CoinMarketCap Universal MCP Server

import dotenv from 'dotenv'; // Load environment variables before other imports dotenv.config(); import { McpServer } from '@modelcontextprotocol/sdk/server/mcp.js'; import { StdioServerTransport } from '@modelcontextprotocol/sdk/server/stdio.js'; import { APP_NAME, APP_VERSION, APP_DESCRIPTION, COINMARKETCAP_API_KEY } from './config/config'; import { ToolRegistry } from './tools/base'; import { registerCryptocurrencyTools } from './tools/cryptocurrency'; import { registerExchangeTools } from './tools/exchange'; import { registerGlobalTools } from './tools/global'; import { registerFearGreedTools } from './tools/fear-greed'; import { BaseApiService } from './services/base'; // Display startup information console.log(`=== ${APP_NAME} ===`); console.log('Environment:', process.env.NODE_ENV || 'development'); console.log('API Key (masked):', COINMARKETCAP_API_KEY ? '****' + COINMARKETCAP_API_KEY.substring(COINMARKETCAP_API_KEY.length - 4) : 'Not set'); // Initialize MCP server const server = new McpServer({ name: APP_NAME, version: APP_VERSION, description: APP_DESCRIPTION }); // Create tool registry const registry = new ToolRegistry(server); // Register all tools registerCryptocurrencyTools(registry); registerExchangeTools(registry); registerGlobalTools(registry); registerFearGreedTools(registry); // Use STDIO transport const transport = new StdioServerTransport(); // Start the server (async () => { try { // Validate API key if (!COINMARKETCAP_API_KEY) { console.error('Error: CoinMarketCap API key is not set'); process.exit(1); } // Try to validate if the API key is valid try { console.log('Validating API key...'); // Use base service for validation const baseService = new BaseApiService(); const isValid = await baseService.validateApiKey(); if (isValid) { console.log('API key validation successful!'); } else { console.warn('API key validation failed!'); console.warn('Continuing anyway...'); } } catch (error: any) { console.warn('API key validation warning:', error.message); console.warn('Continuing anyway...'); } // Connect transport await server.connect(transport); console.log('MCP Server (STDIO) started!'); console.log('Available tools:'); console.log('- get_fear_greed_index'); console.log('- get_cryptocurrency_listings'); console.log('- get_cryptocurrency_quotes'); console.log('- get_cryptocurrency_info'); console.log('- get_cryptocurrency_market_pairs'); console.log('- get_cryptocurrency_ohlcv'); console.log('- convert_cryptocurrency'); console.log('- get_global_metrics'); console.log('- get_exchange_listings'); console.log('- get_exchange_info'); console.log('- get_exchange_map'); } catch (error: any) { console.error('Failed to start server:', error.message); process.exit(1); } })();