// the find
sea-protocol/seaprotocol
Sea protocol is the ultimate DEX base on order-book & AMM on Aptos & Sui.Anybody has the right to trade any asset anywhere, anytime!
Sea Protocol is a hybrid order-book/AMM DEX written in Move for the Aptos and Sui blockchains. The main idea is combining a traditional limit-order book with AMM liquidity pools, plus on-chain grid trading automation. The README now redirects the EVM version to a separate repo, so this is purely the Move implementation.
The grid trading module is the most interesting piece — on-chain grid orders that auto-flip between buy and sell as price crosses levels is genuinely useful and not common in DeFi. The zero-spread stable pair design (post-only orders on both sides at the same price) is a practical solution for stablecoin swaps without slippage. The red-black tree implementation in `sea_lib/sources/rbtree.move` is notable — maintaining a sorted order book on-chain in Move requires careful data structure choices, and they didn't just punt to a list. Trading-as-mining (fee rebates split 50/50 between traders and LPs) addresses a real Uniswap criticism about trader incentives.
5050 stars with 52 forks and last activity March 2026 is a red flag — star count almost certainly inflated, and the fork count suggests minimal external usage or contribution. The codebase has no audit reports, no formal specification, and the spec files present (`u256.spec.move`) appear to be stubs. The README still contains the banned word 'leverages' and generic manifesto language ('Bank the unbanked') that reads like a pitch deck, not a working protocol. There is no documentation on the AMM invariant used, fee structure, or how the order book and AMM interact at the matching layer — you'd have to reverse-engineer `amm.move` and `market.move` to understand the core logic.