Upstate Federal Credit Union API integration (OpenBanking & OpenData)

1. PFM / budgeting app sync

A regional personal-finance app needs nightly UFCU balance and transaction pulls for its members. We expose GET /v1/ufcu/accounts and GET /v1/ufcu/transactions?since=... in FDX-aligned JSON, mediated by a member-authorized refresh token. Transactions stream into the PFM's categorization engine with stable transaction_id and posted_at fields so re-syncs stay idempotent.

2. Small-business bookkeeping reconciliation

A small business that holds checking and a line of credit at UFCU pushes activity into QuickBooks-style ledgers. The integration polls Bill Pay and Zelle outflows, matches them to invoice IDs, and posts entries with the original memo field preserved. Statement PDFs are archived per CFPB 24-month retention guidance from the Section 1033 framework.

3. Lending decisioning & income verification

An auto-loan partner pulls 90 days of UFCU deposit history to evaluate income stability without screen scraping. The endpoint follows the patterns used by Finicity/Mastercard Open Banking for cash-flow underwriting, returning aggregated payroll deposits with employer hints alongside raw transaction rows.

4. Card-control + fraud workflow

A risk team subscribes to a webhook driven by the "My Cards" surface so a frozen card or velocity-rule breach raises a case in their SIEM within seconds. The payload carries the same fields a member sees in-app, plus an auth_score field we compute from the recent transaction stream.

5. Cross-aggregator unification

For clients that already consume Plaid, Akoya, or Yodlee for other institutions, we expose UFCU under the same shape so downstream code does not branch. This is particularly relevant where UFCU does not yet appear in a given aggregator's coverage and the partner needs immediate parity.

Login & session bootstrap

POST /v1/ufcu/auth/login
Content-Type: application/json

{
  "member_number": "<encrypted>",
  "password": "<encrypted>",
  "device_fingerprint": "fp_8f3a...",
  "mfa": { "method": "biometric|otp", "token": "..." }
}

200 OK
{
  "access_token": "eyJhbGciOi...",
  "refresh_token": "rt_3c91...",
  "expires_in": 1800,
  "scopes": ["accounts.read","transactions.read","transfers.write"]
}

Statement / transaction query

GET /v1/ufcu/accounts/{account_id}/transactions
  ?from=2026-04-01&to=2026-04-30
  &page_size=100&cursor=...
Authorization: Bearer <ACCESS_TOKEN>

200 OK
{
  "account_id": "shr_001",
  "currency": "USD",
  "transactions": [
    {
      "id": "txn_a1b2",
      "posted_at": "2026-04-28T14:02:11Z",
      "amount": -42.18,
      "type": "card_purchase",
      "merchant": "PUBLIX #1374",
      "status": "posted",
      "category_hint": "groceries"
    }
  ],
  "next_cursor": "eyJvZmZzZXQiOjEwMH0"
}

Zelle / RDC webhook

POST https://your-app.example.com/webhooks/ufcu
X-UFCU-Signature: t=1714312800,v1=...

{
  "event": "zelle.transfer.completed",
  "transfer_id": "zlt_882f",
  "amount": 120.00,
  "counterparty": "alex@example.com",
  "completed_at": "2026-04-28T18:11:09Z"
}

# Error envelope (consistent across endpoints)
{
  "error": {
    "code": "consent_revoked",
    "message": "Member revoked data sharing on 2026-04-27",
    "retryable": false
  }
}

Regulatory alignment

UFCU is a federally-insured U.S. credit union, which puts integrations squarely in the scope of CFPB rulemaking. The CFPB Personal Financial Data Rights rule (Section 1033 of the Dodd-Frank Act) became effective January 17, 2025, and the CFPB reopened it for an Advance Notice of Proposed Rulemaking on August 22, 2025. We build to the FDX data shapes the rule references, log every member-consent decision, and keep retention windows compatible with the 24-month covered-data definition.

Operational controls

• Member-authorized access only — no screen scraping where an API path exists
• Per-request consent IDs surfaced in every audit log entry
• NCUA-aware data handling for share, share-draft, and loan products
• Tokens stored encrypted at rest; refresh rotation on every use
• Optional FDX-aligned payloads for portability across aggregators

Deliverables checklist

• OpenAPI 3.1 specification for the UFCU surface
• Protocol & auth-flow report (login, MFA, token refresh, error envelopes)
• Runnable Python + Node.js source for login, balances, transactions, transfers
• Webhook handlers for Zelle, RDC, and card-control events
• Integration tests against a sandbox member with mocked clearing
• Consent + audit-log design aligned with CFPB Section 1033

Engagement workflow

1. Scope confirmation — which UFCU surfaces and which downstream system
2. Protocol analysis & API design (2–5 business days)
3. Build and internal validation (3–8 business days)
4. Docs, samples, and test cases (1–2 business days)
5. First delivery typically lands in 5–15 business days; complex reviews extend timelines

About our studio

OpenFinance Lab is an independent technical services studio focused on mobile-app protocol analysis and authorized API integration. The team combines engineers from U.S. and EU banks, payments, and protocol-analysis backgrounds, and we have shipped credit-union, neobank, and brokerage integrations on both Android and iOS. Our work is anchored in two patterns: member-authorized access via standards such as FDX, and clean, well-typed source code that a customer engineering team can own from day one.

• Payments, digital banking, lending, and accounting integrations
• Custom Python / Node.js / Go SDKs with end-to-end test harnesses
• Source-code delivery from $300 — full source plus documentation, pay after delivery upon satisfaction
• Pay-per-call hosted API — access our endpoints, pay only for successful calls, no upfront cost

Contact

For quotes or to submit your UFCU integration requirements (data scopes, target ledger, expected call volume), please open our contact page:

Contact page