Vibe-coded an MVP? Make it a product.
Your agent is only as good as the codebase you start it in. FastReact is the FastAPI + React foundation for production-ready apps, with authentication, billing, and AI usage metering built in. Tested, audited, and actively maintained.
Built With Modern Stack
The Codebase Your Agent Starts In
A 90-second walkthrough: auth, billing, teams, and AI metering, already running before your first prompt.
Five of Many Questions Your App Will Have to Answer
These failures wait until launch, when real money and your reputation are on the line. Be honest: how many boxes can you check?
These five are a glimpse; the full checklist is far longer and keeps growing. Right now, bots are scanning your app for exposed secrets and .env files. We see them probe our own sites every day.
Everything You Need for SaaS Success
Skip months of setup and focus on your unique business logic. FastReact provides all the essential SaaS infrastructure out of the box.
Complete Authentication
Username/password and Google OAuth login, email verification, password reset, and role-based access.
See docsHardened Security
Argon2 password hashing, rate-limited auth, strict security headers, hardened Google sign-in, and sessions done right. Audited end to end so you launch on a safe foundation.
See docsStripe Integration
Payment processing, webhook handling, subscription management, and billing automation.
See docsMulti-Tenant Architecture
Organizations, role-based permissions, team invitations - perfect for B2B and B2C SaaS
See docsAdmin & User Dashboards
Separate admin and user interfaces with role-based access, analytics, and management tools.
See docsLanding Page Template
Conversion-focused marketing template, SEO-optimized out of the box: self-referencing canonicals, clean meta descriptions, and Open Graph / Twitter cards.
See docsAI Credit Billing
Meter AI usage by token, give every plan a monthly credit allowance, and let users top up. Subscription and pay-as-you-go, already wired up.
See docsSPA Performance
React SPA with instant navigation, client-side routing, and superior dev experience.
See docsClean Architecture
Enterprise-grade 3-layer API → Service → Repository pattern with dependency injection and testing
See docsDeploy Anywhere
Docker-first containerization. Deploy to any VPS, cloud provider, or on-premise infrastructure
See docsTransactional Email
Resend, SendGrid, or Azure. Email verification, password reset, and invitations included out of the box.
See docsBuilt-in AI Integration
A working sample AI app wired end to end: LLM calls, streaming responses, and usage tracking you can adapt to your own product.
See docsSave Time and Tokens
Your agent alone won't get you here. It took a senior engineer months of AI-assisted work and hundreds of dollars worth of tokens to get FastReact to production grade. That codebase is where your agent starts.
Authentication System
40+ hours savedComplete user management with OAuth, email verification, and secure sessions
Payment Processing
45+ hours savedStripe subscriptions and webhooks, per-plan usage limits, and AI credit metering with top-ups
Multi-Tenant Architecture
60+ hours savedOrganizations, role-based access, team invitations, and B2B features
Admin & User Dashboard
40+ hours savedAdmin and user interfaces with role-based access and management tools
Database & Migrations
20+ hours savedPostgreSQL setup, schema migrations, and data management
Security Audits
50+ hours savedRecurring audits against a growing correctness checklist: auth flows, webhooks, tenant isolation
Buy once, build forever!
One-time purchase, no recurring fees. All plans include complete source code, documentation, and deploy-anywhere freedom. No vendor lock-in.
Solo
Buy once. Build unlimited projects!
Developer
Buy once. Build unlimited projects!
Team
Larger team or agency? Contact us
No recurring fees. Upgrade anytime with 90% credit from your previous
purchase.
Questions?
Got questions?
Find answers to the most common questions about FastReact below.
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Meet the builder
Hi, I'm Harun, an ex-Amazon software and AI engineer with 15+ years building scalable cloud apps, AI systems, and SaaS products. Based in Toronto.
I built FastReact because I kept wiring the same auth, billing, and multi-tenant scaffolding across my own products and client projects. So I packaged the production stack I was actually using (FastAPI + React) into a starter other devs can ship from.
I'm actively building with it myself. BrokerGuard, an AI-powered insurance fraud detection platform, runs on this exact stack. When you buy FastReact, you're not buying from a faceless template shop. You get direct access to me for support.
Ship production-ready SaaS applications with FastAPI + React. Complete authentication, payments, multi-tenancy, and admin dashboards - deploy anywhere with zero vendor lock-in.
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