How to integrate Coinbase MCP with Mastra AI

This guide walks you through connecting Coinbase to Mastra AI 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 Mastra AI 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.

Get started for free Get a demo

Coinbase

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

Managed auth

Connect Coinbase without auth hassles

We manage OAuth, API keys, token refresh, and scopes — you just build.

Try for free

Introduction

This guide will help you understand how to give your Mastra AI 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.

Also integrate Coinbase with

ChatGPT OpenAI Agents SDK Claude Agent SDK Claude Code Claude Cowork Codex OpenCode Cursor VS Code OpenClaw Hermes CLI Google ADK LangChain Vercel AI SDK LlamaIndex CrewAI

TL;DR

Here's what you'll learn:

Set up your environment so Mastra, OpenAI, and Composio work together
Create a Tool Router session in Composio that exposes Coinbase tools
Connect Mastra's MCP client to the Composio generated MCP URL
Fetch Coinbase tool definitions and attach them as a toolset
Build a Mastra agent that can reason, call tools, and return structured results
Run an interactive CLI where you can chat with your Coinbase agent

What is Mastra AI?

Mastra AI is a TypeScript framework for building AI agents with tool support. It provides a clean API for creating agents that can use external services through MCP.

Key features include:

MCP Client: Built-in support for Model Context Protocol servers
Toolsets: Organize tools into logical groups
Step Callbacks: Monitor and debug agent execution
OpenAI Integration: Works with OpenAI models via @ai-sdk/openai

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:

Discovery: Searches for tools matching your task and returns relevant toolkits with their details.
Authentication: Checks for active connections. If missing, creates an auth config and returns a connection URL via Auth Link.
Execution: Executes the action using the authenticated connection.

Step-by-step Guide

Step by step09 STEPS

Prerequisites

Before starting, make sure you have:

Node.js 18 or higher
A Composio account with an active API key
An OpenAI API key
Basic familiarity with TypeScript

Getting API Keys for OpenAI and Composio

OpenAI API Key

Go to the OpenAI dashboard and create an API key.
You need credits or a connected billing setup to use the models.
Store the key somewhere safe.

Composio API Key

Log in to the Composio dashboard.
Go to Settings and copy your API key.
This key lets your Mastra agent talk to Composio and reach Coinbase through MCP.

Install dependencies

bash

npm install @composio/core @mastra/core @mastra/mcp @ai-sdk/openai dotenv

Install the required packages.

What's happening:

@composio/core is the Composio SDK for creating MCP sessions
@mastra/core provides the Agent class
@mastra/mcp is Mastra's MCP client
@ai-sdk/openai is the model wrapper for OpenAI
dotenv loads environment variables from .env

Set up environment variables

bash

COMPOSIO_API_KEY=your_composio_api_key_here
COMPOSIO_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 your requests to Composio
COMPOSIO_USER_ID tells Composio which user this session belongs to
OPENAI_API_KEY lets the Mastra agent call OpenAI models

Import libraries and validate environment

typescript

import "dotenv/config";
import { openai } from "@ai-sdk/openai";
import { Agent } from "@mastra/core/agent";
import { MCPClient } from "@mastra/mcp";
import { Composio } from "@composio/core";
import * as readline from "readline";

import type { AiMessageType } from "@mastra/core/agent";

const openaiAPIKey = process.env.OPENAI_API_KEY;
const composioAPIKey = process.env.COMPOSIO_API_KEY;
const composioUserID = process.env.COMPOSIO_USER_ID;

if (!openaiAPIKey) throw new Error("OPENAI_API_KEY is not set");
if (!composioAPIKey) throw new Error("COMPOSIO_API_KEY is not set");
if (!composioUserID) throw new Error("COMPOSIO_USER_ID is not set");

const composio = new Composio({
  apiKey: composioAPIKey as string,
});

What's happening:

dotenv/config auto loads your .env so process.env.* is available
openai gives you a Mastra compatible model wrapper
Agent is the Mastra agent that will call tools and produce answers
MCPClient connects Mastra to your Composio MCP server
Composio is used to create a Tool Router session

Create a Tool Router session for Coinbase

typescript

async function main() {
  const session = await composio.create(
    composioUserID as string,
    {
      toolkits: ["coinbase"],
    },
  );

  const composioMCPUrl = session.mcp.url;
  console.log("Coinbase MCP URL:", composioMCPUrl);

What's happening:

create spins up a short-lived MCP HTTP endpoint for this user
The toolkits array contains "coinbase" for Coinbase access
session.mcp.url is the MCP URL that Mastra's MCPClient will connect to

Configure Mastra MCP client and fetch tools

typescript

const mcpClient = new MCPClient({
    id: composioUserID as string,
    servers: {
      nasdaq: {
        url: new URL(composioMCPUrl),
        requestInit: {
          headers: session.mcp.headers,
        },
      },
    },
    timeout: 30_000,
  });

console.log("Fetching MCP tools from Composio...");
const composioTools = await mcpClient.getTools();
console.log("Number of tools:", Object.keys(composioTools).length);

What's happening:

MCPClient takes an id for this client and a list of MCP servers
The headers property includes the x-api-key for authentication
getTools fetches the tool definitions exposed by the Coinbase toolkit

Create the Mastra agent

typescript

const agent = new Agent({
    name: "coinbase-mastra-agent",
    instructions: "You are an AI agent with Coinbase tools via Composio.",
    model: "openai/gpt-5",
  });

What's happening:

Agent is the core Mastra agent
name is just an identifier for logging and debugging
instructions guide the agent to use tools instead of only answering in natural language
model uses openai("gpt-5") to configure the underlying LLM

Set up interactive chat interface

typescript

let messages: AiMessageType[] = [];

console.log("Chat started! Type 'exit' or 'quit' to end.\n");

const rl = readline.createInterface({
  input: process.stdin,
  output: process.stdout,
  prompt: "> ",
});

rl.prompt();

rl.on("line", async (userInput: string) => {
  const trimmedInput = userInput.trim();

  if (["exit", "quit", "bye"].includes(trimmedInput.toLowerCase())) {
    console.log("\nGoodbye!");
    rl.close();
    process.exit(0);
  }

  if (!trimmedInput) {
    rl.prompt();
    return;
  }

  messages.push({
    id: crypto.randomUUID(),
    role: "user",
    content: trimmedInput,
  });

  console.log("\nAgent is thinking...\n");

  try {
    const response = await agent.generate(messages, {
      toolsets: {
        coinbase: composioTools,
      },
      maxSteps: 8,
    });

    const { text } = response;

    if (text && text.trim().length > 0) {
      console.log(`Agent: ${text}\n`);
        messages.push({
          id: crypto.randomUUID(),
          role: "assistant",
          content: text,
        });
      }
    } catch (error) {
      console.error("\nError:", error);
    }

    rl.prompt();
  });

  rl.on("close", async () => {
    console.log("\nSession ended.");
    await mcpClient.disconnect();
    process.exit(0);
  });
}

main().catch((err) => {
  console.error("Fatal error:", err);
  process.exit(1);
});

What's happening:

messages keeps the full conversation history in Mastra's expected format
agent.generate runs the agent with conversation history and Coinbase toolsets
maxSteps limits how many tool calls the agent can take in a single run
onStepFinish is a hook that prints intermediate steps for debugging

Complete Code

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

typescript

import "dotenv/config";
import { openai } from "@ai-sdk/openai";
import { Agent } from "@mastra/core/agent";
import { MCPClient } from "@mastra/mcp";
import { Composio } from "@composio/core";
import * as readline from "readline";

import type { AiMessageType } from "@mastra/core/agent";

const openaiAPIKey = process.env.OPENAI_API_KEY;
const composioAPIKey = process.env.COMPOSIO_API_KEY;
const composioUserID = process.env.COMPOSIO_USER_ID;

if (!openaiAPIKey) throw new Error("OPENAI_API_KEY is not set");
if (!composioAPIKey) throw new Error("COMPOSIO_API_KEY is not set");
if (!composioUserID) throw new Error("COMPOSIO_USER_ID is not set");

const composio = new Composio({ apiKey: composioAPIKey as string });

async function main() {
  const session = await composio.create(composioUserID as string, {
    toolkits: ["coinbase"],
  });

  const composioMCPUrl = session.mcp.url;

  const mcpClient = new MCPClient({
    id: composioUserID as string,
    servers: {
      coinbase: {
        url: new URL(composioMCPUrl),
        requestInit: {
          headers: session.mcp.headers,
        },
      },
    },
    timeout: 30_000,
  });

  const composioTools = await mcpClient.getTools();

  const agent = new Agent({
    name: "coinbase-mastra-agent",
    instructions: "You are an AI agent with Coinbase tools via Composio.",
    model: "openai/gpt-5",
  });

  let messages: AiMessageType[] = [];

  const rl = readline.createInterface({
    input: process.stdin,
    output: process.stdout,
    prompt: "> ",
  });

  rl.prompt();

  rl.on("line", async (input: string) => {
    const trimmed = input.trim();
    if (["exit", "quit"].includes(trimmed.toLowerCase())) {
      rl.close();
      return;
    }

    messages.push({ id: crypto.randomUUID(), role: "user", content: trimmed });

    const { text } = await agent.generate(messages, {
      toolsets: { coinbase: composioTools },
      maxSteps: 8,
    });

    if (text) {
      console.log(`Agent: ${text}\n`);
      messages.push({ id: crypto.randomUUID(), role: "assistant", content: text });
    }

    rl.prompt();
  });

  rl.on("close", async () => {
    await mcpClient.disconnect();
    process.exit(0);
  });
}

main();

Conclusion

You've built a Mastra AI agent that can interact with Coinbase through Composio's Tool Router. You can extend this further by:

Adding other toolkits like Gmail, Slack, or GitHub
Building a web-based chat interface around this agent
Using multiple MCP endpoints to enable cross-app workflows

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.

FRAMEWORKS

How to build Coinbase MCP Agent with another framework

ChatGPT

Use Coinbase MCP with ChatGPT

OpenAI Agents SDK

Use Coinbase MCP with OpenAI Agents SDK

Claude Agent SDK

Use Coinbase MCP with Claude Agent SDK

Claude Code

Use Coinbase MCP with Claude Code

Claude Cowork

Use Coinbase MCP with Claude Cowork

Codex

Use Coinbase MCP with Codex

Cursor

Use Coinbase MCP with Cursor

OpenClaw

Use Coinbase MCP with OpenClaw

Hermes

Use Coinbase MCP with Hermes

CLI

Use Coinbase MCP with CLI

Google ADK

Use Coinbase MCP with Google ADK

LangChain

Use Coinbase MCP with LangChain

Vercel AI SDK

Use Coinbase MCP with Vercel AI SDK

LlamaIndex

Use Coinbase MCP with LlamaIndex

CrewAI

Use Coinbase MCP with CrewAI

OpenCode

Use Coinbase MCP with OpenCode

VS Code

Use Coinbase MCP with VS Code

MORE TOOLKITS

Explore Other Toolkits

Toolkit marketplace

Stripe

Api KeyOauth2

Stripe is a global online payments platform offering APIs for managing payments, customers, and subscriptions. Trusted by businesses for secure, efficient, and scalable payment processing worldwide.

Alpha vantage

Api Key

Alpha Vantage is a financial data platform offering real-time and historical stock market APIs. Get instant, reliable access to equities, forex, and technical analysis data for smarter trading decisions.

Altoviz

Api Key

Altoviz is a cloud-based billing and invoicing platform for businesses. It streamlines online payments, expense tracking, and customizable invoice management.

Benzinga

Api Key

Benzinga provides real-time financial news and data APIs for market coverage. It helps you track breaking news and actionable market insights instantly.

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. Mastra AI 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.

Start with Coinbase.It takes 30 seconds.

Managed auth, hosted MCP servers, and every Coinbase tool your agent needs.Free to start.

Start building

Customer stories

Teams ship real agents on Composio

GET STARTED FOR FREE BOOK A DEMO

Karan skipped his own birthday party to fix our critical issue. It was 10pm and he diverted his Waymo to help us instead. This really sets the bar — it shows the commitment you need when users rely on your software.

Harsha Gaddipati

Co-founder, Slashy

A lot of students tell us that the moment their connected tools start talking to each other inside Opennote feels almost magical. The agent just knows them, and it's immensely helped keep new users on the platform.

Abhi Arya

Co-founder, Opennote

We chose Composio over Pipedream because it delivered depth where it mattered — niche tools and tricky edge cases other platforms simply ignored. That gave us confidence to scale without compromising.

Nirman Dave

CEO, Zams

As a solo builder, shipping fast is life or death. The only way I can outcompete incumbents is by outmanoeuvring them. Getting bogged down managing agent auth would have been a death sentence.

Ryan Yu

Founder, Extra Thursday

Before Composio, adding tool integrations was slow and resource-intensive. Each one could take weeks of engineering time, and maintaining them meant constantly keeping up with API changes.

Tomisin Jenrola

Founder & CEO, SwarmZero

With hands-on help from their founder, we integrated Gmail and Google Drive in just 30 minutes. This level of personal support and commitment is exactly what startups should strive for.

Jerome Leclanche

Co-Founder, Ingram Technologies

How to integrate Coinbase MCP with Mastra AI

Connect Coinbase without auth hassles

Introduction

Also integrate Coinbase with

TL;DR

What is Mastra AI?

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

What is the Composio tool router, and how does it fit here?

What is Composio SDK?

How the Composio SDK works

Step-by-step Guide

Prerequisites

Getting API Keys for OpenAI and Composio

Install dependencies

Set up environment variables

Import libraries and validate environment

Create a Tool Router session for Coinbase

Configure Mastra MCP client and fetch tools

Create the Mastra agent

Set up interactive chat interface

Complete Code

Conclusion

Supported Tools

How to build Coinbase MCP Agent with another framework

ChatGPT

OpenAI Agents SDK

Claude Agent SDK

Claude Code

Claude Cowork

Codex

Cursor

OpenClaw

Hermes

CLI

Google ADK

LangChain

Vercel AI SDK

LlamaIndex

CrewAI

OpenCode

VS Code

Explore Other Toolkits

Stripe

Alpha vantage

Altoviz

Benzinga

Frequently asked questions

What are the differences in Tool Router MCP and Coinbase MCP?+

Can I use Tool Router MCP with Mastra AI?+

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

How safe is my data with Composio Tool Router?+

Start with Coinbase.It takes 30 seconds.

Teams ship real agents on Composio