How to integrate Carbone MCP with Autogen

This guide walks you through connecting Carbone to AutoGen using the Composio tool router. By the end, you'll have a working Carbone agent that can generate a pdf invoice from order data, upload a new docx report template, download an existing template by template id through natural language commands. This guide will help you understand how to give your AutoGen agent real control over a Carbone account through Composio's Carbone MCP server. Before we dive in, let's take a quick look at the key ideas and tools involved.

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Carbone is a blazing-fast report generator that turns JSON data into PDFs, Word docs, spreadsheets, and more using flexible templates. It lets you automate document creation at scale with minimal code.

11 Tools

Introduction

This guide walks you through connecting Carbone to AutoGen using the Composio tool router. By the end, you'll have a working Carbone agent that can generate a pdf invoice from order data, upload a new docx report template, download an existing template by template id through natural language commands.

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

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

Also integrate Carbone with

OpenAI Agents SDKClaude Agent SDKClaude CodeClaude CoworkCodexOpenClawHermesCLIGoogle ADKLangChainVercel AI SDKMastra AILlamaIndexCrewAI

TL;DR

Here's what you'll learn:
  • Get and set up your OpenAI and Composio API keys
  • Install the required dependencies for Autogen and Composio
  • Initialize Composio and create a Tool Router session for Carbone
  • Wire that MCP URL into Autogen using McpWorkbench and StreamableHttpServerParams
  • Configure an Autogen AssistantAgent that can call Carbone tools
  • Run a live chat loop where you ask the agent to perform Carbone operations

What is AutoGen?

Autogen is a framework for building multi-agent conversational AI systems from Microsoft. It enables you to create agents that can collaborate, use tools, and maintain complex workflows.

Key features include:

  • Multi-Agent Systems: Build collaborative agent workflows
  • MCP Workbench: Native support for Model Context Protocol tools
  • Streaming HTTP: Connect to external services through streamable HTTP
  • AssistantAgent: Pre-built agent class for tool-using assistants

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

The Carbone MCP server is an implementation of the Model Context Protocol that connects your AI agent and assistants like Claude, Cursor, etc directly to your Carbone account. It provides structured and secure access to your Carbone document automation, so your agent can perform actions like generating reports, managing templates, downloading files, and monitoring server status on your behalf.

  • Automated report generation: Instantly generate custom reports in formats like PDF, DOCX, or XLSX from JSON data and pre-built templates.
  • Template management: Upload new templates, download existing ones, or delete outdated templates directly via your agent for seamless workflow updates.
  • Template ID generation: Create unique template identifiers to streamline the process of uploading and tracking templates across projects.
  • Server health monitoring: Check the real-time status and health of your Carbone server before executing key operations, ensuring reliability and uptime.
  • API version control: Set or update the Carbone API version your agent uses to maintain compatibility and leverage the latest features.

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 step08 STEPS
1

Prerequisites

You will need:

  • A Composio API key
  • An OpenAI API key (used by Autogen's OpenAIChatCompletionClient)
  • A Carbone account you can connect to Composio
  • Some basic familiarity with Autogen and Python async
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 python-dotenv
pip install autogen-agentchat autogen-ext-openai autogen-ext-tools

Install Composio, Autogen extensions, and dotenv.

What's happening:

  • composio connects your agent to Carbone via MCP
  • autogen-agentchat provides the AssistantAgent class
  • autogen-ext-openai provides the OpenAI model client
  • autogen-ext-tools provides MCP workbench support

4

Set up environment variables

bash
COMPOSIO_API_KEY=your-composio-api-key
OPENAI_API_KEY=your-openai-api-key
USER_ID=your-user-identifier@example.com

Create a .env file in your project folder.

What's happening:

  • COMPOSIO_API_KEY is required to talk to Composio
  • OPENAI_API_KEY is used by Autogen's OpenAI client
  • USER_ID is how Composio identifies which user's Carbone connections to use
5

Import dependencies and create Tool Router session

python
import asyncio
import os
from dotenv import load_dotenv
from composio import Composio

from autogen_agentchat.agents import AssistantAgent
from autogen_ext.models.openai import OpenAIChatCompletionClient
from autogen_ext.tools.mcp import McpWorkbench, StreamableHttpServerParams

load_dotenv()

async def main():
    # Initialize Composio and create a Carbone session
    composio = Composio(api_key=os.getenv("COMPOSIO_API_KEY"))
    session = composio.create(
        user_id=os.getenv("USER_ID"),
        toolkits=["carbone"]
    )
    url = session.mcp.url
What's happening:
  • load_dotenv() reads your .env file
  • Composio(api_key=...) initializes the SDK
  • create(...) creates a Tool Router session that exposes Carbone tools
  • session.mcp.url is the MCP endpoint that Autogen will connect to
6

Configure MCP parameters for Autogen

python
# Configure MCP server parameters for Streamable HTTP
server_params = StreamableHttpServerParams(
    url=url,
    timeout=30.0,
    sse_read_timeout=300.0,
    terminate_on_close=True,
    headers={"x-api-key": os.getenv("COMPOSIO_API_KEY")}
)

Autogen expects parameters describing how to talk to the MCP server. That is what StreamableHttpServerParams is for.

What's happening:

  • url points to the Tool Router MCP endpoint from Composio
  • timeout is the HTTP timeout for requests
  • sse_read_timeout controls how long to wait when streaming responses
  • terminate_on_close=True cleans up the MCP server process when the workbench is closed
7

Create the model client and agent

python
# Create model client
model_client = OpenAIChatCompletionClient(
    model="gpt-5",
    api_key=os.getenv("OPENAI_API_KEY")
)

# Use McpWorkbench as context manager
async with McpWorkbench(server_params) as workbench:
    # Create Carbone assistant agent with MCP tools
    agent = AssistantAgent(
        name="carbone_assistant",
        description="An AI assistant that helps with Carbone operations.",
        model_client=model_client,
        workbench=workbench,
        model_client_stream=True,
        max_tool_iterations=10
    )

What's happening:

  • OpenAIChatCompletionClient wraps the OpenAI model for Autogen
  • McpWorkbench connects the agent to the MCP tools
  • AssistantAgent is configured with the Carbone tools from the workbench
8

Run the interactive chat loop

python
print("Chat started! Type 'exit' or 'quit' to end the conversation.\n")
print("Ask any Carbone related question or task to the agent.\n")

# Conversation loop
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")

    # Run the agent with streaming
    try:
        response_text = ""
        async for message in agent.run_stream(task=user_input):
            if hasattr(message, "content") and message.content:
                response_text = message.content

        # Print the final response
        if response_text:
            print(f"Agent: {response_text}\n")
        else:
            print("Agent: I encountered an issue processing your request.\n")

    except Exception as e:
        print(f"Agent: Sorry, I encountered an error: {str(e)}\n")
What's happening:
  • The script prompts you in a loop with You:
  • Autogen passes your input to the model, which decides which Carbone tools to call via MCP
  • agent.run_stream(...) yields streaming messages as the agent thinks and calls tools
  • Typing exit, quit, or bye ends the loop

Complete Code

Here's the complete code to get you started with Carbone and AutoGen:

python
import asyncio
import os
from dotenv import load_dotenv
from composio import Composio

from autogen_agentchat.agents import AssistantAgent
from autogen_ext.models.openai import OpenAIChatCompletionClient
from autogen_ext.tools.mcp import McpWorkbench, StreamableHttpServerParams

load_dotenv()

async def main():
    # Initialize Composio and create a Carbone session
    composio = Composio(api_key=os.getenv("COMPOSIO_API_KEY"))
    session = composio.create(
        user_id=os.getenv("USER_ID"),
        toolkits=["carbone"]
    )
    url = session.mcp.url

    # Configure MCP server parameters for Streamable HTTP
    server_params = StreamableHttpServerParams(
        url=url,
        timeout=30.0,
        sse_read_timeout=300.0,
        terminate_on_close=True,
        headers={"x-api-key": os.getenv("COMPOSIO_API_KEY")}
    )

    # Create model client
    model_client = OpenAIChatCompletionClient(
        model="gpt-5",
        api_key=os.getenv("OPENAI_API_KEY")
    )

    # Use McpWorkbench as context manager
    async with McpWorkbench(server_params) as workbench:
        # Create Carbone assistant agent with MCP tools
        agent = AssistantAgent(
            name="carbone_assistant",
            description="An AI assistant that helps with Carbone operations.",
            model_client=model_client,
            workbench=workbench,
            model_client_stream=True,
            max_tool_iterations=10
        )

        print("Chat started! Type 'exit' or 'quit' to end the conversation.\n")
        print("Ask any Carbone related question or task to the agent.\n")

        # Conversation loop
        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")

            # Run the agent with streaming
            try:
                response_text = ""
                async for message in agent.run_stream(task=user_input):
                    if hasattr(message, 'content') and message.content:
                        response_text = message.content

                # Print the final response
                if response_text:
                    print(f"Agent: {response_text}\n")
                else:
                    print("Agent: I encountered an issue processing your request.\n")

            except Exception as e:
                print(f"Agent: Sorry, I encountered an error: {str(e)}\n")

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

Conclusion

You now have an Autogen assistant wired into Carbone through Composio's Tool Router and MCP. From here you can:
  • Add more toolkits to the toolkits list, for example notion or hubspot
  • Refine the agent description to point it at specific workflows
  • Wrap this script behind a UI, Slack bot, or internal tool
Once the pattern is clear for Carbone, you can reuse the same structure for other MCP-enabled apps with minimal code changes.
TOOLS

Supported Tools

Every Carbone action and event your agent gets out of the box.

Delete Carbone Template

Permanently delete a template from the Carbone server by its 64-character hexadecimal template ID.

Download Template

Tool to download a template from Carbone by template ID.

Generate Carbone Report

Tool to generate a Carbone report from a template and JSON data.

Get Carbone Server Status

Tool to retrieve the current status and health of the Carbone server.

List Template Categories

Tool to retrieve a list of all categories used in templates.

List Templates

Tool to retrieve a list of templates from Carbone storage with filtering, search, and cursor-based pagination.

List Template Tags

Tool to list all tags currently used in templates.

Render Template Direct

Tool to generate a document by uploading a base64-encoded template and data in a single API call.

Set Carbone API Version

Tool to set the Carbone API version to be used for subsequent requests.

Update Template Metadata

Tool to update metadata and attributes of an existing Carbone template.

Upload a template

Upload a template file to the Carbone server to obtain a template ID for document generation.

FRAMEWORKS

How to build Carbone MCP Agent with another framework

OpenAI Agents SDK logo

OpenAI Agents SDK

Use Carbone MCP with OpenAI Agents SDK

Claude Agent SDK logo

Claude Agent SDK

Use Carbone MCP with Claude Agent SDK

Claude Code logo

Claude Code

Use Carbone MCP with Claude Code

Claude Cowork logo

Claude Cowork

Use Carbone MCP with Claude Cowork

Codex logo

Codex

Use Carbone MCP with Codex

OpenClaw logo

OpenClaw

Use Carbone MCP with OpenClaw

Hermes logo

Hermes

Use Carbone MCP with Hermes

CLI logo

CLI

Use Carbone MCP with CLI

Google ADK logo

Google ADK

Use Carbone MCP with Google ADK

LangChain logo

LangChain

Use Carbone MCP with LangChain

Vercel AI SDK logo

Vercel AI SDK

Use Carbone MCP with Vercel AI SDK

Mastra AI logo

Mastra AI

Use Carbone MCP with Mastra AI

LlamaIndex logo

LlamaIndex

Use Carbone MCP with LlamaIndex

CrewAI logo

CrewAI

Use Carbone MCP with CrewAI

FAQ

Frequently asked questions

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

Yes, you can. Autogen 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 Carbone tools.

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

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