Lovable
security
API Keys Exposed in Lovable Frontend Code
Your Lovable app has API keys, database credentials, or other secrets visible in the browser's source code or network requests. Anyone who views your site can see these keys and potentially abuse them.
This is one of the most critical security issues in AI-generated apps. Lovable may place API keys directly in your frontend JavaScript, making them accessible to anyone who opens browser developer tools. Attackers can use these keys to access your database, send emails on your behalf, or rack up charges on your payment processor.
You might discover this when you receive an unexpectedly high bill from a service, when your database is tampered with, or when a security-conscious user reports the exposure.
Error Messages You Might See
Unauthorized: Invalid API key
403 Forbidden - Access denied
Your API key was found in a public repository
Billing alert: Unusual usage detected
Common Causes
- Keys in environment variables loaded client-side — Lovable may use VITE_ or NEXT_PUBLIC_ prefixed environment variables that get bundled into the frontend code
- Direct API calls from the browser — Instead of routing through a backend, the app calls third-party APIs directly from JavaScript with the key embedded
- Hardcoded credentials in source files — API keys placed directly in .ts or .js files rather than environment variables
- Supabase anon key confusion — Misunderstanding which Supabase keys are safe to expose (anon key) vs which must stay secret (service_role key)
- No server-side proxy — The app architecture doesn't include a backend to securely handle API calls
How to Fix It
- Audit your source code — Open browser DevTools (F12), go to Sources tab, and search for keywords like 'key', 'secret', 'password', 'token' in your JavaScript bundles
- Move sensitive keys to the backend — Create server-side API routes (Supabase Edge Functions or a backend service) that hold your secrets and proxy requests
- Rotate compromised keys immediately — If keys were exposed in production, generate new ones in each service's dashboard and revoke the old ones
- Use Row Level Security — If using Supabase, configure RLS policies so even if the anon key is exposed, users can only access their own data
- Check your Git history — Even if you remove keys from code now, they may still be in previous commits. Consider the keys compromised if they were ever committed
Real developers can help you.
Kingsley Omage
Fullstack software engineer passionate about AI Agents, blockchain, LLMs.
Antriksh Narang
5 years+ Experienced Dev (Specially in Web Development), can help in python, javascript, react, next.js and full stack web dev technologies.
Jared Hasson
Full time lead founding dev at a cyber security saas startup, with 10 yoe and a bachelor's in CS. Building & debugging software products is what I've spent my time on for forever
Stanislav Prigodich
15+ years building iOS and web apps at startups and enterprise companies. I want to use that experience to help builders ship real products - when something breaks, I'm here to fix it.
Rudra Bhikadiya
I build and fix web apps across Next.js, Node.js, and DBs.
Comfortable jumping into messy code, broken APIs, and mysterious bugs.
If your project works in theory but not in reality, I help close that gap.
Vlad Temian
15+ years shipping production infrastructure for startups. Former CTO at qed.builders (acquired by The Sandbox).
Cursor ambassador and agentic tooling builder.
I've scaled systems, automated deployments, and built observability tools for AI coding workflows. I specialize in taking vibe-coded apps from broken prototype to production-ready: fixing Supabase auth/RLS, Stripe integrations, deployment pipelines, and cleaning up AI-generated spaghetti.
I build tools in this space (agentprobe, claudebin, micode) and understand both sides: how AI generates code and why it breaks.
https://blog.vtemian.com/
Meïr Ankri
Full-stack developer specializing in React / Next.js / Node.js with 6+ years of experience. I've worked across various sectors including automotive (Reezocar/Société Générale), healthcare (Medical Link SaaS), and e-commerce (Glasman). I build web apps end-to-end, from architecture to production, with a focus on scalability, performance, and code quality. I also mentor junior developers and contribute to technical decisions and code reviews.
Taufan
I’m a product-focused engineer and tech leader who builds scalable systems and turns ideas into production-ready platforms.
Over the past years, I’ve worked across startups and fast-moving teams, leading backend architecture, improving system reliability, and shipping products used by thousands of users. My strength is not just writing code — but connecting product vision, technical execution, and business impact.
hanson1014
Full-stack developer experienced in fixing and deploying AI-generated apps from Lovable, Bolt.new, Cursor, and Replit. I specialize in debugging Supabase integration issues (auth flows, RLS policies, database connections), fixing broken deployments, resolving routing/blank screen problems, and cleaning up messy React/Vite codebases. I also build production apps with the Claude API and have shipped a Mac desktop dev tool (Nexterm from scratch. Based in Hong Kong, fast turnaround.
Dor Yaloz
SW engineer with 6+ years of experience,
I worked with React/Node/Python
did projects with React+Capacitor.js for ios
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Get HelpFrequently Asked Questions
Is the Supabase anon key safe to expose?
The Supabase anon key is designed to be public, but only when combined with proper Row Level Security (RLS) policies. Without RLS, anyone with the anon key can read and write all your data.
How do I know if my keys have been abused?
Check the usage dashboards for each service (Stripe, SendGrid, etc.). Look for unusual spikes in API calls, unexpected charges, or data you didn't create.