How to integrate Proabono MCP with Claude Agent SDK

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Introduction

This guide walks you through connecting Proabono to the Claude Agent SDK using the Composio tool router. By the end, you'll have a working Proabono agent that can list all active subscriptions for a customer, create a new subscription for acme corp, show overdue invoices for a specific customer through natural language commands.

This guide will help you understand how to give your Claude Agent SDK agent real control over a Proabono account through Composio's Proabono 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 Proabono
  • Configure an AI agent that can use Proabono as a tool
  • Run a live chat session where you can ask the agent to perform Proabono 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 Proabono MCP server, and what's possible with it?

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

Supported Tools & Triggers

Tools
Anonymize CustomerTool to anonymize a customer for GDPR compliance.
Bill CustomerTool to trigger billing for a customer.
Create CustomerTool to create or declare a customer in ProAbono via the Backoffice API.
Create FeatureTool to create a new feature in ProAbono via the Backoffice API.
Delete CustomerTool to delete a customer from ProAbono by ID.
Delete OfferTool to delete an offer from ProAbono by ID.
Delete Pricing TableTool to delete a pricing table from ProAbono by its ID.
Delete Pricing Table OfferTool to delete a pricing table offer via the ProAbono Backoffice API.
Delete Subscription DiscountTool to delete a subscription discount via the Backoffice API.
Enable WebhookTool to enable a webhook in ProAbono via the Notification API.
Get Customer by IDTool to retrieve a single customer by ID from ProAbono Backoffice API.
Get Customer Billing AddressTool to retrieve a customer's billing address via the Backoffice API.
Get Customer Billing Address by ReferenceTool to retrieve the billing address for a customer by reference from ProAbono API.
Get Customer by ReferenceTool to retrieve a customer by their reference identifier from ProAbono API.
Get Customer Payment SettingsTool to retrieve customer payment settings via the Backoffice API.
Get DiscountTool to retrieve a discount by ID via the Backoffice API.
Get Feature by IDTool to retrieve a feature by ID from ProAbono Backoffice API.
Get Feature by ReferenceTool to retrieve a single feature by its reference from ProAbono API.
Get InvoiceTool to retrieve a specific invoice or credit note by ID from ProAbono.
Get Offer by IDTool to retrieve a single offer by its ID from ProAbono Backoffice API.
Get Subscription by Customer ReferenceTool to retrieve a subscription by customer reference from ProAbono.
Get Subscription Creation QuoteTool to get a pricing quote for creating a new subscription without actually creating it.
Get Usage RecordTool to retrieve a single usage record for a specific feature and customer combination from ProAbono.
Get Usages for CustomerTool to retrieve usage data for customers from ProAbono.
Invalidate CustomerTool to invalidate a customer by their reference.
Invalidate Customer by IDTool to invalidate a customer by their ProAbono internal ID.
List Balance LinesTool to list all balance lines from ProAbono.
List BusinessesTool to list all businesses from ProAbono via the Backoffice API.
List Business LocalizationTool to list localization entries by business from ProAbono via the HostedPages API.
List Customer MovesTool to list all customer balance moves via the ProAbono Backoffice API.
List CustomersTool to list all customers from ProAbono via the Backoffice API.
List Customers by FeatureTool to list customers that have access to a specific feature via the ProAbono API.
List DiscountsTool to list all discounts from ProAbono's Backoffice API.
List FeaturesTool to list all features via the ProAbono Backoffice API.
List Features (V1)Tool to retrieve all features from ProAbono API using the /v1/Features endpoint.
List Gateway AccountsTool to list payment gateway accounts from ProAbono Backoffice API.
List Gateway PermissionsTool to list gateway permissions from ProAbono API.
List Gateway RequestsTool to list gateway requests from ProAbono.
List Gateway TransactionsTool to list gateway transactions from ProAbono.
List Invoice LinesTool to list all invoice lines from ProAbono via the Backoffice API.
List Invoices and Credit NotesTool to list all invoices and credit notes from ProAbono Backoffice API.
List Invoices by Customer ReferenceTool to list invoices for a specific customer by their reference identifier from ProAbono API.
List OffersTool to list all subscription offers (plans) from ProAbono Backoffice API.
List PaymentsTool to list all payments from ProAbono Backoffice API.
List Pricing Table OffersTool to list all pricing table offers via the ProAbono Backoffice API.
List Pricing TablesTool to list all pricing tables from ProAbono Backoffice API.
List Segment LocalizationsTool to list localization entries by segment from ProAbono Backoffice API.
List SegmentsTool to list all segments from ProAbono via the Backoffice API.
List Subscription DiscountsTool to list all subscription discounts via the ProAbono Backoffice API.
List Subscription FeaturesTool to list all subscription features via the ProAbono Backoffice API.
List Subscription PeriodsTool to list all subscription periods (billing cycles) from ProAbono Backoffice API.
List SubscriptionsTool to list all subscriptions from ProAbono via the Backoffice API.
List Subscriptions (V1)Tool to retrieve all subscriptions from ProAbono API using the /v1/Subscriptions endpoint.
List Tax Profile ExceptionsTool to list tax profile exceptions from ProAbono Organization API.
List Tax ProfilesTool to list all tax profiles from ProAbono via the Backoffice API.
List Upgrade OffersTool to retrieve offers available to upgrade an existing customer subscription.
List Webhook NotificationsTool to list webhook notifications from ProAbono via the Notification API.
List WebhooksTool to list webhooks from ProAbono Notification API.
Quote Balance Line CreationTool to get a pricing quote for creating a balance line (one-time charge or credit).
Revoke Customer Portal LinksTool to revoke encrypted customer portal links and generate new ones in ProAbono.
Update Business Billing AddressTool to update business billing address via the Backoffice API.
Update CustomerTool to update an existing customer in ProAbono via the Backoffice API.
Update Customer Billing AddressTool to update the billing address for a customer in ProAbono via the API.
Update Customer Payment SettingsTool to update payment settings for a specific customer in ProAbono.
Update Customer Shipping AddressTool to update customer shipping address via the Backoffice API.
Update FeatureTool to update an existing feature in ProAbono via the Backoffice API.
Update Tax ProfilesTool to update an existing tax profile in ProAbono via the Backoffice API.

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 Proabono 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 Proabono 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 Proabono
    mcp_server = composio.create(
        user_id=os.getenv("USER_ID"),
        toolkits=["proabono"]
    )

    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 Proabono
  • 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 Proabono 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 Proabono
  • 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 Proabono 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 Proabono
    mcp_server = composio.create(
        user_id=os.getenv("USER_ID"),
        toolkits=["proabono"]
    )

    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 Proabono 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 Proabono 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 Proabono MCP?

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

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

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

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