@cequenceai/mcp-cli/src/bin.ts

Cequence MCP CLI - Command-line tool for setting up Cequence MCP servers with AI clients

#!/usr/bin/env node
import { Command } from 'commander';
import chalk from 'chalk';
import ora from 'ora';
import { setupCursor } from './clients/cursor';
import { setupClaude } from './clients/claude';
import { setupWindsurf } from './clients/windsurf';
import { validateMcpUrl } from './utils/validation';

const program = new Command();

program
  .name('cequence-mcp')
  .description('Cequence MCP CLI - Command-line tool for setting up Cequence MCP servers with AI clients')
  .version('1.3.0');

program
  .command('cursor')
  .description('Setup Cequence MCP server with Cursor IDE')
  .requiredOption('-u, --url <url>', 'Cequence MCP server URL')
  .option('-n, --name <name>', 'MCP server name')
  .option('-k, --api-key <key>', 'API key for authentication (if required)')
  .option('--no-refresh', 'Disable automatic token refresh (requires manual login when token expires)')
  .action(async (options) => {
    const spinner = ora('Setting up Cequence MCP server with Cursor IDE...').start();
    
    try {
      // Validate URL
      if (!validateMcpUrl(options.url)) {
        spinner.fail('Invalid Cequence MCP server URL');
        process.exit(1);
      }

      await setupCursor({
        url: options.url,
        name: options.name || 'Cequence MCP Gateway',
        apiKey: options.apiKey,
        noRefresh: options.noRefresh
      });

      spinner.succeed(chalk.green('✅ Cequence MCP server successfully configured for Cursor IDE!'));
      console.log(chalk.cyan('\n📝 Next steps:'));
      console.log('   1. Restart Cursor IDE');
      console.log('   2. Open the command palette (Cmd/Ctrl + Shift + P)');
      console.log('   3. Look for MCP-related commands');
      console.log('   4. Your Cequence-secured APIs are now available as MCP tools');
      
    } catch (error) {
      spinner.fail('Failed to setup Cequence MCP server');
      console.error(chalk.red('Error:'), error instanceof Error ? error.message : String(error));
      process.exit(1);
    }
  });

program
  .command('claude')
  .description('Setup Cequence MCP server with Claude AI')
  .requiredOption('-u, --url <url>', 'Cequence MCP server URL')
  .option('-n, --name <name>', 'MCP server name')
  .option('-k, --api-key <key>', 'API key for authentication (if required)')
  .option('--no-refresh', 'Disable automatic token refresh (requires manual login when token expires)')
  .action(async (options) => {
    const spinner = ora('Setting up Cequence MCP server with Claude AI...').start();
    
    try {
      // Validate URL
      if (!validateMcpUrl(options.url)) {
        spinner.fail('Invalid Cequence MCP server URL');
        process.exit(1);
      }

      await setupClaude({
        url: options.url,
        name: options.name || 'Cequence MCP Gateway',
        apiKey: options.apiKey,
        noRefresh: options.noRefresh
      });

      spinner.succeed(chalk.green('✅ Cequence MCP server successfully configured for Claude AI!'));
      console.log(chalk.cyan('\n📝 Next steps:'));
      console.log('   1. Restart Claude AI application');
      console.log('   2. The Cequence MCP server should be available in your conversation');
      console.log('   3. Start using your secured APIs through Claude\'s interface');
      
    } catch (error) {
      spinner.fail('Failed to setup Cequence MCP server');
      console.error(chalk.red('Error:'), error instanceof Error ? error.message : String(error));
      process.exit(1);
    }
  });

program
  .command('windsurf')
  .description('Setup Cequence MCP server with Windsurf IDE')
  .requiredOption('-u, --url <url>', 'Cequence MCP server URL')
  .option('-n, --name <name>', 'MCP server name')
  .option('-k, --api-key <key>', 'API key for authentication (if required)')
  .option('--no-refresh', 'Disable automatic token refresh (requires manual login when token expires)')
  .action(async (options) => {
    const spinner = ora('Setting up Cequence MCP server with Windsurf IDE...').start();
    
    try {
      // Validate URL
      if (!validateMcpUrl(options.url)) {
        spinner.fail('Invalid Cequence MCP server URL');
        process.exit(1);
      }

      const result = await setupWindsurf({
        url: options.url,
        name: options.name || 'Cequence MCP Gateway',
        apiKey: options.apiKey,
        noRefresh: options.noRefresh
      });
      
      if (!result.success) {
        spinner.fail('Failed to setup Cequence MCP server');
        console.error(chalk.red('Error:'), result.message);
        process.exit(1);
      }

      spinner.succeed(chalk.green('✅ Cequence MCP server successfully configured for Windsurf IDE!'));
      console.log(chalk.cyan(`\n📁 Configuration written to: ${result.configPath}`));
      console.log(chalk.cyan('\n📝 Next steps:'));
      console.log('   1. Restart Windsurf IDE');
      console.log('   2. Open the command palette (Cmd/Ctrl + Shift + P)');
      console.log('   3. Look for MCP-related commands');
      console.log('   4. Your Cequence-secured APIs are now available as MCP tools');
      
    } catch (error) {
      spinner.fail('Failed to setup Cequence MCP server');
      console.error(chalk.red('Error:'), error instanceof Error ? error.message : String(error));
      process.exit(1);
    }
  });

program
  .command('serve')
  .description('Start MCP bridge server (internal use by Claude AI)')
  .requiredOption('-u, --url <url>', 'HTTP MCP server URL to bridge')
  .option('-n, --name <name>', 'MCP server name')
  .option('-k, --api-key <key>', 'API key for authentication (if required)')
  .action(async (options) => {
    // This command creates a stdio-based MCP server that bridges to HTTP
    const http = require('http');
    const https = require('https');
    const { URL } = require('url');
    
    try {
      const serverUrl = new URL(options.url);
      const client = serverUrl.protocol === 'https:' ? https : http;
      
      // Set up stdio for MCP protocol
      process.stdin.setEncoding('utf8');
      process.stdin.resume();
      
      let buffer = '';
      
      process.stdin.on('data', async (chunk) => {
        buffer += chunk;
        
        // Process complete JSON-RPC messages (each ends with newline)
        let newlineIndex;
        while ((newlineIndex = buffer.indexOf('\n')) >= 0) {
          const line = buffer.slice(0, newlineIndex).trim();
          buffer = buffer.slice(newlineIndex + 1);
          
          if (line) {
            try {
              const request = JSON.parse(line);
              
              // Validate JSON-RPC request structure
              if (!request.jsonrpc || !request.method) {
                const errorResponse = {
                  jsonrpc: '2.0',
                  id: request.id || null,
                  error: {
                    code: -32600,
                    message: 'Invalid Request: Missing jsonrpc or method'
                  }
                };
                process.stdout.write(JSON.stringify(errorResponse) + '\n');
                continue;
              }
              
              // Forward request to HTTP MCP server
              const postData = JSON.stringify(request);
              const headers: Record<string, string | number> = {
                'Content-Type': 'application/json',
                'Content-Length': Buffer.byteLength(postData),
                'Accept': 'application/json, text/event-stream'
              };
              
              // Add API key header if provided
              if (options.apiKey) {
                headers['Authorization'] = `Bearer ${options.apiKey}`;
              }
              
              const requestOptions = {
                hostname: serverUrl.hostname,
                port: serverUrl.port,
                path: serverUrl.pathname,
                method: 'POST',
                headers,
                timeout: 30000 // 30 second timeout
              };
              
              const httpReq = client.request(requestOptions, (httpRes: any) => {
                let responseData = '';
                
                httpRes.on('data', (chunk: any) => {
                  responseData += chunk;
                });
                
                httpRes.on('end', () => {
                  try {
                    if (responseData.trim()) {
                      const response = JSON.parse(responseData);
                      
                      // Ensure response has proper JSON-RPC structure
                      if (!response.jsonrpc) {
                        response.jsonrpc = '2.0';
                      }
                      if (response.id === undefined) {
                        response.id = request.id;
                      }
                      
                      process.stdout.write(JSON.stringify(response) + '\n');
                    } else {
                      // Empty response - send error
                      const errorResponse = {
                        jsonrpc: '2.0',
                        id: request.id || null,
                        error: {
                          code: -32603,
                          message: 'Empty response from HTTP server'
                        }
                      };
                      process.stdout.write(JSON.stringify(errorResponse) + '\n');
                    }
                  } catch (parseError: any) {
                    // Invalid JSON response
                    const errorResponse = {
                      jsonrpc: '2.0',
                      id: request.id || null,
                      error: {
                        code: -32603,
                        message: `Invalid JSON response from HTTP server: ${parseError?.message || 'Unknown error'}`
                      }
                    };
                    process.stdout.write(JSON.stringify(errorResponse) + '\n');
                  }
                });
              });
              
              httpReq.on('timeout', () => {
                httpReq.destroy();
                const errorResponse = {
                  jsonrpc: '2.0',
                  id: request.id || null,
                  error: {
                    code: -32603,
                    message: 'Request timeout'
                  }
                };
                process.stdout.write(JSON.stringify(errorResponse) + '\n');
              });
              
              httpReq.on('error', (error: any) => {
                const errorResponse = {
                  jsonrpc: '2.0',
                  id: request.id || null,
                  error: {
                    code: -32603,
                    message: `HTTP request error: ${error?.message || 'Unknown error'}`
                  }
                };
                process.stdout.write(JSON.stringify(errorResponse) + '\n');
              });
              
              httpReq.write(postData);
              httpReq.end();
              
            } catch (parseError: any) {
              // Invalid JSON input
              const errorResponse = {
                jsonrpc: '2.0',
                id: null,
                error: {
                  code: -32700,
                  message: `Parse error: ${parseError?.message || 'Unknown error'}`
                }
              };
              process.stdout.write(JSON.stringify(errorResponse) + '\n');
            }
          }
        }
      });
      
      process.stdin.on('end', () => {
        process.exit(0);
      });
      
      process.stdin.on('error', (error) => {
        console.error('Stdin error:', error);
        process.exit(1);
      });
      
    } catch (error) {
      console.error('Bridge server error:', error);
      process.exit(1);
    }
  });

program
  .command('list')
  .description('List configured Cequence MCP servers')
  .action(async () => {
    console.log(chalk.blue('📋 Configured Cequence MCP Servers:'));
    // TODO: Implement listing functionality
    console.log(chalk.yellow('   Feature coming soon...'));
  });

// Handle unknown commands
program.on('command:*', () => {
  console.error(chalk.red('Invalid command:'), program.args.join(' '));
  console.log(chalk.cyan('Available commands:'));
  console.log('   cursor   - Setup Cequence MCP server with Cursor IDE');
  console.log('   claude   - Setup Cequence MCP server with Claude AI');
  console.log('   windsurf - Setup Cequence MCP server with Windsurf IDE');
  console.log('   serve    - Start MCP bridge server (internal use)');
  console.log('   list     - List configured Cequence MCP servers');
  process.exit(1);
});

// Show help when no command is provided
if (!process.argv.slice(2).length) {
  program.outputHelp();
}

program.parse(process.argv);