Garden Finance

Garden Finance is a trustless cross-chain Bitcoin bridge protocol that uses Hashed Timelock Contracts (HTLCs) to let users move native BTC and Bitcoin-wrapped assets directly between Solana, Ethereum, Arbitrum, Base, BNB Chain, Sui, Starknet, Monad, Litecoin, HyperEVM, and other chains without ceding custody to a third party. The protocol operates through a non-custodial order book: when a user submits a swap request, the order is broadcast to a network of competitive counterparties called fillers (also referred to as solvers), who lock the output asset on the destination chain inside an HTLC. The user then claims the output by revealing a cryptographic secret, which simultaneously releases the source-chain leg for the filler; the HTLC enforces that both legs complete atomically or both revert after a timeout, eliminating partial-execution and stuck-fund risks that plague traditional bridges. Settlement takes 30 seconds to around five minutes depending on Bitcoin block confirmation times. Fillers compete to fill orders, and the system disincentivises any single filler from dominating by giving SEED token stakers authority to direct order flow toward reliable fillers and away from poor performers, creating a delegated proof-of-stake layer for solver oversight. Garden's primary product is its Swap interface, which supports BTC to and from SOL, ETH, USDC, WBTC, and cbBTC, plus cross-chain stablecoin routes between Ethereum, Base, and Arbitrum; as of mid-2026 the platform also routes direct deposits into HyperCore (Hyperliquid's spot trading layer). The Stake product lets SEED holders participate in governance and earn protocol revenue, with a minimum stake of 2,100 SEED and a 210,000 SEED threshold to register as a solver. An on-chain Explorer tracks swap history, and an SDK plus API offer developer tooling described as production-ready and implementable in roughly 30 minutes for React frontends; the SDK underpins integrations with LI.FI (which added Garden's native Bitcoin routes in April 2026) and OnMeta (fiat-to-BTC on-ramps). On Solana, Garden deployed native Rust-based on-chain programs for both SOL and SPL token HTLC swaps, providing a fully on-chain settlement path without relying on a wrapped token or multisig bridge. cbBTC on Solana has been particularly active: the protocol recorded a 24-hour all-time high of $3.8 million in cbBTC volume on July 1, 2026, representing 80 percent of total daily volume. The protocol's native utility and governance token is SEED, launched on January 18, 2024, with a capped supply of 147 million tokens on Ethereum (0x5eed99d066a8CaF10f3E4327c1b3D8b673485eED) and Arbitrum (0x86f65121804D2Cdbef79F9f072D4e0c2eEbABC08). Token holders can stake for governance and revenue sharing, qualify as a solver at the 210,000 SEED threshold, or burn 21,000 SEED to mint a Gardener Pass for early feature access and exclusive community benefits. Security has been prioritised: as of April 2026 the protocol published results from four separate third-party audits. Trail of Bits completed a full protocol security assessment. Zellic audited the Move HTLC implementation on Sui. OtterSec conducted an HTLC swapper audit. A Code4rena competitive audit from November to December 2025 engaged 813 independent security researchers reviewing 15 smart contracts across 2,163 lines of Solidity, Rust, Cairo, and Move; the review found zero high or critical issues, one medium severity issue (a missing ERC-20 return-value check since fixed with SafeERC20), and one low severity issue (Solana programs lacked validation preventing the same address acting as both redeemer and refundee), with $37,500 in rewards distributed. The protocol launched under the name Catalog Finance (GitHub organisation: catalogfi) before rebranding to Garden Finance. The project reached $800 million in cumulative swap volume by September 2024. Backers and ecosystem partners listed on the homepage include Multicoin Capital, Phantom, Base, Solana, and Arbitrum. For Solana users, Garden provides one of the few non-custodial, on-chain-enforced paths for bringing native BTC into the Solana ecosystem and converting it to SOL, USDC, or cbBTC at competitive market rates without relying on a custodial bridge or centralised exchange.