XRP Ledger proposes new AMM curves to boost DeFi trading

XRP Ledger’s governing body has released a draft amendment that would let users pick from multiple pricing models when creating liquidity pools on its decentralized exchange — a change that could broaden the platform’s DeFi capabilities [1]. The proposal, called AMM Swappable Curves, adds StableSwap and concentrated‑liquidity options to the existing constant‑product AMM introduced in March 2024.

Key takeaways

• The amendment introduces two new curve models—StableSwap for low‑volatility assets and concentrated liquidity for tighter price ranges [1].
• StableSwap is aimed at stablecoins such as USDT and USDC and tokenized real‑world assets, promising tighter pricing and lower slippage [1].
• The draft also adds a “pluggable curve architecture,” allowing pool creators to select the formula that best fits their asset pair [1].
• The proposal is still in draft form; validators have not yet approved it, and existing pools would remain unaffected if the change passes [1].
• Decentralized finance (DeFi) enables peer‑to‑peer lending, borrowing and trading on blockchain networks without traditional intermediaries [2].

Expanding the AMM toolkit on the XRP Ledger

The current XRP Ledger AMM relies on a single “constant product” curve, which works well for volatile cryptocurrencies but can be inefficient for assets that trade near a fixed value. The new draft, posted by the XRP Ledger Foundation on May 26, proposes two additional models. The StableSwap curve is designed for assets that maintain a stable price—such as USDT, USDC, and tokenized real‑world assets tied to fiat currencies—by offering tighter pricing and reduced slippage during trades [1]. For traders who want to concentrate their capital around active price levels, the concentrated‑liquidity model lets liquidity providers allocate funds more efficiently, potentially improving capital utilization [1].

Developers Denis Angell and Roman Thpt filed the amendment, which also introduces a “pluggable curve architecture.” This architecture would let pool creators choose the most appropriate pricing formula for each asset pair, rather than forcing every market into the constant‑product model [1]. If validators eventually approve the amendment, it would extend the existing XLS‑30 AMM framework without disrupting pools already operating on the ledger [1].

Why the upgrade matters for DeFi participants

DeFi platforms aim to replace traditional financial intermediaries by allowing direct, blockchain‑based transactions, but their effectiveness depends on the underlying market mechanisms [2]. By adding curve diversity, the XRP Ledger could attract more stablecoin liquidity and tokenized real‑world assets, sectors where the current constant‑product model often yields higher slippage. Improved pricing efficiency may encourage both retail users and institutional liquidity providers to engage with the XRP DEX, potentially expanding the ecosystem’s depth and resilience. The proposal’s status remains uncertain; until validators vote, the changes are not active, and the existing AMM continues to operate as before [1].