How to integrate Simla com MCP with Pydantic AI

This guide walks you through connecting Simla com to Pydantic AI using the Composio tool router. By the end, you'll have a working Simla com agent that can create a new customer with email and phone, update order status for a specific order, list customers who registered this week through natural language commands. This guide will help you understand how to give your Pydantic AI agent real control over a Simla com account through Composio's Simla com MCP server. Before we dive in, let's take a quick look at the key ideas and tools involved.

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Api Key

Simla.com is a platform for integrating delivery services, managing orders, and handling customer data through robust APIs. It streamlines logistics, order tracking, and customer management for fast-growing businesses.

141 Tools

Introduction

This guide walks you through connecting Simla com to Pydantic AI using the Composio tool router. By the end, you'll have a working Simla com agent that can create a new customer with email and phone, update order status for a specific order, list customers who registered this week through natural language commands.

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

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

Also integrate Simla com 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 Simla com
  • 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 Simla com 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 Simla com MCP server, and what's possible with it?

The Simla com MCP server is an implementation of the Model Context Protocol that connects your AI agent and assistants like Claude, Cursor, etc directly to your Simla com account. It provides structured and secure access to customer records, order management, delivery integration, and custom field data, so your agent can perform actions like creating orders, managing customers, updating tasks, and extending your CRM—all on your behalf.

  • Customer management and updates: Easily create new customers, update their details, or fetch specific customer profiles using flexible filters and identifiers.
  • Order creation and editing: Let your agent register new orders, update existing ones, or retrieve order information to streamline your sales and fulfillment workflows.
  • Custom field management: Enable your agent to create or update custom metadata fields for orders, customers, or companies, so your CRM data model can adapt to your business needs.
  • Task automation and tracking: Automatically create new tasks, assign them to team members, and keep all task details up to date for efficient collaboration and follow-up.
  • Bulk customer retrieval and segmentation: Fetch lists of customers with custom filters to support segmentation, analysis, or targeted outreach directly from your agent.

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 Simla com
  • 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 Simla com
  • MCPServerStreamableHTTP connects to the Simla com 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 Simla com
    composio = Composio(api_key=api_key)
    session = composio.create(
        user_id=user_id,
        toolkits=["simla_com"],
    )
    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 Simla com 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
simla_com_mcp = MCPServerStreamableHTTP(url, headers={"x-api-key": COMPOSIO_API_KEY})
agent = Agent(
    "openai:gpt-5",
    toolsets=[simla_com_mcp],
    instructions=(
        "You are a Simla com assistant. Use Simla com tools to help users "
        "with their requests. Ask clarifying questions when needed."
    ),
)
What's happening:
  • The MCP client connects to the Simla com endpoint
  • The agent uses GPT-5 to interpret user commands and perform Simla com 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 Simla com.\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
  • Simla com 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 Simla com 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 Simla com
    composio = Composio(api_key=api_key)
    session = composio.create(
        user_id=user_id,
        toolkits=["simla_com"],
    )
    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
    simla_com_mcp = MCPServerStreamableHTTP(url, headers={"x-api-key": COMPOSIO_API_KEY})
    agent = Agent(
        "openai:gpt-5",
        toolsets=[simla_com_mcp],
        instructions=(
            "You are a Simla com assistant. Use Simla com 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 Simla com.\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 Simla com through Composio's Tool Router. With this setup, your agent can perform real Simla com 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 + Simla com 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 Simla com action and event your agent gets out of the box.

Add Customer Interaction Favorite

Tool to add a product offer to a customer's list of favorites.

Combine Customers

Tool to combine multiple customers into one.

Combine Corporate Customers

Tool to combine multiple corporate customers into one.

Combine Orders

Tool to combine two orders into one.

Create Cost

Create a new cost record in Simla CRM.

Create Customer

Creates a new customer in Simla.

Create Corporate Customer

Creates a new corporate customer in Simla.

Create Customer Interaction Cart Set

Tool to create or overwrite shopping cart data for a customer.

Create Corporate Customer Address

Creates a new address for a corporate customer in Simla.

Create Corporate Customer Company

Tool to create a company for a corporate customer in Simla.

Create Corporate Customer Contact

Tool to create a link between a corporate customer and a contact person.

Create Corporate Customer Note

Tool to create a note for a corporate customer.

Create Customer Note

Tool to create a note for a customer.

Create Custom Field

Tool to create a custom field for a specified entity in Simla.

Create Custom Fields Dictionary

Tool to create a custom fields dictionary with elements.

Calculate Loyalty Discount

Tool to calculate maximum loyalty discount and bonuses for an order.

Create Order

Create a new order in Simla with customer details and line items.

Create Orders Link

Tool to create a link between multiple orders in Simla.

Create Order Pack

Tool to create a new order pack in Simla.

Create Order Payment

Create a new payment record for an order in Simla CRM.

Create Reference Courier

Tool to create a new courier in Simla.

Create Reference Currency

Tool to create a new currency in Simla.

Create Store Inventories Upload

Tool to batch update inventory quantities and purchase prices across warehouses/stores.

Create Store Product Groups

Tool to create a new product group in Simla.

Batch Create Store Products

Tool to batch create products and services in the store catalog.

Create Task

Tool to create a new task.

Create Web Analytics Visits Upload

Tool to batch upload web analytics visit records to Simla CRM.

Delete Cost

Tool to delete a cost by ID.

Delete Corporate Customer Note

Tool to delete a corporate customer note by ID.

Delete Customer Note

Tool to delete a customer note by ID.

Delete Order Payment

Tool to delete an order payment by ID.

Edit Cost

Tool to edit an existing cost record by ID.

Edit Customer

Tool to edit an existing customer.

Edit Corporate Customer

Tool to edit an existing corporate customer.

Edit Corporate Customer Address

Tool to edit an address for a corporate customer.

Edit Corporate Customer Company

Tool to edit a company associated with a corporate customer.

Edit Corporate Customer Contact

Tool to edit the link between a corporate customer and a contact person.

Edit Custom Field

Edit an existing custom field's properties by entity type and field code.

Edit Custom Fields Dictionary

Tool to edit an existing custom fields directory by code.

Edit Delivery Generic Setting

Tool to register or edit a delivery service integration configuration.

Edit File

Tool to edit an existing file by ID.

Edit Integration Module

Tool to create or edit an integration module configuration.

Edit Order

Tool to edit an existing order by external ID.

Edit Orders Payment

Tool to edit an existing order payment.

Edit Reference Cost Group

Tool to edit an existing cost group by code.

Edit Reference Cost Item

Tool to edit an existing cost item reference by code.

Edit Reference Courier

Tool to edit an existing courier by ID.

Edit Reference Currency

Tool to edit an existing currency configuration by ID.

Edit Reference Delivery Service

Tool to edit an existing delivery service by code.

Edit Reference Delivery Type

Tool to create or edit a delivery type in Simla.

Edit Reference Order Method

Tool to edit an existing order method reference by code.

Edit Reference Order Type

Tool to create or edit an order type by code.

Edit Reference Payment Status

Tool to edit an existing payment status reference by code.

Edit Reference Payment Type

Tool to edit an existing payment type or create a new one by code.

Edit Reference Price Type

Tool to edit an existing price type in the reference data.

Edit Product Status

Tool to create or edit product status in the reference directory.

Edit Reference Statuses

Tool to edit an existing order status reference by code.

Edit Reference Stores

Tool to create or edit a warehouse/store by code.

Edit Reference Subscription

Tool to create or edit a subscription category in Simla.

Edit Reference Unit

Tool to create or edit a unit of measurement reference by code.

Edit Store Product Group

Tool to edit an existing product group by external ID.

Edit Store Products Batch

Tool to batch edit multiple products and services at once.

Edit Store Setting

Tool to register or update warehouse system configuration in Simla.

Edit Task

Tool to edit an existing task.

Edit Telephony Setting

Tool to create or edit a telephony integration setting in Simla.

Fix Corporate Customers External IDs

Tool to perform mass recording of corporate customer external IDs in Simla.

Fix Customers External IDs

Tool to perform mass recording of customer external IDs in Simla.

Fix Orders External IDs

Tool to perform mass recording of order external IDs in Simla.

Get API Credentials

Tool to retrieve available API methods and stores for the current API key.

Get API Versions

Tool to retrieve a list of available API versions.

Get Cost

Retrieves detailed information about a specific cost record by its ID.

Get Customer

Retrieves detailed information about a specific customer by ID or external ID.

Get Corporate Customer

Retrieves detailed information about a corporate customer by external ID.

Get Customer Interaction Favorites

Tool to retrieve a list of favorite product offers for a specific customer.

Get Customers

Tool to retrieve a list of customers.

Get Corporate Customers

Tool to retrieve a list of corporate customers matching the specified filters.

Get Corporate Customer Companies

Tool to retrieve the list of companies associated with a corporate customer contact person.

Get Corporate Customers History

Tool to retrieve corporate customer change history for synchronization or audit purposes.

Get Corporate Customers Notes

Tool to retrieve a list of corporate customer notes.

Get Customers History

Tool to retrieve customer change history for synchronization or audit purposes.

Get Customers Notes

Tool to retrieve a list of customer notes.

Get Custom Field

Tool to retrieve detailed information about a specific custom field by entity and code.

Get Custom Fields

Tool to list custom fields.

Get Custom Fields Dictionaries

Tool to retrieve the list of custom dictionaries.

Get Custom Fields Dictionary

Tool to retrieve a custom fields dictionary by its code identifier.

Get Delivery Generic Setting

Tool to retrieve integration configuration for a delivery module instance.

Get Delivery Shipments

Tool to retrieve a list of delivery shipments.

Get Files

Tool to retrieve a list of files.

Get Loyalty Accounts

Tool to retrieve a list of customer loyalty program accounts.

Get Loyalty Bonus Operations

Tool to retrieve the history of bonus account operations for all participations.

Get Loyalty Loyalties

Tool to retrieve a list of loyalty programs.

Get Order

Tool to retrieve detailed information about a specific order.

Get Orders

Tool to retrieve a list of orders.

Get Orders History

Tool to retrieve order change history.

Get Orders Packs History

Tool to retrieve the history of order packing changes.

Get Products

Tool to retrieve a list of products.

Get Reference Cost Groups

Tool to retrieve a list of all cost groups configured in the system.

Get Reference Cost Items

Tool to retrieve a list of all cost items configured in the system.

Get Reference Countries

Tool to retrieve a list of all available country ISO codes in the system.

Get Reference Couriers

Tool to retrieve the list of available couriers.

Get Reference Currencies

Tool to retrieve the list of all configured currencies in the system.

Get Reference Delivery Services

Tool to retrieve a list of all configured delivery services in the system.

Get Reference Delivery Types

Tool to retrieve the list of delivery types from the system.

Get Reference Legal Entities

Tool to retrieve a list of all configured legal entities in the system.

Get MessageGateway Channels

Tool to retrieve a list of all MessageGateway channels in the system.

Get Reference Order Methods

Tool to retrieve a list of all available order methods in the system.

Get Reference Order Types

Tool to retrieve the list of order types from the system.

Get Reference Payment Statuses

Tool to retrieve the list of payment statuses configured in the system.

Get Reference Payment Types

Tool to retrieve a list of all configured payment types in the system.

Get Reference Price Types

Tool to retrieve the list of price types from the reference data.

Get Product Statuses

Tool to retrieve the list of all product statuses configured in the system.

Get Reference Statuses

Tool to retrieve the list of order statuses from the system.

Get Reference Status Groups

Tool to retrieve the list of all order status groups in the system.

Get Reference Subscriptions

Tool to retrieve the list of all subscription categories in the system.

Get Reference Units

Tool to retrieve the list of units of measurement from the system.

Get Segments

Tool to retrieve a list of customer segments.

Get Settings

Tool to retrieve system settings including default currency, language, timezone, and message gateway configuration.

Get Sites

Tool to retrieve a list of all configured sites/stores in the system.

Get Statistic Update

Tool to trigger an update of CRM basic statistics.

Get Store Inventories

Tool to retrieve store inventories with leftover stocks and purchasing prices.

Get Store Offers

Tool to retrieve a list of store offers with pagination support.

Get Store Products Properties

Tool to retrieve a list of product properties from the store.

Get Store Products Properties Values

Tool to retrieve product property values from the store.

Get Stores

Tool to retrieve a list of all warehouses/stores in the system.

Get Task

Retrieves detailed information about a specific task by its ID.

Get Tasks

Tool to retrieve a list of tasks with optional filters.

Get Tasks Comments

Tool to retrieve comments on a specific task by task ID.

Get Tasks History

Tool to retrieve task change history.

Get Telephony Setting

Tool to retrieve telephony integration settings by code.

Get User

Tool to retrieve detailed information about a specific user by ID.

Get User Groups

Tool to retrieve a list of user groups with their permissions and configuration.

Get Users

Tool to retrieve a list of users.

Update Customer Subscriptions

Tool to subscribe or unsubscribe a customer to mailing channels.

Update User Status

Tool to change a user's status.

Upload Costs

Tool to batch upload cost records to Simla CRM.

Upload Customers

Tool to batch upload customer records to Simla CRM.

Upload Corporate Customers

Tool to batch upload corporate customers to Simla.

Upload Orders

Upload multiple orders to Simla in a single batch operation.

Upload Store Prices

Tool to batch update SKU prices in Simla store catalog.

Upload Web Analytics Client IDs

Tool to batch upload web analytics client IDs to Simla CRM for tracking purposes.

Upload Web Analytics Sources

Tool to batch upload web analytics sources to Simla CRM.

FRAMEWORKS

How to build Simla com MCP Agent with another framework

OpenAI Agents SDK logo

OpenAI Agents SDK

Use Simla com MCP with OpenAI Agents SDK

Claude Agent SDK logo

Claude Agent SDK

Use Simla com MCP with Claude Agent SDK

Claude Code logo

Claude Code

Use Simla com MCP with Claude Code

Claude Cowork logo

Claude Cowork

Use Simla com MCP with Claude Cowork

Codex logo

Codex

Use Simla com MCP with Codex

OpenClaw logo

OpenClaw

Use Simla com MCP with OpenClaw

Hermes logo

Hermes

Use Simla com MCP with Hermes

CLI logo

CLI

Use Simla com MCP with CLI

Google ADK logo

Google ADK

Use Simla com MCP with Google ADK

LangChain logo

LangChain

Use Simla com MCP with LangChain

Vercel AI SDK logo

Vercel AI SDK

Use Simla com MCP with Vercel AI SDK

Mastra AI logo

Mastra AI

Use Simla com MCP with Mastra AI

LlamaIndex logo

LlamaIndex

Use Simla com MCP with LlamaIndex

CrewAI logo

CrewAI

Use Simla com MCP with CrewAI

FAQ

Frequently asked questions

With a standalone Simla com MCP server, the agents and LLMs can only access a fixed set of Simla com tools tied to that server. However, with the Composio Tool Router, agents can dynamically load tools from Simla com 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 Simla com tools.

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

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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