Add VibeFix to Base44 in 1 minute

To add VibeFix to Base44, open Account preferences, then Builder, then MCP Connections, press Add custom MCP and paste https://vibe-fixer.com/mcp as the URL. Base44 allows custom MCP servers on the Builder plan or higher, and the connection works in the AI chat while you build.

Steps

1. Open your workspace menu at the bottom left and choose Account preferences.
2. Under Builder, scroll to MCP Connections and press Add custom MCP.
3. Name: VibeFix. URL: https://vibe-fixer.com/mcp
4. Authentication: choose OAuth and sign in to VibeFix when asked. If that step fails, choose Not required instead.
5. Press Test, then Test & add.

What to ask in the Base44 chat

• "Use VibeFix: new users can't sign up to my app. What is the likely cause?"
• "Use VibeFix to check my published app at https://your-app.base44.app like a brand-new user."

Asking what is wrong, and getting the link to a free check, works without signing in. Starting a check from the chat needs the VibeFix sign-in.

Right after you publish, the Base44 AI may offer one VibeFix check. It only starts one if you say yes.

What the check gives you

An AI agent opens your published app as a brand-new person, signs up with a real inbox and uses the app on a phone and a computer. The free check shows how many problems a new user would hit, plus one screenshot. The full details and the fix prompt for every problem, plus 3 re-checks, are $9 for that app. VibeFix only checks; it never changes your app.

Only check an app that is yours.

Notes

• Base44 says MCP connections are only available in the editor chat while you build, not inside your published app.
• Base44 allows up to 20 MCP servers per account.

Source: Base44: Setting up a custom MCP

VibeFix is independent. Base44 is a trademark of its owner, named here only to show where VibeFix can be added.

Setup steps from Base44's official docs.