The XRP Ledger Foundation received an amendment proposal on May 26 that would introduce multiple automated market maker curve types to the blockchain’s decentralized exchange infrastructure, moving beyond the uniform constant product model that has governed liquidity pools since the original XLS-30 AMM launched in 2024.
Submitted by Denis Angell and Roman Thpt, contributors to the XRPL codebase, the proposal would allow pool creators to select from four curve architectures at the moment of pool creation. The first curve preserves the existing constant product formula identical to Uniswap v2. The second introduces concentrated liquidity mechanics equivalent to Uniswap v3, allowing liquidity providers to specify price ranges where their capital operates. The third curve implements a StableSwap model mirroring Curve Finance v1, optimized for low-slippage swaps between correlated assets.
The fourth curve type, designated Smart AMM, remains reserved for future specification. It would support custom swap mathematics and dynamic fees written in WebAssembly binaries, enabling pool creators to define fully programmable trading logic without requiring changes to the core XRPL payment engine.
The current XRPL AMM spreads liquidity uniformly across all price ranges. The proposal identifies three structural constraints: capital inefficiency, since only a small fraction of deposited liquidity concentrates near the market price; curve inflexibility, as different trading pairs benefit from different mathematical models; and limited composability across pool types.
Under the proposed architecture, the XRPL payment engine would route swaps across all curve types automatically, meaning end-users would not need to adjust behavior or select curve types manually. A single swap transaction could interact with constant product, concentrated liquidity, stablecoin-optimized, and future custom pools without explicit routing instructions.
The timing arrives as the XRP Ledger hosts $2 billion in tokenized real-world assets and processes $1.93 billion in monthly stablecoin transfers. Stablecoin pairs would benefit immediately from Curve Finance-style concentrated liquidity, reducing slippage on high-volume corridors. The proposal does not specify a timeline for community review or implementation decision.
