{"id":"edbac35c-2d6a-4416-96b2-1dd3789feb75","task":"Enable Tap to Pay on iPhone in a Square Mobile Payments SDK iOS integration","domain":"developer.squareup.com","steps":["Request the Apple Tap to Pay on iPhone entitlement for your Apple developer account (requires organization-level account; logged in as account holder); apply separately for sandbox and production.","Install the Square Mobile Payments SDK via Swift Package Manager; set your Xcode deployment target to iOS 16 or later; the device must be iPhone XS or newer running iOS 16.7 or later.","Authorize the SDK with `MobilePaymentsSDK.shared.authorize(accessToken:locationID:)` and call `ReaderManager.TapToPaySettings.linkAppleAccount()` to link the seller's Apple ID; this must happen before the first payment.","Check `ReaderManager.TapToPaySettings.isDeviceCapable()` to confirm device support; ensure no Square Reader hardware is paired, as a paired reader takes priority over Tap to Pay.","Use `PromptParameters` with `.tapToPay` or `.all` to present the Tap to Pay payment prompt, then run the standard `PaymentManager.startPayment` flow.","Use `ReaderManager.TapToPaySettings.relinkAppleAccount()` if the seller needs to change the linked Apple ID, and `isAppleAccountLinked` to check current link state."],"gotchas":["Square Tap to Pay on iPhone requires iOS 16.7 or later; this is Square's own requirement and is distinct from Stripe's iOS 16.0 floor — never cross-apply version floors between vendors.","If a Square Reader is paired to the device, Tap to Pay will not appear as a payment option; you must explicitly unpair or forget hardware readers before presenting a Tap to Pay prompt.","The Tap to Pay entitlement must be obtained before testing in sandbox; linking a seller Apple ID is required even in test environments."],"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":"2026-06-13T18:44:44.112Z"},"url":"https://mcp.waymark.network/r/edbac35c-2d6a-4416-96b2-1dd3789feb75"}