How an integrator reaches MVB Bank Mobile's accounts

MVB Bank, Inc. — the FDIC-insured Fairmont, West Virginia institution behind this app (FDIC certificate 34603, per the FDIC BankFind register) — runs both a community-bank retail layer and the deposit infrastructure behind several of the largest fintech and gaming brands in the United States. Per MVB Financial Corp's own investor materials, the parent (NASDAQ: MVBF) is a roughly $3.5 billion asset bank with a Banking-as-a-Service line that has talked publicly about its position in online gaming and a Credit Karma deposit relationship. For an integrator that does not change the shape of the work, but it does mean two distinct data worlds live under one bank charter, and only one of them is what this app touches.

The app this brief covers is the retail-side surface: com.mvbbank.grip on Android (and the iOS counterpart), used by individual depositors and small-business clients who logged in via the same credentials they use on MVB's Internet Banking, as the Play Store description states. Our scope is getting that customer-visible data out, into another system, on the account holder's behalf, lawfully and durably.

The recommendation in one line: build on a member-authorized session against the retail app's existing surfaces, treat statements as a separate batch surface, and skip the BaaS-side data entirely — it is not what the app exposes and belongs to a different conversation with the program manager. The rest of the brief explains why and what ships.

What the app holds

The Play Store text and the in-app screenshots agree on what is server-side and what is not. Below is the map an integrator actually works against, named the way the app names things where possible.

Routes that work here

1. Authorized interface integration on the member's session

The account holder gives us consent to act on their own session against the same endpoints the mobile app uses. We perform protocol analysis on those endpoints, document the auth flow (login, two-factor challenge per MVB's published 2FA notice, session cookie / token chain), then ship code that reads balances, transactions, statements and card state, plus initiates transfers where in scope. This is the route we recommend for MVB and the one most of the deliverable centres on. Effort is moderate; durability is good as long as we sign up to re-validate against new app versions, which we do.

2. User-consented credential integration through a regulated aggregator

If you already use a US aggregator — Plaid, MX, Finicity — for the bulk of your bank coverage, MVB is reachable through that lane too, again under the consumer's permission. We use this when the build needs to slot into existing aggregator-shaped plumbing rather than stand alone, and we wire the fallback so a single bank's aggregator outage does not strand your customer.

3. Native exports as a batch fallback

For statement-driven workflows (lending, accounting close) the in-app monthly PDF export is enough on its own. We package that as a scheduled, member-triggered pull, parse the PDFs, and emit normalized records. Less rich than route 1, but very stable.

For most fintech use cases the live ledger comes from route 1 and the monthly statement archive comes from route 3, used together. Route 2 only enters the picture when the customer's wider bank coverage already lives inside an aggregator and adding MVB through that same lane keeps the rest of the architecture coherent.

The package you receive

• An OpenAPI 3 specification covering the endpoints we actually use against MVB — auth, account list, balance, transaction page, statement fetch, transfer initiation, card-control toggle.
• A short protocol & auth-flow report: how login, the second factor (MVB's published 2FA challenge), session refresh and CSRF-style guards behave in practice.
• Runnable source in Python and Node.js for those endpoints, with a small fixture set captured during the build from a consenting account.
• Automated tests, including a contract test that fails loudly when MVB changes a response shape, so version drift gets caught at CI, not at 2 a.m. in production.
• Interface documentation aimed at the engineer who picks the integration up next: known quirks, retry behaviour, what to do when the second factor times out.
• Compliance notes: data-minimization defaults, consent-record schema, retention recommendation, suggested logging fields for your audit trail.

An illustrative call

The shape below is illustrative — field names and the auth chain are confirmed during the build against a consenting MVB account, since US banking apps in this segment vary in detail and MVB has shipped multiple app revisions (3.13.1 in mid-2024 and 3.33.0 more recently, per the App Store listing).

# MVB Bank Mobile — pull balances under a member session (illustrative)
import httpx

s = httpx.Client(http2=True, headers={
    "User-Agent": "MVBBankMobile/3.33.0 (consented-integration; build by OpenBanking Studio)",
    "X-Device-Id": DEVICE_ID,         # bound to the member during onboarding
    "Accept": "application/json",
})

# Step 1 — login + 2FA, confirmed during the build
auth = s.post(BASE + "/auth/session", json={
    "username": MEMBER_USERNAME,
    "passcode": MEMBER_PASSCODE,
}).json()
challenge = s.post(BASE + "/auth/2fa", json={
    "session": auth["session"],
    "code": ONE_TIME_CODE,             # from the channel MVB sends to
}).json()
s.cookies.set("MVB_SESSION", challenge["session"])
s.headers["X-CSRF"] = challenge["csrf"]

# Step 2 — list accounts and read balances
accounts = s.get(BASE + "/accounts").json()["accounts"]
for a in accounts:
    bal = s.get(BASE + f"/accounts/{a['id']}/balance").json()
    yield {
        "account_id": a["id"],
        "type": a["type"],             # "DDA", "SAV", "LOAN", ...
        "balance_available": bal["available"],
        "balance_current": bal["current"],
        "as_of": bal["asOf"],
    }

# Step 3 — statements come from a separate endpoint, monthly PDFs
# handled in a different worker; see statement_fetcher.py

Keeping this lawful for MVB members

For an MVB customer who wants their data shared with a third party, the dependable basis today is the account holder's own written authorization — they consent, we act on their session, every read is bound to a recorded permission. That is what holds up under US bank-customer privacy expectations and Gramm-Leach-Bliley-style data-handling rules that already apply to MVB as an FDIC-supervised state-chartered bank.

The CFPB's Personal Financial Data Rights rule (12 CFR Part 1033), which would have introduced a federal data-portability obligation on issuers including MVB, is not currently in force: a federal court has enjoined enforcement and the CFPB is taking comment under an Advance Notice of Proposed Rulemaking on a rewrite, per the agency's own reconsideration page. We build to the member's authorization, which is the rule that actually applies, and design the data schema so a future federal mandate — if and when it lands, in whatever final shape — can be slotted in without an architectural change. On our side: NDA where the engagement calls for one, data-minimized reads (we do not pull what the use case does not need), consent records kept with revocation timestamps, and logs of every call against the member's session for the customer's own audit.

Engineering notes we account for

• The retail app and the BaaS pipes are not the same surface. We scope our integration strictly to com.mvbbank.grip retail data and decline to mix it with anything sitting on the program-manager side of MVB Financial's fintech-services book (DraftKings, FanDuel, Credit Karma deposit flows and the rest, per MVBF filings) — that data is governed by separate contracts and we do not reach across.
• MVB enforces 2FA on digital banking per its own customer notice, and the second factor is delivered to a channel registered to the member. We onboard the member through that 2FA the first time, persist a device binding the way the app does, and only then start a long-running consent — that keeps the integration lined up with how the institution expects authenticated traffic to look, not how it does not.
• App versions move quickly enough to notice. We saw 3.13.1 in mid-2024 and 3.33.0 since, per the App Store listing, and the auth and response shapes shift with major version bumps. We schedule re-testing against each MVB release as part of the engagement, so the integration does not silently drift after a Tuesday build.
• The transaction ledger is more useful here than at most community banks because the app stores user-added tags, notes and receipt photos server-side. We preserve those attachments through the normalized export — they are most of the reason a customer would integrate at all, and dropping them turns the export into something the customer already has from any aggregator.
• Mobile check deposit submissions are imaged on the device and posted to the bank. We treat the deposit-status surface as read-only and never attempt to inject a deposit on the member's behalf — the consent model does not extend that far and the institution's risk posture does not invite it.

How the engagement runs

Delivery on a build of this shape lands inside one to two weeks. You give us the app name (MVB Bank Mobile) and what you actually need from its data; we handle the rest — the consenting account, the device binding through 2FA, the protocol mapping, the source, the tests, the spec, the docs. Source-code delivery starts at $300: you receive the runnable API source and the interface documentation, and you pay after the delivery once you are satisfied. If a hosted lane fits better, the alternative is pay-per-call hosted API — we host the integration on our side, you call our endpoints, and you only pay for the calls you make, with no upfront fee. To talk specifics for an MVB build, the contact route is /contact.html.

Sources and review notes

This brief was put together from the app's own Play Store description for com.mvbbank.grip, the FDIC BankFind public record for MVB Bank, Inc. (cert. 34603), MVB Financial Corp's investor materials on its fintech and BaaS book, and the CFPB's published status pages on the §1033 reconsideration. Specifically:

• MVB Bank Mobile on Google Play (com.mvbbank.grip)
• FDIC BankFind — MVB Bank, Inc. (cert. 34603)
• CFPB — Personal Financial Data Rights Reconsideration
• Cozen O'Connor — §1033 compliance dates stayed (2026 alert)

Reviewed 2026-05-24 by the OpenBanking Studio integration desk.

Adjacent US bank apps integrators pair with

These are the apps that tend to show up in the same buyer's coverage list as MVB Bank Mobile — community and regional US institutions, plus the digital-bank apps that often sit alongside them. App names are plain text on this page; no implied endorsement.

• Citizens Bank of West Virginia Mobile — another small WV-chartered community bank app; same shape of authenticated account data and statements.
• Middletown Valley Bank Mobile — Maryland community bank often pulled together with MVB in regional aggregator coverage; similar retail surfaces.
• Community Bank N.A. Mobile — PA/WV regional bank; same retail data domains but a larger branch footprint.
• Truist Mobile — one of the larger US southeastern banks; more program surfaces, same fundamental customer-visible ledger.
• First Citizens Bank Mobile — large US regional with a similar retail-banking app structure.
• Huntington Mobile — Ohio-headquartered super-regional; commonly integrated alongside smaller WV/PA banks.
• Ally Mobile — digital-first US bank that often sits next to a community-bank account in a customer's coverage.
• Varo Bank — a direct US digital bank (not a fintech sitting on a sponsor) commonly paired with community-bank accounts in personal-finance use cases.
• Chime — a US fintech that partners with two banks; included here because it is one of the most-asked-for integrations alongside any community-bank build.

Questions integrators usually ask first

Which MVB Bank Mobile surfaces are worth wiring up first?

The high-value ones are the per-account ledger (balances plus transactions with the user-added tags, notes and receipt photos that the app stores server-side) and the monthly statement archive. Card controls and mobile-deposit history are useful but secondary. Branch and ATM lookups are public and rarely worth wiring.

MVB also runs Banking-as-a-Service for fintechs like Credit Karma and DraftKings. Is that the same data path?

No, and the brief is careful not to conflate them. The com.mvbbank.grip app is the retail-customer surface for MVB Bank's own depositors. The BaaS pipes that sit behind Credit Karma, FanDuel and similar partners are MVB Financial Corp's separate business line and go through different program manager contracts.

What does §1033 status mean for an MVB integration we ship this quarter?

In practice, very little. The federal Personal Financial Data Rights rule has been enjoined and the CFPB is taking comment on a rewrite, so there is no in-force federal obligation on MVB to expose customer data on demand. We build on the member's own authorization to act on their session, which is what works today and would still work if the rule comes back in altered form.

Does the build break when MVB pushes a new app version?

App versions move (3.13.1 in mid-2024, 3.33.0 more recently, per the App Store listing) and the auth layer or response shapes shift with them. We map that ahead of time and quote ongoing re-validation as part of the engagement so the integration does not silently drift.