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Interview Questions and Answers

Braintree is a payment gateway and merchant account provider that enables businesses to accept online payments through credit cards, PayPal, Venmo, Apple Pay, Google Pay, and other digital wallets.

Braintree is owned by PayPal but offers a developer-friendly API for custom integrations, whereas PayPal focuses more on direct consumer transactions and simpler merchant tools.

A payment gateway securely transmits payment data between the customer, the merchant, and the acquiring bank to complete online transactions.

Key features include PCI compliance support, tokenization, recurring billing, 3D Secure, fraud protection tools, and multi-currency support.

Braintree offers SDKs for Java, Python, Node.js, PHP, Ruby, .NET, and mobile SDKs for iOS and Android.

Client tokenization replaces sensitive card information with a secure token that represents the card data, ensuring secure transactions and PCI compliance.

Braintree uses tokenization, secure vaults, and hosted fields to prevent sensitive card data from touching the merchant’s servers, simplifying PCI DSS compliance.

Hosted Fields are secure, customizable iFrames provided by Braintree that allow customers to enter card details safely while ensuring PCI compliance.

A Merchant Account is a type of bank account that allows businesses to accept card payments; Braintree provides this as part of its service.

You can integrate Braintree using its Drop-in UI for quick setup or custom API integrations for complete control over the payment flow.

The Drop-in UI is Braintree’s pre-built payment form that includes fields for card details and supports PayPal and wallet payments with minimal coding effort.

Braintree provides a subscription API that automates recurring payments with support for trial periods, plan changes, and prorated billing.

A payment method nonce is a one-time-use reference to payment information generated by Braintree’s client SDK during a transaction for secure processing.

Braintree includes built-in fraud detection via Risk Thresholds, Advanced Fraud Tools, and integration with PayPal Fraud Protection.

Yes, Braintree supports over 130 currencies and can process transactions for merchants in multiple countries.

The Vault is a secure storage feature where customer payment methods are tokenized and saved for future use, enabling one-click checkouts and subscriptions.

Braintree offers iOS and Android SDKs for native payment integrations, supporting Apple Pay, Google Pay, and in-app PayPal transactions.

Webhooks notify your server about transaction events such as subscription renewals, disputes, or payment settlements via HTTP POST requests.

3D Secure adds an extra verification step during checkout, such as OTP or biometric confirmation, to prevent fraudulent card transactions.

Braintree’s Control Panel provides transaction summaries, dispute reports, settlement tracking, and custom financial analytics for reconciliation.