How to integrate Rentman MCP with Claude Agent SDK

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Introduction

This guide walks you through connecting Rentman to the Claude Agent SDK using the Composio tool router. By the end, you'll have a working Rentman agent that can list all crew assignments for this week, show available equipment for project 1234, create new project booking for next month through natural language commands.

This guide will help you understand how to give your Claude Agent SDK agent real control over a Rentman account through Composio's Rentman MCP server.

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

TL;DR

Here's what you'll learn:
  • Get and set up your Claude/Anthropic and Composio API keys
  • Install the necessary dependencies
  • Initialize Composio and create a Tool Router session for Rentman
  • Configure an AI agent that can use Rentman as a tool
  • Run a live chat session where you can ask the agent to perform Rentman operations

What is Claude Agent SDK?

The Claude Agent SDK is Anthropic's official framework for building AI agents powered by Claude. It provides a streamlined interface for creating agents with MCP tool support and conversation management.

Key features include:

  • Native MCP Support: Built-in support for Model Context Protocol servers
  • Permission Modes: Control tool execution permissions
  • Streaming Responses: Real-time response streaming for interactive applications
  • Context Manager: Clean async context management for sessions

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

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

Supported Tools & Triggers

Tools
Delete AppointmentTool to delete an appointment by its unique ID.
Delete Appointmentcrew ItemTool to delete an appointmentcrew item by its numeric ID.
Delete ContactTool to delete a contact by its ID.
Delete contact personTool to delete a contact person from Rentman by their numeric ID.
Delete Cost ItemTool to delete a cost item in Rentman by its numeric ID.
Delete Crew AvailabilityTool to delete a crew availability item by its ID.
Delete Project RequestTool to delete a project request by its ID.
Delete Project Request Equipment ItemTool to delete a project request equipment item by its ID.
Delete Time RegistrationTool to delete a time registration item in Rentman by its numeric ID.
Get Accessories CollectionTool to retrieve a collection of accessories from Rentman.
Get Appointment CrewTool to retrieve the linked crew members for a specific appointment.
Get Appointmentcrew CollectionTool to retrieve appointmentcrew collection from Rentman.
Get Appointments CollectionTool to retrieve a collection of appointments from Rentman.
Get Contact ContactpersonsTool to retrieve all contactpersons linked to a specific contact in Rentman.
Get Contact File FoldersTool to get file folders linked to a contact.
Get Contact FilesTool to get files linked to a contact.
Get Contact Person File FoldersTool to retrieve file folders linked to a contact person in Rentman.
Get Contact Person FilesTool to retrieve files linked to a contact person in Rentman.
Get Contact PersonsTool to retrieve the collection of contact persons from Rentman.
Get Contacts CollectionTool to retrieve a collection of contacts from Rentman.
Get contract invoicelinesRetrieves invoicelines linked to a specific contract.
Get Contract FilesTool to retrieve files linked to a specific contract.
Get Contracts CollectionTool to retrieve a collection of contracts from Rentman.
Get Costs CollectionTool to retrieve costs collection from Rentman.
Get Crew Member AppointmentsTool to retrieve appointments for a specific crew member.
Get Crew AvailabilityTool to retrieve crew availability records for a specific crew member in Rentman.
Get Crew Availability CollectionTool to retrieve crew availability collection from Rentman.
Get Crew CollectionTool to retrieve crew collection from Rentman.
Get Crew File FoldersTool to retrieve file folders linked to a crew member.
Get Crew FilesTool to retrieve files linked to a crew member.
Get Crew MemberTool to retrieve a crew member item by ID from Rentman.
Get Crewrates CollectionTool to retrieve crewrates collection from Rentman.
Get Crew RatesTool to get crew rates linked collection for a specific crew member.
Get Equipment AccessoriesTool to get accessories linked to a specific equipment item.
Get equipment collectionTool to get the equipment collection from Rentman.
Get Equipment File FoldersTool to get file folders linked to equipment.
Get Equipment FilesTool to get files linked to equipment.
Get Equipment RepairsTool to retrieve repairs linked to a specific equipment item.
Get Equipment Serial NumbersTool to retrieve serial numbers linked to a specific equipment item.
Get Equipment Sets Content CollectionTool to retrieve the equipment sets content collection from Rentman.
Get Equipment Sets ContentTool to get equipment sets content linked collection for a specific equipment item.
Get Equipment StockmovementsTool to get stockmovements linked collection for a specific equipment item.
Get Files CollectionTool to retrieve files collection from Rentman.
Get Folder ItemTool to retrieve a folder item by ID from Rentman.
Get Folders CollectionTool to retrieve folders collection from Rentman.
Get Invoice FilesTool to retrieve files linked to an invoice in Rentman.
Get Invoice InvoicelinesTool to retrieve invoicelines linked to a specific invoice.
Get Invoice LinesTool to retrieve invoicelines collection from Rentman.
Get Invoice PaymentsTool to retrieve payments linked to a specific invoice.
Get Invoices CollectionTool to retrieve a collection of invoices from Rentman.
Get Ledgercodes CollectionTool to retrieve ledger codes collection from Rentman.
Get Payments CollectionTool to retrieve a collection of payments from Rentman.
Get Project ContractsTool to retrieve contracts linked to a specific project from Rentman.
Get Project CostsTool to retrieve costs linked to a specific project from Rentman.
Get Projectcrew CollectionTool to retrieve projectcrew collection from Rentman.
Get Project Equipment CollectionTool to retrieve a collection of project equipment from Rentman.
Get Projectequipmentgroup CollectionTool to retrieve projectequipmentgroup collection from Rentman.
Get project equipment group project equipmentTool to get projectequipment linked collection for a specific projectequipmentgroup.
Get Project File FoldersTool to retrieve file folders linked to a specific project.
Get Project FilesTool to retrieve files linked to a project.
Get Project Function Group Project FunctionsTool to get project functions linked to a specific project function group in Rentman.
Get Project Function Groups CollectionTool to retrieve a collection of project function groups from Rentman.
Get Project Function CrewTool to get project crew linked to a specific project function.
Get Projectfunction ProjectvehiclesTool to retrieve project vehicles linked to a project function.
Get Projectfunctions CollectionTool to retrieve a collection of projectfunctions from Rentman.
Get Project CrewTool to get project crew custom linked collection for a specific project.
Get Project EquipmentTool to retrieve all equipment items linked to a specific project in Rentman.
Get project projectequipmentgroupTool to get projectequipmentgroup linked collection for a specific project.
Get Project Function Groups For ProjectTool to retrieve project function groups linked to a specific project in Rentman.
Get Project ProjectfunctionsTool to retrieve projectfunctions linked to a specific project.
Get Project ProjectvehiclesTool to retrieve project vehicles linked to a project.
Get Project QuotesTool to retrieve quotes linked to a project.
Get Project Request EquipmentTool to retrieve projectrequestequipment linked to a specific project request in Rentman.
Get Project Request Equipment CollectionTool to retrieve project request equipment collection from Rentman.
Get Project Requests CollectionTool to retrieve a collection of project requests from Rentman.
Get Projects CollectionTool to retrieve a collection of projects from Rentman.
Get Project SubprojectsTool to retrieve subprojects linked to a specific project from Rentman.
Get Projecttypes CollectionTool to retrieve a collection of project types from Rentman.
Get Projectvehicles CollectionTool to retrieve projectvehicles collection from Rentman.
Get Quote FilesTool to get files linked to a quote.
Get quote invoicelinesRetrieves invoicelines linked to a specific quote.
Get Quotes CollectionTool to retrieve a collection of quotes from Rentman.
Get Ratefactors CollectionTool to retrieve a collection of ratefactors from Rentman.
Get Rate RatefactorsTool to retrieve the ratefactors custom linked collection for a specific rate.
Get Rates CollectionTool to retrieve rates collection from Rentman.
Get Repair File FoldersTool to get file folders linked to a repair.
Get Repair FilesTool to get files linked to a repair.
Get Repairs CollectionTool to retrieve a collection of repairs from Rentman.
Get Serial Number File FoldersTool to get file folders linked to a serial number.
Get Serial Number FilesTool to get files linked to a serial number.
Get Serialnumbers CollectionTool to retrieve a collection of serialnumbers from Rentman.
Get Statuses CollectionTool to retrieve a collection of statuses from Rentman.
Get Stocklocations CollectionTool to retrieve stock locations collection from Rentman.
Get Stockmovements CollectionTool to retrieve the stock movements collection from Rentman.
Get Subproject File FoldersTool to get file folders linked to a subproject.
Get Subproject Project CrewTool to get project crew custom linked collection for a specific subproject.
Get Subproject Project EquipmentTool to retrieve project equipment collection from a specific subproject in Rentman.
Get subproject projectequipmentgroupTool to get projectequipmentgroup linked collection for a specific subproject.
Get Project Function Groups For SubprojectTool to retrieve project function groups linked to a specific subproject in Rentman.
Get Subproject ProjectvehiclesTool to retrieve project vehicles linked to a subproject.
Get Subprojects CollectionTool to retrieve subprojects collection from Rentman.
Get Subrental Equipment CollectionTool to retrieve a collection of subrental equipment items from Rentman.
Get Subrental Equipment GroupTool to get subrental equipment group custom linked collection from Rentman.
Get Subrental Equipment Group CollectionTool to retrieve the complete collection of subrental equipment groups from Rentman.
Get subrental equipment group subrental equipmentTool to get subrentalequipment custom linked collection for a specific subrentalequipmentgroup.
Get Subrental File FoldersTool to get file folders linked to a subrental.
Get Subrental FilesTool to get files linked to a subrental.
Get Subrentals CollectionTool to get subrentals collection from Rentman.
Get Subrental SubrentalequipmentTool to retrieve subrentalequipment linked to a specific subrental in Rentman.
Get Tax Classes CollectionTool to retrieve a collection of tax classes from Rentman.
Get Timeregistration ActivitiesTool to retrieve all timeregistrationactivities linked to a specific timeregistration in Rentman.
Get Timeregistration Activities CollectionTool to retrieve a collection of timeregistration activities from Rentman.
Get Timeregistration CollectionTool to retrieve a collection of timeregistrations from Rentman.
Get Time Registration FilesTool to get files linked to a time registration.
Get Vehicle File FoldersTool to get file folders linked to a vehicle.
Get Vehicle FilesTool to get files linked to a vehicle.
Get Vehicles CollectionTool to retrieve a collection of vehicles from Rentman.
List ActualcontentTool to get actualcontent collection from Rentman.
List Equipmentassignedserials CollectionTool to retrieve serial numbers assigned to serialized physical combinations from Rentman.
List FactorgroupsTool to retrieve factorgroups collection from Rentman.
List Factorgroups FactorsTool to retrieve the factors collection for a specific factorgroup.
List FactorsTool to retrieve a collection of factors from Rentman.
List File FoldersTool to retrieve file folders collection from Rentman.
List Leave MutationsTool to retrieve leave mutations collection from Rentman.
List Leave RequestsTool to retrieve leave requests collection from Rentman.
List Leave Request TimeregistrationTool to get timeregistration collection for a specific leave request.
List Leave TypesTool to retrieve leave types collection from Rentman.
List Serialnumber ActualcontentTool to retrieve the actualcontent collection for a specific serialnumber item.
List Serialnumber Equipment Assigned SerialsTool to retrieve equipmentassignedserials collection for a specific serialnumber item.
List Stocklocations VehiclesTool to retrieve vehicles collection for a stocklocation.

What is the Composio tool router, and how does it fit here?

What is Tool Router?

Composio's Tool Router 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 Tool Router

The tool router generates a secure MCP URL that your agents can access to perform actions.

How the Tool Router works

The Tool Router 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

Prerequisites

Before starting, make sure you have:
  • Composio API Key and Claude/Anthropic API Key
  • Primary know-how of Claude Agents SDK
  • A Rentman account
  • Some knowledge of Python

Getting API Keys for Claude/Anthropic and Composio

Claude/Anthropic API Key
  • Go to the Anthropic Console and create an API key. You'll need credits to use the models.
  • 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.

Install dependencies

pip install composio-anthropic claude-agent-sdk python-dotenv

Install the Composio SDK and the Claude Agents SDK.

What's happening:

  • composio-anthropic provides Composio integration for Anthropic
  • claude-agent-sdk is the core agent framework
  • python-dotenv loads environment variables

Set up environment variables

bash
COMPOSIO_API_KEY=your_composio_api_key_here
USER_ID=your_user_id_here
ANTHROPIC_API_KEY=your_anthropic_api_key_here

Create a .env file in your project root.

What's happening:

  • COMPOSIO_API_KEY authenticates with Composio
  • USER_ID identifies the user for session management
  • ANTHROPIC_API_KEY authenticates with Anthropic/Claude

Import dependencies

import asyncio
from claude_agent_sdk import ClaudeSDKClient, ClaudeAgentOptions
import os
from composio import Composio
from dotenv import load_dotenv

load_dotenv()
What's happening:
  • We're importing all necessary libraries including the Claude Agent SDK and Composio
  • The load_dotenv() function loads environment variables from your .env file
  • This setup prepares the foundation for connecting Claude with Rentman functionality

Create a Composio instance and Tool Router session

async def chat_with_remote_mcp():
    api_key = os.getenv("COMPOSIO_API_KEY")
    if not api_key:
        raise RuntimeError("COMPOSIO_API_KEY is not set")

    composio = Composio(api_key=api_key)

    # Create Tool Router session for Rentman
    mcp_server = composio.create(
        user_id=os.getenv("USER_ID"),
        toolkits=["rentman"]
    )

    url = mcp_server.mcp.url

    if not url:
        raise ValueError("Session URL not found")
What's happening:
  • The function checks for the required COMPOSIO_API_KEY environment variable
  • We're creating a Composio instance using our API key
  • The create method creates a Tool Router session for Rentman
  • The returned url is the MCP server URL that your agent will use

Configure Claude Agent with MCP

# Configure remote MCP server for Claude
options = ClaudeAgentOptions(
    permission_mode="bypassPermissions",
    mcp_servers={
        "composio": {
            "type": "http",
            "url": url,
            "headers": {
                "x-api-key": os.getenv("COMPOSIO_API_KEY")
            }
        }
    },
    system_prompt="You are a helpful assistant with access to Rentman tools via Composio.",
    max_turns=10
)
What's happening:
  • We're configuring the Claude Agent options with the MCP server URL
  • permission_mode="bypassPermissions" allows the agent to execute operations without asking for permission each time
  • The system prompt instructs the agent that it has access to Rentman
  • max_turns=10 limits the conversation length to prevent excessive API usage

Create client and start chat loop

# Create client with context manager
async with ClaudeSDKClient(options=options) as client:
    print("\nChat started. Type 'exit' or 'quit' to end.\n")

    # Main chat loop
    while True:
        user_input = input("You: ").strip()
        if user_input.lower() in {"exit", "quit"}:
            print("Goodbye!")
            break

        # Send query
        await client.query(user_input)

        # Receive and print response
        print("Claude: ", end="", flush=True)
        async for message in client.receive_response():
            if hasattr(message, "content"):
                for block in message.content:
                    if hasattr(block, "text"):
                        print(block.text, end="", flush=True)
        print()
What's happening:
  • The Claude SDK client is created using the async context manager pattern
  • The agent processes each query and streams the response back in real-time
  • The chat loop continues until the user types 'exit' or 'quit'

Run the application

if __name__ == "__main__":
    asyncio.run(chat_with_remote_mcp())
What's happening:
  • This entry point runs the async chat_with_remote_mcp() function using asyncio.run()
  • The application will start, create the MCP connection, and begin the interactive chat session

Complete Code

Here's the complete code to get you started with Rentman and Claude Agent SDK:

import asyncio
from claude_agent_sdk import ClaudeSDKClient, ClaudeAgentOptions
import os
from composio import Composio
from dotenv import load_dotenv

load_dotenv()

async def chat_with_remote_mcp():
    api_key = os.getenv("COMPOSIO_API_KEY")
    if not api_key:
        raise RuntimeError("COMPOSIO_API_KEY is not set")

    composio = Composio(api_key=api_key)

    # Create Tool Router session for Rentman
    mcp_server = composio.create(
        user_id=os.getenv("USER_ID"),
        toolkits=["rentman"]
    )

    url = mcp_server.mcp.url

    if not url:
        raise ValueError("Session URL not found")

    # Configure remote MCP server for Claude
    options = ClaudeAgentOptions(
        permission_mode="bypassPermissions",
        mcp_servers={
            "composio": {
                "type": "http",
                "url": url,
                "headers": {
                    "x-api-key": os.getenv("COMPOSIO_API_KEY")
                }
            }
        },
        system_prompt="You are a helpful assistant with access to Rentman tools via Composio.",
        max_turns=10
    )

    # Create client with context manager
    async with ClaudeSDKClient(options=options) as client:
        print("\nChat started. Type 'exit' or 'quit' to end.\n")

        # Main chat loop
        while True:
            user_input = input("You: ").strip()
            if user_input.lower() in {"exit", "quit"}:
                print("Goodbye!")
                break

            # Send query
            await client.query(user_input)

            # Receive and print response
            print("Claude: ", end="", flush=True)
            async for message in client.receive_response():
                if hasattr(message, "content"):
                    for block in message.content:
                        if hasattr(block, "text"):
                            print(block.text, end="", flush=True)
            print()

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

Conclusion

You've successfully built a Claude Agent SDK agent that can interact with Rentman through Composio's Tool Router.

Key features:

  • Native MCP support through Claude's agent framework
  • Streaming responses for real-time interaction
  • Permission bypass for smooth automated workflows
You can extend this by adding more toolkits, implementing custom business logic, or building a web interface around the agent.

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FAQ

What are the differences in Tool Router MCP and Rentman MCP?

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

Can I use Tool Router MCP with Claude Agent SDK?

Yes, you can. Claude Agent SDK 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 Rentman tools.

Can I manage the permissions and scopes for Rentman while using Tool Router?

Yes, absolutely. You can configure which Rentman 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.

How safe is my data with Composio Tool Router?

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 Rentman data and credentials are handled as safely as possible.

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