US lawmaker challenges Fed crypto master account

TLDR

A top US lawmaker is challenging the Federal Reserve over its decision to grant a crypto-affiliated bank a special "limited purpose" master account.

1. Rep. Maxine Waters has formally pressed the Kansas City Fed to justify giving Kraken Financial direct access to Fed payment rails via a restricted master account.
2. The challenge highlights unresolved rules on whether crypto-focused banks can plug directly into Fedwire and other core dollar infrastructure, especially after courts backed Fed discretion to deny access.
3. The Fed's written response and any broader "skinny" master account framework could shape how easily future crypto banks gain direct dollar settlement access.

Deep Dive

1. What Waters Is Challenging

Rep. Maxine Waters, the senior Democrat on the House Financial Services Committee, sent a letter to the Federal Reserve Bank of Kansas City questioning its legal authority to approve a master account for Payward Financial (Kraken Financial), a Wyoming crypto-focused bank.

The Kansas City Fed approved this "limited purpose" master account on 4 March 2026, giving Kraken Financial the first direct access to core Fed payment systems for a crypto exchange affiliate. Waters argues that neither the Federal Reserve Act nor the Fed's 2022 Account Access Guidelines mention a limited purpose category and asks whether the account reaches Fedwire, FedACH, or cash services and what caps or restrictions apply.

She also criticizes the regional Fed for citing confidentiality to withhold details, saying that secrecy around such a novel account raises transparency and accountability concerns for Congress and other applicants.

2. Why Master Accounts Matter For Crypto

A Fed master account is effectively a direct settlement account at the central bank, letting an institution clear payments on Fedwire and FedACH without relying on an intermediary correspondent bank.

For a crypto-aligned bank like Kraken Financial, this can reduce single-bank dependence, lower settlement risk, and potentially make on and off ramp flows cheaper and faster for institutional and large retail users.

The move is controversial because another Wyoming SPDI, Custodia Bank, was denied a similar account, and a 2024 federal court ruling affirmed that the Fed has broad discretion to deny access to nontraditional banks. That history, plus the experimental one-year pilot design described by Fed officials, makes many in the industry worry the Kraken approval may be a one-off, not a clear path others can follow.

3. What To Watch Next

Waters requested a written explanation from the Kansas City Fed by 10 April, including the legal basis for the limited purpose account, its exact service scope, and any coordination with the Fed Board.

Observers expect the response to reference a forthcoming narrower master account framework for novel institutions, sometimes described as a "skinny" model that allows settlement access while withholding perks like interest on reserves.

If the Fed signals that the Kraken pilot is limited and discretionary, other crypto banks may face a long, uncertain road to similar access. If instead the Fed outlines general criteria that other firms can meet, it could mark a significant structural opening for crypto-native financial institutions in the US dollar system.

Conclusion

A single master account for Kraken Financial has become a flash point in the broader fight over how deeply crypto firms can plug into the US banking core.

How the Fed defends this decision, and whether it turns a one-off pilot into a reproducible framework, will do a lot to determine whether crypto banking in the US evolves as a tightly controlled exception or a scalable, rule-based channel into Fed payment infrastructure.