How to integrate Coinbase MCP with CrewAI

This guide walks you through connecting Coinbase to CrewAI using the Composio tool router. By the end, you'll have a working Coinbase agent that can show all your coinbase wallet balances, list every crypto wallet i own, display recent wallets added to your account through natural language commands. This guide will help you understand how to give your CrewAI agent real control over a Coinbase account through Composio's Coinbase MCP server. Before we dive in, let's take a quick look at the key ideas and tools involved.

Coinbase logoCoinbase
Api Key

Coinbase is a platform for buying, selling, and storing cryptocurrency. It makes exchanging and managing crypto simple and secure for everyone.

28 Tools

Introduction

This guide walks you through connecting Coinbase to CrewAI using the Composio tool router. By the end, you'll have a working Coinbase agent that can show all your coinbase wallet balances, list every crypto wallet i own, display recent wallets added to your account through natural language commands.

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

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

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TL;DR

Here's what you'll learn:
  • Get a Composio API key and configure your Coinbase connection
  • Set up CrewAI with an MCP enabled agent
  • Create a Tool Router session or standalone MCP server for Coinbase
  • Build a conversational loop where your agent can execute Coinbase 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 Coinbase MCP server, and what's possible with it?

The Coinbase MCP server is an implementation of the Model Context Protocol that connects your AI agent and assistants like Claude, Cursor, etc directly to your Coinbase account. It provides structured and secure access to your cryptocurrency wallets, so your agent can retrieve wallet balances, monitor your digital assets, and help you stay informed about your crypto holdings in real time.

  • Comprehensive wallet listing: Instantly fetch a full list of all your Coinbase wallets, including details for each asset you hold.
  • Balance monitoring: Let your agent check and report the current balances for every cryptocurrency wallet connected to your account.
  • Portfolio overview: Get an at-a-glance summary of your crypto assets, helping you understand your overall digital asset distribution.
  • Streamlined asset visibility: Use your agent to quickly surface wallet addresses, asset types, and wallet-specific metadata for easier tracking and management.

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

Before starting, make sure you have:
  • Python 3.9 or higher
  • A Composio account and API key
  • A Coinbase connection authorized in Composio
  • An OpenAI API key for the CrewAI LLM
  • Basic familiarity with Python
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 crewai crewai-tools[mcp] python-dotenv
What's happening:
  • composio connects your agent to Coinbase via MCP
  • crewai provides Agent, Task, Crew, and LLM primitives
  • crewai-tools[mcp] includes MCP helpers
  • python-dotenv loads environment variables from .env
4

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
5

Import dependencies

python
import os
from composio import Composio
from crewai import Agent, Task, Crew
from crewai_tools import MCPServerAdapter
import dotenv

dotenv.load_dotenv()

COMPOSIO_API_KEY = os.getenv("COMPOSIO_API_KEY")
COMPOSIO_USER_ID = os.getenv("COMPOSIO_USER_ID")

if not COMPOSIO_API_KEY:
    raise ValueError("COMPOSIO_API_KEY is not set")
if not COMPOSIO_USER_ID:
    raise ValueError("COMPOSIO_USER_ID is not set")
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 Coinbase MCP URL
6

Create a Composio Tool Router session for Coinbase

python
composio_client = Composio(api_key=COMPOSIO_API_KEY)
session = composio_client.create(user_id=COMPOSIO_USER_ID, toolkits=["coinbase"])

url = session.mcp.url
What's happening:
  • You create a Coinbase only session through Composio
  • Composio returns an MCP HTTP URL that exposes Coinbase tools
7

Initialize the MCP Server

python
server_params = {
    "url": url,
    "transport": "streamable-http",
    "headers": {"x-api-key": COMPOSIO_API_KEY},
}

with MCPServerAdapter(server_params) as tools:
    agent = Agent(
        role="Search Assistant",
        goal="Help users search the internet effectively",
        backstory="You are a helpful assistant with access to search tools.",
        tools=tools,
        verbose=False,
        max_iter=10,
    )
What's Happening:
  • Server Configuration: The code sets up connection parameters including the MCP server URL, streamable HTTP transport, and Composio API key authentication.
  • MCP Adapter Bridge: MCPServerAdapter acts as a context manager that converts Composio MCP tools into a CrewAI-compatible format.
  • Agent Setup: Creates a CrewAI Agent with a defined role (Search Assistant), goal (help with internet searches), and access to the MCP tools.
  • Configuration Options: The agent includes settings like verbose=False for clean output and max_iter=10 to prevent infinite loops.
  • Dynamic Tool Usage: Once created, the agent automatically accesses all Composio Search tools and decides when to use them based on user queries.
8

Create a CLI Chatloop and define the Crew

python
print("Chat started! Type 'exit' or 'quit' to end.\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"Conversation history:\n{conversation_context}\n\n"
            f"Current request: {user_input}"
        ),
        expected_output="A helpful response addressing the user's request",
        agent=agent,
    )

    crew = Crew(agents=[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:
  • Interactive CLI Setup: The code creates an infinite loop that continuously prompts for user input and maintains the entire conversation history in a string variable.
  • Input Validation: Empty inputs are ignored to prevent processing blank messages and keep the conversation clean.
  • Context Building: Each user message is appended to the conversation context, which preserves the full dialogue history for better agent responses.
  • Dynamic Task Creation: For every user input, a new Task is created that includes both the full conversation history and the current request as context.
  • Crew Execution: A Crew is instantiated with the agent and task, then kicked off to process the request and generate a response.
  • Response Management: The agent's response is converted to a string, added to the conversation context, and displayed to the user, maintaining conversational continuity.

Complete Code

Here's the complete code to get you started with Coinbase and CrewAI:

python
from crewai import Agent, Task, Crew, LLM
from crewai_tools import MCPServerAdapter
from composio import Composio
from dotenv import load_dotenv
import os

load_dotenv()

GOOGLE_API_KEY = os.getenv("GOOGLE_API_KEY")
COMPOSIO_API_KEY = os.getenv("COMPOSIO_API_KEY")
COMPOSIO_USER_ID = os.getenv("COMPOSIO_USER_ID")

if not GOOGLE_API_KEY:
    raise ValueError("GOOGLE_API_KEY is not set in the environment.")
if not COMPOSIO_API_KEY:
    raise ValueError("COMPOSIO_API_KEY is not set in the environment.")
if not COMPOSIO_USER_ID:
    raise ValueError("COMPOSIO_USER_ID is not set in the environment.")

# Initialize Composio and create a session
composio = Composio(api_key=COMPOSIO_API_KEY)
session = composio.create(
    user_id=COMPOSIO_USER_ID,
    toolkits=["coinbase"],
)
url = session.mcp.url

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

server_params = {
    "url": url,
    "transport": "streamable-http",
    "headers": {"x-api-key": COMPOSIO_API_KEY},
}

with MCPServerAdapter(server_params) as tools:
    agent = Agent(
        role="Search Assistant",
        goal="Help users with internet searches",
        backstory="You are an expert assistant with access to Composio Search tools.",
        tools=tools,
        llm=llm,
        verbose=False,
        max_iter=10,
    )

    print("Chat started! Type 'exit' or 'quit' to end.\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"Conversation history:\n{conversation_context}\n\n"
                f"Current request: {user_input}"
            ),
            expected_output="A helpful response addressing the user's request",
            agent=agent,
        )

        crew = Crew(agents=[agent], tasks=[task], verbose=False)
        result = crew.kickoff()
        response = str(result)

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

Conclusion

You now have a CrewAI agent connected to Coinbase through Composio's Tool Router. The agent can perform Coinbase 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
TOOLS

Supported Tools

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

Get Asset Details

Retrieve detailed information about a specific asset from Coinbase International Exchange.

Get Exchange Currency

Tool to retrieve detailed information about a specific currency from Coinbase Exchange API.

Get Instrument Details

Tool to get complete details for a specific trading instrument on Coinbase International Exchange.

Get Historical Funding Rate

Get historical funding rates for a specific instrument from Coinbase International Exchange.

Get Quote Per Instrument

Tool to get the current quote for a specific trading instrument on Coinbase International Exchange.

Get Daily Trading Volume

Tool to retrieve daily trading volume data for specified instruments on Coinbase International Exchange.

Get Market Product Book

Get the current order book (market depth) for a specific product.

Get Product Details

Tool to retrieve detailed information about a specific product (trading pair) from Coinbase Exchange.

Get Product Order Book

Retrieves the order book for a specific product on Coinbase Exchange.

Get Products Ticker

Tool to get real-time ticker information for a specific product on Coinbase Exchange.

Get Products Volume Summary

Tool to retrieve volume summaries for all trading products on Coinbase Exchange.

Get Public Market Trades

Tool to get public market trades for a specific product (trading pair).

Get Server Time

Tool to retrieve the current server time from Coinbase Advanced Trade API.

Get Supported Networks

Tool to retrieve supported blockchain networks for a specific cryptocurrency asset on Coinbase International Exchange.

Get Wrapped Asset Conversion Rate

Tool to get the current conversion rate for a wrapped asset on Coinbase Exchange.

List Exchange Assets

Tool to retrieve all supported assets from the Coinbase International Exchange.

List All Known Currencies

Tool to get all known currencies from Coinbase Exchange API.

List Exchange Products

Tool to retrieve all known trading pairs from Coinbase Exchange.

List Instruments

Tool to list all instruments available for trading on Coinbase International Exchange.

List Instruments Candles

Tool to retrieve aggregated candle (OHLCV) data for instruments on Coinbase International Exchange.

List Loans Assets

Tool to retrieve all assets available for loans from the Coinbase Exchange.

List Market Products

Tool to list market products from Coinbase Advanced Trade API.

List Product Candles

Tool to retrieve historical candlestick (OHLCV) data for a specific trading product on Coinbase Advanced Trade.

List Product Candles

Tool to retrieve historical candlestick (OHLCV) data for a trading pair.

List Products Stats

Tool to get 24-hour statistics for a product on Coinbase Exchange.

List Products Trades

Tool to retrieve recent trades for a specific product from Coinbase Exchange API.

List Wallets

Retrieve all wallets from Coinbase via the CDP SDK.

List Wrapped Assets

Tool to retrieve all wrapped assets from Coinbase Exchange.

FAQ

Frequently asked questions

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

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 Coinbase tools.

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

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