How to integrate Order Desk MCP with Pydantic AI

This guide walks you through connecting Order Desk to Pydantic AI using the Composio tool router. By the end, you'll have a working Order Desk agent that can look up orders, add order items, create shipments, add order notes, and manage your inventory through natural language commands. This guide will help you understand how to give your Pydantic AI agent real control over a Order Desk account through Composio's Order Desk MCP server. Before we dive in, let's take a quick look at the key ideas and tools involved.

Get started for freeGet a demo
Order Desk logoOrder Desk
Api Key

Order Desk is an order management platform for ecommerce orders, shipments, inventory, and store data. It helps teams centralize fulfillment workflows across multiple ecommerce integrations.

20 Tools

Introduction

This guide walks you through connecting Order Desk to Pydantic AI using the Composio tool router. By the end, you'll have a working Order Desk agent that can look up orders, add order items, create shipments, add order notes, and manage your inventory through natural language commands.

This guide will help you understand how to give your Pydantic AI agent real control over a Order Desk account through Composio's Order Desk MCP server.

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

Also integrate Order Desk with

OpenAI Agents SDKClaude Agent SDKClaude CodeClaude CoworkCodexOpenClawHermesCLIGoogle ADKLangChainVercel AI SDKMastra AILlamaIndexCrewAI

TL;DR

Here's what you'll learn:
  • How to set up your Composio API key and User ID
  • How to create a Composio Tool Router session for Order Desk
  • How to attach an MCP Server to a Pydantic AI agent
  • How to stream responses and maintain chat history
  • How to build a simple REPL-style chat interface to test your Order Desk workflows

What is Pydantic AI?

Pydantic AI is a Python framework for building AI agents with strong typing and validation. It leverages Pydantic's data validation capabilities to create robust, type-safe AI applications.

Key features include:

  • Type Safety: Built on Pydantic for automatic data validation
  • MCP Support: Native support for Model Context Protocol servers
  • Streaming: Built-in support for streaming responses
  • Async First: Designed for async/await patterns

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

The Order Desk MCP server is an implementation of the Model Context Protocol that connects your AI agent and assistants like Claude, Cursor, etc directly to your Order Desk account. It provides structured and secure access to your orders, shipments, inventory, and store data, so your agent can find orders, manage line items, track shipments, update inventory, and organize orders on your behalf.

  • Order search and review: Have your agent find matching orders and retrieve their addresses, items, shipments, notes, discounts, and other details.
  • Order item management: Let the agent list, add, update, or remove line items from an existing order.
  • Shipment management: Direct your agent to create shipment records, review an order's shipments, update shipment details, or remove incorrect records.
  • Inventory management: Instruct your agent to search, create, review, update, or delete inventory items using details such as SKU, name, location, or update time.
  • Order organization and store context: Have your agent add permanent history notes, move orders into the right folder, and review store settings such as locale, timezone, and folder names.

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

Step by step09 STEPS
1

Prerequisites

Before starting, make sure you have:
  • Python 3.9 or higher
  • A Composio account with an active API key
  • Basic familiarity with Python and async programming
2

Getting API Keys for OpenAI and Composio

OpenAI API Key
  • Go to the OpenAI dashboard and create an API key. You'll need credits to use the models, or you can connect to another model provider.
  • Keep the API key safe.
Composio API Key
  • Log in to the Composio dashboard.
  • Navigate to your API settings and generate a new API key.
  • Store this key securely as you'll need it for authentication.
3

Install dependencies

bash
pip install composio pydantic-ai python-dotenv

Install the required libraries.

What's happening:

  • composio connects your agent to external SaaS tools like Order Desk
  • pydantic-ai lets you create structured AI agents with tool support
  • python-dotenv loads your environment variables securely from a .env file
4

Set up environment variables

bash
COMPOSIO_API_KEY=your_composio_api_key_here
USER_ID=your_user_id_here
OPENAI_API_KEY=your_openai_api_key

Create a .env file in your project root.

What's happening:

  • COMPOSIO_API_KEY authenticates your agent to Composio's API
  • USER_ID associates your session with your account for secure tool access
  • OPENAI_API_KEY to access OpenAI LLMs
5

Import dependencies

python
import asyncio
import os
from dotenv import load_dotenv
from composio import Composio
from pydantic_ai import Agent
from pydantic_ai.mcp import MCPServerStreamableHTTP

load_dotenv()
What's happening:
  • We load environment variables and import required modules
  • Composio manages connections to Order Desk
  • MCPServerStreamableHTTP connects to the Order Desk MCP server endpoint
  • Agent from Pydantic AI lets you define and run the AI assistant
6

Create a Tool Router Session

python
async def main():
    api_key = os.getenv("COMPOSIO_API_KEY")
    user_id = os.getenv("USER_ID")
    if not api_key or not user_id:
        raise RuntimeError("Set COMPOSIO_API_KEY and USER_ID in your environment")

    # Create a Composio Tool Router session for Order Desk
    composio = Composio(api_key=api_key)
    session = composio.create(
        user_id=user_id,
        toolkits=["order_desk"],
    )
    url = session.mcp.url
    if not url:
        raise ValueError("Composio session did not return an MCP URL")
What's happening:
  • We're creating a Tool Router session that gives your agent access to Order Desk tools
  • The create method takes the user ID and specifies which toolkits should be available
  • The returned session.mcp.url is the MCP server URL that your agent will use
7

Initialize the Pydantic AI Agent

python
# Attach the MCP server to a Pydantic AI Agent
order_desk_mcp = MCPServerStreamableHTTP(url, headers={"x-api-key": COMPOSIO_API_KEY})
agent = Agent(
    "openai:gpt-5",
    toolsets=[order_desk_mcp],
    instructions=(
        "You are a Order Desk assistant. Use Order Desk tools to help users "
        "with their requests. Ask clarifying questions when needed."
    ),
)
What's happening:
  • The MCP client connects to the Order Desk endpoint
  • The agent uses GPT-5 to interpret user commands and perform Order Desk operations
  • The instructions field defines the agent's role and behavior
8

Build the chat interface

python
# Simple REPL with message history
history = []
print("Chat started! Type 'exit' or 'quit' to end.\n")
print("Try asking the agent to help you with Order Desk.\n")

while True:
    user_input = input("You: ").strip()
    if user_input.lower() in {"exit", "quit", "bye"}:
        print("\nGoodbye!")
        break
    if not user_input:
        continue

    print("\nAgent is thinking...\n", flush=True)

    async with agent.run_stream(user_input, message_history=history) as stream_result:
        collected_text = ""
        async for chunk in stream_result.stream_output():
            text_piece = None
            if isinstance(chunk, str):
                text_piece = chunk
            elif hasattr(chunk, "delta") and isinstance(chunk.delta, str):
                text_piece = chunk.delta
            elif hasattr(chunk, "text"):
                text_piece = chunk.text
            if text_piece:
                collected_text += text_piece
        result = stream_result

    print(f"Agent: {collected_text}\n")
    history = result.all_messages()
What's happening:
  • The agent reads input from the terminal and streams its response
  • Order Desk API calls happen automatically under the hood
  • The model keeps conversation history to maintain context across turns
9

Run the application

python
if __name__ == "__main__":
    asyncio.run(main())
What's happening:
  • The asyncio loop launches the agent and keeps it running until you exit

Complete Code

Here's the complete code to get you started with Order Desk and Pydantic AI:

python
import asyncio
import os
from dotenv import load_dotenv
from composio import Composio
from pydantic_ai import Agent
from pydantic_ai.mcp import MCPServerStreamableHTTP

load_dotenv()

async def main():
    api_key = os.getenv("COMPOSIO_API_KEY")
    user_id = os.getenv("USER_ID")
    if not api_key or not user_id:
        raise RuntimeError("Set COMPOSIO_API_KEY and USER_ID in your environment")

    # Create a Composio Tool Router session for Order Desk
    composio = Composio(api_key=api_key)
    session = composio.create(
        user_id=user_id,
        toolkits=["order_desk"],
    )
    url = session.mcp.url
    if not url:
        raise ValueError("Composio session did not return an MCP URL")

    # Attach the MCP server to a Pydantic AI Agent
    order_desk_mcp = MCPServerStreamableHTTP(url, headers={"x-api-key": COMPOSIO_API_KEY})
    agent = Agent(
        "openai:gpt-5",
        toolsets=[order_desk_mcp],
        instructions=(
            "You are a Order Desk assistant. Use Order Desk tools to help users "
            "with their requests. Ask clarifying questions when needed."
        ),
    )

    # Simple REPL with message history
    history = []
    print("Chat started! Type 'exit' or 'quit' to end.\n")
    print("Try asking the agent to help you with Order Desk.\n")

    while True:
        user_input = input("You: ").strip()
        if user_input.lower() in {"exit", "quit", "bye"}:
            print("\nGoodbye!")
            break
        if not user_input:
            continue

        print("\nAgent is thinking...\n", flush=True)

        async with agent.run_stream(user_input, message_history=history) as stream_result:
            collected_text = ""
            async for chunk in stream_result.stream_output():
                text_piece = None
                if isinstance(chunk, str):
                    text_piece = chunk
                elif hasattr(chunk, "delta") and isinstance(chunk.delta, str):
                    text_piece = chunk.delta
                elif hasattr(chunk, "text"):
                    text_piece = chunk.text
                if text_piece:
                    collected_text += text_piece
            result = stream_result

        print(f"Agent: {collected_text}\n")
        history = result.all_messages()

if __name__ == "__main__":
    asyncio.run(main())

Conclusion

You've built a Pydantic AI agent that can interact with Order Desk through Composio's Tool Router. With this setup, your agent can perform real Order Desk actions through natural language. You can extend this further by:
  • Adding other toolkits like Gmail, HubSpot, or Salesforce
  • Building a web-based chat interface around this agent
  • Using multiple MCP endpoints to enable cross-app workflows (for example, Gmail + Order Desk for workflow automation)
This architecture makes your AI agent "agent-native", able to securely use APIs in a unified, composable way without custom integrations.
TOOLS

Supported Tools

Every Order Desk action and event your agent gets out of the box.

Add Order History Note

Append a timestamped note permanently to an existing order's history.

Add Order Item

Add one line item to an existing order.

Add Order Items

Add two to 10 line items sequentially to the same order and return a result for every processed item.

Create Inventory Item

Create one inventory item with a unique SKU and return its positive Order Desk ID and complete created representation.

Create Inventory Items

Create two to 10 inventory items sequentially and return each created ID or error.

Create Shipments

Create one or more shipment records across orders in one request and report the success or error returned for every shipment.

Delete Inventory Item

Permanently delete one inventory item by its positive Order Desk ID.

Delete Order Item

Permanently remove one line item from an order.

Delete Shipment

Permanently remove one shipment record from an order.

Get Inventory Item

Get one inventory item by its positive Order Desk ID.

Get Order

Get one order and its addresses, line items, shipments, metadata, notes, and discounts by Order Desk internal ID.

Get Store Metadata

Return safe store identity, locale, timezone, page-size settings, and folder IDs and names without exposing credentials or email configuration.

List Inventory Items

Search inventory items in the connected store by ID, SKU, name, metadata, manufacturer SKU, location, or update time.

List Order Items

Return all line items for one order.

List Orders

Find orders in the connected store using at least one narrowing filter and return one bounded page.

List Order Shipments

Return all shipments recorded for one order.

Move Orders

Move one or more orders to exactly one destination folder selected by positive ID or exact name, with a result for every order.

Update Inventory Items

Safely update selected fields on one or more inventory items while preserving every omitted field.

Update Order Item

Safely update selected fields on one order line item while preserving every omitted field.

Update Shipment

Safely update selected fields on one shipment while preserving every omitted field.

FRAMEWORKS

How to build Order Desk MCP Agent with another framework

OpenAI Agents SDK logo

OpenAI Agents SDK

Use Order Desk MCP with OpenAI Agents SDK

Claude Agent SDK logo

Claude Agent SDK

Use Order Desk MCP with Claude Agent SDK

Claude Code logo

Claude Code

Use Order Desk MCP with Claude Code

Claude Cowork logo

Claude Cowork

Use Order Desk MCP with Claude Cowork

Codex logo

Codex

Use Order Desk MCP with Codex

OpenClaw logo

OpenClaw

Use Order Desk MCP with OpenClaw

Hermes logo

Hermes

Use Order Desk MCP with Hermes

CLI logo

CLI

Use Order Desk MCP with CLI

Google ADK logo

Google ADK

Use Order Desk MCP with Google ADK

LangChain logo

LangChain

Use Order Desk MCP with LangChain

Vercel AI SDK logo

Vercel AI SDK

Use Order Desk MCP with Vercel AI SDK

Mastra AI logo

Mastra AI

Use Order Desk MCP with Mastra AI

LlamaIndex logo

LlamaIndex

Use Order Desk MCP with LlamaIndex

CrewAI logo

CrewAI

Use Order Desk MCP with CrewAI

FAQ

Frequently asked questions

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

Yes, you can. Pydantic AI 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 Order Desk tools.

Yes, absolutely. You can configure which Order Desk 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.

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 Order Desk data and credentials are handled as safely as possible.

Start with Order Desk.It takes 30 seconds.

Managed auth, hosted MCP servers, and every Order Desk tool your agent needs.Free to start.

Start building
Customer stories

Teams ship real agents on Composio

GET STARTED FOR FREEBOOK A DEMO
agent.aiZoomLettaGleanHubSpotAWSWabi

Karan skipped his own birthday party to fix our critical issue. It was 10pm and he diverted his Waymo to help us instead. This really sets the bar — it shows the commitment you need when users rely on your software.

Harsha Gaddipati
Harsha Gaddipati
Co-founder, Slashy

A lot of students tell us that the moment their connected tools start talking to each other inside Opennote feels almost magical. The agent just knows them, and it's immensely helped keep new users on the platform.

Abhi Arya
Abhi Arya
Co-founder, Opennote

We chose Composio over Pipedream because it delivered depth where it mattered — niche tools and tricky edge cases other platforms simply ignored. That gave us confidence to scale without compromising.

Nirman Dave
Nirman Dave
CEO, Zams

As a solo builder, shipping fast is life or death. The only way I can outcompete incumbents is by outmanoeuvring them. Getting bogged down managing agent auth would have been a death sentence.

Ryan Yu
Ryan Yu
Founder, Extra Thursday

Before Composio, adding tool integrations was slow and resource-intensive. Each one could take weeks of engineering time, and maintaining them meant constantly keeping up with API changes.

Tomisin Jenrola
Tomisin Jenrola
Founder & CEO, SwarmZero

With hands-on help from their founder, we integrated Gmail and Google Drive in just 30 minutes. This level of personal support and commitment is exactly what startups should strive for.

Jerome Leclanche
Jerome Leclanche
Co-Founder, Ingram Technologies