How to integrate Follow Up Boss MCP with Claude Agent SDK

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Introduction

This guide walks you through connecting Follow Up Boss to the Claude Agent SDK using the Composio tool router. By the end, you'll have a working Follow Up Boss agent that can list all leads added this week, update contact info for lead john doe, create a new deal for jane smith through natural language commands.

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

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

Supported Tools & Triggers

Tools
Apply Action Plan to PersonTool to apply an Action Plan to a person in Follow Up Boss.
Create AppointmentTool to create a new appointment in Follow Up Boss.
Create appointment outcomeTool to create an appointment outcome in Follow Up Boss.
Create Appointment TypeTool to create a new appointment type in Follow Up Boss.
Create CallTool to add a call record to Follow Up Boss.
Create Custom FieldTool to create a custom field in Follow Up Boss.
Create Deal Custom FieldTool to create a custom field for deals in Follow Up Boss.
Create DealTool to create a new deal in Follow Up Boss.
Create Email Marketing CampaignTool to create an email marketing campaign in Follow Up Boss.
Create Email Marketing EventsTool to notify Follow Up Boss about marketing emails sent, opens, clicks, bounces, unsubscribes and spam reports.
Create EventsTool to send in a lead or an event related to a lead in Follow Up Boss.
Create GroupTool to create a new Follow Up Boss group with specified members and distribution settings.
Create PipelineTool to create a new pipeline in Follow Up Boss.
Create PondsTool to create a new pond in Follow Up Boss.
Create ReactionsTool to add a reaction (emoji) to a Note, Call, or ThreadedReply.
Create StageTool to create a new stage in Follow Up Boss.
Create TeamTool to create a new team in Follow Up Boss.
Create email templateTool to create a new email template in Follow Up Boss.
Create Text Message TemplateTool to create a text message template in Follow Up Boss.
Delete AppointmentTool to delete an appointment by ID.
Delete Appointment OutcomeTool to delete an appointment outcome by ID.
Delete Appointment TypeTool to delete an appointment type by its ID.
Delete Custom FieldTool to delete a custom field by its ID.
Delete DealTool to delete a deal by its ID.
Delete Deal Custom FieldTool to delete a deal custom field by ID.
Delete GroupTool to delete a group by its ID.
Delete People RelationshipTool to delete a people relationship by ID in Follow Up Boss.
Delete PipelineTool to delete a pipeline by its ID from Follow Up Boss.
Delete PondTool to delete a pond by its ID.
Delete StageTool to delete a Follow Up Boss stage by ID.
Delete TeamTool to delete a team by its ID.
Delete text message templateTool to delete a text message template by ID.
Get AppointmentTool to retrieve an appointment by its ID.
Get Appointment OutcomeTool to retrieve an appointment outcome by ID.
Get Appointment TypeTool to retrieve an appointment type by ID.
Get CallTool to retrieve a call by its ID from Follow Up Boss.
Get DealTool to retrieve a deal by its ID from Follow Up Boss.
Get Deal Custom FieldTool to retrieve a deal custom field by its ID from Follow Up Boss.
Get EventTool to retrieve a single event by its ID from Follow Up Boss.
Get GroupTool to retrieve a group by its ID from Follow Up Boss.
Get IdentityTool to retrieve identity and authentication information from Follow Up Boss.
Get MeTool to retrieve information about the currently authenticated user.
Get People RelationshipTool to retrieve a people relationship by its ID from Follow Up Boss.
Get PipelineTool to retrieve a pipeline by its ID from Follow Up Boss.
Get PondsTool to retrieve a pond by its ID from Follow Up Boss.
Get Smart ListTool to retrieve a Smart List by its ID from Follow Up Boss.
Get StageTool to retrieve a stage by its ID from Follow Up Boss.
Get TeamTool to retrieve a team by its ID from Follow Up Boss.
Get TemplateTool to retrieve an email template by its ID from Follow Up Boss.
Get Text MessageTool to retrieve a text message by its ID from Follow Up Boss.
Get Text Message TemplateTool to retrieve a text message template by its ID from Follow Up Boss.
Get UserTool to retrieve a user by its ID from Follow Up Boss.
List Action PlansTool to get a list of Action Plans from Follow Up Boss.
List Action Plans PeopleTool to list Action Plans applied to a particular person or list people on a particular Action Plan.
List Appointment OutcomesTool to list all appointment outcomes from Follow Up Boss.
List AppointmentsTool to search for appointments in Follow Up Boss.
List Appointment TypesTool to list all appointment types from Follow Up Boss.
List CallsTool to search for calls in Follow Up Boss.
List Custom FieldsTool to list all custom fields in Follow Up Boss.
List Deal Custom FieldsTool to list all deal custom fields in Follow Up Boss.
List DealsTool to search for and list deals from Follow Up Boss.
List Email Marketing CampaignsTool to list email marketing campaigns from Follow Up Boss.
List Email Marketing EventsTool to retrieve email marketing events from Follow Up Boss.
List EventsTool to search for and list events from Follow Up Boss.
List GroupsTool to list all groups from Follow Up Boss.
List Groups Round RobinTool to list groups with round-robin data from Follow Up Boss.
List Inbox AppsTool to list all inbox app installations from Follow Up Boss.
List People RelationshipsTool to list all people relationships from Follow Up Boss.
List PipelinesTool to search for pipelines in Follow Up Boss.
List PondsTool to list all ponds from Follow Up Boss.
List Smart ListsTool to list Smart Lists from Follow Up Boss.
List StagesTool to retrieve a list of stages from Follow Up Boss.
List Team InboxesTool to list all shared team inboxes from Follow Up Boss.
List TeamsTool to get a list of teams from Follow Up Boss.
List TemplatesTool to list all email templates from Follow Up Boss.
List Text MessagesTool to list text messages for a person or phone number from Follow Up Boss.
List Text Message TemplatesTool to list all text message templates from Follow Up Boss.
List TimeframesTool to get a list of timeframes from Follow Up Boss.
List UsersTool to search for and list users from Follow Up Boss.
List WebhooksTool to retrieve a list of webhooks from Follow Up Boss.
Merge TemplateTool to merge an email template with person data using Follow Up Boss API.
Merge Text Message TemplateTool to merge a text message template with person data.
Update Action Plan People StatusTool to update the status of an Action Plan to Person relationship in Follow Up Boss.
Update AppointmentTool to update an existing appointment in Follow Up Boss.
Update appointment outcomeTool to update an existing appointment outcome in Follow Up Boss.
Update Appointment TypeTool to update an existing appointment type in Follow Up Boss.
Update CallTool to update an existing call record in Follow Up Boss.
Update Custom FieldsTool to update an existing custom field in Follow Up Boss by its ID.
Update Deal Custom FieldsTool to update an existing deal custom field in Follow Up Boss.
Update DealTool to update an existing deal in Follow Up Boss.
Update Email Marketing CampaignTool to update an existing email marketing campaign in Follow Up Boss.
Update GroupTool to update an existing Follow Up Boss group with modified members and distribution settings.
Update People RelationshipsTool to update details of a specific people relationship in Follow Up Boss.
Update PipelineTool to update an existing pipeline in Follow Up Boss.
Update PondsTool to update an existing pond in Follow Up Boss.
Update StageTool to update an existing stage in Follow Up Boss.
Update TeamTool to update an existing team in Follow Up Boss.
Update email templateTool to update an existing email template in Follow Up Boss.
Update Text Message TemplateTool to update an existing text message template in Follow Up Boss.

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 Follow Up Boss 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 Follow Up Boss 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 Follow Up Boss
    mcp_server = composio.create(
        user_id=os.getenv("USER_ID"),
        toolkits=["follow_up_boss"]
    )

    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 Follow Up Boss
  • 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 Follow Up Boss 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 Follow Up Boss
  • 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 Follow Up Boss 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 Follow Up Boss
    mcp_server = composio.create(
        user_id=os.getenv("USER_ID"),
        toolkits=["follow_up_boss"]
    )

    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 Follow Up Boss 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 Follow Up Boss 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 Follow Up Boss MCP?

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

Can I manage the permissions and scopes for Follow Up Boss while using Tool Router?

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

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