Modern AI-Native Customer Support

Letterbook is an AI-native helpdesk platform that transforms how growing companies handle customer support. Unlike traditional ticketing systems that require extensive training and constant human oversight, Letterbook's AI agent works alongside your team to automatically resolve tickets with human-level accuracy in minutes, not hours.

Built for AI-Forward Teams

Designed for modern SaaS companies and startups scaling past product-market fit, Letterbook solves the critical challenge of maintaining high-quality support without proportionally scaling headcount. The platform launches in 15 minutes—connect your support channels, integrate your database and payment systems, and the AI agent starts resolving tickets immediately with full context from your entire tech stack.

Key Features & Capabilities

• Autonomous AI Agent: Handles refunds, bug triage, account migrations, billing issues, and feature requests by accessing real-time data from connected systems
• Omnichannel Support: Unified inbox for email, Discord, web forms, and mobile app inquiries
• Smart Integrations: Native connections to Stripe, MongoDB, Supabase, PostgreSQL, and Google Play for complete customer context
• Intelligent Triage: Automatic ticket assignment, labeling, and prioritization based on content and urgency
• Self-Service Knowledge Base: Hosted help center and internal documentation for customer self-service
• Custom Workflows: Add tailored actions and automations specific to your support processes
• Performance Analytics: Track response times, resolution rates, and team productivity

How It Works

When a ticket arrives, Letterbook's AI agent immediately analyzes the request, pulls relevant context from your connected systems (customer data, billing history, product usage), consults your knowledge base and company policies, then drafts accurate resolutions. For actions like refunds or plan changes, the agent can execute directly through integrated services like Stripe. Human agents review and approve AI-drafted responses, providing oversight while eliminating repetitive work.

What Sets It Apart

Letterbook's AI-first architecture delivers what traditional helpdesks like Zendesk cannot: immediate deployment without hiring, continuous improvement with every ticket, and zero management overhead. Backed by Y Combinator and trusted by AI-forward companies like Stellar Sleep, Letterbook replaces the weeks of hiring and training required by legacy platforms with an AI agent that starts solving tickets day one.