How to integrate Hub Planner MCP with Pydantic AI

This guide walks you through connecting Hub Planner to Pydantic AI using the Composio tool router. By the end, you'll have a working Hub Planner agent that can show all upcoming project bookings for your team, log 8 hours timesheet for john doe, list all unassigned resources this month through natural language commands. This guide will help you understand how to give your Pydantic AI agent real control over a Hub Planner account through Composio's Hub Planner MCP server. Before we dive in, let's take a quick look at the key ideas and tools involved.

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Hub Planner is a smart resource management and scheduling platform for teams. It streamlines project planning, time tracking, and reporting for global organizations.

122 Tools

Introduction

This guide walks you through connecting Hub Planner to Pydantic AI using the Composio tool router. By the end, you'll have a working Hub Planner agent that can show all upcoming project bookings for your team, log 8 hours timesheet for john doe, list all unassigned resources this month through natural language commands.

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

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

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

The Hub Planner MCP server is an implementation of the Model Context Protocol that connects your AI agent and assistants like Claude, Cursor, etc directly to your Hub Planner account. It provides structured and secure access so your agent can perform Hub Planner operations on your behalf.

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

Add Clients to Project

Tool to add clients to a project by project ID.

Add project custom field choices

Add choices to a project custom field template of SELECT, RADIO, or CHECKBOX type.

Add Projects to Group

Tool to add projects to a project group in Hub Planner.

Add Project Tags

Tool to add tags to a Hub Planner project.

Add Resource Custom Field Choices

Tool to add choices to a resource custom field template of SELECT, RADIO, or CHECKBOX type.

Add Resources to Project

Tool to add resources to a project by project ID.

Add Resources to Resource Group

Tool to add resources to a resource group by group ID.

Add Resource Tags

Tool to add tags to a resource in Hub Planner.

Create Billing Rate

Tool to create a new billing rate in Hub Planner.

Create Booking

Tool to create a new booking for a resource on a project in Hub Planner.

Create Booking Category

Tool to create a new booking category in Hub Planner.

Create Client

Tool to create a new client in Hub Planner.

Create Cost Category

Tool to create a new project cost category in Hub Planner.

Create Event

Tool to create a new event in Hub Planner.

Create Holiday

Tool to create a new holiday in Hub Planner.

Create Milestone

Tool to create a new milestone for a project in Hub Planner.

Create Project

Tool to create a new project in Hub Planner.

Create Project Custom Field Template

Tool to create a new project custom field template in Hub Planner.

Create Project Group

Tool to create a new project group in Hub Planner.

Create Project Tag

Tool to create a new project tag in Hub Planner.

Create Resource

Tool to create a new resource in Hub Planner.

Create Resource Custom Field Template

Tool to create a new resource custom field template in Hub Planner.

Create Resource Tag

Tool to create a new resource tag in Hub Planner.

Create Time Entry

Tool to create a new time entry for a resource on a project in Hub Planner.

Create Vacation

Tool to create a new vacation request for a resource in Hub Planner.

Delete Billing Rate

Tool to delete a specific billing rate by ID in Hub Planner.

Delete Booking

Tool to delete a specific booking by ID in Hub Planner.

Delete Bookings

Tool to delete multiple bookings by IDs, resource ID, or project ID.

Delete Client

Tool to delete a specific client by ID in Hub Planner.

Delete Cost Category

Tool to delete a specific project cost category by ID in Hub Planner.

Delete Event

Tool to delete a specific event by ID in Hub Planner.

Delete Holiday

Tool to delete a specific holiday by ID in Hub Planner.

Delete Milestone

Tool to delete a specific milestone by ID in Hub Planner.

Delete Project

Tool to delete a specific project by ID in Hub Planner.

Delete Project Custom Field Template

Tool to delete a project custom field template by its ID.

Delete Project Group

Tool to delete a specific project group by ID in Hub Planner.

Delete Projects

Tool to delete multiple projects by their IDs in a single operation.

Delete Project Tag

Tool to delete a specific project tag by ID in Hub Planner.

Delete Resource

Tool to delete a specific resource by ID.

Delete Resource Custom Field Template

Tool to delete a specific resource custom field template by ID.

Delete resources

Tool to delete multiple resources by their IDs in a single operation.

Delete Resource Tag

Tool to delete a specific resource tag by ID in Hub Planner.

Delete Time Entries

Tool to delete multiple time entries by their IDs in a single operation.

Delete Time Entry

Tool to delete a specific time entry by ID in Hub Planner.

Delete Vacation

Tool to delete a specific vacation by ID in Hub Planner.

Get Billing Rate by ID

Tool to retrieve a specific billing rate by ID from Hub Planner.

Get Booking by ID

Tool to retrieve a specific booking by ID from Hub Planner.

Get Booking Category by ID

Tool to retrieve a specific booking category by ID from Hub Planner.

Get Client by ID

Tool to retrieve a specific client by ID from Hub Planner.

Get Cost Category

Tool to retrieve a specific project cost category by ID from Hub Planner.

Get Event by ID

Tool to retrieve a specific event by ID from Hub Planner.

Get Holiday by ID

Tool to retrieve a specific holiday by ID from Hub Planner.

Get Milestone

Tool to retrieve a specific milestone by ID from Hub Planner.

Get Project

Tool to retrieve a specific project by ID from Hub Planner.

Get Project Custom Field Template

Tool to retrieve a specific project custom field template by ID.

Get Project Custom Field Templates

Tool to retrieve all project custom field templates defined for your Hub Planner account.

Get Project Group

Tool to retrieve a specific project group by ID from Hub Planner.

Get Project Tags

Tool to retrieve all tags associated with a specific Hub Planner project.

Get Resource by ID

Tool to retrieve a specific resource by ID from Hub Planner.

Get Resource Custom Field Template

Tool to retrieve a specific resource custom field template by ID from Hub Planner.

Get Resource Custom Field Templates

Tool to retrieve custom field templates defined for resources in your Hub Planner account.

Get Resource Tags

Tool to retrieve all tags associated with a specific resource from Hub Planner.

Get Time Entry by ID

Tool to retrieve a specific time entry by ID from Hub Planner.

Get Vacation by ID

Tool to retrieve a specific vacation by ID from Hub Planner.

List Billing Rates

Tool to retrieve all billing rates from Hub Planner.

List Booking Categories

Tool to retrieve all booking categories from Hub Planner.

List Bookings

Tool to retrieve all bookings from Hub Planner with pagination support.

List Category Groups

Tool to get all category groups from Hub Planner.

List Clients

Tool to get all clients from Hub Planner.

List Cost Categories

Tool to retrieve all project cost categories from Hub Planner.

List Events

Tool to retrieve all events from Hub Planner.

List Holidays

Tool to retrieve all public holidays from Hub Planner.

List Project Groups

Tool to get all project groups from Hub Planner.

List Project Managers

Tool to get all project managers from Hub Planner.

List Projects

Tool to retrieve all projects from Hub Planner.

List Project Tags

Tool to retrieve all project tags from Hub Planner.

List Resource Groups

Tool to get all resource groups from Hub Planner.

List Resources

Tool to get all resources from Hub Planner.

List Resource Tags

Tool to get all resource tags from Hub Planner.

List Time Entries

Tool to get all time entries from Hub Planner.

List Unassigned Work

Tool to retrieve all unassigned work from Hub Planner.

List Vacations

Tool to retrieve all vacations from Hub Planner.

Patch Booking

Tool to partially update an existing booking in Hub Planner.

Patch Vacation

Tool to partially update an existing vacation by ID in Hub Planner.

Remove Client From Projects

Tool to remove a client from one or more projects in Hub Planner.

Remove Project From Groups

Tool to remove a project from one or more project groups in Hub Planner.

Remove Project Tag

Tool to remove a tag from a Hub Planner project.

Remove Resource from Projects

Tool to remove a resource from one or more projects in Hub Planner.

Remove Resource Tag

Tool to remove a tag from a resource.

Search Billing Rates

Tool to search billing rates in Hub Planner with filters.

Search Booking Categories

Tool to search booking categories in Hub Planner with filters.

Search Bookings

Tool to search bookings in Hub Planner with advanced filters.

Search Clients

Tool to search clients with filters in Hub Planner.

Search Cost Categories

Tool to search project cost categories in Hub Planner with filters.

Search Events

Tool to search events with filters in Hub Planner.

Search Holidays

Tool to search holidays with filters in Hub Planner.

Search Milestones

Tool to search milestones in Hub Planner with filters.

Search Project Custom Fields

Tool to search project custom field templates by type, label, or required status.

Search Projects

Tool to search projects with filters in Hub Planner.

Search Resource Custom Field Templates

Tool to search resource custom field templates by type, label, or other properties.

Search resources

Tool to search for resources with various filters in Hub Planner.

Search Time Entries

Tool to search time entries with filters in Hub Planner.

Search Vacations

Tool to search vacations in Hub Planner with advanced filters.

Set Project Managers

Tool to set project managers for a Hub Planner project.

Update Billing Rate

Tool to update an existing billing rate by ID in Hub Planner.

Update Booking

Tool to update an existing booking in Hub Planner by ID.

Update Booking Category

Tool to update an existing booking category by ID in Hub Planner.

Update Client

Tool to update an existing client by ID in Hub Planner.

Update Cost Category

Tool to update an existing project cost category by ID in Hub Planner.

Update Event

Tool to update an existing event in Hub Planner by ID.

Update Holiday

Tool to update an existing holiday by ID in Hub Planner.

Update Milestone

Tool to update an existing milestone by ID in Hub Planner.

Update Project Custom Field Template

Tool to update an existing project custom field template in Hub Planner.

Update Project Group

Tool to update an existing project group by ID in Hub Planner.

Update Hub Planner projects

Tool to update one or more projects in Hub Planner.

Update Project Tag

Tool to update an existing project tag by ID in Hub Planner.

Update Resource Custom Field Template

Tool to update an existing resource custom field template in Hub Planner.

Update Resource Group

Tool to update an existing resource group by ID in Hub Planner.

Update Resources

Tool to update one or more resources in Hub Planner.

Update Resource Tag

Tool to update an existing resource tag by ID in Hub Planner.

Update Time Entry

Tool to update an existing time entry by ID in Hub Planner.

Update Vacation

Tool to update an existing vacation by ID in Hub Planner.

FRAMEWORKS

How to build Hub Planner MCP Agent with another framework

OpenAI Agents SDK logo

OpenAI Agents SDK

Use Hub Planner MCP with OpenAI Agents SDK

Claude Agent SDK logo

Claude Agent SDK

Use Hub Planner MCP with Claude Agent SDK

Claude Code logo

Claude Code

Use Hub Planner MCP with Claude Code

Claude Cowork logo

Claude Cowork

Use Hub Planner MCP with Claude Cowork

Codex logo

Codex

Use Hub Planner MCP with Codex

OpenClaw logo

OpenClaw

Use Hub Planner MCP with OpenClaw

Hermes logo

Hermes

Use Hub Planner MCP with Hermes

CLI logo

CLI

Use Hub Planner MCP with CLI

Google ADK logo

Google ADK

Use Hub Planner MCP with Google ADK

LangChain logo

LangChain

Use Hub Planner MCP with LangChain

Vercel AI SDK logo

Vercel AI SDK

Use Hub Planner MCP with Vercel AI SDK

Mastra AI logo

Mastra AI

Use Hub Planner MCP with Mastra AI

LlamaIndex logo

LlamaIndex

Use Hub Planner MCP with LlamaIndex

CrewAI logo

CrewAI

Use Hub Planner MCP with CrewAI

FAQ

Frequently asked questions

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

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

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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.

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