Square Feb 24, 2025

Mobile Payments SDK General Availability and Terminal API Features

Article Summary

Square just launched their Mobile Payments SDK to GA with a twist: your phone becomes the card reader. No external hardware required for contactless payments.

Square announces the general availability of their Mobile Payments SDK (successor to Reader SDK) and expanded Terminal API features. The release brings offline payments, tap-to-pay capabilities, and cross-platform support to developers building custom in-person payment solutions across US, Canada, and Australia.

Key Takeaways

Critical Insight

Square's Mobile Payments SDK reaches GA with tap-to-pay support and cross-platform plugins, while Terminal API expands Orders integration to three new countries and simplifies QR payments in Japan.

The Reader SDK migration deadline is December 31, 2025, and the new virtual reader testing capability changes how you validate integrations before launch.

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