How to integrate Route4me MCP with Pydantic AI

This guide walks you through connecting Route4me to Pydantic AI using the Composio tool router. By the end, you'll have a working Route4me agent that can list all available delivery vehicles today, mark stop 12 on route 8 as completed, show vehicles with capacity over 1000 lbs through natural language commands. This guide will help you understand how to give your Pydantic AI agent real control over a Route4me account through Composio's Route4me MCP server. Before we dive in, let's take a quick look at the key ideas and tools involved.

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Route4Me is a Last Mile Routing API that automates route planning for logistics teams. It helps businesses save time and fuel with optimized, real-time delivery routes.

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Introduction

This guide walks you through connecting Route4me to Pydantic AI using the Composio tool router. By the end, you'll have a working Route4me agent that can list all available delivery vehicles today, mark stop 12 on route 8 as completed, show vehicles with capacity over 1000 lbs through natural language commands.

This guide will help you understand how to give your Pydantic AI agent real control over a Route4me account through Composio's Route4me MCP server.

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

Also integrate Route4me 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 Route4me
  • 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 Route4me 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 Route4me MCP server, and what's possible with it?

The Route4me MCP server is an implementation of the Model Context Protocol that connects your AI agent and assistants like Claude, Cursor, etc directly to your Route4me account. It provides structured and secure access to your fleet and route data, so your agent can perform actions like listing vehicles, retrieving asset details, updating destination statuses, and streamlining last-mile logistics on your behalf.

  • Full vehicle inventory retrieval: Instantly ask your agent to pull a complete list of all vehicles in your organization for planning and operational audits.
  • Vehicle data access for route planning: Get detailed information on each vehicle—including capacity and assignment details—to optimize delivery routes.
  • Automated destination status updates: Let your agent mark destinations as completed, skipped, or failed after deliveries or stops, keeping your records accurate in real time.
  • Streamlined delivery confirmation workflows: Have your agent confirm delivery outcomes automatically, ensuring your route progress is always up to date for dispatchers and drivers.

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 Route4me
  • 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 Route4me
  • MCPServerStreamableHTTP connects to the Route4me 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 Route4me
    composio = Composio(api_key=api_key)
    session = composio.create(
        user_id=user_id,
        toolkits=["route4me"],
    )
    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 Route4me 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
route4me_mcp = MCPServerStreamableHTTP(url, headers={"x-api-key": COMPOSIO_API_KEY})
agent = Agent(
    "openai:gpt-5",
    toolsets=[route4me_mcp],
    instructions=(
        "You are a Route4me assistant. Use Route4me tools to help users "
        "with their requests. Ask clarifying questions when needed."
    ),
)
What's happening:
  • The MCP client connects to the Route4me endpoint
  • The agent uses GPT-5 to interpret user commands and perform Route4me 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 Route4me.\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
  • Route4me 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 Route4me 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 Route4me
    composio = Composio(api_key=api_key)
    session = composio.create(
        user_id=user_id,
        toolkits=["route4me"],
    )
    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
    route4me_mcp = MCPServerStreamableHTTP(url, headers={"x-api-key": COMPOSIO_API_KEY})
    agent = Agent(
        "openai:gpt-5",
        toolsets=[route4me_mcp],
        instructions=(
            "You are a Route4me assistant. Use Route4me 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 Route4me.\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 Route4me through Composio's Tool Router. With this setup, your agent can perform real Route4me 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 + Route4me 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 Route4me action and event your agent gets out of the box.

Add Order Custom Field

Tool to add a new custom field definition for orders.

Add Route Note

Tool to add a note to a route or address destination.

Create Address

Tool to add a new address to the address book.

Create Avoidance Zone

Tool to create an avoidance zone with circular, rectangular, or polygon shape.

Create Location Type

Tool to create a new location type in the address book.

Create Master Route

Tool to create a new master route in Route4Me.

Create Custom Note Type

Tool to create a new custom note type in Route4me.

Create Route Optimization

Tool to create a new route optimization in Route4Me.

Create Optimization Profile

Tool to create a new optimization profile in Route4Me.

Create Order Custom Field

Tool to create a new custom field definition for orders.

Create Orders from Contacts

Tool to create orders from address book contacts.

Create Territory

Tool to create a new territory with circular, rectangular, or polygon shape.

Create Vehicle Capacity Profile

Tool to create a vehicle capacity profile with weight, volume, item count, and revenue limits.

Delete Address from Route

Tool to delete an address from a route.

Delete Addresses

Tool to delete addresses from the Route4Me address book.

Delete Avoidance Zone

Tool to delete an avoidance zone by territory_id.

Delete Configuration Setting

Tool to delete a member configuration setting by config_key.

Delete Current User

Tool to delete the current authenticated user account.

Delete Location Type

Tool to delete a location type from the address book.

Delete Optimization

Tool to remove optimization problems from the Route4Me database.

Delete Optimization Profile

Tool to delete an optimization profile by ID.

Delete Order Custom Field

Tool to delete an order custom field by ID.

Delete Route V4

Tool to delete one or more routes by route_id.

Delete Territory

Tool to delete a territory by territory_id.

Delete Vehicle Capacity Profile by ID

Tool to delete a vehicle capacity profile by ID.

Dispatch Routes

Tool to approve or revoke routes for execution in Route4Me.

Display Datatable Config

Tool to retrieve datatable configuration for vehicle capacity profiles.

Duplicate Routes

Tool to duplicate one or more existing routes.

Find Address

Tool to retrieve detailed information about a specific address from the Route4Me address book.

Geocode Address

Tool to geocode an address and obtain its coordinates.

Geocode Address (Body)

Tool to geocode an address by sending a body payload with the address and options.

Bulk Geocode Addresses

Tool to geocode multiple addresses in a single request.

Geocode Address Forward

Tool to convert an address to geographic coordinates using forward geocoding.

Get Activity Feed

Tool to retrieve activities from the Route4Me activity feed with optional filtering and pagination.

Get Address

Tool to get address/destination information from a route.

Get Address Book Groups

Tool to retrieve address book groups from Route4Me.

Get Addresses from Address Book

Tool to retrieve addresses from the Route4Me address book.

Get Async Export Tracking History

Tool to save tracking history file via async export.

Get All Territories (Avoidance Zones v5)

Tool to retrieve all avoidance zones (territories) using API v5.

Get Avoidance Zone By ID

Tool to retrieve a specific avoidance zone by its territory ID.

Get Clustered Locations

Tool to retrieve locations grouped by geographic proximity using geohash clustering.

Get Current Member Information

Tool to retrieve the current authenticated member's information.

Get Activity Feed

Tool to retrieve all activities from the Route4Me activity feed.

Get Last Scheduled Route for Member

Tool to retrieve the most recently scheduled route for a specific member as of today.

Get Location Heatmap

Tool to retrieve a heat map of location clusters from the address book.

Get Location Service-Time Heatmap

Tool to retrieve location service-time heatmap data for address book locations.

Get Location Type

Tool to get location type details by ID.

Get Member Configuration Settings

Tool to get member configuration settings with optional filtering.

Get Note Custom Types

Tool to retrieve all custom note types configured for the account.

Get Optimization Profile

Tool to retrieve detailed information about an optimization profile by its unique identifier.

Get Route Destination By ID

Tool to get a route address/destination by its ID.

Get Route Info

Tool to get detailed route information by route ID.

Get Route List

Tool to retrieve a list of routes with filtering and pagination.

Get Route Settings

Tool to get route settings with detailed information including waypoints, optimization settings, and delivery details.

Get Territories with Location Counts

Tool to retrieve territories with location counts for geographic analysis.

Get Territory

Tool to retrieve territory information by ID or get all territories.

Submit Device Tracking Data

Tool to submit device GPS tracking information to Route4Me.

Get Tracking History Export

Tool to export tracking history file from Route4Me.

Get User By ID

Tool to retrieve a sub-user by their unique ID.

Get User Locations

Tool to view locations of all users/drivers in real-time.

Get User Modification History

Tool to get user modification history from Route4Me.

Get User Template

Tool to retrieve the template of a sub-user with detailed information including contact information, preferences, and account status.

Get User Information (v4)

Tool to retrieve authenticated user information in v4 format.

Get Vehicles

Tool to retrieve details of vehicles in the organization.

Get Vehicle Capacity Profile As Datatable

Tool to retrieve vehicle capacity profiles in datatable format with pagination.

Get Vehicle Capacity Profile by ID

Tool to retrieve a specific vehicle capacity profile by its ID.

Get Vehicle Capacity Profile Page Config

Tool to retrieve vehicle capacity profile page configuration including unit settings.

Get Vehicle Capacity Profiles

Tool to retrieve vehicle capacity profiles with weight, volume, and item constraints.

List Location Types

Tool to retrieve location type definitions used in the address book system.

List Optimization Profiles

Tool to retrieve optimization profiles with settings and configuration details.

List Optimizations

Tool to get a list of all optimizations or retrieve a single optimization by ID.

List Order Custom Fields

Tool to retrieve all order custom field definitions from Route4Me v5.

List Route Directions

Tool to get detailed route directions including turn-by-turn navigation information for each stop.

List Team Users

Tool to get the list of team members/users in the account.

List Users By IDs

Tool to retrieve detailed information about team members by their member IDs.

List Team Users (Paginated)

Tool to get a paginated list of team members/users in the account.

Lookup For New Destination

Tool to lookup optimal routes for inserting a new destination.

Merge Routes

Tool to merge multiple routes into a single target route.

Move Route Destination

Tool to move a destination from one route to another.

Preview Route Assignment

Tool to generate a preview of route assignments based on filters, grouping, sorting, and assignment strategy without applying changes.

Re-run Optimization

Tool to re-optimize an existing optimization problem by updating route parameters and/or addresses.

Reverse Geocode Address

Tool to reverse geocode coordinates to obtain an address.

Set Destination Status

Tool to set or update the status of a route destination.

Set Route Rating

Tool to set a rating for a route.

Set Route Tracking Data

Tool to insert tracking data for a route.

Update Address

Tool to update an existing address in the Route4Me address book.

Update Avoidance Zone

Tool to update an existing avoidance zone.

Update Location Type

Tool to update an existing location type in the address book.

Update Member Configuration Setting

Tool to update a member configuration setting.

Update Custom Note Type

Tool to update an existing custom note type in Route4Me.

Update Optimization Profile

Tool to update an existing optimization profile.

Update Order Custom Field

Tool to update an existing order custom field in Route4Me.

Update Routes

Tool to bulk update multiple routes in a single operation.

Update Route Settings

Tool to update route settings including optimization parameters, distance units, and device types.

Update Route V4

Tool to update route parameters and addresses in Route4Me.

Update Territory

Tool to update an existing territory.

Update Vehicle Capacity Profile By ID

Tool to update an existing vehicle capacity profile by ID.

FRAMEWORKS

How to build Route4me MCP Agent with another framework

OpenAI Agents SDK logo

OpenAI Agents SDK

Use Route4me MCP with OpenAI Agents SDK

Claude Agent SDK logo

Claude Agent SDK

Use Route4me MCP with Claude Agent SDK

Claude Code logo

Claude Code

Use Route4me MCP with Claude Code

Claude Cowork logo

Claude Cowork

Use Route4me MCP with Claude Cowork

Codex logo

Codex

Use Route4me MCP with Codex

OpenClaw logo

OpenClaw

Use Route4me MCP with OpenClaw

Hermes logo

Hermes

Use Route4me MCP with Hermes

CLI logo

CLI

Use Route4me MCP with CLI

Google ADK logo

Google ADK

Use Route4me MCP with Google ADK

LangChain logo

LangChain

Use Route4me MCP with LangChain

Vercel AI SDK logo

Vercel AI SDK

Use Route4me MCP with Vercel AI SDK

Mastra AI logo

Mastra AI

Use Route4me MCP with Mastra AI

LlamaIndex logo

LlamaIndex

Use Route4me MCP with LlamaIndex

CrewAI logo

CrewAI

Use Route4me MCP with CrewAI

FAQ

Frequently asked questions

With a standalone Route4me MCP server, the agents and LLMs can only access a fixed set of Route4me tools tied to that server. However, with the Composio Tool Router, agents can dynamically load tools from Route4me 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 Route4me tools.

Yes, absolutely. You can configure which Route4me 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 Route4me 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.

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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