# Liquidium > Liquidium is a decentralized cross-chain lending protocol focused on native Bitcoin and cross-chain DeFi lending. Use this file as a curated guide to the most important product, docs, and trust pages on liquidium.fi. ## Core Pages - [Homepage](https://liquidium.fi/): Overview of Liquidium's decentralized cross-chain lending protocol and current product positioning. - [Borrow Against Crypto Assets](https://liquidium.fi/features/borrow): Explains borrowing stablecoins against Bitcoin and other supported assets without selling the underlying position. - [Lend Stablecoins & Crypto](https://liquidium.fi/features/lend): Explains supplying USDT, USDC, or Bitcoin to earn native yield driven by borrowing demand. - [Cross-Chain DeFi Protocol](https://liquidium.fi/features/cross-chain): Explains Liquidium's cross-chain model, native asset flows, and bridge-minimized approach. - [Bitcoin-Backed Loans](https://liquidium.fi/use-cases/bitcoin-backed-loan): Use-case page focused on borrowing against Bitcoin while keeping long-term upside exposure. - [Docs](https://liquidium.fi/docs): Canonical documentation hub for product usage, quick start guides, and technical architecture. - [Blog](https://liquidium.fi/blog): Educational articles, launch updates, and security or product explainers related to Liquidium. - [Company](https://liquidium.fi/company): Background on the team, mission, and company context behind the Liquidium protocol. ## AI-Readable Docs - [Docs AI Index](https://liquidium.fi/docs/llms.txt): Docs-only llms.txt index with Markdown export links for all published Liquidium docs pages. - [Full Docs Corpus](https://liquidium.fi/docs/llms-full.txt): One-file Markdown corpus generated from every published Payload docs page. - [Root Full Corpus Alias](https://liquidium.fi/llms-full.txt): Conventional root URL alias for the full Liquidium docs Markdown corpus. ## Docs - [Welcome to Liquidium](https://liquidium.fi/docs): Learn how to supply assets, borrow across chains, and use Liquidium's Simple and Advanced loan experiences. - [Quick start](https://liquidium.fi/docs/quick-start): Choose Simple for a one-step loan or use Advanced to manage balances, supply, borrow, repay, and withdraw with Liquidium. - [Borrow](https://liquidium.fi/docs/quick-start/borrow): Learn how to borrow against supplied collateral, review APY and fees, track delivery, and manage portfolio health in Liquidium Advanced. - [Core concepts](https://liquidium.fi/docs/quick-start/core-concepts): Understanding the key terms and concepts. - [Your profile](https://liquidium.fi/docs/quick-start/profile): Sign in to Liquidium with Internet Identity or a wallet. Save Simple Loans, link accounts, manage notifications, and access positions across devices. - [Repay](https://liquidium.fi/docs/quick-start/repay): Learn how to repay an Advanced debt position, choose a wallet or repay address, track confirmation, and understand the effect on portfolio health. - [Simple Loan](https://liquidium.fi/docs/quick-start/simple-loan): Borrow against your assets in one step, no account required. Borrow USDT or USDC against your BTC. - [Supply](https://liquidium.fi/docs/quick-start/supply): Learn how to supply supported assets, review APY, track confirmations, and use eligible positions as collateral in Liquidium Advanced. - [Withdraw](https://liquidium.fi/docs/quick-start/withdraw): Learn how to withdraw eligible supplied assets, choose a wallet or custom address, track processing, and understand liquidity and portfolio-health limits. - [Resources](https://liquidium.fi/docs/resources): Reference pages for support questions, app data, dashboards, and extra Liquidium resources. - [FAQ](https://liquidium.fi/docs/resources/faq): Answers about Liquidium Simple Loans, Advanced positions, sign-in, wallets, repayments, collateral, portfolio health, ICP assets, and app behavior. - [History](https://liquidium.fi/docs/resources/history): Review Liquidium activity, transaction IDs, exports, and interest history. - [ICP assets and Oisy](https://liquidium.fi/docs/resources/icp-assets-and-oisy): How to use ckAssets over ICP and connect Oisy to Liquidium. - [Insights](https://liquidium.fi/docs/resources/insights): Compare live Liquidium insights, markets, rates, caps, and pool risk parameters. - [Liquidations Dashboard](https://liquidium.fi/docs/resources/liquidations): Monitor liquidatable positions, recent liquidation events, filters, and data freshness. - [Miscellaneous](https://liquidium.fi/docs/resources/miscellaneous): Find miscellaneous Liquidium resources, updates, and supporting information across Liquidium’s Bitcoin-native and cross-chain lending products. - [Vaults](https://liquidium.fi/docs/resources/vaults): Explore integrated Aave and Morpho vaults, guided strategies, estimated returns, and risk notes. - [SDK](https://liquidium.fi/docs/sdk): Learn what the Liquidium SDK does, which integration paths it supports, and where to find setup steps, API reference, types, and examples. - [Technical Documentation](https://liquidium.fi/docs/technical): Technical documentation for the Cross-chain loans - [Architecture](https://liquidium.fi/docs/technical/architecture): Deep dive into the canister architecture and system design - [BTC Pool Canister](https://liquidium.fi/docs/technical/architecture/btc-pool): Bitcoin liquidity custody with boosted withdrawals and UTXO management - [Cross-Chain Flow](https://liquidium.fi/docs/technical/architecture/cross-chain): How native assets move through the protocol via Chain Key technology - [ERC Pool Canister](https://liquidium.fi/docs/technical/architecture/erc-pool): Ethereum asset custody with gas fee fronting and DEX integration - [ICP Pool Canister](https://liquidium.fi/docs/technical/architecture/icp-pool): Native ICP liquidity custody, deposits, withdrawals, and lending integration. - [Lending Canister](https://liquidium.fi/docs/technical/architecture/lending-canister): Technical overview of the Liquidium Lending Canister, including authentication, position accounting, pool coordination, events, prices, and liquidations. - [Technical Concepts](https://liquidium.fi/docs/technical/concepts): Fundamental mechanics that power the Liquidium protocol - [Health Factor](https://liquidium.fi/docs/technical/concepts/health-factor): How position safety is measured and liquidation thresholds work - [Interest Rate Model](https://liquidium.fi/docs/technical/concepts/interest-rates): How borrow and supply rates are calculated using the two-slope kink model - [Liquidations](https://liquidium.fi/docs/technical/concepts/liquidations): How liquidations protect the protocol and its users - [Share-Based Accounting](https://liquidium.fi/docs/technical/concepts/share-accounting): How positions track balances efficiently using shares and indices - [Operations](https://liquidium.fi/docs/technical/operations): How user operations flow through the protocol - [Borrowing](https://liquidium.fi/docs/technical/operations/borrowing): How borrowing flows through the protocol - health checks, debt shares, and async execution - [Deposits](https://liquidium.fi/docs/technical/operations/deposits): How deposits flow through the protocol - inflow detection, subaccounts, and share minting - [Repayments](https://liquidium.fi/docs/technical/operations/repayments): How repayments flow through the protocol - debt detection, share burning, and overpayment handling - [Withdrawals](https://liquidium.fi/docs/technical/operations/withdrawals): How withdrawals flow through the protocol - standard vs boosted paths, fee handling - [Security](https://liquidium.fi/docs/technical/security): Protocol security guarantees - atomicity, authentication, and reliability - [Atomicity & Write-Ahead Logging](https://liquidium.fi/docs/technical/security/atomicity): Two-phase execution model and reliable async operations - [Authentication](https://liquidium.fi/docs/technical/security/authentication): Multi-chain signature verification and replay protection ## Recent Blog Posts - [Liquidium vs Aave: Crypto Borrowing Compared \(2026\)](https://liquidium.fi/blog/liquidium-vs-aave-crypto-borrowing): Compare Liquidium vs Aave for crypto borrowing: native Bitcoin vs wrapped collateral, rates, fees, liquidation, repayment and cross-chain access. - [Borrow Against Bitcoin vs Sell Bitcoin: Costs and Risks](https://liquidium.fi/blog/borrow-against-bitcoin-vs-sell-bitcoin): Compare borrowing against Bitcoin vs selling BTC: costs, repayment, price exposure and liquidation risk, with worked examples to help weigh the tradeoffs. - [Liquidium vs Nexo: Bitcoin-Backed Loans Compared \(2026\)](https://liquidium.fi/blog/liquidium-vs-nexo-bitcoin-backed-loans): Compare Liquidium vs Nexo for Bitcoin-backed loans: borrowing rates, fees, collateral, custody, repayment, and stablecoin or bank payouts. - [Custodial vs Non-Custodial Bitcoin Loans](https://liquidium.fi/blog/custodial-vs-non-custodial-bitcoin-loans): Compare custodial vs non-custodial Bitcoin loans, collateral control, KYC, and liquidation. Learn where Liquidium’s decentralized lending model fits. - [Liquidium vs Ledn: Bitcoin-Backed Loans Compared \(2026\)](https://liquidium.fi/blog/liquidium-vs-ledn-bitcoin-backed-loans): Compare Liquidium and Ledn Bitcoin-backed loans: borrowing rates, fees, repayment terms, LTV, liquidation, custody, and funding options. ## Company & Trust - [Privacy Policy](https://liquidium.fi/privacy): Canonical privacy policy for the liquidium.fi website. - [Terms of Use](https://liquidium.fi/terms): Canonical Terms of Use for the liquidium.fi website and Liquidium Fi App. ## Optional - [Liquidium vs. Aave](https://liquidium.fi/compare/aave): Compare Liquidium and Aave across Bitcoin support, cross-chain lending, bridge requirements, and capital efficiency. - [Liquidium vs. Compound](https://liquidium.fi/compare/compound): Compare Liquidium vs Compound across Bitcoin support, cross-chain lending, bridge requirements, and capital efficiency. - [Liquidium vs. Morpho](https://liquidium.fi/compare/morpho): Compare Liquidium and Morpho across Bitcoin support, cross-chain lending, bridge requirements, market design, and capital efficiency. - [Liquidium vs. Radiant Capital](https://liquidium.fi/compare/radiant): Compare Liquidium vs Radiant across Bitcoin support, cross-chain architecture, messaging-layer risk, and capital efficiency. - [Liquidium vs. Chainflip](https://liquidium.fi/compare/chainflip): Compare Liquidium and Chainflip across Bitcoin support, cross-chain lending design, security model, protocol focus, and capital efficiency.