The pitch behind Kraken's Flexline product is simple: if you hold cryptocurrency and need cash, you should be able to borrow against it at a known cost without selling, in the same way that a business owner might draw on a line of credit secured against property or equipment.
The concept is not new. Crypto-collateralised lending was one of the fastest-growing segments of the digital asset industry before it became one of its most spectacular failures.
Celsius, BlockFi and Voyager all offered similar propositions, allowing users to deposit crypto and borrow against it, before collapsing in 2022 when falling token prices triggered cascading liquidations, froze withdrawals and left millions of creditors with billions of dollars in losses.
Kraken's argument, laid out in a detailed blog post published on Monday, is that the problem was not the product category but the way it was built.
Celsius rehypothecated client deposits, lending them out again to generate yield in a chain of leverage that unwound catastrophically when markets turned. BlockFi had concentrated counterparty exposure to Three Arrows Capital. Neither operated with transparent reserves nor segregated client assets.
Flexline is structured differently. Collateral is held in segregated wallets and included in Kraken's Proof of Reserves attestations, which the exchange says verify client assets on a one-to-one basis.
Rates are fixed at between 10% and 25% annually, meaning borrowers know their cost of capital from inception. Terms run from two days to two years. Funds can be withdrawn off-platform to a bank account, a feature that distinguishes the product from margin trading, which keeps borrowed capital on the exchange.
The blog post frames the product around three user profiles: long-term holders who need liquidity without triggering a taxable sale, traders who want to maintain exposure while accessing capital, and crypto-native businesses whose treasuries sit predominantly in digital assets and cannot access conventional bank lending.
It is the third category that carries the most strategic significance. Companies built in the cryptocurrency industry often hold the majority of their treasury in tokens.
Traditional banks either refuse to lend against those assets or impose timelines and documentation requirements that do not match the pace at which crypto businesses operate. Flexline positions itself as corporate working capital for an industry that has been largely excluded from conventional credit markets.
The product supports 48 cryptocurrencies as collateral and is available through Kraken Pro, the exchange's platform for advanced and institutional users.
It is not available in the United States, the United Kingdom, Canada, Australia or several other major jurisdictions, a restriction that reflects the uneven regulatory landscape for crypto lending products and limits the addressable market significantly.
The broader context is a resurgence in crypto-collateralised lending across the industry. Coinbase has expanded its own loan product to support additional digital assets. DeFi lending protocols hold approximately $52 billion in total value locked.
Apollo Global Management has partnered with Morpho to support blockchain-based lending infrastructure. Even traditional mortgage lenders have begun accepting verified crypto holdings as supplementary collateral.
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For Kraken, which has confidentially filed for a potential IPO and raised $800 million at a $20 billion valuation in late 2025, Flexline is part of a broader push into structured financial products that generate recurring revenue beyond trading commissions.
The question is whether the safeguards it has built, segregated wallets, fixed rates, proof of reserves, transparent liquidation terms, are sufficient to prevent the kind of failures that destroyed its predecessors, or whether the next downturn will test those structures in ways that no product design can fully anticipate.
The recap
- Flexline published a deep dive on its business approach
- Crypto-native businesses and high-net-worth individuals have built real wealth
- Company says that wealth should be usable without liquidating crypto
