Brex MCP Server

/** * @file Accounts Resource Handler * @version 1.0.0 * @description Handles Brex accounts resource requests */ import { Server } from "@modelcontextprotocol/sdk/server/index.js"; import { ResourceTemplate } from "../models/resourceTemplate.js"; import { logDebug, logError } from "../utils/logger.js"; import { BrexClient } from "../services/brex/client.js"; import { isBrexAccount } from "../services/brex/types.js"; // Get Brex client function getBrexClient(): BrexClient { return new BrexClient(); } // Define account resource template const accountsTemplate = new ResourceTemplate("brex://accounts{/id}"); /** Capability registration only */ export function registerAccountsCapabilities(server: Server): void { server.registerCapabilities({ resources: { "brex://accounts{/id}": { description: "Brex accounts", mimeTypes: ["application/json"], } } }); } /** Predicate: whether this module should handle the URI */ export function canHandleAccountsUri(uri: string): boolean { return uri.startsWith("brex://accounts") && !uri.startsWith("brex://accounts/card") && !uri.startsWith("brex://accounts/cash"); } /** Pure handler for accounts URIs */ export async function readAccountsUri(uri: string): Promise<any> { logDebug(`Reading account resource: ${uri}`); const brexClient = getBrexClient(); const params = accountsTemplate.parse(uri); if (!params.id) { try { logDebug("Fetching all accounts from Brex API"); const accounts = await brexClient.getAccounts(); logDebug(`Successfully fetched ${accounts.items.length} accounts`); return { contents: [{ uri, mimeType: "application/json", text: JSON.stringify(accounts.items, null, 2) }] }; } catch (error) { logError(`Failed to fetch accounts: ${error instanceof Error ? error.message : String(error)}`); throw error; } } else { try { logDebug(`Fetching account ${params.id} from Brex API`); const account = await brexClient.getAccount(params.id); if (!isBrexAccount(account)) { logError(`Invalid account data received for account ID: ${params.id}`); throw new Error('Invalid account data received'); } logDebug(`Successfully fetched account ${params.id}`); return { contents: [{ uri, mimeType: "application/json", text: JSON.stringify(account, null, 2) }] }; } catch (error) { logError(`Failed to fetch account ${params.id}: ${error instanceof Error ? error.message : String(error)}`); throw error; } } }