PayFence Live Demo

See how PayFence turns any API into a revenue stream — with three billing models, 3-line SDK integration, and webhook notifications. Choose your demo experience below, or try the live demo apps.

Choose Your Demo Experience

Start with the overview, then go deeper.

NO SETUP NEEDED2 min

What is PayFence?

Scroll through — no setup needed

A scroll-driven animated story explaining PayFence. Covers three billing models, 3-line SDK integration, webhook notifications, and freemium revenue funnels — in 2 minutes.

5 full-screen animated sections
3-line SDK integration and webhook flow
Freemium funnel revenue scenario
Animated counters and flow diagrams

Start Demo

LIVE + NARRATIVE3 min

See the Money

Live demo: watch an API go from $0 to $2,196/mo

A 4-section CEO demo with live API calls. Watch the 402 paywall in action, explore the revenue calculator, and see why the AI agent economy makes this urgent.

4 guided sections with Next/Back navigation
Live API call showing 402 paywall + checkout
Revenue calculator with freemium funnel math
AI agent economy + competitive positioning

Start Demo

LIVE API CALLS5 min

Try the API

Live API calls, quota meters, code snippets

Step through real API calls with code snippets. See proxy mode, SDK middleware, HMAC verification, quota enforcement, webhooks, and 402 paywall — all with live requests.

Live API steps across proxy and middleware modes
3-line SDK integration (Node.js and Python)
Webhook events with HMAC signature verification
Free, fixed, and metered billing models

Start Demo

Or try the live demo apps

Live Demo Apps

Real apps built on PayFence-protected APIs. See quota tracking, 402 payment walls, and billing in action.

TravelAgent

Checking

Proxy Consumer

A travel search & booking app consuming SkyRoute via the PayFence gateway. Search flights and hotels, place holds, book trips — with real quota tracking and 402 payment walls.

Proxy ConsumerLaunch Demo

DealFinder

Checking

Middleware Consumer

A price comparison tool scanning CartBay alongside mock retailers. See scan intensity controls, quota burn rates, and 402 payment walls when the API budget runs out.

Middleware ConsumerLaunch Demo

Architecture

Browser (You)
    |
    +--- Demo Console (BFF) --------+--- TravelAgent (BFF) ----+--- DealFinder (BFF) ------+
    |    Step-by-step API demos     |    Travel search app     |    Price comparison app   |
    |                               |                          |                           |
    v                               v                          v                           |
PayFence Gateway -----> SkyRoute API        CartBay API <------+
(proxy mode)            (origin-protected)  (middleware mode)
                                            + MockBestBuy
                                            + MockWalmart

All API tokens remain server-side. The browser never sees or sends PayFence tokens directly. This is the Backend-For-Frontend (BFF) pattern.

200 OK

Request authorized, quota deducted, response returned.

402 Payment Required

Quota exhausted. Response includes checkout URL.

403 Forbidden

Direct origin access blocked. Must go through gateway.