How to integrate Hub Planner MCP with Google ADK

This guide walks you through connecting Hub Planner to Google ADK 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 Google ADK 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 Google ADK 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 Google ADK 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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TL;DR

Here's what you'll learn:
  • Get a Hub Planner account set up and connected to Composio
  • Install the Google ADK and Composio packages
  • Create a Composio Tool Router session for Hub Planner
  • Build an agent that connects to Hub Planner through MCP
  • Interact with Hub Planner using natural language

What is Google ADK?

Google ADK (Agents Development Kit) is Google's framework for building AI agents powered by Gemini models. It provides tools for creating agents that can use external services through the Model Context Protocol.

Key features include:

  • Gemini Integration: Native support for Google's Gemini models
  • MCP Toolset: Built-in support for Model Context Protocol tools
  • Streamable HTTP: Connect to external services through streamable HTTP
  • CLI and Web UI: Run agents via command line or web interface

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:
  • A Google API key for Gemini models
  • A Composio account and API key
  • Python 3.9 or later installed
  • Basic familiarity with Python
2

Getting API Keys for Google and Composio

Google API Key
  • Go to Google AI Studio and create an API key.
  • Copy the key and keep it safe. You will put this in GOOGLE_API_KEY.
Composio API Key and User ID
  • Log in to the Composio dashboard.
  • Go to Settings → API Keys and copy your Composio API key. Use this for COMPOSIO_API_KEY.
  • Decide on a stable user identifier to scope sessions, often your email or a user ID. Use this for COMPOSIO_USER_ID.
3

Install dependencies

bash
pip install google-adk composio python-dotenv

Inside your virtual environment, install the required packages.

What's happening:

  • google-adk is Google's Agents Development Kit
  • composio connects your agent to Hub Planner via MCP
  • python-dotenv loads environment variables
4

Set up ADK project

bash
adk create my_agent

Set up a new Google ADK project.

What's happening:

  • This creates an agent folder with a root agent file and .env file
5

Set environment variables

bash
GOOGLE_API_KEY=your-google-api-key
COMPOSIO_API_KEY=your-composio-api-key
COMPOSIO_USER_ID=your-user-id-or-email

Save all your credentials in the .env file.

What's happening:

  • GOOGLE_API_KEY authenticates with Google's Gemini models
  • COMPOSIO_API_KEY authenticates with Composio
  • COMPOSIO_USER_ID identifies the user for session management
6

Import modules and validate environment

python
import os
import warnings

from composio import Composio
from dotenv import load_dotenv
from google.adk.agents.llm_agent import Agent
from google.adk.tools.mcp_tool.mcp_session_manager import StreamableHTTPConnectionParams
from google.adk.tools.mcp_tool.mcp_toolset import McpToolset

load_dotenv()

warnings.filterwarnings("ignore", message=".*BaseAuthenticatedTool.*")

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

if not GOOGLE_API_KEY:
    raise ValueError("GOOGLE_API_KEY is not set in the environment.")
if not COMPOSIO_API_KEY:
    raise ValueError("COMPOSIO_API_KEY is not set in the environment.")
if not COMPOSIO_USER_ID:
    raise ValueError("COMPOSIO_USER_ID is not set in the environment.")
What's happening:
  • os reads environment variables
  • Composio is the main Composio SDK client
  • GoogleProvider declares that you are using Google ADK as the agent runtime
  • Agent is the Google ADK LLM agent class
  • McpToolset lets the ADK agent call MCP tools over HTTP
7

Create Composio client and Tool Router session

python
composio_client = Composio(api_key=COMPOSIO_API_KEY)

composio_session = composio_client.create(
    user_id=COMPOSIO_USER_ID,
    toolkits=["hub_planner"],
)

COMPOSIO_MCP_URL = composio_session.mcp.url,
print(f"Composio MCP URL: {COMPOSIO_MCP_URL}")
What's happening:
  • Authenticates to Composio with your API key
  • Declares Google ADK as the provider
  • Spins up a short-lived MCP endpoint for your user and selected toolkit
  • Stores the MCP HTTP URL for the ADK MCP integration
8

Set up the McpToolset and create the Agent

python
composio_toolset = McpToolset(
    connection_params=StreamableHTTPConnectionParams(
        url=COMPOSIO_MCP_URL,
        headers={"x-api-key": COMPOSIO_API_KEY}
    )
)

root_agent = Agent(
    model="gemini-2.5-flash",
    name="composio_agent",
    description="An agent that uses Composio tools to perform actions.",
    instruction=(
        "You are a helpful assistant connected to Composio. "
        "You have the following tools available: "
        "COMPOSIO_SEARCH_TOOLS, COMPOSIO_MULTI_EXECUTE_TOOL, "
        "COMPOSIO_MANAGE_CONNECTIONS, COMPOSIO_REMOTE_BASH_TOOL, COMPOSIO_REMOTE_WORKBENCH. "
        "Use these tools to help users with Hub Planner operations."
    ),
    tools=[composio_toolset],
)

print("\nAgent setup complete. You can now run this agent directly ;)")
What's happening:
  • Connects the ADK agent to the Composio MCP endpoint through McpToolset
  • Uses Gemini as the model powering the agent
  • Lists exact tool names in instruction to reduce misnamed tool calls
9

Run the agent

bash
# Run in CLI mode
adk run my_agent

# Or run in web UI mode
adk web

Execute the agent from the project root. The web command opens a web portal where you can chat with the agent.

What's happening:

  • adk run runs the agent in CLI mode
  • adk web . opens a web UI for interactive testing

Complete Code

Here's the complete code to get you started with Hub Planner and Google ADK:

python
import os
import warnings

from composio import Composio
from composio_google import GoogleProvider
from dotenv import load_dotenv
from google.adk.agents.llm_agent import Agent
from google.adk.tools.mcp_tool.mcp_session_manager import StreamableHTTPConnectionParams
from google.adk.tools.mcp_tool.mcp_toolset import McpToolset

load_dotenv()
warnings.filterwarnings("ignore", message=".*BaseAuthenticatedTool.*")

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

if not GOOGLE_API_KEY:
    raise ValueError("GOOGLE_API_KEY is not set in the environment.")
if not COMPOSIO_API_KEY:
    raise ValueError("COMPOSIO_API_KEY is not set in the environment.")
if not COMPOSIO_USER_ID:
    raise ValueError("COMPOSIO_USER_ID is not set in the environment.")

composio_client = Composio(api_key=COMPOSIO_API_KEY, provider=GoogleProvider())

composio_session = composio_client.create(
    user_id=COMPOSIO_USER_ID,
    toolkits=["hub_planner"],
)

COMPOSIO_MCP_URL = composio_session.mcp.url


composio_toolset = McpToolset(
    connection_params=StreamableHTTPConnectionParams(
        url=COMPOSIO_MCP_URL,
        headers={"x-api-key": COMPOSIO_API_KEY}
    )
)

root_agent = Agent(
    model="gemini-2.5-flash",
    name="composio_agent",
    description="An agent that uses Composio tools to perform actions.",
    instruction=(
        "You are a helpful assistant connected to Composio. "
        "You have the following tools available: "
        "COMPOSIO_SEARCH_TOOLS, COMPOSIO_MULTI_EXECUTE_TOOL, "
        "COMPOSIO_MANAGE_CONNECTIONS, COMPOSIO_REMOTE_BASH_TOOL, COMPOSIO_REMOTE_WORKBENCH. "
        "Use these tools to help users with Hub Planner operations."
    ),  
    tools=[composio_toolset],
)

print("\nAgent setup complete. You can now run this agent directly ;)")

Conclusion

You've successfully integrated Hub Planner with the Google ADK through Composio's MCP Tool Router. Your agent can now interact with Hub Planner using natural language commands.

Key takeaways:

  • The Tool Router approach dynamically routes requests to the appropriate Hub Planner tools
  • Environment variables keep your credentials secure and separate from code
  • Clear agent instructions reduce tool calling errors
  • The ADK web UI provides an interactive interface for testing and development

You can extend this setup by adding more toolkits to the toolkits array in your session configuration.

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

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. Google ADK 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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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.

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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.

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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.

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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.

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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.

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