Brex MCP Server

import path from 'path'; import { fileURLToPath } from 'url'; import { Client } from '@modelcontextprotocol/sdk/client/index.js'; import { StdioClientTransport } from '@modelcontextprotocol/sdk/client/stdio.js'; // Get the directory name in ES modules const __filename = fileURLToPath(import.meta.url); const __dirname = path.dirname(__filename); async function main() { // Create an MCP client that spawns the server process via stdio transport const transport = new StdioClientTransport({ command: 'node', args: [path.resolve(process.cwd(), 'build/index.js')], env: { ...process.env, LOG_LEVEL: 'DEBUG' } }); const client = new Client( { name: 'brex-mcp-client-test', version: '1.0.0' }, { capabilities: { prompts: {}, resources: {}, tools: {} } } ); try { // Connect to the server console.log('Connecting to Brex MCP server...'); await client.connect(transport); // List resources console.log('\nListing resources...'); const resources = await client.listResources(); console.log('Resources:', JSON.stringify(resources, null, 2)); // Try to read the card expenses resource console.log('\nReading card expenses resource...'); try { const cardExpenses = await client.readResource('brex://expenses/card'); console.log('Card Expenses:', JSON.stringify(cardExpenses, null, 2)); } catch (error) { console.error('Error reading card expenses:', error.message); } // List tools console.log('\nListing tools...'); try { const tools = await client.listTools(); console.log('Tools:', JSON.stringify(tools, null, 2)); } catch (error) { console.error('Error listing tools:', error.message); } // Call tools to validate filtering & pagination // Build a tight date range to reduce result sizes const end = new Date(); const start = new Date(end.getTime() - 7 * 24 * 60 * 60 * 1000); const startIso = start.toISOString(); const endIso = end.toISOString(); console.log('\nCalling get_all_expenses ...'); try { const res = await client.callTool({ name: 'get_all_expenses', arguments: { page_size: 5, max_items: 5, status: ['APPROVED'], payment_status: ['CLEARED'], start_date: startIso, end_date: endIso } }); console.log('get_all_expenses result:', JSON.stringify(res, null, 2)); } catch (error) { console.error('Error calling get_all_expenses:', error.message); } console.log('\nCalling get_all_card_expenses ...'); try { const res2 = await client.callTool({ name: 'get_all_card_expenses', arguments: { page_size: 5, max_items: 5, status: ['APPROVED'], payment_status: ['CLEARED'], start_date: startIso, end_date: endIso } }); console.log('get_all_card_expenses result:', JSON.stringify(res2, null, 2)); } catch (error) { console.error('Error calling get_all_card_expenses:', error.message); } console.log('\nTest completed successfully!'); } catch (error) { console.error('Error:', error); } finally { // Clean up (best-effort) console.log('Terminating server transport...'); try { if (typeof transport.close === 'function') { await transport.close(); } } catch (e) { console.error('Error closing transport:', e); } } } main().catch(console.error);