relevant app and action to complete multi-step workflows. This can reduce token usage and improve the reliability of tool calls. Read more here: Getting started with Tool Router

The tool router generates a secure MCP URL that your agents can access to perform actions.

How the Tool Router works

The Tool Router follows a three-phase workflow:

  1. Discovery: Searches for tools matching your task and returns relevant toolkits with their details.
  2. Authentication: Checks for active connections. If missing, creates an auth config and returns a connection URL via Auth Link.
  3. Execution: Executes the action using the authenticated connection.

Step-by-step Guide

Prerequisites

Before starting, make sure you have:
  • A Google API key for Gemini models
  • A Composio account and API key
  • Python 3.9 or later installed
  • Basic familiarity with Python

Getting API Keys for Google and Composio

Google API Key
  • Go to Google AI Studio and create an API key.
  • Copy the key and keep it safe. You will put this in GOOGLE_API_KEY.
Composio API Key and User ID
  • Log in to the Composio dashboard.
  • Go to Settings → API Keys and copy your Composio API key. Use this for COMPOSIO_API_KEY.
  • Decide on a stable user identifier to scope sessions, often your email or a user ID. Use this for COMPOSIO_USER_ID.

Install dependencies

bash
pip install google-adk composio-google python-dotenv

Inside your virtual environment, install the required packages.

What's happening:

  • google-adk is Google's Agents Development Kit
  • composio connects your agent to Shopify via MCP
  • composio-google provides the Google ADK provider
  • python-dotenv loads environment variables

Set up ADK project

bash
adk create my_agent

Set up a new Google ADK project.

What's happening:

  • This creates an agent folder with a root agent file and .env file

Set environment variables

bash
GOOGLE_API_KEY=your-google-api-key
COMPOSIO_API_KEY=your-composio-api-key
COMPOSIO_USER_ID=your-user-id-or-email

Save all your credentials in the .env file.

What's happening:

  • GOOGLE_API_KEY authenticates with Google's Gemini models
  • COMPOSIO_API_KEY authenticates with Composio
  • COMPOSIO_USER_ID identifies the user for session management

Import modules and validate environment

python
import os
import warnings

from composio import Composio
from composio_google import GoogleProvider
from dotenv import load_dotenv
from google.adk.agents.llm_agent import Agent
from google.adk.tools.mcp_tool.mcp_session_manager import StreamableHTTPConnectionParams
from google.adk.tools.mcp_tool.mcp_toolset import McpToolset

load_dotenv()

warnings.filterwarnings("ignore", message=".*BaseAuthenticatedTool.*")

GOOGLE_API_KEY = os.getenv("GOOGLE_API_KEY")
COMPOSIO_API_KEY = os.getenv("COMPOSIO_API_KEY")
COMPOSIO_USER_ID = os.getenv("COMPOSIO_USER_ID")

if not GOOGLE_API_KEY:
    raise ValueError("GOOGLE_API_KEY is not set in the environment.")
if not COMPOSIO_API_KEY:
    raise ValueError("COMPOSIO_API_KEY is not set in the environment.")
if not COMPOSIO_USER_ID:
    raise ValueError("COMPOSIO_USER_ID is not set in the environment.")
What's happening:
  • os reads environment variables
  • Composio is the main Composio SDK client
  • GoogleProvider declares that you are using Google ADK as the agent runtime
  • Agent is the Google ADK LLM agent class
  • McpToolset lets the ADK agent call MCP tools over HTTP

Create Composio client and Tool Router session

python
print("Initializing Composio client...")
composio_client = Composio(api_key=COMPOSIO_API_KEY, provider=GoogleProvider())

print("Creating Composio session...")
composio_session = composio_client.create(
    user_id=COMPOSIO_USER_ID,
    toolkits=["shopify"],
)

COMPOSIO_MCP_URL = composio_session.mcp.url
print(f"Composio MCP HTTP URL: {COMPOSIO_MCP_URL}")
What's happening:
  • Authenticates to Composio with your API key
  • Declares Google ADK as the provider
  • Spins up a short-lived MCP endpoint for your user and selected toolkit
  • Stores the MCP HTTP URL for the ADK MCP integration

Set up the McpToolset and create the Agent

python
print("Creating Composio toolset for the agent...")
composio_toolset = McpToolset(
    connection_params=StreamableHTTPConnectionParams(
        url=COMPOSIO_MCP_URL,
        headers={"x-api-key": os.getenv("COMPOSIO_API_KEY")}
    )
)

root_agent = Agent(
    model="gemini-2.5-pro",
    name="composio_agent",
    description="An agent that uses Shopify tools to perform actions.",
    instruction=(
        "You are a helpful assistant connected to Composio. "
        "You have the following tools available: "
        "COMPOSIO_SEARCH_TOOLS, COMPOSIO_MULTI_EXECUTE_TOOL, "
        "COMPOSIO_MANAGE_CONNECTIONS, COMPOSIO_REMOTE_BASH_TOOL, COMPOSIO_REMOTE_WORKBENCH. "
        "Use these tools to help users with Shopify operations."
    ),
    tools=[composio_toolset],
)

print("\nAgent setup complete. You can now run this agent directly ;)")
What's happening:
  • Connects the ADK agent to the Composio MCP endpoint through McpToolset
  • Uses Gemini as the model powering the agent
  • Lists exact tool names in instruction to reduce misnamed tool calls

Run the agent

bash
# Run in CLI mode
adk run my_agent

# Or run in web UI mode
adk web
Execute the agent from the project root. The web command opens a web portal where you can chat with the agent. What's happening:
  • adk run runs the agent in CLI mode
  • adk web opens a web UI for interactive testing

Complete Code

Here's the complete code to get you started with Shopify and Google ADK:

python
import os
import warnings

from composio import Composio
from composio_google import GoogleProvider
from dotenv import load_dotenv
from google.adk.agents.llm_agent import Agent
from google.adk.tools.mcp_tool.mcp_session_manager import StreamableHTTPConnectionParams
from google.adk.tools.mcp_tool.mcp_toolset import McpToolset

def main():
    try:
        load_dotenv()

        warnings.filterwarnings("ignore", message=".*BaseAuthenticatedTool.*")

        GOOGLE_API_KEY = os.getenv("GOOGLE_API_KEY")
        COMPOSIO_API_KEY = os.getenv("COMPOSIO_API_KEY")
        COMPOSIO_USER_ID = os.getenv("COMPOSIO_USER_ID")

        if not GOOGLE_API_KEY:
            raise ValueError("GOOGLE_API_KEY is not set in the environment.")
        if not COMPOSIO_API_KEY:
            raise ValueError("COMPOSIO_API_KEY is not set in the environment.")
        if not COMPOSIO_USER_ID:
            raise ValueError("COMPOSIO_USER_ID is not set in the environment.")

        print("Initializing Composio client...")
        composio_client = Composio(api_key=COMPOSIO_API_KEY, provider=GoogleProvider())

        print("Creating Composio session...")
        composio_session = composio_client.create(
            user_id=COMPOSIO_USER_ID,
            toolkits=["shopify"],
        )

        COMPOSIO_MCP_URL = composio_session.mcp.url
        print(f"Composio MCP HTTP URL: {COMPOSIO_MCP_URL}")

        print("Creating Composio toolset for the agent...")
        composio_toolset = McpToolset(
            connection_params=StreamableHTTPConnectionParams(
                url=COMPOSIO_MCP_URL,
                headers={"x-api-key": os.getenv("COMPOSIO_API_KEY")}
            )
        )

        root_agent = Agent(
            model="gemini-2.5-pro",
            name="composio_agent",
            description="An agent that uses Shopify tools to perform actions.",
            instruction=(
                "You are a helpful assistant connected to Composio. "
                "You have the following tools available: "
                "COMPOSIO_SEARCH_TOOLS, COMPOSIO_MULTI_EXECUTE_TOOL, "
                "COMPOSIO_MANAGE_CONNECTIONS, COMPOSIO_REMOTE_BASH_TOOL, COMPOSIO_REMOTE_WORKBENCH. "
                "Use these tools to help users with Shopify operations."
            ),
            tools=[composio_toolset],
        )

        print("\nAgent setup complete. You can now run this agent directly ;)")

    except Exception as e:
        print(f"\nAn error occurred during agent setup: {e}")

if __name__ == "__main__":
    main()

Conclusion

You've successfully integrated Shopify with the Google ADK through Composio's MCP Tool Router. Your agent can now interact with Shopify using natural language commands.

Key takeaways:

  • The Tool Router approach dynamically routes requests to the appropriate Shopify tools
  • Environment variables keep your credentials secure and separate from code
  • Clear agent instructions reduce tool calling errors
  • The ADK web UI provides an interactive interface for testing and development

You can extend this setup by adding more toolkits to the toolkits array in your session configuration.

How to build Shopify MCP Agent with another framework

FAQ

What are the differences in Tool Router MCP and Shopify MCP?

With a standalone Shopify MCP server, the agents and LLMs can only access a fixed set of Shopify tools tied to that server. However, with the Composio Tool Router, agents can dynamically load tools from Shopify and many other apps based on the task at hand, all through a single MCP endpoint.

Can I use Tool Router MCP with Google ADK?

Yes, you can. Google ADK fully supports MCP integration. You get structured tool calling, message history handling, and model orchestration while Tool Router takes care of discovering and serving the right Shopify tools.

Can I manage the permissions and scopes for Shopify while using Tool Router?

Yes, absolutely. You can configure which Shopify scopes and actions are allowed when connecting your account to Composio. You can also bring your own OAuth credentials or API configuration so you keep full control over what the agent can do.

How safe is my data with Composio Tool Router?

All sensitive data such as tokens, keys, and configuration is fully encrypted at rest and in transit. Composio is SOC 2 Type 2 compliant and follows strict security practices so your Shopify data and credentials are handled as safely as possible.

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