It is official api of Mastercard. It lets you create custom payment solutions for your website needs. For example, you can :— - provide consumer friendly merchant details for every transaction. - deliver an entirely digital end-to-end payment experience - parents can use their conversational device to send funds and set spending limits - find contactless merchants on-the-go - build a cashless solution for any parent whose child goes to school using public transport - instantly and securely make payments to your workers and - get updated card information in real-time

The name viafintech refers to the company viafintech GmbH. The names Barzahlen and viacash refer to the same product. Viafintech API v2 allows you to create payment, partial payment, payout, and refund slips customers can use in stores like supermarkets to pay or receive money. Slips are sent to users as an email with a PDF attachment or as a text message. When a store's point of sale system confirms the transaction, viafintech usually immediately calls a Webhook to notify your system about the payment. You can then use this confirmation e.g. to mark an invoice as paid or trigger shipping goods to the customer. The name viafintech refers to the company viafintech GmbH. The names Barzahlen and viacash refer to the same product.

Build customized solutions that accept payments (online, in-person, or in-app), manage products and customers, and handle the day-to-day operations that keep business running. Square APIs are powerful, secure, reliable, and free to use. Square APIs enable you to accept payments securely and integrate your app with Square’s first party product ecosystem. Build full-featured business apps for yourself or millions of Square sellers. Our API Reference is organized around core business workflows: taking payments, managing orders, syncing items and inventory with Square Point of Sale, creating customer records, managing business locations, and enabling Square sellers to use your app. Connect your app to our secure and PCI-compliant platform to accept payments in person, in an app, or online. Take orders via web and mobile applications and send them directly to Square Point of Sale or your own custom application. Enable fast and flexible catalog management, including individual and batch support for retrieval, updates, and deletion. Leverage customer data to create applications that help sellers grow their sales and build customer loyalty. Make better supply chain decisions by creating tools to improve inventory management. Integrate timekeeping or collaboration tools that support sellers and help maintain their high performing teams.

Accept and process cards, wallets, and Local Payment Methods in a single, modern integration. Store customer and payment information to reduce friction at checkout. Build a payment form with the right level of customization for your needs. Add payment methods your customers want to your checkout. Securely store customer information – including payment method information.

API to create payment links

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