• Zen.com reports Pay by Bank through Mastercard Open Finance for merchant acceptance and digital wallet top-ups, as covered by Finextra.
• The nine target markets are Germany, Austria, Spain, Belgium, the Netherlands, Italy, Portugal, Ireland and Lithuania.
• The summary discloses no pricing, conversion or volume figures, so the merchant-economics case is unproven.
• Mastercard's documentation says it handles bank communication and Strong Customer Authentication, which lets a merchant or wallet avoid building bank-by-bank connections.
• Watch for published take-rates, authorization-equivalent success rates and settlement timing before treating this as a card substitute.

Zen.com has enabled Pay by Bank through Mastercard Open Finance, according to Finextra, covering merchant payment acceptance and digital wallet top-ups in nine target markets. That is a distribution milestone. It is not yet evidence that bank-initiated payments are cheaper or more reliable for merchants than cards, because the summary of the announcement contains no pricing, conversion or volume data.

What Zen.com says it has switched on

Finextra reports that Zen.com now supports Pay by Bank for two uses: accepting payments from customers on behalf of merchants, and topping up digital wallets. The nine target markets are Germany, Austria, Spain, Belgium, the Netherlands, Italy, Portugal, Ireland and Lithuania. The reporting describes availability across those markets as targeted, and it does not say whether every market is live for both uses.

Mastercard supplies the bank connectivity

Mastercard's developer documentation describes its Open Finance top-up service as funding wallets and other stored-value accounts directly from a bank account through account-to-account payments. Mastercard says it handles communication with the user's bank, including Strong Customer Authentication. For a fintech like Zen.com, that means one integration stands in for many bank connections, with Mastercard sitting in the flow as the aggregator.

The merchant economics remain undisclosed

Pay by Bank is attractive to merchants chiefly because it can bypass card interchange and scheme fees. Neither source reviewed states Zen.com's fee for the service, the success rate of bank-authenticated payments, or settlement timing. Without those three numbers, a merchant cannot compare it against card acceptance. Any claim that it undercuts cards is, on this evidence, an expectation rather than a result.

Wallet top-ups are the likelier early use

Top-ups are a natural first use because the wallet operator controls the checkout and gains most from avoiding card costs on funding. Mastercard's documentation lists wallet funding, investment and savings accounts, and prepaid accounts as target uses. Retail checkout is harder, since shoppers must be willing to leave the merchant page for a bank login, and the announcement offers no data on how often they complete that step.

What to watch next

The practical test is published data: take-rates relative to card pricing, completion rates for bank-authenticated payments, and how quickly funds settle to the merchant. Operators evaluating Pay by Bank should request those figures from providers in writing and run it alongside cards on a limited share of volume before changing checkout defaults. Until Zen.com or Mastercard release such figures, treat the launch as reach, not proven savings.