Uploaded December 2019 | Updated September 2026, 1 day ago

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Take in-person payments from mobile apps using an embedded checkout flow and Square hardware. Reader SDK lets developers embed the Square checkout flow and accept in-person payments in custom apps using Square Readers to simplify chip and NFC payments, address EMV certification requirements, and make PCI compliance easy. The SDK supports authorization, transaction processing, and Reader management.

Reader SDK Documentation – developer.squareup.com/docs/reader-sdk/what-it-does
Reader SDK Quickstart – developer.squareup.com/docs/reader-sdk/quick-start/start
Introducing Square Reader SDK blog post: developer.squareup.com/blog/introducing-square-reader-sdk

Square Developer Community – https://squ.re/slack
Square Developer Twitter – twitter.com/squaredev