Smartlead Simplified MCP Server

#!/usr/bin/env node import { program } from 'commander'; import dotenv from 'dotenv'; import { spawn } from 'child_process'; import path from 'path'; import { fileURLToPath } from 'url'; import fs from 'fs'; import readline from 'readline'; import { createInterface } from 'readline'; // Load environment variables from .env file dotenv.config(); // Get the directory name of the current module const __filename = fileURLToPath(import.meta.url); const __dirname = path.dirname(__filename); // Get version from package.json const version = '1.0.0'; // This should ideally be imported from package.json // License server URL const LICENSE_SERVER_URL = 'https://sea-turtle-app-64etr.ondigitalocean.app/'; // Function to prompt for value interactively async function promptForValue(question: string, hidden = false): Promise<string> { const rl = createInterface({ input: process.stdin, output: process.stdout, }); return new Promise((resolve) => { if (hidden) { process.stdout.write(question); process.stdin.setRawMode(true); let password = ''; process.stdin.on('data', (chunk) => { const str = chunk.toString(); if (str === '\n' || str === '\r' || str === '\u0004') { process.stdin.setRawMode(false); process.stdout.write('\n'); rl.close(); resolve(password); } else if (str === '\u0003') { // Ctrl+C process.exit(0); } else if (str === '\u007F') { // Backspace if (password.length > 0) { password = password.substring(0, password.length - 1); process.stdout.write('\b \b'); } } else { password += str; process.stdout.write('*'); } }); } else { rl.question(question, (answer) => { rl.close(); resolve(answer); }); } }); } // Function to ensure required environment variables are set async function ensureEnvVars(): Promise<void> { // Check for API key if (!process.env.SMARTLEAD_API_KEY) { console.log('\nSmartlead API Key not found.'); const apiKey = await promptForValue('Enter your Smartlead API Key: ', true); if (apiKey) { process.env.SMARTLEAD_API_KEY = apiKey; } else { console.log('Smartlead API Key is required to continue.'); process.exit(1); } } // Check for license key if (!process.env.JEAN_LICENSE_KEY) { console.log('\nJean License Key not found. Defaulting to free tier access.'); process.env.JEAN_LICENSE_KEY = 'JEANPARTNER'; } // Set license server URL if not set if (!process.env.LICENSE_SERVER_URL) { process.env.LICENSE_SERVER_URL = LICENSE_SERVER_URL; } console.log('\nConfiguration complete!\n'); } // Function to save environment variables to .env file async function saveEnvToFile(): Promise<void> { if (process.env.SMARTLEAD_API_KEY || process.env.JEAN_LICENSE_KEY) { const saveEnv = await promptForValue('Do you want to save these settings to a .env file for future use? (y/n): '); if (saveEnv.toLowerCase() === 'y') { try { let envContent = ''; if (process.env.SMARTLEAD_API_KEY) { envContent += `SMARTLEAD_API_KEY=${process.env.SMARTLEAD_API_KEY}\n`; } if (process.env.JEAN_LICENSE_KEY) { envContent += `JEAN_LICENSE_KEY=${process.env.JEAN_LICENSE_KEY}\n`; } if (process.env.LICENSE_SERVER_URL) { envContent += `LICENSE_SERVER_URL=${process.env.LICENSE_SERVER_URL}\n`; } fs.writeFileSync('.env', envContent); console.log('Settings saved to .env file in the current directory.'); } catch (error) { console.error('Error saving .env file:', error); } } } } program .version(version) .description('Smartlead MCP Server CLI'); program .command('start') .description('Start the MCP server in standard STDIO mode') .option('--api-key <key>', 'Your Smartlead API Key') .option('--license-key <key>', 'Your Jean License Key') .action(async (options: { apiKey?: string; licenseKey?: string }) => { // Set env vars from command line options if provided if (options.apiKey) process.env.SMARTLEAD_API_KEY = options.apiKey; if (options.licenseKey) process.env.JEAN_LICENSE_KEY = options.licenseKey; // Ensure required env vars are set (will prompt if missing) await ensureEnvVars(); await saveEnvToFile(); console.log('Starting Smartlead MCP Server in STDIO mode...'); // Run as a separate process instead of trying to import const indexPath = path.join(__dirname, 'index.js'); const child = spawn('node', [indexPath], { stdio: 'inherit', env: process.env }); process.on('SIGINT', () => { child.kill(); process.exit(); }); }); program .command('sse') .description('Start the MCP server in SSE mode for n8n integration') .option('-p, --port <port>', 'Port to run the server on', '3000') .option('--api-key <key>', 'Your Smartlead API Key') .option('--license-key <key>', 'Your Jean License Key') .action(async (options: { port: string; apiKey?: string; licenseKey?: string }) => { // Set env vars from command line options if provided if (options.apiKey) process.env.SMARTLEAD_API_KEY = options.apiKey; if (options.licenseKey) process.env.JEAN_LICENSE_KEY = options.licenseKey; // Ensure required env vars are set (will prompt if missing) await ensureEnvVars(); await saveEnvToFile(); console.log(`Starting Smartlead MCP Server in SSE mode on port ${options.port}...`); console.log(`Connect from n8n to http://localhost:${options.port}/sse`); // Use supergateway to run in SSE mode const indexPath = path.join(__dirname, 'index.js'); const supergateway = spawn('npx', [ '-y', 'supergateway', '--stdio', `node ${indexPath}`, '--port', options.port ], { shell: true, stdio: 'inherit', env: process.env }); process.on('SIGINT', () => { supergateway.kill(); process.exit(); }); }); program .command('config') .description('Show current configuration and set up environment variables') .option('--api-key <key>', 'Set your Smartlead API Key') .option('--license-key <key>', 'Set your Jean License Key') .action(async (options: { apiKey?: string; licenseKey?: string }) => { if (options.apiKey) process.env.SMARTLEAD_API_KEY = options.apiKey; if (options.licenseKey) process.env.JEAN_LICENSE_KEY = options.licenseKey; await ensureEnvVars(); await saveEnvToFile(); console.log('\nSmartlead MCP Server Configuration:'); console.log(`API URL: ${process.env.SMARTLEAD_API_URL || 'https://server.smartlead.ai/api/v1'}`); console.log(`License Server: ${process.env.LICENSE_SERVER_URL || LICENSE_SERVER_URL}`); console.log(`License Status: ${process.env.JEAN_LICENSE_KEY ? 'Configured' : 'Not Configured'}`); console.log('\nConfiguration saved and ready to use.'); }); program.parse(process.argv); // Default to help if no command is provided if (!process.argv.slice(2).length) { program.outputHelp(); }