This article may contain affiliate links. If you click a link and make a qualifying purchase, we may earn a commission — at no extra cost to you. We participate in affiliate programs including ShareASale, CJ Affiliate, and Impact. Full disclosure →
The XRPL AMM (Automated Market Maker) is one of the most significant upgrades to the XRP Ledger in its history. Launched via the XLS-30 amendment in 2024, it brings Uniswap-style liquidity pools to the XRP Ledger — and adds a unique innovation called the auction slot that no other AMM protocol has implemented.
What Is an AMM?
An Automated Market Maker is a type of decentralized exchange that uses a mathematical formula — rather than a traditional order book — to price assets. The most common formula is x × y = k (constant product), where x and y are the quantities of two tokens in a pool, and k is a constant.
When a trader swaps token A for token B, the formula automatically adjusts the price based on the ratio of tokens remaining. Liquidity providers deposit tokens into the pool and earn a fraction of every trade that passes through.
How the XRPL AMM Is Different
The XRPL AMM has two features that distinguish it from Uniswap and other standard AMMs:
1. Native DEX Integration
The XRPL AMM is not a separate protocol — it’s built directly into the XRP Ledger and integrated with the native order book DEX. When a trade is submitted to the XRPL DEX, the protocol automatically routes it to whichever source offers the best price: the order book or the AMM pool. This “best execution” routing benefits traders without any additional steps.
2. The Auction Slot
This is the XRPL AMM’s most innovative feature. Each AMM pool has a single auction slot that can be bid on by traders. The highest bidder gets:
- A discounted trading fee for 24 hours (as low as 0% versus the standard pool fee)
- The slot expires after 24 hours and must be re-bid
The auction proceeds are distributed to liquidity providers, giving LPs an additional revenue stream beyond trading fees. This mechanism also incentivizes arbitrageurs to correct price discrepancies quickly, reducing impermanent loss for LPs.
XRPL AMM Fee Structure
Each XRPL AMM pool has a configurable trading fee set when the pool is created:
- Range: 0 to 1% (0–1,000 basis points)
- Common pools use 0.3% or 0.5%, similar to Uniswap
- The fee is split between liquidity providers
- Auction slot proceeds are distributed to LPs in addition to fees
How to Provide Liquidity to XRPL AMM Pools
Step 1: Get an XRPL Wallet
Use Xaman (XUMM) — the most capable XRPL wallet for DeFi interactions. Ensure you have at least 10 XRP (base reserve) plus the XRP you want to provide as liquidity.
Step 2: Buy XRP and Your Chosen Partner Asset
Common XRPL AMM pairs include XRP/RLUSD, XRP/SOLO, XRP/CSC. You need equal dollar values of both assets.
Step 3: Set Up Trust Lines
For non-XRP tokens (like RLUSD or SOLO), you need to establish a trust line from your XRPL account to the token issuer. This is done in Xaman or directly via a DEX interface.
Step 4: Add Liquidity
Use the XRPL CLI, Xaman’s AMM interface, or a third-party frontend (OnXRP, Sologenic) to submit an AMMDeposit transaction. The ledger mints LP tokens representing your share of the pool.
Step 5: Monitor and Withdraw
LP tokens accrue value as trading fees are collected. Withdraw with AMMWithdraw to receive your share of both tokens plus accumulated fees.
Impermanent Loss on XRPL AMM
Like all AMMs, XRPL AMM pools are subject to impermanent loss — the reduction in value of your LP position compared to simply holding both tokens, caused by price divergence between the two assets in the pool. The auction slot mechanism partially mitigates this by providing additional revenue and encouraging rapid arbitrage, but impermanent loss remains a real risk for volatile pairs.
Lower-volatility pairs (e.g., XRP/RLUSD stablecoin) have lower impermanent loss risk and are generally safer for new LPs.
Supported AMM Pairs
Any two assets on the XRP Ledger can form an AMM pool. As of 2026, the most liquid pools include:
- XRP/RLUSD: Ripple’s USD stablecoin — lowest volatility, most institutional interest
- XRP/SOLO: Sologenic governance token — high activity from the Sologenic community
- XRP/USD (Bitstamp): Bitstamp-issued USD IOU — deep liquidity from an established gateway
- XRP/BTC: Bitcoin IOU from XRPL gateways — enables BTC exposure within the XRPL ecosystem
Bottom Line
The XRPL AMM brings native automated market making to the XRP Ledger, with a unique auction slot mechanism that distributes additional revenue to liquidity providers. It integrates seamlessly with the ledger’s native order book DEX for best-execution routing. For XRP holders looking to earn yield beyond simple holding, providing liquidity to well-chosen XRPL AMM pools is an attractive option — though impermanent loss risk must be understood.
Disclaimer: DeFi and AMM liquidity provision involve significant risks including impermanent loss. This article is for informational purposes only.