Browse categories
Explore
Fiverr Pro
English
$
USD
I will base44 expert base44 bug fixing base44 app security fix cors add rate limiting
Nicholas
About this gig
Your Base44 app works in preview. But can a stranger read another user's data? Is an API key exposed in your frontend? Is a public form being spammed and burning your credits?
I'm a Base44 expert focused on app security and bug fixing. I test your app like a stranger would, using different accounts to reach data that isn't theirs, then fix what I find.
WHAT I FIX
Base44 app security: entity rules so users only see their own data
API keys and secrets exposed in the frontend
Fix CORS errors on backend functions and outside APIs
Add rate limiting to forms, logins and AI calls
Base44 bug fixing and debugging: blank screens, failed functions, login bugs
Supabase RLS checks
WHAT YOU GET
Plain-English report of what was wrong and what changed
Every fix tested before delivery
Free re-fix if a fix doesn't hold
Message me your app link and the problem first. I'll tell you if it's a quick fix or a bigger job. Basic covers one issue.
BASE44 EXPERT . BASE44 BUG FIXING . BASE44 APP FIXING . BASE44 DEBUGGING . BASE44 APP SECURITY . BASE44 SECURITY . FIX CORS . ADD RATE LIMITING . SUPABASE RLS . VIBE CODING
Get to know Nicholas
Nicholas
I turn ideas and workflows into practical AI powered web apps
- FromUnited Kingdom
- Member sinceSep 2026
Languages
English
I help businesses and founders turn ideas, workflows, and repetitive tasks into practical AI-powered web apps. I work with modern AI development tools to build MVPs, dashboards, internal tools, client portals, API integrations, automations, and custom web applications. My focus is clean functionality, simple user experiences, reliable integrations, and solutions that are built around the actual business need rather than unnecessary features. Whether you have an idea, an existing prototype, or an app that needs improvements, I can help take it to the next stage.
Other Vibe Coding Services I Offer
FAQ
What does the Basic package cover?
One issue: a CORS error, one bug, or one exposed API key. If your problem turns out to be bigger, I tell you before touching anything and quote the extra work. Nothing is added without your approval.
How will I know the fix actually worked?
After fixing, I repeat the test with a second account and send you a short screen recording. Standard and Premium also include the written report.
Do you need my Base44 password?
No, never share a password. I need your app link, the error text or a screen recording, and editor or collaborator access if your Base44 plan allows it. Message me and I'll tell you exactly what's needed.
How does your Base44 app security audit work?
I test your app with different user accounts and try to reach data that isn't theirs. I check entity access rules, exposed API keys, login and role checks, then fix what I find and send a written report.
Can you fix CORS errors in Base44 backend functions?
Yes, including calls to outside APIs. Send me the error from your browser console and the page where it happens. A single CORS error fits the Basic package.
What does rate limiting protect me from?
Spam on public forms, repeated login attempts, and runaway AI calls that burn your credits. Premium adds rate limiting to your forms, logins and AI calls. Extra forms can be added for a small fee.
Will your fixes break my app?
I test every affected workflow before delivery and list what I checked in the report. Duplicate your app or save a backup before we start, so you always have a safe version.
What if you find more issues than my package covers?
I stop and tell you what I found, what each fix involves, and the price. You decide whether to add it through an extra or a new package. I never expand the scope without asking.
Do you work on Lovable, Replit or Bolt apps?
Yes, for the same problems: exposed keys, open data rules, CORS errors and Supabase RLS. Message me your app link first so I can confirm it's a fit before you order.
