Llama Maverick Hub MCP Server

/** * Stripe MCP Integration Example * * Author: Yobie Benjamin * Version: 0.2 * Date: July 28, 2025 * * Example integration showing how Llama Maverick Hub orchestrates * Stripe MCP operations for complex payment workflows. */ import winston from 'winston'; import { MCPClientManager } from '../clients/mcp-client-manager.js'; import { HubOrchestrator } from '../orchestrator/hub-orchestrator.js'; const logger = winston.createLogger({ level: 'debug', format: winston.format.simple() }); /** * Stripe-specific workflow definitions * These workflows demonstrate multi-service orchestration with Stripe */ export class StripeIntegration { private orchestrator: HubOrchestrator; private clientManager: MCPClientManager; constructor(orchestrator: HubOrchestrator, clientManager: MCPClientManager) { this.orchestrator = orchestrator; this.clientManager = clientManager; /** * Register Stripe-specific workflows * These workflows combine Stripe with other services */ this.registerStripeWorkflows(); } /** * Register pre-defined Stripe workflows * Complex payment operations that span multiple services */ private registerStripeWorkflows(): void { /** * Customer Onboarding Workflow * Creates customer, sets up payment, stores in database */ this.orchestrator.registerWorkflow({ id: 'stripe-customer-onboarding', name: 'Complete Customer Onboarding', description: 'Onboard a new customer with payment setup', steps: [ { id: 'create-customer', service: 'stripe', tool: 'create_customer', arguments: { email: '{{parameters.email}}', name: '{{parameters.name}}', metadata: { source: 'llama-hub', onboarding_date: new Date().toISOString() } } }, { id: 'create-payment-method', service: 'stripe', tool: 'create_payment_method', arguments: { type: 'card', card: '{{parameters.card}}' }, dependsOn: ['create-customer'] }, { id: 'attach-payment-method', service: 'stripe', tool: 'attach_payment_method', arguments: { payment_method: '{{create-payment-method.id}}', customer: '{{create-customer.id}}' }, dependsOn: ['create-payment-method'] }, { id: 'create-subscription', service: 'stripe', tool: 'create_subscription', arguments: { customer: '{{create-customer.id}}', items: '{{parameters.subscription_items}}', default_payment_method: '{{create-payment-method.id}}' }, dependsOn: ['attach-payment-method'], retryPolicy: { maxRetries: 3, backoffMs: 2000 } }, { id: 'store-customer', service: 'database', tool: 'insert_record', arguments: { table: 'customers', data: { stripe_customer_id: '{{create-customer.id}}', email: '{{parameters.email}}', name: '{{parameters.name}}', subscription_id: '{{create-subscription.id}}', status: 'active' } }, dependsOn: ['create-subscription'] }, { id: 'send-welcome-email', service: 'email', tool: 'send_email', arguments: { to: '{{parameters.email}}', subject: 'Welcome to Our Service!', template: 'welcome', data: { name: '{{parameters.name}}', subscription: '{{create-subscription}}' } }, dependsOn: ['store-customer'] } ], context: new Map() }); /** * Refund Processing Workflow * Processes refund with audit trail and notifications */ this.orchestrator.registerWorkflow({ id: 'stripe-refund-processing', name: 'Process Customer Refund', description: 'Handle refund with full audit trail', steps: [ { id: 'retrieve-charge', service: 'stripe', tool: 'retrieve_charge', arguments: { charge_id: '{{parameters.charge_id}}' } }, { id: 'validate-refund', service: 'stripe', tool: 'validate_refund_eligibility', arguments: { charge: '{{retrieve-charge}}', reason: '{{parameters.reason}}' }, dependsOn: ['retrieve-charge'] }, { id: 'create-refund', service: 'stripe', tool: 'create_refund', arguments: { charge: '{{parameters.charge_id}}', amount: '{{parameters.amount}}', reason: '{{parameters.reason}}', metadata: { processed_by: 'llama-hub', workflow_id: '{{workflow.id}}' } }, dependsOn: ['validate-refund'] }, { id: 'log-refund', service: 'database', tool: 'insert_record', arguments: { table: 'refund_audit', data: { refund_id: '{{create-refund.id}}', charge_id: '{{parameters.charge_id}}', amount: '{{parameters.amount}}', reason: '{{parameters.reason}}', timestamp: new Date().toISOString() } }, dependsOn: ['create-refund'] }, { id: 'notify-customer', service: 'email', tool: 'send_email', arguments: { to: '{{retrieve-charge.customer.email}}', subject: 'Refund Processed', template: 'refund_confirmation', data: { refund: '{{create-refund}}', original_charge: '{{retrieve-charge}}' } }, dependsOn: ['log-refund'] } ], context: new Map() }); /** * Subscription Upgrade Workflow * Handles plan changes with proration */ this.orchestrator.registerWorkflow({ id: 'stripe-subscription-upgrade', name: 'Upgrade Customer Subscription', description: 'Process subscription plan upgrade with proration', steps: [ { id: 'retrieve-subscription', service: 'stripe', tool: 'retrieve_subscription', arguments: { subscription_id: '{{parameters.subscription_id}}' } }, { id: 'calculate-proration', service: 'stripe', tool: 'preview_proration', arguments: { subscription: '{{retrieve-subscription}}', new_plan: '{{parameters.new_plan}}' }, dependsOn: ['retrieve-subscription'] }, { id: 'update-subscription', service: 'stripe', tool: 'update_subscription', arguments: { subscription_id: '{{parameters.subscription_id}}', items: [{ id: '{{retrieve-subscription.items.data[0].id}}', price: '{{parameters.new_plan}}' }], proration_behavior: 'create_prorations' }, dependsOn: ['calculate-proration'] }, { id: 'update-database', service: 'database', tool: 'update_record', arguments: { table: 'subscriptions', where: { stripe_subscription_id: '{{parameters.subscription_id}}' }, data: { plan: '{{parameters.new_plan}}', upgraded_at: new Date().toISOString() } }, dependsOn: ['update-subscription'] }, { id: 'send-upgrade-confirmation', service: 'email', tool: 'send_email', arguments: { to: '{{retrieve-subscription.customer.email}}', subject: 'Subscription Upgraded Successfully', template: 'upgrade_confirmation', data: { old_plan: '{{retrieve-subscription.items.data[0].price}}', new_plan: '{{parameters.new_plan}}', proration: '{{calculate-proration}}' } }, dependsOn: ['update-database'] } ], context: new Map() }); logger.info('Registered Stripe integration workflows'); } /** * Execute a Stripe-specific workflow * Convenience method for Stripe operations */ async executeStripeWorkflow( workflowId: string, parameters: Record<string, any> ): Promise<any> { logger.info(`Executing Stripe workflow: ${workflowId}`, { parameters }); try { const result = await this.orchestrator.executeWorkflow( `stripe-${workflowId}`, parameters ); if (result.success) { logger.info(`Stripe workflow completed successfully: ${workflowId}`); } else { logger.error(`Stripe workflow failed: ${workflowId}`, result.errors); } return result; } catch (error) { logger.error(`Stripe workflow execution error: ${workflowId}`, error); throw error; } } /** * Handle Stripe webhooks * Process Stripe events and trigger workflows */ async handleStripeWebhook(event: any): Promise<void> { logger.info(`Processing Stripe webhook: ${event.type}`); try { switch (event.type) { case 'customer.subscription.created': /** * New subscription created * Trigger onboarding completion workflow */ await this.orchestrator.executeTool('hub_execute_workflow', { workflowId: 'stripe-onboarding-complete', parameters: { subscription: event.data.object } }); break; case 'charge.failed': /** * Payment failed * Trigger retry and notification workflow */ await this.orchestrator.executeTool('hub_execute_workflow', { workflowId: 'stripe-payment-failure', parameters: { charge: event.data.object } }); break; case 'customer.subscription.deleted': /** * Subscription cancelled * Trigger cleanup workflow */ await this.orchestrator.executeTool('hub_execute_workflow', { workflowId: 'stripe-subscription-cleanup', parameters: { subscription: event.data.object } }); break; default: logger.debug(`Unhandled Stripe event type: ${event.type}`); } } catch (error) { logger.error(`Failed to handle Stripe webhook: ${event.type}`, error); throw error; } } /** * Smart payment routing * Uses Llama AI to determine best payment processing strategy */ async smartPaymentRouting( amount: number, currency: string, customer: any ): Promise<{ method: string; processor: string; reasoning: string; }> { logger.info('Determining optimal payment routing', { amount, currency }); /** * Use Llama to analyze and route payment * AI considers multiple factors for optimal routing */ const routing = await this.orchestrator.executeTool('hub_smart_route', { query: `Determine the best payment processing method for: Amount: ${amount} ${currency} Customer Location: ${customer.location} Customer History: ${customer.payment_history} Risk Score: ${customer.risk_score}`, context: { available_processors: ['stripe', 'paypal', 'square'], fee_structures: { stripe: '2.9% + $0.30', paypal: '2.99% + $0.49', square: '2.6% + $0.10' } } }); return routing; } /** * Fraud detection workflow * Combines Stripe's fraud tools with custom checks */ async runFraudDetection( charge: any, customer: any ): Promise<{ risk_level: 'low' | 'medium' | 'high'; factors: string[]; recommendation: string; }> { logger.info('Running fraud detection', { charge_id: charge.id, customer_id: customer.id }); /** * Parallel fraud checks across services * Aggregate results from multiple sources */ const fraudResults = await this.orchestrator.executeTool('hub_parallel_query', { services: ['stripe', 'fraud_service', 'database'], query: JSON.stringify({ charge: charge, customer: customer, check_type: 'fraud_detection' }) }); /** * Use Llama to synthesize fraud analysis * AI provides comprehensive risk assessment */ const analysis = await this.orchestrator.executeTool('hub_smart_route', { query: 'Analyze these fraud detection results and provide risk assessment', context: fraudResults }); return analysis; } /** * Revenue optimization workflow * Uses AI to optimize pricing and discounts */ async optimizeRevenue( customer: any, product: any ): Promise<{ recommended_price: number; discount_strategy: string; expected_conversion: number; }> { logger.info('Running revenue optimization', { customer_id: customer.id, product_id: product.id }); /** * Gather data from multiple sources * Combine Stripe data with analytics */ const data = await this.orchestrator.executeTool('hub_parallel_query', { services: ['stripe', 'analytics', 'database'], query: JSON.stringify({ customer_segment: customer.segment, product_category: product.category, historical_performance: true }) }); /** * Use Llama for pricing optimization * AI analyzes patterns and suggests pricing */ const optimization = await this.orchestrator.executeTool('hub_smart_route', { query: `Optimize pricing strategy for: Customer Segment: ${customer.segment} Product: ${product.name} Current Price: ${product.price} Historical Data: ${JSON.stringify(data)}`, context: { business_goals: 'maximize_revenue', constraints: { min_margin: 0.3, max_discount: 0.25 } } }); return optimization; } }