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How to connect Coinmarketcap to Claude

Connect Claude Web, Desktop and Cowork to Coinmarketcap MCP. Show top 10 cryptocurrencies by market cap, fetch latest bitcoin and ethereum prices, and more using natural language, with authentication handled for you.

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Coinmarketcap is a leading cryptocurrency data platform offering real-time and historical market data on digital coins and exchanges. It empowers users to track prices, volumes, and trends for smarter crypto decisions.

9 Tools

Introduction

Claude is Anthropic's AI assistant, available on the web, in the desktop app, and on mobile. Cowork is its agent for knowledge work, and it runs on all of those surfaces too. Connected to your apps, Claude can work with your files and services to accomplish complex tasks on your behalf.

This guide walks you through the easiest and most secure way to connect your Coinmarketcap account to Claude via Composio Connect, enabling it to show top 10 cryptocurrencies by market cap, fetch latest Bitcoin and Ethereum prices, list all exchanges with highest daily volume, and more such actions on your behalf without compromising your account security.

Setup is the same on Claude Web, Desktop, and Cowork, and you only need to do it once. The connector is tied to your account, so it's available in all three.

Also integrate Coinmarketcap with

OpenAI Agents SDKClaude Agent SDKClaude CodeCodexKimi CodeOpenClawHermesCLIGoogle ADKLangChainVercel AI SDKMastra AILlamaIndexCrewAIPydantic AIAutoGen

Connecting Coinmarketcap to Claude Web, Desktop, and Cowork

1. Open Customize

In Claude Desktop, click Customize in the left sidebar, then select Connectors and click the + icon at the top.

Claude Desktop connectors screen with Add custom connector selected

2. Add the Composio MCP server

Click Add custom connector and paste in the Composio MCP server URL:

bash
https://connect.composio.dev/mcp
Add custom connector dialog with Composio MCP server URL

3. Authorize in your browser

Click Connect. You'll be redirected to a browser window where you can authorize Composio to continue.

Composio authorization screen for Claude Web, Desktop, and Cowork

4. Connect your Coinmarketcap account

Back in Claude, ask it to connect to Coinmarketcap or give it any Coinmarketcap-related task.

For example, ask Claude to:

  • "Show top 10 cryptocurrencies by market cap"
  • "Fetch latest Bitcoin and Ethereum prices"
  • "List all exchanges with highest daily volume"

It will prompt you to authenticate and authorize access.

That's it. Composio's tools are now available in Claude, and your Coinmarketcap account is ready to use.

What is the Coinmarketcap Claude Connector, and what's possible with it?

The Coinmarketcap MCP server is an implementation of the Model Context Protocol that connects your AI agent and assistants like Claude, Cursor, etc directly to your Coinmarketcap account. It provides structured and secure access to live and historical cryptocurrency market data, so your agent can perform actions like fetching crypto prices, mapping coins and exchanges, analyzing global trends, and retrieving detailed asset info on your behalf.

  • Real-time cryptocurrency price tracking: Instantly get the latest market quotes for any supported cryptocurrency, including price, volume, and market cap.
  • Comprehensive asset and exchange mapping: Retrieve and reference unique IDs, symbols, and names for all cryptocurrencies and exchanges to power portfolio and trading automations.
  • Historical listings and data analysis: Access historical exchange listings and past market snapshots to inform investment research or backtesting strategies.
  • Global market metrics aggregation: Let your agent pull up-to-date, aggregated market data like total market cap, trading volume, and dominance statistics for macro analysis.
  • Detailed asset and exchange metadata retrieval: Fetch rich metadata, including logos, descriptions, launch dates, and official links for any crypto asset or exchange—perfect for building dashboards or research tools.

Troubleshooting

1. Why does Claude not use the Composio connector for Coinmarketcap?

The connector can show as connected, but Claude must use it in each Coinmarketcap conversation.

  • Click + at the lower left of the chat, or type /.
  • Hover Connectors.
  • Turn on Composio.
  • Ask Claude to connect to Coinmarketcap again.

2. Why does Claude show an MCP server error before Coinmarketcap connects?

Claude can show Couldn't reach the MCP server or Authorization with the MCP server failed when you add the connector for Coinmarketcap.

  • Check that the connector URL is https://connect.composio.dev/mcp.
  • Connectors run from Anthropic's cloud, so your device network is usually not the problem.
  • Add the connector again from Customize > Connectors, then ask Claude to connect Coinmarketcap.
  • If it fails again, send the error and the ofid_ reference id to support@composio.dev.

3. Why does the Coinmarketcap authorization link not work?

The Composio connector is one server. Your Coinmarketcap account connects separately when Claude asks for it.

  • If the browser does not open, or the link expires, ask Claude to retry the Coinmarketcap connection.
  • Composio creates a fresh Coinmarketcap authorization link.
  • Open that link in your browser and finish the Coinmarketcap sign-in.

4. Why do Coinmarketcap actions fail after they worked before?

The Coinmarketcap connection can expire or lose permission.

  • Ask Claude to inspect the Coinmarketcap connection.
  • If the connection is unhealthy, disconnect it when Claude prompts you.
  • Reconnect the Coinmarketcap account and retry the action.
  • If Claude shows a permission prompt, approve it before Claude changes data in Coinmarketcap.
  • If the action still fails with a permission error, check that the connected account has that permission in Coinmarketcap itself.

5. How do I switch to a different Coinmarketcap account?

Claude can manage the Coinmarketcap connection for you.

  • Ask Claude to disconnect or delete the current Coinmarketcap account.
  • Ask Claude to connect Coinmarketcap again.
  • Open the new Composio authorization link for Coinmarketcap.
  • Sign in with the other Coinmarketcap account in the browser.
  • After the account connects, ask Claude to retry the Coinmarketcap task.

6. Why is my Coinmarketcap connection missing in Claude Desktop or on a Team plan?

The connector belongs to your Claude account, so your Coinmarketcap connection works in Claude Web, Desktop, and Cowork.

  • In Claude Desktop, open Customize > Connectors.
  • Next to Composio, click ⋮ and click Clear cache.
  • If Coinmarketcap tools still do not appear, click ⋮, disconnect, remove the connector, and add it again.
  • On Team or Enterprise, an Owner or Primary Owner must enable the connector before you can connect Coinmarketcap.
TOOLS

Supported Tools

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

Cryptocurrency Listings Latest

Fetch the latest cryptocurrency market listings from CoinMarketCap.

Cryptocurrency Map

Tool to retrieve a mapping of all cryptocurrencies, including their unique IDs, symbols, and names.

Get Latest Cryptocurrency Quotes

Tool to get the latest aggregated global market quotes for one or more cryptocurrencies.

Get cryptocurrency info

Tool to fetch metadata (description, logo, URLs) for one or more cryptocurrencies.

Get exchange info

Tool to get detailed metadata for one or more exchanges.

Get API Key Info

Tool to retrieve your CoinMarketCap API key details, rate limits, and usage statistics.

Global Metrics Quotes Latest

Tool to obtain the latest global cryptocurrency market metrics (market cap, volume, dominance).

Partner Map

Tool to retrieve a mapping of all CoinMarketCap partners with their unique IDs, names, and slugs.

Price Conversion

Tool to convert an amount from one cryptocurrency or fiat currency into another.

FRAMEWORKS

How to build Coinmarketcap MCP Agent with another framework

OpenAI Agents SDK logo

OpenAI Agents SDK

Use Coinmarketcap MCP with OpenAI Agents SDK

Claude Agent SDK logo

Claude Agent SDK

Use Coinmarketcap MCP with Claude Agent SDK

Claude Code logo

Claude Code

Use Coinmarketcap MCP with Claude Code

Codex logo

Codex

Use Coinmarketcap MCP with Codex

Kimi Code logo

Kimi Code

Use Coinmarketcap MCP with Kimi Code

OpenClaw logo

OpenClaw

Use Coinmarketcap MCP with OpenClaw

Hermes logo

Hermes

Use Coinmarketcap MCP with Hermes

CLI logo

CLI

Use Coinmarketcap MCP with CLI

Google ADK logo

Google ADK

Use Coinmarketcap MCP with Google ADK

LangChain logo

LangChain

Use Coinmarketcap MCP with LangChain

Vercel AI SDK logo

Vercel AI SDK

Use Coinmarketcap MCP with Vercel AI SDK

Mastra AI logo

Mastra AI

Use Coinmarketcap MCP with Mastra AI

LlamaIndex logo

LlamaIndex

Use Coinmarketcap MCP with LlamaIndex

CrewAI logo

CrewAI

Use Coinmarketcap MCP with CrewAI

Pydantic AI logo

Pydantic AI

Use Coinmarketcap MCP with Pydantic AI

AutoGen logo

AutoGen

Use Coinmarketcap MCP with AutoGen

FAQ

Frequently asked questions

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

Yes, you can. Claude Cowork 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 Coinmarketcap tools.

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

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