Sell & license your apps. No backend required.

We check IDs.

Sell your apps, deliver licenses, and check IDs at the door. All on your own Stripe, with no backend to run. Payments, subscriptions, bundles, and offline licensing in one velvet rope.

Get started free Read the docs

validate.js
// Check the guest list with a publishable key (safe in client apps)
const response = await fetch('/api/v1/licenses/validate', {
method: 'POST',
headers: {
'Authorization': 'Bearer kb_pub_live_...',
'Content-Type': 'application/json',
},
body: JSON.stringify({ license_key: 'XXXX-XXXX-XXXX-XXXX' })
})
// -> { valid: true, license: { status: "ACTIVE", ... } }

The full security detail

From the cover charge to the door: payments, delivery, and validation, all on one guest list.

Run your own cover charge

Connect Stripe in a click and sell one-time passes or subscriptions. Funds settle straight to you, so you own the till and KeyBouncer never touches your money.

One wristband, every room

Bundle your apps into an all-access pass. A single key waves guests into every app in the bundle, each with its own entitlements.

A branded front door

Pricing, checkout, success, recovery, and billing-portal pages, all hosted and dressed in your brand. You build no front-end.

Guest passes, not master keys

Embed a publishable key in your app to check and stamp licenses. It can never read your guest list or revoke, so you never ship a secret again.

A bouncer at every door

Fast validate / activate / deactivate with hardware locking and per-key device limits. Nobody slips past unchecked.

Works when the line is offline

RSA-signed .lic wristbands check out with no phone-home: hardware-bound, with grace windows and key rotation built in.

From zero to selling

Open the doors in three steps

Connect, create, ship. No proxy, no server, no payment plumbing.

Connect your Stripe

Authorize in one click. Dry-run the whole night in test mode before you open.

Create a plan or bundle

One-time or subscription, for one app or an all-access bundle. Set the price, the device count, and the look.

Hang your velvet rope

Drop the branded buy link on your site. We take the cover, mint the license, and email it automatically.

Start selling free

Already run your own door?

Bring your own everything

Our Stripe storefront is the easy path, not the only one. Keep whatever checkout you already love. KeyBouncer is the bouncer; you pick the ticket booth.

Sell through any provider, or your own checkout
Mint licenses from your backend, safe to retry
Validate in your app with a publishable key
Same bundles, offline licenses, and recovery, no storefront required

GumroadPaddleLemon SqueezyYour own StripeInvoices

Read the management API docs

your-server.js
// After your own checkout succeeds, mint a key
await fetch('/api/v1/licenses', {
method: 'POST',
headers: {
'Authorization': 'Bearer kb_live_...',
'Idempotency-Key': order.id,
},
body: JSON.stringify({
application_id: 'app_123',
email: customer.email,
})
})
// -> returns the new license key. Done.