Payments Module — FingerPay

Use Cases

Payment Applications

🛒

Retail POS

In-store fingerprint payments. No cards, no wallets, just tap and pay.

💻

E-Commerce

One-touch checkout online. Reduce cart abandonment by 40%.

🍔

Quick Service

Fast food and coffee shops. Speed up lines with instant biometric payment.

🎫

Ticketing

Events, transportation, and venues. Fingerprint for entry and payment.

🏋️

Memberships

Gyms, clubs, and subscriptions. Biometric member identification and billing.

🎰

Gaming

Casinos and gaming venues. Age verification plus cashless payments.

Integrations

Payment Processors

💳

Stripe

Ready

🔷

Adyen

Ready

🟦

Square

Q2 2026

🅿️

PayPal

Q2 2026

Flow

How Payment Works

1️⃣

Scan

Customer places finger on scanner

2️⃣

Match

Biometric verified in <0.5s

3️⃣

Charge

Payment processed via Stripe/Adyen

4️⃣

Done

Receipt sent, transaction logged

API

Payment Endpoints

payment-initiate.sh

# Initiate fingerprint payment
POST /api/v2/payments/initiate

{
  "merchantId": "MERCH-456",
  "amount": 49.99,
  "currency": "CHF",
  "fingerprintTemplate": "base64_template",
  "items": [
    { "name": "Coffee", "qty": 2 }
  ]
}

# Response: 200 OK
{
  "success": true,
  "paymentId": "PAY-789xyz",
  "status": "completed",
  "stripePaymentIntent": "pi_xxx",
  "receiptUrl": "https://..."
}
                

link-payment-method.sh

# Link card to fingerprint
POST /api/v2/payments/methods/link

{
  "userId": "user_123",
  "fingerprintTemplate": "base64_template",
  "stripePaymentMethod": "pm_card_visa",
  "setDefault": true
}

# Response: 200 OK
{
  "linked": true,
  "methodId": "meth_abc",
  "last4": "4242"
}
                

Compliance

Payment Security

💳

PCI-DSS L1

Payment Card Industry

🔐

3D Secure 2

Enhanced Authentication

🇪🇺

PSD2

EU Payment Directive

🔒

Tokenization

Card Data Protection

Stats

Payment Impact

2s

Avg Checkout Time

40%

Less Cart Abandonment

0.1%

Fraud Rate

98%

Customer Satisfaction

Ready for Payments?

See how FingerPay transforms checkout experience.

Try Demo Contact Sales

Pay withFingerprint