Protocol analysis and Open Data integration for Liberty National Bank mobile banking: transaction export, statement API, balance sync—compliant delivery
LNB Paris is the personal financial app from Liberty National Bank in Paris, Texas. It gives customers 24/7 access to accounts with transaction tagging, notes, receipt and check photos, balance alerts, payments, transfers, mobile check deposit, debit card controls, and monthly statements. In 2024 the app was released (package com.lnbparis.grip) and has received regular updates—Android 3.22.0 and iOS 3.19.0 as of 2025—with high store ratings. We deliver protocol analysis and usable API implementations so you can integrate balances, transaction history, statements, and payment flows in line with OpenBanking and US consumer data rights, with user consent and compliance.
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From protocol analysis and authorized data flows, the following data types can be exposed via APIs we deliver. Granularity and use cases are indicative; actual scope depends on app capabilities and client consent.
| Data type | Source (screen / feature) | Granularity | Typical use |
|---|---|---|---|
| Account balances | Account summary, dashboard | Per account, per refresh | Cash-flow dashboards, aggregation, OpenBanking |
| Transaction history | Transaction list, tags, notes, receipts | Per transaction, date range | Reconciliation, accounting sync, compliance |
| Statement data | View and save monthly statements | Per account, per month | Reporting, compliance, audit |
| Balance alerts | Alerts management | Per alert, per user | Compliance, notification preferences |
| Payment and transfer metadata | Payments, transfers between accounts | Per payment/transfer | Audit, payment reconciliation |
| Mobile deposit status | Check deposit (front/back photo) | Per deposit, status | Audit trail, deposit reconciliation |
| Card state | Debit card on/off | Per card | Security and fraud workflows |
| Branch/ATM locations | Find branches and ATMs | Per location | Location services, routing |
A small business or accountant needs to sync LNB Paris checking and savings transactions into QuickBooks, Xero, or an internal ledger. Our delivered API provides transaction-history endpoints with date range and account filters, including tags and notes. Data maps to OpenBanking: structured transaction records (amount, date, description, balance, user metadata). Flow: LNB Paris app or authorized client → auth → API → export to accounting software; duplicate detection and categorization can be applied downstream.
A user wants to see LNB Paris accounts alongside other banks in one dashboard. We deliver a consent-based API that returns balances and transaction lists. This fits OpenBanking and CFPB Section 1033–style data portability: multiple sources in one view. Fields: accounts[], balances[], transactions[] with standard identifiers. In the US community bank space, tools like Plaid and Yodlee often connect to such institutions; our protocol implementation can complement or bypass aggregator dependency where appropriate.
An auditor or compliance team needs exportable transaction and deposit records for a given period. Our implementation can expose statement and deposit-status endpoints with filters (date range, account). Response includes amounts, dates, and status—aligned with GLBA and CFPB expectations for consumer data handling and audit trails.
LNB Paris allows tags, notes, and photos of receipts and checks. We can design an API that surfaces this metadata (and optionally receipt image references) for expense management and reimbursement workflows. Use: categorized spending reports, audit-ready receipt linkage, and integration with expense tools.
A treasurer or finance team aggregates balances and transaction summaries from LNB Paris for cash-flow visibility. Data flow: authorized API → ingestion layer → storage → dashboard; compliant with consent and minimal data retention. Supports CSV/JSON export for internal reporting.
// Example: fetch transaction statement (pseudo)
GET /api/v1/lnbparis/transactions
Authorization: Bearer <ACCESS_TOKEN>
Query: account_id, from_date, to_date, limit, offset
Response: {
"transactions": [
{ "id": "tx1", "date": "2025-03-10", "amount": -50.00,
"description": "POS DEBIT", "tags": ["office"],
"balance": 1250.00 }
],
"total_count": 42
}
// Example: list accounts and balances (pseudo)
GET /api/v1/lnbparis/accounts
Authorization: Bearer <ACCESS_TOKEN>
Response: {
"accounts": [
{ "id": "chk1", "type": "checking", "name": "Primary",
"balance": 1250.00, "currency": "USD" }
]
}
// Login / token refresh (pseudo)
POST /api/v1/auth/refresh
Content-Type: application/json
{ "refresh_token": "<REFRESH_TOKEN>" }
Response 200: { "access_token": "...", "expires_in": 3600 }
Response 401: { "error": "invalid_grant", "message": "Token expired" }
Response 429: { "error": "rate_limit", "retry_after": 60 }
We work from client authorization or public/authorized APIs and follow privacy and local regulations. For US community bank mobile banking such as LNB Paris (Liberty National Bank), we align with the Gramm–Leach–Bliley Act (GLBA) for financial privacy and safeguarding, and the Consumer Financial Protection Bureau (CFPB) Personal Financial Data Rights rule (Section 1033, finalized October 2024), which promotes secure, standardized API-based data access for consumers and authorized third parties. All implementations we deliver can support consent records, minimal data retention, and secure transmission. US banks are not subject to European PSD2; GLBA and CFPB form the primary US framework.
A typical pipeline we design: (1) Client app (LNB Paris or your front-end) — user consents and triggers requests. (2) Ingestion / API layer — our delivered service authenticates (e.g. token or session), validates scope, and queries the data source. (3) Storage or cache (optional) — for aggregation or reporting. (4) Output — JSON/API to your accounting software, dashboard, or analytics. Logs and consent are retained for audit.
LNB Paris targets B2C customers of Liberty National Bank in Paris, Texas (Lamar Avenue and North Collegiate branch). The app serves individuals and small businesses in the region with 24/7 mobile banking. It is available on Android (com.lnbparis.grip) and iOS, with high store ratings (e.g. 4.9 on Android). The app is built on a Grip-style mobile banking platform common among community banks. In the same ecosystem, Plaid, Yodlee, and Banno (Grip) provide aggregation and PFM capabilities; our protocol analysis and API delivery can complement these or enable direct integration where aggregator coverage is limited.
We are a technical studio focused on app interface and authorized API integration. We deliver protocol analysis, Open Data integration, third-party integration, and automated scripting plus API documentation. Services start at $300; we can deliver first and you pay when satisfied.
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LNB Paris is your personal financial advocate from Liberty National Bank. It is fast, secure and makes life easier by empowering you with the tools you need to manage your finances.
Here’s what you can do with LNB Paris: Keep your transactions organized by allowing you to add tags, notes and photos of receipts and checks. Set up alerts so you know when your balance drops below a certain amount. Make payments, whether you’re paying a company or a friend. Transfer money between your accounts. Deposit checks in a snap by taking a picture of the front and back. Turn off your debit card if you’ve misplaced it. View and save your monthly statements. Find branches and ATMs near you.