Base, the blockchain network incubated by Coinbase, announced on 13 October 2026 a product called Earn & Borrow, which it describes on X as “an end-to-end stack to offer your customers stablecoin yield and loans against their crypto” [1]. It is aimed at businesses, not individual users: apps plug it in to give their own customers interest on stablecoins and loans backed by crypto they already hold.
What it is
On its product page, Base says: “Platforms use Base infrastructure and third-party lending markets to offer eligible customers variable stablecoin yield and loans against their digital assets.” [2]
In plain terms, Base is not lending money itself. It provides the network and the building blocks, while the actual lending happens in independent lending markets that run on Base. The page names Morpho and Aave as examples of those lending protocols [2].
How it works
Base sets out the stack in layers [2]:
- Your app. A customer deposits a supported stablecoin such as USDC.
- Wallet. It holds customer assets and signs transactions. Each platform picks its own wallet and custody model.
- Vaults (optional). Base says “Borrowers pay interest on overcollateralized loans. That interest is the main source of yield.”
- Lending protocols. Independent curators choose which lending markets a vault supplies to and set its risk limits. Deposits can also go straight to a protocol.
- Base. The network where deposits, loans, repayments and liquidations are recorded onchain.
On the earning side, Base says deposits earn a variable rate from borrowers, and that customers “can withdraw and stop earning, subject to available liquidity and protocol terms.” [2] On the borrowing side, customers can take a loan against crypto they hold rather than selling it.
The 4.45% figure
The page headlines a “4.45% Average Yield”, which Base defines as the “Average USD stablecoin yield across Base lending markets, prior to any incentives.” [2] That is Base’s own average across markets, not a rate any customer is promised. Rates are variable, and Base’s own legal text says rates, liquidity, withdrawals, loan terms and availability “are not guaranteed” [2]. Base adds that some protocols and programmes may pay extra rewards on top, on eligible markets.
Base’s disclosures and the risks
Base is open about its ties to the protocols it names. The page says: “Names are examples, not endorsements. Base has commercial relationships with Morpho and Aave. Vaults are run by independent curators. Base and Coinbase do not curate, manage or guarantee any vault.” [2]
It also lists the risks plainly: “Lending and borrowing through third-party protocols carries risks, including smart-contract failure, oracle errors, liquidation, stablecoin depegs and loss of funds.” [2]
The Defiant, which covered the launch, points out that borrowers stay subject to the underlying protocol’s liquidation rules. On Aave, for example, a position can be liquidated when its health factor, a measure of how well the loan is covered by collateral, falls below 1 [3]. Falling collateral prices, oracle updates, interest and protocol settings can all push a loan towards that point.
Who is behind it, and what is not yet known
According to The Defiant, Aave founder Stani Kulechov quoted Base’s announcement on X with the words “Powered by @aave” [3]. The Defiant also reports that Base’s developer guides show examples such as borrowing USDC against wrapped Ether on Aave V3 and depositing USDC into the Steakhouse Prime USDC vault on Morpho [3].
The Defiant notes that Base’s announcement and product page do not name any live customer apps or confirm US availability [3]. Base says eligibility, fees, loan terms and availability depend on the platform, the protocol and the jurisdiction [2].
What this means
- Base wants to be the plumbing for crypto lending in other people’s apps. Wallets, exchanges and fintechs could add yield and loans without building lending markets themselves.
- The yield is not a savings rate. The 4.45% is Base’s average before incentives, it moves with borrower demand, and it is not guaranteed.
- The risk sits with users and curators. Base says it does not curate or guarantee vaults, so the safety of each product depends on the protocol, the vault curator and the app offering it. TSN has previously covered a roughly $6m loss at a Base vault that followed a whitelist change (see below).
Sources
- Base (@base) on X, “Introducing Earn & Borrow”, 13 October 2026. https://x.com/base/status/2110054191419027932
- Base, “Earn & Borrow” product page, accessed 13 October 2026. https://brand.base.org/earn-borrow
- The Defiant, “Base Introduces Earn & Borrow With Aave and Morpho”, 13 October 2026. https://thedefiant.io/news/defi/base-introduces-earn-borrow-with-aave-and-morpho
