GTE Mobile API integration & OpenBanking data export

Account & transaction history API

Pulls posted and pending transactions per share/checking/savings account with date ranges, paging and merchant/category filters. Concrete use: nightly reconciliation against an ERP ledger and month-end close.

Balance & loan position sync

Returns available and current balances plus credit card, home-loan and auto-loan balances, payment due dates and APRs. Concrete use: a debt-payoff dashboard or a cash-flow forecast that refreshes every morning.

Card control endpoints

Mirrors the in-app card on/off switch and alert preferences (per-merchant category, per-amount, location). Concrete use: a fraud-response bot that disables a card the moment an anomaly score crosses a threshold.

Payments & transfers feed

Captures Zelle / P2P sends and receives, scheduled bill payments and internal transfers with status transitions. Concrete use: matching outgoing payments to vendor invoices in an accounts-payable workflow.

Statement export service

Generates monthly statements as PDF plus a normalized JSON/CSV mirror of every line. Concrete use: feeding a loan application or a tax-prep tool the last 12 months of statements without manual uploads.

Rewards & deposit records

Reads Go Points balances, earn events and redemption history, plus mobile check-deposit records and their clearing status. Concrete use: a loyalty analytics report or an audit trail for remote deposit capture.

1. Accounting sync for a small business member

Context: a member runs payroll and vendor payments through a GTE checking account and wants it in their bookkeeping app. Data/API: the transaction-history endpoint (GET /accounts/{id}/transactions) plus the statement export. OpenFinance mapping: the member authorizes read-only access once; the connector pulls deltas nightly and posts them as journal entries — the same consumer-permissioned data sharing CFPB Section 1033 is designed to standardize.

2. Real-time fraud response

Context: a risk engine flags a suspicious card-not-present charge. Data/API: the transaction webhook for the alert, then POST /cards/{id}/state with {"enabled": false} to mirror the in-app card switch. OpenBanking mapping: action-level scopes, not just read scopes — the integration both observes and reacts, with every state change written to an audit log.

3. Lending pre-qualification

Context: an auto-loan or mortgage flow needs 90 days of verified income and balances. Data/API: statement export plus balance and loan-position endpoints. OpenFinance mapping: the applicant grants time-boxed consent; the underwriter receives FDX-style account, transaction and statement resources instead of uploaded PDFs, cutting manual review.

4. Personal finance & budgeting dashboard

Context: a PFM app wants to show GTE balances next to other institutions. Data/API: balances, categorized transactions and Go Points. OpenData mapping: a normalized aggregation layer exposes GTE the same way it exposes other banks, so the app treats credit-union data as a first-class source.

5. Treasury automation for a community organization

Context: a nonprofit with several GTE accounts wants to sweep balances and reconcile donations. Data/API: multi-account balance sync, internal transfer endpoint and the payments feed. OpenFinance mapping: scheduled, consent-backed transfers plus a daily reconciliation report — payment initiation and account information combined under one authorization.

1) Authorize & obtain a session token

POST /api/v1/gte/auth/token
Content-Type: application/json

{
  "grant_type": "member_authorization",
  "member_ref": "AUTH_CODE_FROM_CONSENT",
  "device_id": "client-app-01",
  "scopes": ["accounts:read", "transactions:read",
             "statements:read", "cards:write"]
}

200 OK
{
  "access_token": "eyJhbGci...",
  "refresh_token": "rt_8f2c...",
  "token_type": "Bearer",
  "expires_in": 900,
  "consent_id": "cns_91a2"
}

2) Fetch a statement (paged)

GET /api/v1/gte/accounts/SHARE-0042/statements
    ?from=2026-04-01&to=2026-04-30&format=json&page=1
Authorization: Bearer <ACCESS_TOKEN>

200 OK
{
  "account_id": "SHARE-0042",
  "period": {"from": "2026-04-01", "to": "2026-04-30"},
  "opening_balance": 1840.55,
  "closing_balance": 2105.12,
  "transactions": [
    {"id":"t_771","date":"2026-04-03","desc":"ZELLE TO J. DOE",
     "amount":-120.00,"status":"posted","balance":1720.55},
    {"id":"t_772","date":"2026-04-05","desc":"PAYROLL ACME LLC",
     "amount":2450.00,"status":"posted","balance":4170.55}
  ],
  "page": 1, "pages": 2,
  "pdf_url": "https://.../statements/SHARE-0042/2026-04.pdf"
}

3) Toggle a card on/off

POST /api/v1/gte/cards/CRD-7781/state
Authorization: Bearer <ACCESS_TOKEN>
Content-Type: application/json

{ "enabled": false, "reason": "fraud_review" }

200 OK
{ "card_id": "CRD-7781", "enabled": false,
  "updated_at": "2026-05-12T14:08:22Z" }

# Error handling
409 Conflict
{ "error": "card_locked_by_issuer",
  "retry_after": 0,
  "message": "Card is already blocked by GTE risk ops." }

4) Transaction / alert webhook

POST https://your-app.example/webhooks/gte
X-OFL-Signature: sha256=4b9d...
Content-Type: application/json

{
  "event": "transaction.posted",
  "consent_id": "cns_91a2",
  "account_id": "CHK-0042",
  "data": {
    "id": "t_905", "amount": -64.20,
    "merchant": "Publix #1123", "mcc": "5411",
    "status": "posted", "ts": "2026-05-12T13:51:09Z"
  }
}

# Respond 2xx within 5s or we retry with backoff.

Compliance & privacy

GTE Financial is a US credit union regulated by the National Credit Union Administration and bound by the Gramm-Leach-Bliley Act privacy and safeguards rules and Regulation E for electronic transfers. Consumer-permissioned data sharing in the US is moving onto a formal footing: the CFPB finalized its Personal Financial Data Rights rule under Dodd-Frank Section 1033 in October 2024, with phased compliance dates running from April 2026 onward, and recognized the Financial Data Exchange (FDX) as a standard-setting body in early 2025 — the FDX API already moves 94+ million consumer records, roughly three-quarters of the addressable market. We track the rule's ongoing reconsideration and litigation closely; see the CFPB's Personal Financial Data Rights materials for the current status.

Our delivery follows that direction: we work only under member authorization or documented, authorized interfaces, keep granular consent and access logs, minimize the fields we touch, and sign NDAs and data-processing terms where required. We do not bypass authentication controls and we do not retain credentials beyond what an integration strictly needs.

Market positioning & user profile

GTE Mobile serves GTE Financial's membership — primarily consumers and small businesses in the Tampa Bay region and across Florida, with a digital footprint that reaches members nationwide through 30,000+ surcharge-free ATMs. It is squarely a retail and small-business banking app (B2C and SMB), available on both Android and iOS, competing with other Florida and national credit-union apps on instant card issuance, Zelle, mobile deposit and rewards. Integration buyers are typically fintechs, bookkeeping and lending platforms, and the credit union's own partners who want permissioned access to member transaction, balance and statement data.

Deliverables checklist

• API specification (OpenAPI / Swagger) for the agreed endpoints
• Protocol & auth-flow report (token exchange, refresh, session/cookie chain)
• Runnable source for login, transactions, statements and card-state APIs (Python / Node.js)
• Webhook receiver sample with signature verification
• Automated tests, Postman collection and API documentation
• Compliance guidance (consent capture, retention, GLBA/Reg E notes, FDX alignment)

Engagement workflow

1. Scope confirmation: which data and actions (login, transactions, statements, card controls, payments)
2. Protocol analysis & API design (2–5 business days, complexity-dependent)
3. Build and internal validation (3–8 business days)
4. Docs, samples and test cases (1–2 business days)
5. First delivery typically 5–15 business days; third-party approvals may extend timelines

Engagement models

• Source-code delivery from $300 — runnable API source plus full documentation; pay after delivery upon satisfaction.
• Pay-per-call API billing — use our hosted endpoints and pay only for the calls you make, no upfront fee; suited to teams that prefer usage-based pricing.
• Mix and match: prototype on the hosted API, then take source code in-house when you are ready.

About us

We are an independent studio focused on fintech and open-data API integration. Our team includes engineers who have worked on bank cores, payment gateways, mobile app protocol analysis and cloud platforms. We know what NCUA, GLBA and the emerging CFPB 1033 / FDX landscape expect of consumer financial data sharing, and we ship end-to-end interfaces under those constraints.

• Retail banking, digital lending, card programs and payments
• API gateways, webhook infrastructure and security reviews
• Python / Node.js / Go SDKs and automated test harnesses
• Full pipeline: protocol analysis → build → validation → compliance handoff
• Source-code delivery from $300; pay-per-call hosted API also available

Contact

For a quote, or to submit your target app and requirements, open our contact page:

Contact page

Tell us which GTE Mobile data and actions you need — transactions, balances, statements, card controls, Zelle/bill-pay records or Go Points — and whether you prefer source code or the hosted API.

What information do you need to start a GTE Mobile integration?

The target app name (GTE Mobile, org.gtefinancial.mobile), the specific data or actions you need — transaction history, balance sync, card on/off, Go Points, bill pay or statement export — and any authorized member credentials, sandbox access, or partnership documentation you can provide.

How long does delivery take?

A first API drop with documentation usually takes 5–15 business days. Login and statement endpoints land first; webhook callbacks, card-control flows and multi-account reconciliation may take longer depending on review and third-party approvals.

How do you handle compliance and member privacy?

We work only under member authorization or documented, authorized APIs, aligned with FDX data-sharing standards, CFPB Section 1033 personal financial data rights, the Gramm-Leach-Bliley Act privacy rules and NCUA guidance. We keep consent records, minimize fields and support NDAs.

Do you deliver source code or a hosted API?

Both. Source-code delivery starts at $300 — you receive runnable Python or Node.js code plus documentation and test cases, and pay after delivery once satisfied. Alternatively, use our hosted endpoints and pay per call with no upfront fee.