v0 generates the UI. Who's testing the flow?
v0 is unbeaten at "prompt to polished interface". But interfaces aren't apps. The auth state, the empty state, the loading state, the error state — that's where v0 output needs human eyes. We provide them.
5 free credits · No card required · Same-day reports
Why v0-generated apps need human QA
v0 is a UI-first generator. The visuals are pixel-perfect. The flows behind them are stitched together late and break first. Humans walk the flows, not the static frames.
v0 ships the static states beautifully
Loading spinners, empty illustrations, error toasts — v0 designs them once. They rarely connect to real state. Humans test what happens for real.
Forms look right, submit wrong
v0 generates form layouts with the correct types and labels. The handler underneath is often a stub. Humans submit the form and report what breaks.
Auth flows are usually missing
v0 hands you a login page. The session, the protected route, the logout — those are on you. Humans walk the whole journey end-to-end.
Loop with v0 in the prompt
Paste our system prompt at the top of your v0 chat. v0 reads our bug reports and edits the components in the next response.
How to wire TestMyVibes into v0
Paste our system prompt into your v0 chat, supply your API key, deploy to Vercel, prompt: "Run the TestMyVibes loop."
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Sign up for TestMyVibes
5 free credits, no card. Copy your API key from Dashboard → API Keys.
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Paste the v0 system prompt
Download from /agent-skills/v0 and paste at the top of your v0 chat (or save as a project instruction).
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Run the loop
Prompt: "Run the TestMyVibes loop." v0 deploys to Vercel, calls our API, waits for the human report, edits the affected components, redeploys, and repeats.
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Read the report
Screen recording, pass/fail checklist, severity-ranked bugs, AI health score. Most reports back within 30 minutes during business hours.
# 1. Save the rule file
# Download from https://testmyvibes.com/agent-skills/v0
# Paste this content at the top of your v0 chat as a system prompt, or save it as a project instruction.
# 2. Set your TestMyVibes API key as a secret named TMV_API_KEY.
# 3. Prompt the agent:
# "Run the TestMyVibes auto-test loop."
# Under the hood, the agent calls:
curl -X POST https://testmyvibes.com/v1/replit/test \
-H "Authorization: Bearer $TMV_API_KEY" \
-H "Content-Type: application/json" \
-H "X-Agent-Skill: v0" \
-H "X-Agent-Iteration: 1" \
-d '{ "url": "https://your-app.example.com",
"feature": "what you just built" }'Paste at the top of your v0 chat as a system prompt.
Looking for the deeper API integration? See the v0 integration page →
What we catch on v0-generated apps
- Verified human checkers — every tester passes a background QA test before joining.
- Real browsers on real devices (desktop, mobile, tablet) — no headless emulation.
- Full screen recording of every session — replay exactly what your tester saw.
- Average response time under 30 minutes during business hours.
$1 per credit. 5 free to start.
1 credit = 2 minutes of human testing = $1.00. You only pay for time used. 5 free credits when you sign up — no card required. Compare that to one angry-user support ticket.
See full pricing →v0 + TestMyVibes FAQ
Does this work for v0 chat or only for Vercel deploys?
Both. As long as you have a URL a tester can open (a v0 preview link or a Vercel deploy), we test it.
Will v0 actually iterate on bug reports?
Yes — that's what the system prompt is for. v0 reads each bug + suggested fix and edits the component on the next message.
Can I cap credit spend?
Yes. The system prompt enforces MAX_ITERATIONS and CREDIT_BUDGET. Server enforces too.
Does this cost extra on top of v0 / Vercel?
Only TestMyVibes credits. v0 and Vercel are billed separately.
v0 designed the screens. Test the app.
5 free credits. No card. Paste one prompt, run the loop.
Test my v0 app →