PayFence Live Demo

Walk through real API monetization flows. Each demo uses live PayFence tokens, real quota tracking, and authentic 402 Payment Required responses.

Server-side calls (BFF pattern)Tokens never exposed to browserReal PayFence API calls

API Provider Demos

Step-by-step API call demos showing token auth, quota metering, and 402 responses.

FakeExpedia

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Proxy Mode

Travel booking API protected by PayFence Gateway proxy. All traffic flows through the gateway, which handles auth, quota enforcement, and rate limiting. The origin server rejects direct access.

Proxy ModeLaunch Demo

FakeAmazon

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Middleware Mode

E-commerce API with PayFence middleware integrated directly. The app validates tokens on each request, enforces quotas, and returns 402 with checkout URLs when quota is exhausted.

Middleware ModeLaunch Demo

Consumer App Demos

Real consumer apps built on PayFence-protected APIs. See what your API customers would build.

TravelAgent

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Proxy Consumer

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

Proxy ConsumerLaunch Demo

DealFinder

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Middleware Consumer

A price comparison tool scanning FakeAmazon 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 -----> FakeExpedia API     FakeAmazon API <---+
(proxy mode)            (origin-protected)  (middleware mode)
                                            + FakeBestBuy (mock)
                                            + FakeWalmart (mock)

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.