Turn any AI model into a monetized SaaS with token credits
Production-ready AI SaaS core with streaming UI, Gemini 2.0 & OpenAI SDKs, user token metering, and pay-as-you-go credit checkout.
Every module is structured for maintainability, type safety, and zero bloat.
Deduct credits per token or generation; sell credit packs seamlessly.
Switch between Gemini Flash, Pro, and GPT-4o via environment settings.
Low-latency server-sent events (SSE) with smooth animated streaming.
Clean, modular file organization designed to integrate into your existing project in minutes.
src/
├── lib/ai/gemini.ts # Google GenAI client & streaming handler
├── lib/ai/credits.ts # Token ledger & credit sync
├── lib/server/billing.ts # Checkout & one-off credit packs
└── routes/chat/ # Streaming chat & prompt interfaceProduction-grade payment processing with cryptographic Svix webhook verification.
Pre-configured signature verification handler for order.created, customer.subscribed, and refund events.
Buyers can manage invoices, upgrade license seats, and access updated repositories anytime.
Instant automated repository invitation via Polar.sh with continuous git pull version updates.
Every starter kit and UI primitive adheres to strict engineering benchmarks.
End-to-End Strict TypeScript & Dart
Verified Webhook Security
Clean, Modular Architecture
Continuous Maintenance
Everything you need to know about licensing, setup, and support.
DevPreFlight provides production-grade starter kits and boilerplates categorized into 3 distinct tiers: Tier 1 (Micro Modules, $19-$29) for single-purpose utilities like webhook handlers or UI kits; Tier 2 (Core Feature Kits, $49-$69) for core auth, payment, and database setups; and Tier 3 (The All-in-One Mega Starter Kit, $99-$149) for complete full-stack SaaS boilerplates with lifetime updates and instant GitHub repository access.