npx skills add ...
npx skills add dpearson2699/swift-ios-skills --skill financekit
Access eligible Wallet financial data using FinanceKit and FinanceKitUI. Use when querying transactions or balances, reading Apple Card, Apple Cash, Savings, or U.K. connected-account data, requesting financial-data authorization, using TransactionPicker, enabling iOS 26 background delivery, or saving and checking Wallet orders.
npx skills add dpearson2699/swift-ios-skills --skill financekit
Access eligible financial data from Apple Wallet, including U.S. Apple Card, Apple Cash, Savings, and U.K. connected-account data. FinanceKit provides on-device access to accounts, balances, and transactions with user-controlled authorization. Targets Swift 6.3 / current Apple platforms; query APIs are available from iOS/iPadOS 17.4, TransactionPicker from iOS/iPadOS 18, and background delivery from iOS/iPadOS 26.
Keep FinanceKit guidance focused on financial-data access, Wallet order storage/querying, TransactionPicker, and background delivery. Route Apple Pay checkout to PassKit, widget UI/timeline work to WidgetKit, and Wallet order-tracking email or Apple Business Connect optimization outside this skill.
com.apple.developer.financekit from Apple via the FinanceKit entitlement request form. This is a managed capability; Apple reviews each application.NSFinancialDataUsageDescription to Info.plist -- this string is shown to the user during the authorization prompt.U.S. FinanceKit financial data requires iOS/iPadOS 17.4+ and currently covers eligible Apple Card, Apple Cash, and Savings data; Apple Card Family participants and Apple Cash Family children are excluded. U.K. support requires iOS/iPadOS 18.4+ and uses open banking for supported institutions. Orders APIs are available separately from financial-data query APIs.
Check whether the device supports FinanceKit before making any API calls. This value is constant across launches and iOS versions.
For Wallet orders:
Data availability returning true does not guarantee data exists on the device. Data access can also become temporarily restricted (e.g., Wallet unavailable, MDM restrictions). Restricted access throws FinanceError.dataRestricted rather than terminating.
Request authorization to access user-selected financial accounts. The system presents an account picker where the user chooses which accounts to share and the earliest transaction date to expose.
Query current authorization without prompting:
Once the user grants or denies access, requestAuthorization() returns the cached decision without showing the prompt again. Users can change access in Settings > Privacy & Security > Financial Data.
Accounts are modeled as an enum with two cases: .asset (e.g., Apple Cash, Savings) and .liability (e.g., Apple Card credit). Both share common properties (id, displayName, institutionName, currencyCode) while liability accounts add credit-specific fields.
Balances represent the amount in an account at a point in time. A CurrentBalance is one of three cases: .available (includes pending), .booked (posted only), or .availableAndBooked.
Amounts are always positive decimals. Use creditDebitIndicator to determine the sign:
Use TransactionQuery with Swift predicates, sort descriptors, limit, and offset.
FinanceKit provides factory methods for common filters:
For a transaction field table and more query patterns, read references/financekit-patterns.md.
Use AsyncSequence-based history APIs for catch-up sync, live updates, or resumable sync. These return inserted, updated, and deleted item IDs plus a HistoryToken.
HistoryToken conforms to Codable. Persist it to resume queries without reprocessing data:
If a saved token points to compacted history, the framework throws FinanceError.historyTokenInvalid. Discard the token, then immediately run a fresh catch-up query for the affected account or balance stream so local state and the replacement token are rebuilt. Use isMonitoring: true only for a separate live monitor.
Ongoing budgeting sync should cover the data model the user authorized: account objects for account additions/removals, account balances for trend and widget state, and transactions for spending detail. Use separate history tokens per stream or account so a compacted token only forces resync of the affected stream.
For apps that need selective, ephemeral access without full authorization, use TransactionPicker from FinanceKitUI. Access is not persisted -- transactions are passed directly for immediate use.
FinanceKit supports saving and querying Wallet orders (e.g., purchase receipts, shipping tracking).
iOS 26+ supports background delivery extensions that notify your app of financial data changes outside its lifecycle. User authorization made in the main app is inherited by the extension. Both targets need the FinanceKit entitlement; use App Groups to share data between the app, extension, and related widgets.
These registration methods are synchronous and nonthrowing; do not write try or await.
Available frequencies: .hourly, .daily, .weekly. These are expected minimum intervals between extension launches when data changes; longer frequencies give the extension a larger processing window.
Disable selectively or entirely:
Create a background delivery extension target in Xcode (Background Delivery Extension template). Implement the two async entry points directly on the extension type and return from didReceiveData(for:) only after essential work is saved.
DON'T -- skip availability check:
DO -- guard availability first:
DON'T -- treat amounts as signed values:
DO -- apply the indicator:
DON'T -- assume authorized access persists:
DO -- catch FinanceError:
Use the canonical transaction-history loop above and persist each newToken only after local deletes and upserts commit. Keep separate tokens per stream/account; on invalid-token errors, resync only the affected scope.
Both asset and liability accounts use .debit for outgoing money. But .credit means different things: on an asset account it means money received; on a liability account it means a payment or refund that increases available credit. See references/financekit-patterns.md for a full interpretation table.
FinanceStore.isDataAvailable(.financialData) checked before any API callcom.apple.developer.financekit entitlement requested and approved for the app bundle IDNSFinancialDataUsageDescription set in Info.plist with a clear, specific message.authorized, .denied, .notDetermined)FinanceError.dataRestricted caught and handled gracefullyCreditDebitIndicator applied correctly to amounts (not treated as signed)FinanceError.historyTokenInvalid handled by discarding token and immediately resyncing the affected streamisMonitoring: false when live updates are not needed.accounts, .accountBalances, and/or .transactions