How to integrate Dungeon fighter online MCP with CrewAI

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Introduction

This guide walks you through connecting Dungeon fighter online to CrewAI using the Composio tool router. By the end, you'll have a working Dungeon fighter online agent that can show all servers available this week, find characters named arin on cain server, get latest status info for my character, list equipped buff avatars for my main through natural language commands.

This guide will help you understand how to give your CrewAI agent real control over a Dungeon fighter online account through Composio's Dungeon fighter online 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 a Composio API key and configure your Dungeon fighter online connection
  • Set up CrewAI with an MCP enabled agent
  • Create a Tool Router session or standalone MCP server for Dungeon fighter online
  • Build a conversational loop where your agent can execute Dungeon fighter online operations

What is CrewAI?

CrewAI is a powerful framework for building multi-agent AI systems. It provides primitives for defining agents with specific roles, creating tasks, and orchestrating workflows through crews.

Key features include:

  • Agent Roles: Define specialized agents with specific goals and backstories
  • Task Management: Create tasks with clear descriptions and expected outputs
  • Crew Orchestration: Combine agents and tasks into collaborative workflows
  • MCP Integration: Connect to external tools through Model Context Protocol

What is the Dungeon fighter online MCP server, and what's possible with it?

The Dungeon fighter online MCP server is an implementation of the Model Context Protocol that connects your AI agent and assistants like Claude, Cursor, etc directly to your Dungeon Fighter Online account. It provides structured and secure access to your character and server data, so your agent can perform actions like searching for characters, retrieving character stats, checking equipment, and exploring timelines on your behalf.

  • Character search and discovery: Effortlessly search for characters by name on any available server or fetch detailed character lists.
  • Comprehensive character stats retrieval: Instantly pull base information and detailed status, including active buffs and skill information, for any character you own.
  • Equipment and avatar inspection: View your character's equipped items and inspect skill buff avatar gear to optimize your loadout.
  • Timeline and history tracking: Retrieve and review a character's timeline to see recent game activities and progression milestones.
  • Server information lookup: Quickly access the full list of available DFO servers to stay up to date with the game environment.

Supported Tools & Triggers

Tools
Character Base InformationTool to retrieve base information of a specific character.
Character SearchTool to search for characters by name on a given server.
Get Character Skill Buff AvatarTool to fetch skill buff avatar equipment for a character.
Get Character Skill Buff StatusTool to fetch character's skill buff status information.
Character Status InfoTool to retrieve status information of a specific character.
Character TimelineTool to retrieve the timeline of a specific character.
Get Character Skill Buff EquipmentTool to retrieve skill buff equipment details for a character.
Get Server ListTool to retrieve the list of available game servers.

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:
  • Python 3.9 or higher
  • A Composio account and API key
  • A Dungeon fighter online connection authorized in Composio
  • An OpenAI API key for the CrewAI LLM
  • Basic familiarity with Python

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.

Install dependencies

bash
pip install composio crewai crewai-tools python-dotenv
What's happening:
  • composio connects your agent to Dungeon fighter online via MCP
  • crewai provides Agent, Task, Crew, and LLM primitives
  • crewai-tools includes MCP helpers
  • python-dotenv loads environment variables from .env

Set up environment variables

bash
COMPOSIO_API_KEY=your_composio_api_key_here
USER_ID=your_user_id_here
OPENAI_API_KEY=your_openai_api_key_here

Create a .env file in your project root.

What's happening:

  • COMPOSIO_API_KEY authenticates with Composio
  • USER_ID scopes the session to your account
  • OPENAI_API_KEY lets CrewAI use your chosen OpenAI model

Import dependencies

python
from crewai import Agent, Task, Crew, LLM
from crewai_tools import MCPServerAdapter  # optional import if you plan to adapt tools
from composio import Composio
from dotenv import load_dotenv
import os
from crewai.mcp import MCPServerHTTP

load_dotenv()
What's happening:
  • CrewAI classes define agents and tasks, and run the workflow
  • MCPServerHTTP connects the agent to an MCP endpoint
  • Composio will give you a short lived Dungeon fighter online MCP URL

Create a Composio Tool Router session for Dungeon fighter online

python
composio = Composio(api_key=os.getenv("COMPOSIO_API_KEY"))
session = composio.create(
    user_id=os.getenv("USER_ID"),
    toolkits=["dungeon_fighter_online"],
)
url = session.mcp.url
What's happening:
  • You create a Dungeon fighter online only session through Composio
  • Composio returns an MCP HTTP URL that exposes Dungeon fighter online tools

Configure the LLM

python
llm = LLM(
    model="gpt-5-mini",
    api_key=os.getenv("OPENAI_API_KEY"),
)
What's happening:
  • CrewAI will call this LLM for planning and responses
  • You can swap in a different model if needed

Attach the MCP server and create the agent

python
toolkit_agent = Agent(
    role="Dungeon fighter online Assistant",
    goal="Help users interact with Dungeon fighter online through natural language commands",
    backstory=(
        "You are an expert assistant with access to Dungeon fighter online tools. "
        "You can perform various Dungeon fighter online operations on behalf of the user."
    ),
    mcps=[
        MCPServerHTTP(
            url=url,
            streamable=True,
            cache_tools_list=True,
            headers={"x-api-key": os.getenv("COMPOSIO_API_KEY")},
        ),
    ],
    llm=llm,
    verbose=True,
    max_iter=10,
)
What's happening:
  • MCPServerHTTP connects the agent to the Dungeon fighter online MCP endpoint
  • cache_tools_list saves a tools catalog for faster subsequent runs
  • verbose helps you see what the agent is doing

Add a REPL loop with Task and Crew

python
print("Chat started! Type 'exit' or 'quit' to end.\n")
print("Try asking the agent to perform Dungeon fighter online operations.\n")

conversation_context = ""

while True:
    user_input = input("You: ").strip()

    if user_input.lower() in ["exit", "quit", "bye"]:
        print("\nGoodbye!")
        break

    if not user_input:
        continue

    conversation_context += f"\nUser: {user_input}\n"
    print("\nAgent is thinking...\n")

    task = Task(
        description=(
            f"Based on the conversation history:\n{conversation_context}\n\n"
            f"Current user request: {user_input}\n\n"
            f"Please help the user with their Dungeon fighter online related request."
        ),
        expected_output="A helpful response addressing the user's request",
        agent=toolkit_agent,
    )

    crew = Crew(
        agents=[toolkit_agent],
        tasks=[task],
        verbose=False,
    )

    result = crew.kickoff()
    response = str(result)

    conversation_context += f"Agent: {response}\n"
    print(f"Agent: {response}\n")
What's happening:
  • You build a simple chat loop and keep a running context
  • Each user turn becomes a Task handled by the same agent
  • Crew executes the task and returns a response

Run the application

python
if __name__ == "__main__":
    main()
What's happening:
  • Standard Python entry point so you can run python crewai_dungeon_fighter_online_agent.py

Complete Code

Here's the complete code to get you started with Dungeon fighter online and CrewAI:

python
# file: crewai_dungeon_fighter_online_agent.py
from crewai import Agent, Task, Crew, LLM
from crewai_tools import MCPServerAdapter  # optional
from composio import Composio
from dotenv import load_dotenv
import os
from crewai.mcp import MCPServerHTTP

load_dotenv()

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

    # Configure LLM
    llm = LLM(
        model="gpt-5-mini",
        api_key=os.getenv("OPENAI_API_KEY"),
    )

    # Create Dungeon fighter online assistant agent
    toolkit_agent = Agent(
        role="Dungeon fighter online Assistant",
        goal="Help users interact with Dungeon fighter online through natural language commands",
        backstory=(
            "You are an expert assistant with access to Dungeon fighter online tools. "
            "You can perform various Dungeon fighter online operations on behalf of the user."
        ),
        mcps=[
            MCPServerHTTP(
                url=url,
                streamable=True,
                cache_tools_list=True,
                headers={"x-api-key": os.getenv("COMPOSIO_API_KEY")},
            ),
        ],
        llm=llm,
        verbose=True,
        max_iter=10,
    )

    print("Chat started! Type 'exit' or 'quit' to end the conversation.\n")
    print("Try asking the agent to perform Dungeon fighter online operations.\n")

    conversation_context = ""

    while True:
        user_input = input("You: ").strip()

        if user_input.lower() in ["exit", "quit", "bye"]:
            print("\nGoodbye!")
            break

        if not user_input:
            continue

        conversation_context += f"\nUser: {user_input}\n"
        print("\nAgent is thinking...\n")

        task = Task(
            description=(
                f"Based on the conversation history:\n{conversation_context}\n\n"
                f"Current user request: {user_input}\n\n"
                f"Please help the user with their Dungeon fighter online related request."
            ),
            expected_output="A helpful response addressing the user's request",
            agent=toolkit_agent,
        )

        crew = Crew(
            agents=[toolkit_agent],
            tasks=[task],
            verbose=False,
        )

        result = crew.kickoff()
        response = str(result)

        conversation_context += f"Agent: {response}\n"
        print(f"Agent: {response}\n")

if __name__ == "__main__":
    main()

Conclusion

You now have a CrewAI agent connected to Dungeon fighter online through Composio's Tool Router. The agent can perform Dungeon fighter online operations through natural language commands. Next steps:
  • Add role-specific instructions to customize agent behavior
  • Plug in more toolkits for multi-app workflows
  • Chain tasks for complex multi-step operations

How to build Dungeon fighter online MCP Agent with another framework

OpenAI Agents SDK

OpenAI Agents SDK

Use Dungeon fighter online MCP with OpenAI Agents SDK

Claude Agent SDK

Claude Agent SDK

Use Dungeon fighter online MCP with Claude Agent SDK

Google ADK

Google ADK

Use Dungeon fighter online MCP with Google ADK

LangChain

LangChain

Use Dungeon fighter online MCP with LangChain

Vercel AI SDK

Vercel AI SDK

Use Dungeon fighter online MCP with Vercel AI SDK

Mastra AI

Mastra AI

Use Dungeon fighter online MCP with Mastra AI

LlamaIndex

LlamaIndex

Use Dungeon fighter online MCP with LlamaIndex

FAQ

What are the differences in Tool Router MCP and Dungeon fighter online MCP?

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

Can I use Tool Router MCP with CrewAI?

Yes, you can. CrewAI 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 Dungeon fighter online tools.

Can I manage the permissions and scopes for Dungeon fighter online while using Tool Router?

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

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