Compare the best platforms to borrow USD against Bitcoin in 2025: Aave v3, Morpho Blue, Ledn, Nexo, Arch, Coinbase, and aggregators side by side.
Arkadii Kaminskyi
Arkadii Kaminskyi
Head of Operations at Sats Terminal
Head of Operations at Sats Terminal with 5 years of experience in crypto. Specializes in DeFi, yield farming, and borrowing — has reviewed 50+ crypto products.
Finding the best platforms to borrow USD against Bitcoin in 2025 is less about picking a single winner and more about understanding which venue fits your custody preferences, risk tolerance, and chain of choice. The market has matured considerably. Defunct names that dominated 2021 headlines are gone. What remains is a leaner ecosystem of non-custodial DeFi protocols like Aave v3 and Morpho Blue, a handful of credible CeFi desks such as Ledn, Nexo, and Arch, and a growing layer of aggregators that surface the best offers without taking custody themselves. This roundup walks through each option, compares them side by side, and explains how to read the trade-offs that matter — custody model, supported wrapped BTC assets, typical loan-to-value ranges, rate structure, and KYC exposure — so you can borrow stablecoins against your BTC with full awareness of what you are signing up for.
Before ranking platforms, it helps to agree on the criteria. Borrowing stablecoins against Bitcoin is not a commodity product. Two venues offering the same nominal interest rate can differ enormously in how they handle your collateral, what happens if the price of BTC drops, and whether you retain any on-chain visibility into your position. The best platforms score well across a consistent set of dimensions.
Custody model. Does the platform take custody of your Bitcoin, or does your collateral sit inside an audited smart contract that you can verify on-chain? Non-custodial venues like Aave v3 and Morpho Blue enforce loan terms through code. Custodial lenders hold your BTC on their balance sheet and your safety depends on their solvency, internal controls, and insurance posture. Neither model is inherently superior, but they carry different failure modes.
Supported chains and wrapped BTC. Most DeFi lending markets do not accept native Bitcoin directly. They accept wrapped versions such as wBTC on Ethereum and Arbitrum, cbBTC on BASE, or BTCB on BNB Chain. Each wrapped asset carries its own issuer risk and liquidity profile. Bridging and wrapping are solvable problems, but the friction of doing it yourself should factor into your platform choice.
Maximum LTV and liquidation threshold. Max LTV is the ceiling on how much you can borrow relative to your collateral value. Liquidation threshold is the level at which the protocol can sell your collateral. These numbers vary by asset and venue. Typical ranges for wBTC on Aave v3 land around 70 to 80 percent max LTV with liquidation thresholds in the mid to high 70s. CeFi desks tend to be more conservative, often capping origination LTV at 50 percent and triggering margin calls well before liquidation. See our guide on optimizing your LTV ratio for a deeper treatment.
Rate profile. Variable rates — used by most DeFi lending pools — move with utilization. Fixed rates — offered by some CeFi platforms and certain Morpho markets — trade predictability for a typical premium. Rate ranges in early 2025 vary widely by chain, pool, and whether you are quoting borrow APR or the all-in cost with fees.
KYC requirement. Non-custodial DeFi protocols do not require identity verification. CeFi lenders almost always do. Aggregators that never take custody can keep signup lightweight while still routing to both categories. If privacy or onboarding friction matters, this is one of the more meaningful axes of comparison.
DeFi lending in 2025 is effectively a two-horse race at the quality end of the spectrum. Aave v3 is the long-standing incumbent, operating across most major EVM chains. Morpho Blue is the newer challenger, known for isolated markets, curator-defined risk parameters, and increasingly attractive rates for BTC-backed borrowing. Both are non-custodial. Both are reachable directly through their web apps, through aggregators, and — in Morpho's case — through front-ends like Coinbase's embedded borrow flow. For a more focused comparison, read comparing Aave, Morpho, and CeFi.
Aave v3 is the most liquid non-custodial lending protocol for wBTC collateral across Ethereum, Arbitrum, Optimism, Polygon, and BASE. Collateral is supplied into a pooled contract. Borrowers draw stablecoins — USDC, USDT, DAI depending on the chain — against that collateral at variable rates that shift with pool utilization. Max LTV on wBTC typically sits in the 70 to 80 percent range, with liquidation thresholds a few points higher. If your health factor falls below one, liquidators repay part of your debt in exchange for discounted collateral.
Strengths: deep liquidity, battle-tested code, broad chain coverage, predictable mechanics, and strong on-chain transparency. Weaknesses: variable rates can spike during periods of high utilization, gas costs on Ethereum mainnet can be material for smaller loans, and the user experience assumes familiarity with wallets, approvals, and bridging. Aave's own documentation is the canonical reference for current parameters.
Morpho Blue uses isolated markets — each defined by a collateral asset, a loan asset, an LLTV (liquidation loan-to-value), an oracle, and an interest rate model. This isolation means a problem in one market cannot directly contaminate another. Curators build vaults on top of these markets to route supplier capital according to published risk mandates. For a BTC-collateralized USDC borrower, the main question is which Morpho market has the LLTV and rate you want on the chain you want to use.
Strengths: cleaner risk segregation, often more competitive rates than pooled protocols, and growing support for fixed-term products through vault wrappers. Weaknesses: the isolated-market model requires more legwork to understand exactly which market you are entering, and liquidity in any single market can be shallower than on Aave. For a primer on the protocol, see our post on Morpho going live on Borrow.
Most borrowers do not interact with Aave or Morpho directly. They use aggregator front-ends that abstract away chain selection, wrapping, approvals, and market choice. Aggregators do not issue loans — they compare terms across protocols and execute against whichever one offers the best net outcome for a given trade. More on that in the aggregator section below and in our overview of how lending aggregators find the best rates.
CeFi Bitcoin-backed lending in 2025 looks very different from the 2021 vintage. The collapses of BlockFi, Celsius, and Voyager purged the weakest operators. The survivors are fewer, more conservative, more forthcoming about reserves, and — in several cases — offer a genuinely strong product for borrowers who want a familiar fiat-style experience without the self-custody burden.
Ledn is a Canadian lender focused almost exclusively on Bitcoin-backed loans and BTC savings products. Its flagship loan product offers a straightforward structure: deposit BTC, borrow USD (or USDC), receive the funds to a bank account or stablecoin address. Ledn publishes monthly proof-of-reserves attestations by Armanino and has offered a custodied option where the BTC is held in segregated cold storage with no rehypothecation. Origination LTV typically tops out around 50 percent. Rates are fixed for the term of the loan, typically in the high single digits to low teens as of early 2025, depending on product tier. KYC is required.
Strengths: strong transparency culture for a CeFi lender, clear product structure, credible custody options. Weaknesses: higher headline rates than DeFi in most conditions, geographic restrictions, and the unavoidable counterparty exposure that comes with any custodial venue.
Nexo offers an "Instant Crypto Credit Line" against a basket of supported collateral that includes BTC. The product is more flexible than Ledn's — loans are revolving, LTV-driven, and tied to a tiered loyalty program that influences both rates and borrowing power. Headline rates are advertised starting in the single digits for top-tier users and climb from there. Nexo publishes real-time proof-of-reserves through Armanino's live attestation portal. KYC is required and jurisdictional restrictions apply.
Strengths: flexible revolving structure, mature product, integrated card and savings products for users who want a one-stop experience. Weaknesses: effective rates depend heavily on loyalty tier, and the product bundling means you end up with more exposure to a single counterparty than a pure single-purpose loan would entail.
Arch Lending is a newer U.S.-based institutional lender that has positioned itself squarely in the post-2022 "safer CeFi" niche. It offers Bitcoin-backed loans with qualified custody through BitGo and other institutional custodians, a written no-rehypothecation policy, and an explicit focus on accredited and high-net-worth borrowers. Loan sizes start higher than retail platforms and the product is oriented toward larger, term-structured borrowings. KYC is mandatory.
Strengths: institutional-grade custody, clear no-rehypothecation stance, straightforward term product. Weaknesses: higher minimums, narrower geographic and eligibility criteria, and the standard CeFi trade-off — you are trusting a company rather than a contract.
Coinbase offers a BTC-backed USDC loan product inside its consumer app, powered by Morpho Blue on BASE with cbBTC as collateral. From the user's perspective it feels like a CeFi loan — Coinbase handles UX, support, and fiat on/off ramps — but under the hood it is a non-custodial on-chain borrow. This hybrid model is one of the more interesting developments of the past year. KYC is required because Coinbase is a regulated exchange, but the collateral sits in a verifiable smart contract rather than a corporate balance sheet.
Strengths: familiar brand, smooth UX, genuinely non-custodial collateral handling. Weaknesses: geographic limitations, single-chain (BASE) and single-asset (cbBTC) scope, and no rate-shopping across other venues.
Strike has announced and piloted BTC-backed lending in select U.S. markets, though availability remains uneven as of early 2025. Other venues such as Unchained continue to focus on collaborative multisig custody models for Bitcoin-backed borrowing — a niche but legitimate option for users who prioritize keeping signing keys under their own control even in a CeFi-flavored arrangement. None of these are broadly available, so treat them as situational rather than headline options.
For a fuller platform-by-platform treatment, see our best Bitcoin lending platforms of 2025 full review and the pricing-focused Bitcoin lending rates in 2025: a platform-by-platform comparison.
The table below summarizes the main venues on the criteria that matter for a BTC-collateralized USD borrower in early 2025. Rate profiles are described qualitatively — you should always verify current numbers on the platform itself before committing capital.
| Platform | Category | Custody | Chains / Wrapped BTC | Typical Max LTV | Rate Profile | KYC |
|---|---|---|---|---|---|---|
| Aave v3 | DeFi | Non-custodial smart contract | Ethereum, Arbitrum, Optimism, Polygon, BASE; wBTC, cbBTC | 70–80% (typical range for wBTC) | Variable, pool-utilization driven | None |
| Morpho Blue | DeFi | Non-custodial isolated markets | Ethereum, BASE; wBTC, cbBTC | Market-dependent, often 70–86% LLTV | Variable per market; some fixed-term vaults | None |
| Ledn | CeFi | Custodial (segregated custody option) | Native BTC (off-chain) | ~50% origination | Fixed for term | Required |
| Nexo | CeFi | Custodial | Native BTC (off-chain) | Up to ~50%, tier-dependent | Variable; tier-dependent | Required |
| Arch Lending | CeFi | Custodial via qualified custodians | Native BTC (off-chain) | Typically ≤50% | Fixed for term | Required |
| Coinbase (Morpho-integrated) | Hybrid | Non-custodial on-chain collateral | BASE only; cbBTC | Up to ~75% (Morpho market) | Variable | Required |
| Unchained | CeFi (multisig) | Collaborative multisig | Native BTC | Typically ≤40% | Fixed for term | Required |
| Borrow by Sats Terminal | Aggregator | Non-custodial; routes to multiple lenders | BASE, Ethereum, Arbitrum, Polygon, Optimism, BSC; wBTC, BTCB, cbBTC | Inherits lender's LTV | Surfaces best rate across providers | None |
A couple of caveats are worth restating. Max LTV is not a target — borrowing at the cap maximizes liquidation risk. Rate profile describes how rates behave, not a guaranteed number. And "custodial" is not automatically bad any more than "non-custodial" is automatically safe; both models can fail, just in different ways. Our companion guide on how to choose the best crypto lending platform for you walks through how to weight these factors against your own situation.
Quoted rates are the number most borrowers fixate on, and also the number that is easiest to misread. A "6 percent APR" headline on a CeFi page and a "6 percent variable" quote on a DeFi pool can translate to very different real costs once you include term structure, origination fees, and the probability that the rate moves before you repay. The table below describes typical rate behavior as of early 2025 — ranges, not specific quotes — to help calibrate expectations.
| Venue Type | Rate Mechanism | Typical Behavior (Early 2025) | Who It Suits |
|---|---|---|---|
| DeFi pooled (Aave v3) | Variable, utilization-based | Moves continuously; cheaper at low utilization, spikes when pool is heavily borrowed | Borrowers comfortable monitoring and refinancing |
| DeFi isolated (Morpho Blue) | Variable per market; some fixed-term vault wrappers | Often undercuts pooled markets on BTC-stable pairs; less liquidity in any single market | Rate-sensitive borrowers who want market-specific risk parameters |
| CeFi fixed-term (Ledn, Arch) | Fixed for the life of the loan | Predictable; typically a premium over spot DeFi variable rates | Borrowers who value budget certainty over absolute lowest cost |
| CeFi revolving (Nexo) | Variable, loyalty-tier dependent | Headline rates vary materially by tier; effective rate can be hard to pin down | Users already embedded in the platform's ecosystem |
| Hybrid (Coinbase–Morpho) | Variable, inherits from underlying Morpho market | Tracks the underlying market; UX hides the mechanics | Users who want smart-contract collateral without DeFi-native tooling |
Two points that deserve emphasis. First, always compute the all-in cost: origination fees, any platform fees, the gas or bridging cost to get into and out of the position, and the expected interest over your holding period. A cheaper headline rate with a large origination fee can cost more than a higher rate with none. Second, on variable-rate venues, the rate you see today is not the rate you will pay tomorrow. Plan for a range, not a point estimate. Our guide on crypto lending rates explained goes into how "good" rates are contextual to market conditions.
Max LTV is both a ceiling and a liquidation trigger. If the maximum LTV on a wBTC market is 75 percent and you borrow at 70 percent, a BTC price decline of just under 7 percent pushes you into liquidation territory. Running at 40 to 50 percent LTV against a 75 percent cap gives you a meaningful buffer — roughly a 33 to 47 percent BTC drawdown before liquidation, depending on exact thresholds. Whether that is enough cushion depends on your risk tolerance, but it is almost always a more comfortable place to sit than the cap. Read managing liquidation risk for practical buffer-sizing frameworks.
This is the single most important trade-off in Bitcoin-backed borrowing, and it is worth treating as a deliberate choice rather than a default. Neither model is strictly safer. They fail in different ways, and the right answer depends on your own threat model.
Non-custodial venues (Aave v3, Morpho Blue, and any aggregator that only routes to them) enforce loan terms through audited smart contracts. Your collateral is on-chain. You can inspect it, verify its parameters, and watch liquidation thresholds move in real time. The primary risks are smart-contract bugs, oracle manipulation, and — to a lesser extent — chain-level failures. Past incidents have demonstrated that none of these risks are zero, but the top-tier protocols have multi-year track records and extensive audit histories.
Custodial venues (Ledn, Nexo, Arch, and traditional CeFi lenders) hold your BTC directly. They may store it in segregated cold wallets, in qualified custody arrangements, or commingled on their balance sheet depending on the platform. The primary risks are operational — solvency, internal controls, fraud, regulatory seizure, and the possibility of rehypothecation. The 2022 collapses were largely operational failures of specific firms, not a categorical indictment of custodial lending.
Some borrowers want absolute on-chain verifiability and are willing to learn wallets, approvals, and bridging to get it. Others want a simple fiat-like experience, a phone number to call, and bank-rail payouts. Both are legitimate. Our deeper comparison at CeFi vs DeFi crypto lending walks through the decision tree, and custodial vs non-custodial lending covers the mechanics in more detail.
Aggregators are the newest structural layer in crypto borrowing, and they change the shape of the decision. Instead of choosing one lender up front, an aggregator surveys multiple providers at quote time and routes your borrow to whichever one offers the best terms for the specific trade you want to make. The underlying loan is still issued by the chosen lender — the aggregator is a routing and UX layer, not a counterparty.
There are three things a good aggregator does that are genuinely hard to replicate by manually hopping between protocol UIs. It normalizes quotes across venues with different rate mechanics, fee structures, and wrapped-BTC assumptions, so you can compare apples to apples. It handles the operational plumbing — bridging between chains, wrapping native BTC into wBTC or cbBTC, approving tokens — in a single user-approved flow. And it removes the sunk-cost effect of being committed to one platform by making switching costs approximately zero for future loans.
Aggregators are also well-positioned to stay neutral on the custodial/non-custodial debate. An aggregator that presents both categories side by side with clear labels lets the borrower make an informed choice rather than funneling them toward a single model. Our piece on how lending aggregators find best rates covers the routing logic in more technical detail, and the FAQ on what is a crypto lending aggregator summarizes the category for newcomers.
Borrow by Sats Terminal is the aggregator layer for Bitcoin-backed stablecoin borrowing — not a competing lender. It does not issue loans. It compares offers from Aave v3, Morpho Blue, and supported CeFi lenders, surfaces the most competitive terms, and executes the borrow against whichever venue wins on a given request. The user stays in control: every step — collateral deposit, wrapping, bridging, protocol supply, stablecoin draw — is approved explicitly, and collateral never passes through a Sats Terminal-controlled address.
The concrete mechanics look like this. You sign up with just an email — no KYC. A self-custodial Privy wallet is created automatically, so there is no seed phrase to safeguard and no password to lose. You deposit native BTC to a unique address; Borrow monitors Bitcoin confirmations in real time. Behind the scenes, the system handles bridging and wrapping to the right asset (wBTC, BTCB, or cbBTC) on the right chain — BASE, Ethereum, Arbitrum, Polygon, Optimism, or BSC — based on which lender offered the best terms. Stablecoins land in your self-custodial wallet, typically USDC, with USDT supported on some chains.
Where it fits in the comparison above: Borrow is the "route to multiple lenders" row. It is the layer you use when you want DeFi-grade rates but do not want to run a wallet manually, or when you want to compare a CeFi fixed-term offer against a DeFi variable-rate quote in a single screen without having to create accounts on three different platforms. Because Borrow itself is non-custodial, it is compatible with the safety posture of the non-custodial lenders it routes to — nothing about using the aggregator introduces a custodial layer. For more on the aggregator's architecture, see the FAQ entries on which protocols Borrow supports and how Borrow aggregates lending offers. For a broader look at how to weigh platforms against each other, our best crypto lending platforms 2025 ranked and reviewed roundup and the top 10 crypto lending platforms in 2025 list are both useful follow-ups. If you want a framework for evaluating any specific venue, the guide on evaluating crypto lending platforms is a good starting point.
Common Questions
The best platforms to borrow USD against Bitcoin in 2025 fall into three camps. On the DeFi side, Aave v3 and Morpho Blue are the most liquid and credible non-custodial venues, typically accessed through aggregator front-ends rather than directly. On the CeFi side, Ledn, Nexo, and Arch are the leading custodial lenders with credible transparency practices. Hybrid offerings like Coinbase's Morpho-integrated BTC-backed USDC loan sit between the two. No single platform is best for every borrower — the right choice depends on whether you prioritize rate, custody model, fixed-term certainty, or KYC avoidance.
Neither is categorically safer — they fail differently. DeFi protocols like Aave v3 and Morpho Blue carry smart-contract risk, oracle risk, and chain-level risk, but your collateral sits in an auditable on-chain contract. CeFi lenders carry solvency, operational, and rehypothecation risk, but can offer insurance, qualified custody, and fiat rails. The 2022 collapses of BlockFi, Celsius, and Voyager were CeFi-specific operational failures. Well-run CeFi lenders that publish proof-of-reserves and avoid rehypothecation can be reasonable choices, particularly for borrowers who would otherwise manage self-custody poorly.
On Aave v3, max LTV for wBTC typically sits in the 70 to 80 percent range, with liquidation thresholds a few percentage points higher. Morpho Blue markets vary by curator and oracle choice, with some offering LLTVs as high as 86 percent. CeFi lenders are considerably more conservative, usually capping origination LTV near 50 percent and triggering margin calls well before liquidation. Maximum LTV is a ceiling, not a recommended operating point. Most disciplined borrowers run positions at 30 to 50 percent LTV to maintain a meaningful buffer against BTC price drawdowns.
It depends on the platform. Non-custodial DeFi protocols — Aave v3, Morpho Blue — do not require KYC at the protocol level. Aggregators that only route to non-custodial lenders and never take custody, like Borrow by Sats Terminal, can also keep signup lightweight (email only). CeFi lenders such as Ledn, Nexo, and Arch require full KYC, and hybrid offerings through regulated exchanges like Coinbase also require identity verification. If no-KYC borrowing matters to you, the DeFi and aggregator paths are the relevant options; if you are fine with KYC, the CeFi universe opens up.
Variable rates — the default on DeFi pooled markets like Aave v3 — move continuously with pool utilization. When utilization is low, rates are cheap; when borrowing demand spikes, rates can climb sharply. Fixed rates — more common on CeFi platforms like Ledn and Arch, and on some Morpho vault wrappers — are locked in for the life of the loan, trading the chance of a cheaper variable rate for predictability. Neither is strictly better. Choose variable when you expect to hold short-term and want the lowest average cost; choose fixed when cash-flow certainty matters more than headline rate.
DeFi protocols accept wrapped BTC: wBTC on Ethereum, Arbitrum, Optimism, and Polygon; cbBTC on BASE; BTCB on BNB Chain. If you hold native BTC, you need to bridge and wrap before supplying as collateral — or use an aggregator that handles this automatically. CeFi lenders like Ledn, Arch, and Unchained accept native BTC directly because they custody the asset off-chain. Borrow by Sats Terminal accepts native BTC deposits and handles wrapping and bridging automatically, so from the user's perspective you only ever interact with BTC and the resulting stablecoins.
A lending platform issues loans — it holds collateral (custodially or through a smart contract) and takes on the obligation of the loan. An aggregator does neither. It surveys multiple lenders, normalizes their quotes, and routes the user's request to whichever platform offers the best terms, while the underlying loan is issued by that chosen lender. Borrow by Sats Terminal is an aggregator: it does not issue loans, it never takes custody, and it never appears as a counterparty on the borrower's balance sheet. The economics and risks of the underlying loan are always those of the selected lender.
Liquidation mechanics vary by venue. On DeFi protocols, when your loan's health factor falls below one, a liquidator repays part of your debt in exchange for a discounted slice of your collateral. You keep any remaining collateral above the liquidation amount, minus the liquidation penalty. On CeFi platforms, liquidation is usually preceded by margin calls asking you to top up collateral or partially repay. If you do not respond, the lender sells enough collateral to bring the position back within policy. Both flows can happen fast during sharp BTC drawdowns, which is why running with a comfortable LTV buffer is the single most effective way to avoid them. The best platforms to borrow USD against Bitcoin in 2025 are the ones whose custody model, rate profile, and chain support line up with your own situation — not the ones with the loudest marketing. Aave v3 and Morpho Blue dominate the non-custodial side on pure rate and transparency. Ledn, Nexo, Arch, and Coinbase's Morpho-integrated flow cover the custodial and hybrid end with credible post-2022 practices. Aggregators like Borrow by Sats Terminal add a neutral routing layer that lets you compare these venues side by side and borrow without giving up self-custody or enduring KYC. If you want to see the current best offer for your specific BTC amount and target stablecoin, the most efficient next step is to load up Borrow by Sats Terminal and get a live quote — no account beyond an email required, and no commitment until you approve the transaction yourself.