How to integrate Coinranking MCP with Claude Agent SDK

This guide walks you through connecting Coinranking to the Claude Agent SDK using the Composio tool router. By the end, you'll have a working Coinranking agent that can show top trending cryptocurrencies today, get bitcoin price history for last month, list coins with market cap over $1b through natural language commands. This guide will help you understand how to give your Claude Agent SDK agent real control over a Coinranking account through Composio's Coinranking MCP server. Before we dive in, let's take a quick look at the key ideas and tools involved.

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Coinranking is a comprehensive cryptocurrency market data platform offering access to real-time coin prices, market caps, and historical data. Get accurate, up-to-date stats for thousands of digital assets in one place.

14 Tools

Introduction

This guide walks you through connecting Coinranking to the Claude Agent SDK using the Composio tool router. By the end, you'll have a working Coinranking agent that can show top trending cryptocurrencies today, get bitcoin price history for last month, list coins with market cap over $1b through natural language commands.

This guide will help you understand how to give your Claude Agent SDK agent real control over a Coinranking account through Composio's Coinranking MCP server.

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

Also integrate Coinranking with

OpenAI Agents SDKClaude CodeClaude CoworkCodexOpenClawHermesCLIGoogle ADKLangChainVercel AI SDKMastra AILlamaIndexCrewAI

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 Coinranking
  • Configure an AI agent that can use Coinranking as a tool
  • Run a live chat session where you can ask the agent to perform Coinranking 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 Coinranking MCP server, and what's possible with it?

The Coinranking MCP server is an implementation of the Model Context Protocol that connects your AI agent and assistants like Claude, Cursor, etc directly to your Coinranking account. It provides structured and secure access to real-time and historical cryptocurrency market data, so your agent can perform actions like tracking prices, analyzing trends, fetching coin stats, and surfacing trending cryptocurrencies on your behalf.

  • Real-time coin price tracking: Instantly access up-to-date prices for thousands of cryptocurrencies, letting your agent monitor the market or retrieve coin values on demand.
  • Historical performance analysis: Retrieve and analyze historical price data for any coin, so your agent can chart trends and compare past performances.
  • Global market overview: Get comprehensive statistics about the entire crypto market, including total market cap, volume, and dominance, all via your agent.
  • Discover trending assets: Surface the most popular and trending coins based on user engagement, helping your agent highlight coins gaining traction right now.
  • Reference currencies and tags management: Let your agent fetch supported fiat and crypto reference currencies, and retrieve all canonical tags for advanced filtering and categorization.

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 step09 STEPS
1

Prerequisites

Before starting, make sure you have:
  • Composio API Key and Claude/Anthropic API Key
  • Primary know-how of Claude Agents SDK
  • A Coinranking account
  • Some knowledge of Python
2

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.
3

Install dependencies

npm install @anthropic-ai/claude-agent-sdk @composio/core dotenv

Install the Composio SDK and the Claude Agents SDK.

What's happening:

  • @composio/core provides Composio integration for Anthropic
  • @anthropic-ai/claude-agent-sdk is the core agent framework
  • dotenv/config loads environment variables
4

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
5

Import dependencies

import 'dotenv/config';
import readline from 'node:readline';
import { Composio } from '@composio/core';
import { query, type Options } from "@anthropic-ai/claude-agent-sdk";

dotenv.config();
What's happening:
  • We're importing all necessary libraries including the Claude Agent SDK and Composio
  • The dotenv.config() function loads environment variables from your .env file
  • This setup prepares the foundation for connecting Claude with Coinranking functionality
6

Create a Composio instance and Tool Router session

async function chat() {
  const { COMPOSIO_API_KEY, USER_ID } = process.env;
  if (!COMPOSIO_API_KEY || !USER_ID) {
    throw new Error('COMPOSIO_API_KEY and USER_ID required in .env');
  }

  const composio = new Composio({ apiKey: COMPOSIO_API_KEY });

  // Create Tool Router session for Coinranking
  const session = await composio.create(USER_ID, {
    toolkits: ['coinranking'],
  });
  const mcpUrl = session?.mcp.url;
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 Coinranking
  • The returned url is the MCP server URL that your agent will use
7

Configure Claude Agent with MCP

const options: Options = {
  permissionMode: 'bypassPermissions',
  mcpServers: {
    composio: {
      type: 'http',
      url: mcpUrl,
      headers: { 'x-api-key': COMPOSIO_API_KEY }
    }
  },
  systemPrompt: 'You are a helpful assistant with access to Coinranking tools via Composio.',
  maxTurns: 10,
};
What's happening:
  • We're configuring the Claude Agent options with the MCP server URL
  • permissionMode: 'bypassPermissions' allows the agent to execute operations without asking for permission each time
  • The system prompt instructs the agent that it has access to Coinranking
  • maxTurns: 10 limits the conversation length to prevent excessive API usage
8

Create client and start chat loop

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

  console.log('\nChat started. Type "exit" to quit.\n');

  let isProcessing = false;

  async function ask(prompt: string) {
    isProcessing = true;
    rl.pause();

    process.stdout.write('Claude is thinking...');
    const stream = query({ prompt, options });

    let firstChunk = true;
    for await (const msg of stream) {
      const content = (msg as any).message?.content || (msg as any).content;
      if (Array.isArray(content)) {
        for (const block of content) {
          if (block.type === 'text' && block.text) {
            if (firstChunk) {
              process.stdout.write('\r\x1b[K');
              process.stdout.write('Claude: ');
              firstChunk = false;
            }
            process.stdout.write(block.text);
          }
        }
      }
    }
    process.stdout.write('\n\n');

    isProcessing = false;
    rl.resume();
    rl.prompt();
  }

  rl.on('line', async (line) => {
    if (isProcessing) return;

    const input = line.trim();
    if (input === 'exit') {
      rl.close();
      process.exit(0);
    }
    if (input) await ask(input);
    else rl.prompt();
  });

  await ask('What can you help me with?');
}
What's happening:
  • The readline interface is created to handle user input and output
  • The query function is used to send the user's input to the agent
  • The chat loop continues until the user types 'exit' or 'quit'
9

Run the application

try {
  await chat();
} catch (error) {
  console.error(error);
  process.exit(1);
}
What's happening:
  • The chat function is the entry point for the application
  • The try-catch block is used to handle any errors that occur

Complete Code

Here's the complete code to get you started with Coinranking and Claude Agent SDK:

import 'dotenv/config';
import readline from 'node:readline';
import { Composio } from '@composio/core';
import { query, type Options } from "@anthropic-ai/claude-agent-sdk";

async function chat() {
  const { COMPOSIO_API_KEY, USER_ID } = process.env;
  if (!COMPOSIO_API_KEY || !USER_ID) {
    throw new Error('COMPOSIO_API_KEY and USER_ID required in .env');
  }

  const composio = new Composio({ apiKey: COMPOSIO_API_KEY });
  const session = await composio.create(USER_ID, {
    toolkits: ['coinranking']
  });
  const mcp_url = session?.mcp.url;

  const options: Options = {
    permissionMode: 'bypassPermissions',
    mcpServers: {
      composio: {
        type: 'http',
        url: mcp_url,
        headers: { 'x-api-key': COMPOSIO_API_KEY }
      }
    },
    systemPrompt: 'You are a helpful assistant with access to Coinranking tools via Composio.',
    maxTurns: 10,
  };

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

  console.log('\nChat started. Type "exit" to quit.\n');

  let isProcessing = false;

  async function ask(prompt: string) {
    isProcessing = true;
    rl.pause();

    process.stdout.write('Claude is thinking...');
    const stream = query({ prompt, options });

    let firstChunk = true;
    for await (const msg of stream) {
      const content = (msg as any).message?.content || (msg as any).content;
      if (Array.isArray(content)) {
        for (const block of content) {
          if (block.type === 'text' && block.text) {
            if (firstChunk) {
              process.stdout.write('\r\x1b[K');
              process.stdout.write('Claude: ');
              firstChunk = false;
            }
            process.stdout.write(block.text);
          }
        }
      }
    }
    process.stdout.write('\n\n');

    isProcessing = false;
    rl.resume();
    rl.prompt();
  }

  rl.on('line', async (line) => {
    if (isProcessing) return;

    const input = line.trim();
    if (input === 'exit') {
      rl.close();
      process.exit(0);
    }
    if (input) await ask(input);
    else rl.prompt();
  });

  await ask('What can you help me with?');
}

try {
  await chat();
} catch (error) {
  console.error(error);
  process.exit(1);
}

Conclusion

You've successfully built a Claude Agent SDK agent that can interact with Coinranking 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.
TOOLS

Supported Tools

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

Get Coin Details

Retrieve comprehensive details for a specific cryptocurrency including current price, market cap, supply metrics, description, social links, sparkline data, and historical performance.

Get Coin Fiat Prices

Tool to retrieve the current price of a cryptocurrency in all available fiat currencies including USD, EUR, GBP, and more.

Get Coin History

Tool to retrieve historical price data for a specific coin over a time period.

Get Coin Price

Tool to retrieve the current price or historical price at a specific timestamp for a cryptocurrency coin.

Get Coin Price History

Tool to retrieve historical price data points for a specific coin over selectable time periods.

Get Coins

Retrieve a comprehensive list of cryptocurrency coins with detailed market data including prices, market caps, rankings, and price history.

Get Coin Trading Volume History

Tool to retrieve historical trading volume data for a specific coin to build volume charts and analyze liquidity trends.

Get Reference Currencies

Retrieve a comprehensive list of reference currencies including cryptocurrencies, fiat currencies (USD, EUR, etc.

Get Global Crypto Market Stats

Tool to retrieve global cryptocurrency market statistics.

Get Stats for Selected Coins

Tool to retrieve aggregate statistics for a selection of coins.

Get Tag Details

Get detailed information about a specific cryptocurrency tag including market metrics, volume, associated coin count, and dominance data.

Get Tags

Get all available cryptocurrency tags/categories from Coinranking.

Get Trending Coins

Retrieve a list of trending cryptocurrency coins ranked by user engagement and popularity on Coinranking.

Search Suggestions

Tool to search and get suggestions for coins, markets, exchanges, fiat currencies, and categories by name, symbol, or contract address.

FRAMEWORKS

How to build Coinranking MCP Agent with another framework

OpenAI Agents SDK logo

OpenAI Agents SDK

Use Coinranking MCP with OpenAI Agents SDK

Claude Code logo

Claude Code

Use Coinranking MCP with Claude Code

Claude Cowork logo

Claude Cowork

Use Coinranking MCP with Claude Cowork

Codex logo

Codex

Use Coinranking MCP with Codex

OpenClaw logo

OpenClaw

Use Coinranking MCP with OpenClaw

Hermes logo

Hermes

Use Coinranking MCP with Hermes

CLI logo

CLI

Use Coinranking MCP with CLI

Google ADK logo

Google ADK

Use Coinranking MCP with Google ADK

LangChain logo

LangChain

Use Coinranking MCP with LangChain

Vercel AI SDK logo

Vercel AI SDK

Use Coinranking MCP with Vercel AI SDK

Mastra AI logo

Mastra AI

Use Coinranking MCP with Mastra AI

LlamaIndex logo

LlamaIndex

Use Coinranking MCP with LlamaIndex

CrewAI logo

CrewAI

Use Coinranking MCP with CrewAI

FAQ

Frequently asked questions

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

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 Coinranking tools.

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

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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.

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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.

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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.

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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.

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