PayPal opens up its new slick mobile SDK to all developers

Expect to see PayPal pop up as a payment option in more apps soon.

Today, the payments company announced that it will open up its new mobile SDK to all mobile developers in 30 countries Feb. 24.

The new technology will enable developers to implement a seamless PayPal checkout experience within their apps and mobile websites. Previously, you had to jump out of an app and log into your PayPal account in a separate screen to use it to pay. The new SDKs sign you in within the app or mobile site, and it’s also smart enough to remember your information for future purchases.

Uber was the first company to adopt the new SDK last fall. The on-demand taxi service will also bring PayPal checkout to its U.K. users on Monday.

“For us, [the new mobile SDK] was all about making sure that we put all the dialogues into the context of the app, no more redirects,” said Stan Chudnovsky, PayPal’s head of growth and special operations, in an interview with VentureBeat last fall.

PayPal has been touting the benefits of its new mobile developer tools since last March. Since then, the company released a new mobile app for the iPhone and Android, and it also snapped up the payments startup Braintree for $800 million.

“A year ago, we migrated a few of our APIs to REST, making it easier for U.S. developers to accept PayPal,” wrote John Lunn, PayPal’s head of developer relations, in a blog post this morning. “Today, a majority of our APIs are built on REST, available globally and no longer [in] beta, including Payment, Authorization, Capture, Void, [and] Refund, so that developers around the world can take full advantage of PayPal’s capabilities. We also redesigned the PayPal Developer site and our sandbox so that developers can find the tools, documentation and resources they need quickly.”