How to integrate Cloudcart MCP with LlamaIndex

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Introduction

This guide walks you through connecting Cloudcart to LlamaIndex using the Composio tool router. By the end, you'll have a working Cloudcart agent that can add three t-shirts to a customer’s cart, create a new product called summer mug, register a new customer with email and name through natural language commands.

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

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

Also integrate Cloudcart with

TL;DR

Here's what you'll learn:
  • Set your OpenAI and Composio API keys
  • Install LlamaIndex and Composio packages
  • Create a Composio Tool Router session for Cloudcart
  • Connect LlamaIndex to the Cloudcart MCP server
  • Build a Cloudcart-powered agent using LlamaIndex
  • Interact with Cloudcart through natural language

What is LlamaIndex?

LlamaIndex is a data framework for building LLM applications. It provides tools for connecting LLMs to external data sources and services through agents and tools.

Key features include:

  • ReAct Agent: Reasoning and acting pattern for tool-using agents
  • MCP Tools: Native support for Model Context Protocol
  • Context Management: Maintain conversation context across interactions
  • Async Support: Built for async/await patterns

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

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

  • Product and inventory management: Add new products, create variants, and update your store catalog efficiently through your agent.
  • Customer onboarding and management: Register new customers or update existing profiles, enabling seamless customer experiences directly from your agent.
  • Order processing and cart handling: Let your agent create new orders, add items to carts, or clear carts to streamline the purchase flow.
  • Category and vendor organization: Create new product categories or onboard vendors, keeping your store organized and expanding easily.
  • Variant configuration and customization: Add or update product variants and their parameters, allowing your agent to manage different product options and custom attributes.

Supported Tools & Triggers

Tools
Add Category PropertiesTool to add properties to a category relationship.
Add to CartTool to add an item to the cart.
Clear CartTool to remove all items from the specified cart.
Create Blog CategoryTool to create a new blog category in CloudCart.
Create Blog PostTool to create a new blog post in CloudCart.
Create Blog TagTool to create a new blog tag in CloudCart.
Create CategoryTool to create a new category.
Create CustomerTool to create a new customer in CloudCart.
Create Customer Billing AddressTool to create a new customer billing address.
Create Customer GroupsTool to create a new customer group in CloudCart.
Create Customer Shipping AddressTool to create a customer shipping address in CloudCart.
Create Customer TagTool to create a new customer tag in CloudCart.
Create DiscountTool to create a new discount in CloudCart.
Create Discount CodeCreate a new discount code in CloudCart.
Create ImageTool to create a new image for a product.
Create Linked ProductsTool to create linked product relationships in CloudCart.
Create OrderTool to create a new order.
Create ProductCreates a new product in CloudCart catalog.
Create Products Property OptionsTool to add property options to a product relationship.
Create Product to DiscountTool to create a product to discount relationship in CloudCart.
Create PropertyTool to create a new property in CloudCart.
Create Property OptionTool to create a new property option.
Create RedirectCreate a new URL redirect in CloudCart.
Create SubscriberTool to create a new subscriber in CloudCart.
Create Subscriber ChannelTool to create a new subscriber channel in CloudCart.
Create Subscriber TagTool to create a new subscriber-tag association in CloudCart.
Create VariantTool to create a new product variant for a given product.
Create Variant OptionTool to create a new variant option for a specific product variant.
Create Variant OptionsTool to create a new variant option.
Create Variant ParameterTool to create a new variant parameter for a product variant.
Create Variant ParameterTool to create a new variant parameter definition.
Create VendorCreate a new vendor in your CloudCart store.
Create WebhookTool to create a new webhook subscription in CloudCart.
Delete Blog CategoryTool to delete a blog category by its ID.
Delete Blog PostTool to delete a blog post by its ID.
Delete Blog TagTool to delete a blog tag by its ID.
Delete CategoryTool to delete a category by its ID.
Delete CustomerTool to delete a customer.
Delete Customer Billing AddressTool to delete a customer billing address by its ID.
Delete Customer GroupTool to delete a customer group by its ID.
Delete Customer Shipping AddressTool to delete a customer shipping address.
Delete Customer TagTool to delete a customer tag by its ID.
Delete DiscountTool to delete a discount by its ID.
Delete Discount CodeTool to delete a discount code by its ID.
Delete ImageTool to delete an image by its ID.
Delete OrderTool to delete an order.
Delete ProductTool to delete a product by its ID.
Delete Linked ProductsTool to delete linked product relationships in CloudCart.
Delete Product To DiscountTool to delete a product-to-discount relationship by its ID.
Delete PropertyTool to delete a property by its ID.
Delete Property OptionsTool to delete a property option by its ID.
Delete RedirectTool to delete a redirect by its ID.
Delete SubscriberTool to delete a subscriber by their ID.
Delete Subscribers ChannelTool to delete a subscriber channel by ID.
Delete Subscriber TagTool to delete a subscriber tag by its ID.
Delete VariantTool to delete a variant by its ID.
Delete Variant OptionTool to delete a variant option by its ID.
Delete Variant ParameterTool to delete a variant parameter by its ID.
Delete VendorDelete a vendor by its ID from the CloudCart store.
Delete WebhookTool to delete a webhook by its ID from the CloudCart store.
Generate Discount CodesTool to generate multiple discount codes with a specified discount percentage.
Get Blog AuthorTool to retrieve details of a specific blog author by ID.
Get Blog CategoryTool to retrieve details of a specific blog category by ID.
Get Blog PostTool to retrieve a single blog post by its ID.
Get Blog TagTool to retrieve details of a specific blog tag by ID.
Get CartTool to retrieve the current shopping cart.
Get CategoriesTool to retrieve a list of all categories.
Get Category PropertiesTool to retrieve properties relationship for a category.
Get CategoryTool to retrieve details of a specific category by ID.
Get CustomerTool to retrieve details of a specific customer by ID.
Get Customer Billing AddressTool to retrieve a specific customer billing address by its ID.
Get Customer GroupTool to retrieve details of a specific customer group by ID.
Get Customer Groups CustomersTool to retrieve customers from a specific customer group.
Get CustomersTool to retrieve a list of all customers.
Get Customer Shipping AddressTool to retrieve a single customer shipping address by ID.
Get Customer TagTool to retrieve details of a specific customer tag.
Get ImageTool to retrieve details of a specific image by ID.
Get OrdersRetrieve a paginated list of orders from your CloudCart store.
Get Payment MethodsTool to retrieve all available payment methods.
Get ProductsTool to retrieve a list of products with optional filters.
Get Products Linked ProductTool to retrieve linked products for a specific product.
Get Products Linked ProductsTool to retrieve linked products for a specific product.
Get Product With RelationsRetrieves detailed information about a specific product including its relationships (category, vendor, variants).
Get PropertyTool to retrieve details of a specific property by ID.
Get Property OptionTool to retrieve details of a specific property option by ID.
Get Property Options RelationshipTool to retrieve property options relationship for a product.
Get Shipping MethodsTool to retrieve all available shipping methods.
Get SubscriberTool to retrieve details of a specific subscriber by ID.
Get Subscribers ChannelTool to retrieve a single subscriber channel by its ID.
Get Subscriber TagTool to retrieve details of a specific subscriber tag by ID.
Get VariantTool to retrieve details of a specific variant by ID.
Get Variant OptionTool to retrieve a specific variant option by its ID.
Get Variant ParameterTool to retrieve details of a specific variant parameter by ID.
Get VendorTool to retrieve details of a specific vendor.
Get WebhookTool to retrieve details of a specific webhook by ID.
List Blog CategoriesTool to retrieve all blog categories with optional pagination, sorting, and filtering.
List Blog PostsTool to retrieve a list of all blog posts.
List Blog TagsTool to retrieve all blog tags from CloudCart.
List Customer Billing AddressesTool to retrieve a list of all customer billing addresses.
List Customer GroupsTool to retrieve all customer groups.
List Customer Shipping AddressesTool to retrieve a paginated list of customer shipping addresses.
List Customer TagsTool to retrieve all customer tags.
List Discount CodesTool to retrieve all discount codes from your CloudCart store.
List ImagesTool to retrieve all images from CloudCart.
List Order Billing AddressesTool to retrieve order billing addresses (read-only).
List Order PaymentsRetrieve payment information from orders.
List Order Payment V2Tool to retrieve order payment data from the CloudCart order-payment endpoint.
List Order ProductsRetrieve all order products from your CloudCart store (read-only).
List Order Products OptionsTool to retrieve order products options (read-only).
List Order ShippingTool to retrieve order shipping data.
List Order Shipping AddressesTool to retrieve a paginated list of order shipping addresses.
List Order StatusTool to retrieve all available order statuses from CloudCart.
List Payment ProvidersTool to retrieve all payment providers (read-only).
List PropertiesTool to retrieve all properties with optional pagination.
List Property OptionsTool to retrieve all property options with optional filtering and pagination.
List RedirectsTool to retrieve all redirects from CloudCart.
List Shipping ProvidersTool to retrieve all shipping providers (read-only).
List SubscribersTool to retrieve all subscribers from the store.
List Subscribers ChannelsTool to retrieve all subscriber channels.
List Subscribers TagsTool to retrieve all subscriber tags.
List Variant OptionsTool to retrieve all variant options.
List Variant ParametersTool to retrieve all variant parameters with pagination support.
List VariantsTool to retrieve all product variants with optional pagination and filtering.
List VendorsTool to retrieve a list of all vendors.
List WebhooksTool to retrieve all webhooks.
Remove from CartTool to remove an item from the cart.
Update Blog CategoryTool to update an existing blog category.
Update Blog PostTool to update an existing blog post.
Update Blog TagTool to update an existing blog tag.
Update Cart ItemTool to update the quantity of an item in the cart.
Update CategoryTool to update an existing category.
Update CustomerUpdates an existing customer's information in CloudCart.
Update Customer Billing AddressTool to update an existing customer billing address in CloudCart.
Update Customer GroupTool to update an existing customer group's name.
Update Customer Shipping AddressTool to update an existing customer shipping address in CloudCart.
Update Customer TagTool to update an existing customer tag in CloudCart.
Update Discount CodeTool to update an existing discount code in CloudCart.
Update Linked ProductUpdates linked product relationships for a specific product in CloudCart.
Update OrderTool to update an existing order.
Update ProductUpdates an existing product in CloudCart.
Update PropertyTool to update an existing property.
Update Property OptionTool to update an existing property option.
Update SubscriberTool to update an existing subscriber in CloudCart.
Update Subscribers ChannelTool to update an existing subscriber channel in CloudCart.
Update Subscriber TagTool to update an existing subscriber tag association in CloudCart.
Update VariantTool to update an existing product variant.
Update Variant OptionTool to update an existing variant option.
Update Variant ParameterTool to update an existing variant parameter for a product variant.
Update VendorUpdates an existing vendor's information in CloudCart.
Update WebhookTool to update an existing webhook configuration in CloudCart.

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

What is Composio SDK?

Composio's Composio SDK 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 Composio SDK

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

How the Composio SDK works

The Composio SDK 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 you begin, make sure you have:
  • Python 3.8/Node 16 or higher installed
  • A Composio account with the API key
  • An OpenAI API key
  • A Cloudcart account and project
  • Basic familiarity with async Python/Typescript

Getting API Keys for OpenAI, Composio, and Cloudcart

OpenAI API key (OPENAI_API_KEY)
  • Go to the OpenAI dashboard
  • Create an API key if you don't have one
  • Assign it to OPENAI_API_KEY in .env
Composio API key and user ID
  • Log into the Composio dashboard
  • Copy your API key from Settings
    • Use this as COMPOSIO_API_KEY
  • Pick a stable user identifier (email or ID)
    • Use this as COMPOSIO_USER_ID

Installing dependencies

pip install composio-llamaindex llama-index llama-index-llms-openai llama-index-tools-mcp python-dotenv

Create a new Python project and install the necessary dependencies:

  • composio-llamaindex: Composio's LlamaIndex integration
  • llama-index: Core LlamaIndex framework
  • llama-index-llms-openai: OpenAI LLM integration
  • llama-index-tools-mcp: MCP client for LlamaIndex
  • python-dotenv: Environment variable management

Set environment variables

bash
OPENAI_API_KEY=your-openai-api-key
COMPOSIO_API_KEY=your-composio-api-key
COMPOSIO_USER_ID=your-user-id

Create a .env file in your project root:

These credentials will be used to:

  • Authenticate with OpenAI's GPT-5 model
  • Connect to Composio's Tool Router
  • Identify your Composio user session for Cloudcart access

Import modules

import asyncio
import os
import dotenv

from composio import Composio
from composio_llamaindex import LlamaIndexProvider
from llama_index.core.agent.workflow import ReActAgent
from llama_index.core.workflow import Context
from llama_index.llms.openai import OpenAI
from llama_index.tools.mcp import BasicMCPClient, McpToolSpec

dotenv.load_dotenv()

Create a new file called cloudcart_llamaindex_agent.py and import the required modules:

Key imports:

  • asyncio: For async/await support
  • Composio: Main client for Composio services
  • LlamaIndexProvider: Adapts Composio tools for LlamaIndex
  • ReActAgent: LlamaIndex's reasoning and action agent
  • BasicMCPClient: Connects to MCP endpoints
  • McpToolSpec: Converts MCP tools to LlamaIndex format

Load environment variables and initialize Composio

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

if not OPENAI_API_KEY:
    raise ValueError("OPENAI_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:

This ensures missing credentials cause early, clear errors before the agent attempts to initialise.

Create a Tool Router session and build the agent function

async def build_agent() -> ReActAgent:
    composio_client = Composio(
        api_key=COMPOSIO_API_KEY,
        provider=LlamaIndexProvider(),
    )

    session = composio_client.create(
        user_id=COMPOSIO_USER_ID,
        toolkits=["cloudcart"],
    )

    mcp_url = session.mcp.url
    print(f"Composio MCP URL: {mcp_url}")

    mcp_client = BasicMCPClient(mcp_url, headers={"x-api-key": COMPOSIO_API_KEY})
    mcp_tool_spec = McpToolSpec(client=mcp_client)
    tools = await mcp_tool_spec.to_tool_list_async()

    llm = OpenAI(model="gpt-5")

    description = "An agent that uses Composio Tool Router MCP tools to perform Cloudcart actions."
    system_prompt = """
    You are a helpful assistant connected to Composio Tool Router.
    Use the available tools to answer user queries and perform Cloudcart actions.
    """
    return ReActAgent(tools=tools, llm=llm, description=description, system_prompt=system_prompt, verbose=True)

What's happening here:

  • We create a Composio client using your API key and configure it with the LlamaIndex provider
  • We then create a tool router MCP session for your user, specifying the toolkits we want to use (in this case, cloudcart)
  • The session returns an MCP HTTP endpoint URL that acts as a gateway to all your configured tools
  • LlamaIndex will connect to this endpoint to dynamically discover and use the available Cloudcart tools.
  • The MCP tools are mapped to LlamaIndex-compatible tools and plug them into the Agent.

Create an interactive chat loop

async def chat_loop(agent: ReActAgent) -> None:
    ctx = Context(agent)
    print("Type 'quit', 'exit', or Ctrl+C to stop.")

    while True:
        try:
            user_input = input("\nYou: ").strip()
        except (KeyboardInterrupt, EOFError):
            print("\nBye!")
            break

        if not user_input or user_input.lower() in {"quit", "exit"}:
            print("Bye!")
            break

        try:
            print("Agent: ", end="", flush=True)
            handler = agent.run(user_input, ctx=ctx)

            async for event in handler.stream_events():
                # Stream token-by-token from LLM responses
                if hasattr(event, "delta") and event.delta:
                    print(event.delta, end="", flush=True)
                # Show tool calls as they happen
                elif hasattr(event, "tool_name"):
                    print(f"\n[Using tool: {event.tool_name}]", flush=True)

            # Get final response
            response = await handler
            print()  # Newline after streaming
        except KeyboardInterrupt:
            print("\n[Interrupted]")
            continue
        except Exception as e:
            print(f"\nError: {e}")

What's happening here:

  • We're creating a direct terminal interface to chat with your Cloudcart database
  • The LLM's responses are streamed to the CLI for faster interaction.
  • The agent uses context to maintain conversation history
  • You can type 'quit' or 'exit' to stop the chat loop gracefully
  • Agent responses and any errors are displayed in a clear, readable format

Define the main entry point

async def main() -> None:
    agent = await build_agent()
    await chat_loop(agent)

if __name__ == "__main__":
    # Handle Ctrl+C gracefully
    signal.signal(signal.SIGINT, lambda s, f: (print("\nBye!"), exit(0)))
    try:
        asyncio.run(main())
    except KeyboardInterrupt:
        print("\nBye!")

What's happening here:

  • We're orchestrating the entire application flow
  • The agent gets built with proper error handling
  • Then we kick off the interactive chat loop so you can start talking to Cloudcart

Run the agent

npx ts-node llamaindex-agent.ts

When prompted, authenticate and authorise your agent with Cloudcart, then start asking questions.

Complete Code

Here's the complete code to get you started with Cloudcart and LlamaIndex:

import asyncio
import os
import signal
import dotenv

from composio import Composio
from composio_llamaindex import LlamaIndexProvider
from llama_index.core.agent.workflow import ReActAgent
from llama_index.core.workflow import Context
from llama_index.llms.openai import OpenAI
from llama_index.tools.mcp import BasicMCPClient, McpToolSpec

dotenv.load_dotenv()

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

if not OPENAI_API_KEY:
    raise ValueError("OPENAI_API_KEY is not set")
if not COMPOSIO_API_KEY:
    raise ValueError("COMPOSIO_API_KEY is not set")
if not COMPOSIO_USER_ID:
    raise ValueError("COMPOSIO_USER_ID is not set")

async def build_agent() -> ReActAgent:
    composio_client = Composio(
        api_key=COMPOSIO_API_KEY,
        provider=LlamaIndexProvider(),
    )

    session = composio_client.create(
        user_id=COMPOSIO_USER_ID,
        toolkits=["cloudcart"],
    )

    mcp_url = session.mcp.url
    print(f"Composio MCP URL: {mcp_url}")

    mcp_client = BasicMCPClient(mcp_url, headers={"x-api-key": COMPOSIO_API_KEY})
    mcp_tool_spec = McpToolSpec(client=mcp_client)
    tools = await mcp_tool_spec.to_tool_list_async()

    llm = OpenAI(model="gpt-5")
    description = "An agent that uses Composio Tool Router MCP tools to perform Cloudcart actions."
    system_prompt = """
    You are a helpful assistant connected to Composio Tool Router.
    Use the available tools to answer user queries and perform Cloudcart actions.
    """
    return ReActAgent(
        tools=tools,
        llm=llm,
        description=description,
        system_prompt=system_prompt,
        verbose=True,
    );

async def chat_loop(agent: ReActAgent) -> None:
    ctx = Context(agent)
    print("Type 'quit', 'exit', or Ctrl+C to stop.")

    while True:
        try:
            user_input = input("\nYou: ").strip()
        except (KeyboardInterrupt, EOFError):
            print("\nBye!")
            break

        if not user_input or user_input.lower() in {"quit", "exit"}:
            print("Bye!")
            break

        try:
            print("Agent: ", end="", flush=True)
            handler = agent.run(user_input, ctx=ctx)

            async for event in handler.stream_events():
                # Stream token-by-token from LLM responses
                if hasattr(event, "delta") and event.delta:
                    print(event.delta, end="", flush=True)
                # Show tool calls as they happen
                elif hasattr(event, "tool_name"):
                    print(f"\n[Using tool: {event.tool_name}]", flush=True)

            # Get final response
            response = await handler
            print()  # Newline after streaming
        except KeyboardInterrupt:
            print("\n[Interrupted]")
            continue
        except Exception as e:
            print(f"\nError: {e}")

async def main() -> None:
    agent = await build_agent()
    await chat_loop(agent)

if __name__ == "__main__":
    # Handle Ctrl+C gracefully
    signal.signal(signal.SIGINT, lambda s, f: (print("\nBye!"), exit(0)))
    try:
        asyncio.run(main())
    except KeyboardInterrupt:
        print("\nBye!")

Conclusion

You've successfully connected Cloudcart to LlamaIndex through Composio's Tool Router MCP layer. Key takeaways:
  • Tool Router dynamically exposes Cloudcart tools through an MCP endpoint
  • LlamaIndex's ReActAgent handles reasoning and orchestration; Composio handles integrations
  • The agent becomes more capable without increasing prompt size
  • Async Python provides clean, efficient execution of agent workflows
You can easily extend this to other toolkits like Gmail, Notion, Stripe, GitHub, and more by adding them to the toolkits parameter.

How to build Cloudcart MCP Agent with another framework

FAQ

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

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

Can I use Tool Router MCP with LlamaIndex?

Yes, you can. LlamaIndex 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 Cloudcart tools.

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

Yes, absolutely. You can configure which Cloudcart 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 Cloudcart data and credentials are handled as safely as possible.

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