Add Cash App Pay payment method to the MoonPay ramp

[j0ntz]

Description

Asana task

Adds Cash App Pay as a MoonPay payment method for both buy and sell.

A new cashapp FiatPaymentType is wired through the ramp payment-type plumbing (display name, logo, settlement range, region constraint) and mapped to MoonPay's cash_app payment/payout method. The quote tile renders the Cash App logo with the title "Cash App Pay".

• cashapp added to asFiatPaymentType, with a paymentTypeLogoCashApp theme asset (1024x1024 PNG with a transparent background, logo only, no wordmark) and the cash_app_pay display string.
• MOONPAY_PAYMENT_TYPE_MAP maps cashapp to cash_app, and the plugin's buy and sell allowedCurrencyCodes both carry the new type. MoonPay's live API enumerates cash_app in the buy paymentMethod enum and the sell payoutMethod enum, and returns real quotes for both.
• Settlement window is 5 min to 24 hrs in both directions, matching the other MoonPay wallet methods.
• MoonPay offers Cash App Pay to US customers only, so rampConstraints restricts the payment type to the US, mirroring Venmo.

Also folds in a sort of two ## Unreleased CHANGELOG entries that landed out of group order on develop, which the changelog verification step rejects. No entry text changed.

Asana: https://app.asana.com/1/9976422036640/project/1213843652804305/task/1216538751826868

CHANGELOG

Does this branch warrant an entry to the CHANGELOG?

• Yes
• No

Dependencies

none

Requirements

If you have made any visual changes to the GUI. Make sure you have:

• Tested on iOS device
• Tested on Android device
• Tested on small-screen device (iPod Touch)
• Tested on large-screen device (tablet)

---

Note

Low Risk
Incremental ramp payment-type plumbing with US geo constraint; no auth or core wallet logic changes. MoonPay widget/API mapping is the main integration surface.

Overview
Adds Cash App Pay as a MoonPay buy and sell option for US customers, using a new cashapp fiat payment type wired through display strings, theme logo, settlement ranges, and US-only ramp constraints (same pattern as Venmo).

MoonPay integration maps cashapp to API cash_app, registers it in buy/sell allowedCurrencyCodes, and extends the MoonPay payment method union. Unit tests cover icon and display-name helpers.

Also updates enterAmount typing in fiat plugin types from AppParamList to BuySellTabParamList, and reorders duplicate Unreleased CHANGELOG bullets so changelog verification passes (no wording changes).

^{Reviewed by Cursor Bugbot for commit c583ddc. Bugbot is set up for automated code reviews on this repo. Configure here.}

[j0ntz]

📸 Test evidence

cashapp pay buy quote

cashapp moonpay widget

cashapp pay sell quote

Captured by the agent's in-app test run (build-and-test).

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[j0ntz]

📸 Test evidence (after transparency fix)

cashapp logo transparent

Captured by the agent's in-app test run (build-and-test).