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Quail Creek Bank Mobile API
Integrate QCB account data via the Apiture Xpress Mobile stack
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INTRODUCTION
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Quail Creek Bank has operated from a single Oklahoma City address on North May Avenue
since 1974. What matters for integration is not the size of the institution — it is
the platform underneath it. The Quail Creek Bank Mobile app runs on Apiture's Xpress
Mobile white-label stack (Android package: com.apiture.xpressmobile.qcbocok.sub),
and that platform choice is what determines how the data is reached.
The Apiture platform uses a documented OpenID Connect sign-in pattern rather than a
one-off home-grown scheme. That means the authorized route is well-characterized
before a single packet is captured. Balances, transaction history, internal and
external transfers, Bill Pay, payees, and eStatements sit behind a stable bearer-token
flow — structured, per-user data that integrators can work with reliably.
OpenBanking Studio delivers a complete, tenant-pinned client for this app: the
OpenAPI spec, the auth-flow report, runnable source in Python and Node.js, and
automated tests against a consenting account. Engagements start at $300 with source-
code delivery, or pay-per-call with nothing upfront.
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SUPPORTED API FEATURES
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The Quail Creek Bank Mobile integration covers the following data surfaces and
capabilities, each confirmed against the app's own feature list and the bank's
digital-banking page:
• Account balance retrieval — current balance per linked deposit and loan account,
suitable for cash-position dashboards and reconciliation workflows
• Transaction history search — filterable by date range, transaction amount, and
check number; date-range paging included; not a flat recent-activity list
• Internal and external transfer access — per-movement records with status for
transfers between QCB accounts and to other financial institutions
• Bill Pay and payee data — scheduled and recent payments plus full payee records;
future-dated payments visible for forecasting
• eStatement retrieval — approximately 18 months of statement history in PDF form,
suitable for underwriting and document archival
• OpenID Connect PKCE authentication — the Apiture-documented token flow (PKCE
code-verifier/challenge, bearer token, silent refresh) characterised and pinned
to Quail Creek's tenant configuration
• Consent-scoped read access — user-consented credential model with revocation
handling, scoped read permissions, and data minimisation built in by default
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USE CASES & APPLICATIONS
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[1] SMALL-BUSINESS BOOKKEEPING AND LEDGER RECONCILIATION
• Pull categorized QCB transactions by date range and check number
• Auto-reconcile a small Oklahoma business's general ledger
• Match check-number-addressable transactions against paper records
• Reduce manual entry for sole proprietors and small business owners
[2] TREASURY AND MULTI-BANK CASH MANAGEMENT
• Track balances across Quail Creek Bank and other institutions in one view
• Use the external-transfer surface to move funds to a target balance
• Monitor sweep automation and balance rebalancing across accounts
• Build settlement tracking on top of per-movement transfer records
[3] MORTGAGE AND LENDING UNDERWRITING
• Ingest 18 months of eStatements as consented income and reserve evidence
• Pull live balances alongside statement history for a complete picture
• Satisfy underwriting documentation requirements without manual uploads
• Combine with transaction search to verify income pattern and regularity
[4] PERSONAL FINANCE AND CASH-FLOW FORECASTING
• Mirror Bill Pay scheduled payments into a cash-flow forecast
• Prevent future-dated payments from surprising the account holder
• Categorize spending from transaction history with check-number precision
• Surface upcoming payee payments alongside income projections
[5] ACCOUNT AGGREGATION AND OPEN-BANKING PLATFORMS
• Aggregate Quail Creek Bank data alongside other Oklahoma community banks
• Normalize QCB data across peer institutions (Arvest Go, BOK Financial,
MidFirst Bank, First Fidelity Bank, RCB Bank, Citizens Bank of Edmond)
• Deliver a unified multi-institution view for Oklahoma City metro customers
• Build on a user-consented route that does not wait on a federal rule landing
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BENEFITS & ADVANTAGES
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✓ Platform-documented auth — Apiture's OpenID Connect pattern is published and
consistent, so the token chain is characterized before capture begins; the
delivered client is stable rather than guessed at
✓ Tenant-pinned configuration — the slug qcbocok in the package name is one
tenant on a shared stack; the client is pinned so balance reads and transfers
never resolve into another institution's namespace
✓ All three transaction filters exposed — date, amount, and check number are
query parameters on the transaction-history call, not a flat activity dump
✓ Read-only by default, write paths available — the delivered client defaults
to safe read access; transfer and payee writes are opt-in with explicit consent
logging, because a wrong payee delete is destructive and not reversible
✓ Post-platform-release validation — the Apiture schema version is pinned at
build time and re-checked after platform releases; a UI refresh on the bank's
side does not silently break a sync
✓ Flexible engagement model — source-code delivery from $300 invoiced after the
build is in your hands, or hosted pay-per-call endpoints with nothing upfront;
one-to-two-week cycle
✓ Consent-first compliance posture — consent records, scoped read permissions,
revocation handling, and data minimization are built in; the integration is
re-pointable to a regulated channel when US Section 1033 rules settle
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SUBSCRIPTION PLANS
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OpenBanking Studio offers two engagement options for Quail Creek Bank Mobile data:
Source-code delivery
Starting at $300, invoiced after the build is working against a consenting
account. Includes the OpenAPI spec, auth-flow report, runnable Python and
Node.js source, and automated tests. Access, a test account, and any
compliance paperwork are arranged together — not required before work starts.
Pay-per-call hosted endpoints
The same balance, transaction-search, transfer, and Bill Pay surfaces
available as hosted endpoints, billed per call with no upfront cost and
no infrastructure to run on your side.
Both options carry a one-to-two-week delivery cycle.
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CONCLUSION
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Quail Creek Bank Mobile holds a structured, per-user dataset — balances, filterable
transaction history, transfer records, Bill Pay with future-dated visibility, and
18 months of eStatements — all behind a stable, platform-documented token flow.
Because the app runs on Apiture's Xpress Mobile stack with OpenID Connect and PKCE,
the authorized route is well-characterized and the delivered client is tenant-pinned
and durable across platform releases.
Whether the use case is bookkeeping reconciliation for a small Oklahoma business,
multi-institution treasury tracking, lending underwriting, or building a broader
account-aggregation product across Oklahoma City's community banks, the data is
reachable today under user consent — without waiting on a federal rule.
To scope the build for your project, send the app name and what you need from its
data. The full integration detail, delivery terms, and engagement options are at: