Square Developer

Build a robust and secure online payment experience with Square APIs.

Add payments however you like.

Build from scratch with Square Web Payments SDK.

Use a pre-built form with Square Checkout API.

Create a custom online payment form that’s responsive, secure, and PCI compliant. Customers can pay quickly with their favorite payment method, and businesses can rest assured they’ll get paid every time.

View the docs

Opt for our simple, Square-hosted solution to integrate payments into any workflow with minimal coding. Businesses will love the flexible features and wide range of payment methods offered.

View the docs

Connect with third-party plug-ins.

Choose existing payment solutions from top eCommerce providers. Most integrations can be completed in just a few clicks — no coding necessary.

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Give customers more payment options.

Single transactions

Take payments for products or services purchased on your site.
Process payments >

Recurring transactions

Store a card on file (with buyers’ consent) and charge it later using your own subscription logic.
Card on file >

Multiparty transactions

Make money by adding a fee on payments processed through your app.
Collect fees >

Digital wallets

Easily connect with Apple Pay or Google Pay to speed up checkout time and increase site conversion.

Focus on building your site. We’ll handle the payments.

Our online payment APIs facilitate your PCI-DSS compliance. We take on the burden of staying compliant, which means you don’t have to worry about assessment fees or potentially expensive data breach fines.

We have a dedicated disputes team to deal with the bank for you. We’ll ask for the documentation we need and take care of the rest with no additional fees.

Get your money faster with Square. We deposit funds into your bank account as soon as the next business day

We use machine learning to analyze every payment in our ecosystem and continuously innovate in fraud prevention.

Square Online Payment APIs and SDKs are free for developers to use.

Square charges a processing fee on bank card transactions.

1,4 % + 25 cèntims

per transacció amb targeta.

Custom rate

Custom pricing packages may be available for partners and large businesses based on payment volume, average transaction size, and more. We’d love to have a conversation about it.

Contact Us >

* Full Pricing Information >


Estàs a punt per començar?

Consulta la guia de configuració i comença a integrar funcions de pagament a la teva aplicació.