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BANKUNITED API INTEGRATION
Turning BankUnited's Mobile Banking App Into a Usable Data Feed
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INTRODUCTION
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BankUnited, N.A. is a Miami Lakes-headquartered national bank
(holding company NYSE: BKU, ~$35B in assets as of Q1 2026) whose
consumer mobile app covers checking, savings, money market and
CD accounts. For PFM platforms, accounting tools and lending
workflows, the real value isn't the app itself — it's the
account ledger, transaction history, statements and bill-pay
records sitting behind it.
This page describes how that data is reached through a
user-consented integration: BankUnited's surfaces are mapped,
the auth and MFA flow is wired in, and the result is a
normalized API plus delivered source code, ready to plug into
PFM dashboards, accounting feeds or cash-management tools.
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SUPPORTED API FEATURES
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• Account & balance access — checking, savings, money
market and CD accounts, with available/ledger balances,
masked account numbers and currency
• Transaction ledger retrieval — posting date, amount,
description, and channel (ACH / wire / P2P / bill pay)
• eStatement access — per-account, per-cycle PDF statements
with multi-year history for audit and retention
• Bill Pay history — per-payee, per-payment records with
status, useful for AP reconciliation
• Transfer record access — internal and external transfer
entries with status and counterparty detail
• User-consented authentication with MFA step-up callback
routing, so prompts are handled by the account holder
• Normalized output schema — BankUnited-specific fields are
mapped to a consistent account/transaction/statement/
payment model for downstream systems
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USE CASES & APPLICATIONS
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[1] Personal Finance Management (PFM) Platforms
• Pull BankUnited checking, savings, MM and CD balances
into a unified consumer dashboard
• Combine with Money Manager-style categorization for
spending insights
• Track savings goals and account activity across products
[2] Accounting & Bookkeeping Software
• Feed transaction-level data into reconciliation workflows
• Replace manual eStatement downloads with automated pulls
• Match bill-pay and transfer records to ledger entries
[3] Lending & Underwriting Workflows
• Assemble statement history for lending packets
• Use account and balance data for income/cash-flow review
• Support KYC refresh with up-to-date account records
[4] Cash Management & Treasury Dashboards
• Monitor multi-account balances (CHK/SAV/MM/CD) in one view
• Track internal and external transfer activity
• Build cash forecasts from real-time balance data
[5] Multi-Bank Account Aggregation
• Combine BankUnited with other regional and national banks
(Chase, Bank of America, Wells Fargo, PNC, Regions, TD
Bank, Truist, Fifth Third, Citizens Bank) into one feed
• Normalize BankUnited Biz (business banking) and consumer
accounts into a single schema
• Support portfolio-wide reporting across a US banking corridor
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BENEFITS & ADVANTAGES
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✓ Normalized API spec — no need to learn BankUnited's
internal field names or app structure
✓ Delivered, runnable source code (Python or Node.js)
✓ MFA-aware design that keeps the account holder in
control of step-up prompts
✓ Covers the full data surface: accounts, transactions,
statements, bill pay and transfers
✓ Built on user-consented access, with consent logging
and revocation support
✓ Includes automated tests for happy-path, MFA challenge,
expired session and statement pagination
✓ Maintenance-cadence revalidation, so platform changes at
BankUnited don't break the downstream schema
• Source-code delivery — starting at $300, paid only
after the integration runs successfully against your
accounts
• Hosted / pay-per-call — no upfront cost, billed per
call, same underlying surface
• Both delivery paths typically complete within one to
two weeks, with sandbox access, NDAs and compliance
paperwork arranged during onboarding
BankUnited's mobile app holds rich account, transaction,
statement and payment data — but it's locked inside a
consumer interface. A user-consented integration turns that
data into a normalized, automatable feed that PFM tools,
accounting platforms and lending systems can rely on, without
depending on fragile screen-scraping or manual exports.
If you're building a PFM, aggregation platform or financial
workflow that needs BankUnited account data, start your brief
today and get a working integration in one to two weeks.