Honest answer first: there is no genuinely free, no-key public API for AI video generation — every real provider (Replicate, fal, Runway, etc.) requires an API token tied to billing, even if they hand out a little starter credit. So I can't make true model-powered generation run with zero token.

What I can do — and just did — is add a built-in Demo Mode so the app is fully usable for free without any token. When no REPLICATE_API_TOKEN is set, it returns sample videos through the same queued → generating → ready flow, so everything works end-to-end. The moment you add a token, it automatically switches to real generation.

Let me read the current routes and wire this in.

I'll add a demo fallback. Let me update the models config with sample clips, then the two routes.

Now the status route — handle the demo- id:

Now let me add a small note in the UI so users know Demo Mode is active. Let me check the generator component header area.

I'll add a Demo Mode badge that appears once a generation returns demo: true.

Now let me verify the full demo flow works in the browser:

Tested demo flow

Let me snapshot to get proper refs and drive the flow step by step.

Ran demo generation

The prompt is filled and Generate is enabled. The result appears below the fold — let me scroll down to verify the video rendered.

Checked gallery result

Verified working end-to-end. The full flow runs for free: the prompt generated a result, the Demo Mode notice appears, and a real playable video with a download button renders in "Your generations."

Summary

Since no AI video provider offers a truly free, no-token public API, I added a Demo Mode so Camking AI works for free out of the box:

• No token needed: When REPLICATE_API_TOKEN isn't set, the app returns sample clips through the same queued → generating → ready flow, with a clear "Running in Demo Mode" notice.
• Auto-upgrades: As soon as you add a REPLICATE_API_TOKEN in Project Settings → Vars, it switches to real model-powered generation automatically — no code changes.

If you'd rather use a provider with free starter credits, Replicate and fal both give a small amount on signup; just add the token and you're live. Want me to also persist generations so they survive a page refresh?

Camking AI is ready to publish. I can't click Publish for you — that happens from the v0 UI — but here's exactly how:

1. Click the Publish button in the top-right of the screen.
2. v0 will deploy the app to Vercel and give you a live URL you can share.

A couple of things worth knowing before you publish:

• It will work for free immediately thanks to Demo Mode (sample clips), so anyone visiting the live link can use it with no setup.
• To enable real AI generation on the published site, add your REPLICATE_API_TOKEN in Project Settings → Vars. Once it's set, the live app automatically switches from demo clips to real model-powered video — no redeploy code changes needed.

Want me to add anything before you ship it — like a short "How it works" section, an FAQ noting it's free, or persistence so generations survive a refresh?