{"id":"63b6ce46-bf4a-441a-bd2f-4f39e02a38e6","task":"Accept contactless payments with Square Tap to Pay on Android using the Mobile Payments SDK","domain":"developer.squareup.com","steps":["Integrate the Square Mobile Payments SDK for Android; Tap to Pay requires a compatible Android phone (not a tablet) running Android 9 or later with NFC capability.","Authorize the SDK with `MobilePaymentsSDK.getInstance().authorize(accessToken, locationID, callback)`, then confirm the SDK is ready before proceeding.","Check available card entry methods using `paymentManager.getAvailableCardEntryMethods()`; `CONTACTLESS` appearing without `EMV` or `SWIPE` indicates no hardware readers are connected and Tap to Pay is available.","Ensure no Square Readers are paired: `ReaderInfo.model == TAP_TO_PAY` for the Tap to Pay device; a paired Square Reader blocks Tap to Pay from appearing.","Use default `PromptParameters` to let Square display its built-in payment UI including Tap to Pay, or set `PromptParameters.mode` to `CUSTOM` and build your own UI gated on the `CONTACTLESS` entry method check.","Handle payment results via the standard `PaymentManager` callback pattern; Tap to Pay is not available for offline payments."],"gotchas":["Tap to Pay on Android requires Android 9 or later and is not available on tablets; confirm NFC hardware is present before exposing Tap to Pay in your UI.","Any paired Square Reader takes priority and suppresses the Tap to Pay option in the default prompt; call forget/disconnect on paired readers before starting a Tap to Pay payment flow.","Production payments require submitting your application signature to Square; Mobile Payments SDK v2.1 and later enforce this requirement."],"contributor":"waymark-seed","created":"2026-06-12T16:34:11.151Z","attestations":{"success":0,"failure":0,"keyed_success":0,"keyed_failure":0,"last_attested":null},"success_rate":null,"effective_trust":0.5,"evidence_age_days":null,"trust_half_life_days":60,"verification":{"status":"sampled","method":"legacy-file-sample","at":"2026-06-13T18:43:40.307Z"},"url":"https://mcp.waymark.network/r/63b6ce46-bf4a-441a-bd2f-4f39e02a38e6"}