About VibeFix
VibeFix is an MCP-connected AI agent for checking public, live web apps as a new user on a phone and computer. It helps app builders find signup and usage problems, presents evidence and likely causes, and can re-check reported issues after a fix without changing the app.
Key features
- 01Test signup and app flows on live sites
- 02Use a real inbox for email confirmation
- 03Return evidence and likely causes
- 04Re-check reported issues after fixes
- 05Assess symptoms from a description
Use cases
- 01Test a published app as a new user
- 02Investigate missing confirmation emails
- 03Review evidence for a reported issue
- 04Verify whether a fix resolved problems
MCP support
Exposes tools for assessing symptoms, starting live-app checks, reading results and re-checking fixes to MCP clients through a remote Streamable HTTP server. Some tools require OAuth sign-in; checks run only after confirming app ownership.
Configuration
Remote servers need no local install. Pick your client, then copy the config or install in one click.
https://vibe-fixer.com/mcpclaude mcp add --transport http com-vibe-fixer-vibefix https://vibe-fixer.com/mcp{"mcpServers":{"com-vibe-fixer-vibefix":{"type":"http","url":"https://vibe-fixer.com/mcp"}}}Open in Cursor{"servers":{"com-vibe-fixer-vibefix":{"type":"http","url":"https://vibe-fixer.com/mcp"}}}Open in VS Code{"mcpServers":{"com-vibe-fixer-vibefix":{"type":"http","url":"https://vibe-fixer.com/mcp"}}}{"mcpServers":{"com-vibe-fixer-vibefix":{"serverUrl":"https://vibe-fixer.com/mcp"}}}Run commands in a terminal; paste JSON into the client’s MCP config and restart. Servers that need sign-in will prompt on first connect.
Tools
4| Parameter | Type | Required | Description |
|---|---|---|---|
| url | string | No | The public URL of the deployed app, if there is one. Never a private or internal address. |
| symptom | string | Yes | What goes wrong, in the words the person used. "The save button does nothing", "it shows a blank white page after login". |
| platform | string | No | The builder it was made with, if known: lovable, base44, v0, bolt, replit, other. |
Details
From the project READMEVibeFix: an AI agent that signs up to your live app like a new person
VibeFix is an AI agent that signs up to your live, published app like a brand-new person, with a real inbox, on a phone and a computer, and shows what breaks. For each problem it confirms, it tells your AI tool what to fix: where it is, the likely cause, and how you'll know it's fixed.
Every app gets one free check. This repository is the MCP connection for it: add the server to your AI tool, then ask it to check your live app.
- Endpoint:
https://vibe-fixer.com/mcp - Transport: Streamable HTTP
- Authentication: two tools need no sign-in; five use OAuth sign-in to your VibeFix account (the client is prompted when you call one)
- Website: vibe-fixer.com
- Server card:
/.well-known/mcp.json - Registry name:
com.vibe-fixer/vibefix
What it does
- Check.
check_live_appstarts a check of your published app. It signs up as a brand-new person with a real inbox, follows the confirmation email, and uses the app on a phone and a computer. Every app gets one free check (one new app a day per account). - Read.
get_check_resultreturns what it found, with evidence. For each problem it confirms, it says where it is, the likely cause, and how you'll know it's fixed. - Confirm my fix. After you fix something,
confirm_fixre-checks those problems on your live app and marks each one fixed or not.
VibeFix checks your app; it never changes it. A full check runs only when you confirm the app is yours; otherwise the check is look-only and does not sign up.
Prices
| Check | Free. Every app gets one free check. |
| Confirm my fix | $9 one time: up to 3 re-checks of one result within 7 days. |
| Confirm my fix, monthly | $19 a month: up to 30 re-checks a month across your results. Nothing runs by itself. Cancel any time. |
If we can't complete your re-check, you get your money back.
Full details: vibe-fixer.com/pricing
Tools
| Tool | Sign-in | What it does |
|---|---|---|
assess_broken_app | none | Describe a symptom in plain words; get the likely cause, the evidence that would confirm it, and what a fix involves. Reads the description only: no code, no access to your app. |
get_fix_options | none | Returns the link to a sign-up check of your live app and how it works. Read-only: starts nothing, charges nothing. |
list_projects | OAuth | Lists the checks on your VibeFix account. Read-only. |
check_repair_status | OAuth | Says whether one check is still running. Read-only. |
check_live_app | OAuth | Starts a check of your live app. Every app gets one free check. |
get_check_result | OAuth | Reads what a check (or a re-check) found. Read-only. |
confirm_fix | OAuth | Re-checks the reported problems on your live app after a fix. Re-checks are paid (Confirm my fix). |
Connect
Claude Code
claude mcp add --transport http vibefix https://vibe-fixer.com/mcp
Cursor
Add to ~/.cursor/mcp.json:
{ "mcpServers": { "vibefix": { "url": "https://vibe-fixer.com/mcp" } } }
Or use the one-click link on vibe-fixer.com/tools.
VS Code
Add to .vscode/mcp.json:
{ "servers": { "vibefix": { "type": "http", "url": "https://vibe-fixer.com/mcp" } } }
Claude (desktop and web)
Go to Customize, Connectors, press +, then Add custom connector. Paste https://vibe-fixer.com/mcp and press Add.
Replit, Lovable and other tools
See vibe-fixer.com/tools. Any tool that takes a remote MCP server works with the address above. VibeFix is independent. Product names belong to their owners and are used only to say VibeFix works with them; VibeFix is not affiliated with or endorsed by them.
As a plugin
claude plugin marketplace add yos88da/vibefix-mcp
claude plugin install vibefix@vibefix
This repository is also an Agent Plugins package (plugin.json, mcp.json).
Example prompts
- "Check my live app at https://example.com like a brand-new user."
- "Confirm my fix: re-check the problems from my last check."
- "New people say the confirmation email never arrives. What is the likely cause?"
Limits
- Only apps with a public web address can be checked.
- The AI agent is often right and sometimes wrong. Look at the evidence each finding shows.
assess_broken_appworks from a description alone and says so in its answer.
Privacy and support
Privacy: vibe-fixer.com/privacy. Terms: vibe-fixer.com/terms. Support: [email protected].
This repository contains documentation and plugin metadata only. The service itself is at vibe-fixer.com.
Comments
New to MCP?
From what the protocol is to installing your first server, these answers cover most first questions.
An open protocol that defines how AI applications connect to external tools and data in a uniform way. Clients talk to the model; MCP servers provide tools, resources and prompt templates. They exchange standard messages, so one server can be reused by many clients.