DEV Community: LumosCore

How to Create an AMM Liquidity Pool on XRPL: A Step-by-Step Guide

LumosCore — Fri, 30 Oct 2026 13:03:02 +0000

The XRP Ledger (XRPL) is widely known for its fast transactions and low network fees. But beyond sending payments and trading tokens, XRPL also supports decentralized liquidity pools through its native Automated Market Maker (AMM).

For token creators, liquidity pools make it possible to establish a trading market for an asset. For liquidity providers, they offer an opportunity to earn a share of trading fees.

And you don’t need to write smart contracts or understand complex blockchain development to participate.

In this guide, we’ll explain how XRPL liquidity pools work, how to create one using LumosCore, and what you should consider before depositing your assets.

What Is an AMM Liquidity Pool on XRPL?

An Automated Market Maker (AMM) is a decentralized trading mechanism that allows users to exchange assets through pools of liquidity instead of relying entirely on traditional buy and sell orders.

Each liquidity pool contains two assets.

For example, an XRP/RLUSD pool holds both XRP and RLUSD. When someone swaps XRP for RLUSD, the transaction interacts with the pool’s reserves.

The pool uses a mathematical formula to determine the exchange rate based on the available liquidity.

People who deposit assets into the pool are called liquidity providers (LPs). In return for their contribution, they receive LP tokens representing their share of the pool.

When traders use the AMM, trading fees accrue to the pool and benefit liquidity providers according to their ownership share.

Unlike some DeFi networks where AMMs depend on separate smart contracts, XRPL includes AMM functionality directly in its protocol.

Why Would You Create a Liquidity Pool?

There are several reasons to create or participate in an XRPL liquidity pool.

1. Establish a trading market

If you’ve launched a token on XRPL, a liquidity pool can give traders a way to exchange it against XRP or another supported asset.

2. Earn trading fees

Liquidity providers receive a proportional benefit from the trading fees collected by the pool. Earnings depend on trading activity, pool ownership, and market conditions.

3. Support market liquidity

More liquidity can reduce price impact and make trading more practical, particularly for larger transactions.

4. Participate in ecosystem incentives

Some liquidity pools may qualify for additional rewards from ecosystem projects, depending on their eligibility requirements.

However, providing liquidity involves risks, and trading-fee income is never guaranteed.

Before You Start: What You’ll Need

Before creating a liquidity pool, make sure you have:

An XRPL-compatible wallet, such as Xaman or Gem wallet.
Enough XRP to cover transaction costs and account reserves.
Both assets you want to contribute to the pool.

You should also check whether an AMM pool already exists for your chosen asset pair. XRPL allows only one native AMM for a particular pair, so an existing pool should be joined rather than recreated.

How to Create a Liquidity Pool on XRPL Using LumosCore

Step 1: Open LumosCore’s XRPL Pools
Visit LumosCore XRPL Liquidity Pools.

The Pools interface lets you explore available liquidity pools, compare market activity, and manage your own liquidity positions.

Connect your XRPL wallet and make sure you’re using the correct network.

LumosCore operates as a non-custodial interface, meaning your private keys remain in your wallet and transactions require your approval.

Step 2: Select Create Pool

On the XRPL Pools page, choose Create Pool.

This opens the pool creation interface, where you can select the two assets you want to pair.

For example:

Asset 1: XRP
Asset 2: LUMOS

If an AMM for that pair already exists, you can provide liquidity to the existing pool instead.

Step 3: Choose Your Initial Liquidity Amounts

Next, enter how much of each asset you want to deposit.

Your initial deposit establishes the pool’s starting price.

Let’s say you’re creating a pool with:

0.000538 XRP
17.328272 LUMOS

This sets an initial ratio of 0.000031 XRP/LUMOS

That ratio is important.

If your initial price differs significantly from the broader market, arbitrage traders may quickly trade against the pool to correct the difference.

As a result, you could lose value from your initial deposit.

Tip: Compare your intended opening price with relevant market prices before creating the pool.

Step 4: Review the Trading Fee and Transaction Details

Before confirming, review the transaction carefully.

Pay particular attention to:

The selected asset pair
The amount of each token being deposited
Network transaction costs and reserve requirements

Creating a new native XRPL AMM requires a special network transaction cost that is higher than the standard XRP transfer fee.

Your wallet may also need sufficient XRP for trustlines and the LP tokens associated with your position.

LumosCore does not charge a separate platform fee for creating or managing liquidity pool positions. Network-level costs still apply.

Step 5: Create the Pool and Approve the Transaction

Once you’ve reviewed everything, choose Create Pool & Add Liquidity.

Your wallet will request transaction approval.

Review the details and sign using your connected wallet.

After successful confirmation on the XRP Ledger, the AMM pool is created, your initial assets are deposited, and you receive LP tokens representing your ownership share.

You can now locate the pool through LumosCore and monitor your position.

What Happens After You Create a Pool?

Your work doesn’t necessarily end after creating the pool.

Other traders can interact with its liquidity, and additional users may contribute their own assets.

As trades occur, the pool’s asset balances change.

The AMM adjusts exchange rates according to its reserves, while fees accumulate for liquidity providers.

You can monitor your liquidity position through LumosCore and withdraw liquidity when you choose, subject to the network’s transaction requirements and the assets currently available in the pool.

The amounts you withdraw may differ from those you originally deposited.

Understanding the Risks of Liquidity Providing

Liquidity pools can earn trading fees, but they aren’t risk-free.

Impermanent loss

When the prices of the two assets move relative to each other, your liquidity position may become worth less than simply holding those assets separately.

Token volatility

Providing liquidity to highly volatile tokens can increase exposure to rapid market movements.

Low trading activity

A pool with limited trading volume may generate very little fee income.

Issuer and asset risks

An XRPL-issued token may carry issuer-related risks, including freezing or transfer restrictions, depending on the asset’s configuration.

Before contributing meaningful liquidity, understand both assets and the potential downside.

Final Thoughts

Creating a liquidity pool on XRPL is no longer something that requires advanced blockchain development skills.

With XRPL’s native AMM functionality and interfaces like LumosCore, users can establish trading pairs, contribute liquidity, and manage their positions directly from their wallets.

But the most important step isn’t clicking Create Pool. It’s understanding the assets you’re pairing, setting a reasonable initial price, and recognizing the risks of liquidity provision.

Ready to explore XRPL liquidity pools?

Create or provide liquidity on LumosCore.

Crypto Swap Fees Explained: On-Chain & Cross-Chain

LumosCore — Tue, 27 Oct 2026 10:19:18 +0000

You choose a token, enter an amount, and see a small fee beside the swap button. Looks reasonable. But when the transaction finishes, the amount received is lower than you expected.

Where did the difference go?
A swap can involve several costs, and they do not always appear as separate charges. Some pay for blockchain transactions. Others pay liquidity providers or services moving assets between networks. The exchange rate itself can also affect what reaches your wallet.

Understanding these differences makes it easier to compare quotes, avoid unnecessary steps, and keep more of what you trade. It starts with looking beyond the headline fee.

First, what kind of swap are you making?

A same-chain swap exchanges one asset for another within a single blockchain. Swapping XLM for USDC on Stellar is one example. The tokens change, but the network stays the same.

A cross-chain swap changes the network as well. You might start with an asset on Stellar and receive a different asset on another blockchain. Depending on the route, that can involve a swap before the transfer, a swap afterwards, or both.

Bridging can also move the same asset between networks without changing its denomination. Moving USDC between supported chains, for example, does not necessarily require exchanging it for another token.

That distinction matters because every additional operation can affect the final cost.

The costs behind a same-chain swap

Start with the network fee: the amount paid to process your transaction. This is separate from any trading fee charged by the application or underlying protocol. Its size depends on the blockchain, transaction complexity, and current conditions.

On some networks, an initial token approval may require another transaction before the swap. That approval can have its own network cost. It is not a universal requirement, so check what your wallet actually asks you to sign.

Then there is the cost of accessing liquidity. A liquidity pool may charge a percentage of the amount traded. An interface may apply a separate platform fee. A route using multiple pools can incur fees at more than one step.

These charges may already be reflected in the quoted output. Subtracting them again would make the trade look more expensive than it really is.

The exchange rate deserves your attention

Two quotes with identical fees can still deliver different amounts.

Price impact is the change in price caused by your own trade. If the amount you want to swap is large relative to available liquidity, your order can move through increasingly less favourable prices. A cheap transaction on a shallow market can therefore produce an expensive result.

Slippage is different: it is the difference between the price quoted and the price at execution. Conditions can change while your transaction is pending.

Your slippage tolerance sets how much unfavourable movement you are willing to accept. Setting it to 1% does not mean you automatically pay an extra 1% fee. It allows execution within that limit; it does not guarantee the original quote.

Before chasing a lower fee, check whether the exchange rate gives you a better outcome.

Practical Example: How Much Does a $1,000 Crypto Swap Actually Cost?

In this hypothetical example, a $1,000 swap comes with a $2 trading fee, a $0.10 network fee, and $1.50 in price impact. That's an estimated total cost of $3.60, leaving approximately $996.40 in value received.
Now consider another route offering a lower trading fee but significantly less liquidity. Even with a cheaper advertised fee, greater price impact could leave you receiving less. That's why the final quoted amount matters more than any individual fee.

What changes when you cross chains?

Moving between networks adds another layer of work. A bridge, messaging service, or liquidity provider must help deliver assets to the destination.

Depending on the route, you may encounter a bridge fee, a relayer charge, destination execution costs, or additional trading fees. Some routes combine these into the quote. Others require a separate payment or claim transaction.

For example, a destination claim may need the receiving network’s native token for gas. If you arrive with only a stablecoin, you could still need another asset before completing the process.

LumosCore’s published bridge guidance illustrates this distinction: its CCTP route requires a destination claim transaction, while its LayerZero route includes delivery through an executor funded by a messaging fee. Different routes have different cost structures.

The useful question is whether the quote covers the entire journey to usable funds.

Trading and bridging with LumosCore

Once you understand the different costs behind a swap, comparing routes becomes easier. Look at what you will receive, which charges are already included, and whether anything remains payable on the destination network.

LumosCore brings same-chain trading and cross-chain transfers into one interface, with a straightforward 0.2% platform fee for trades and bridge transfers. Hold at least 250,000 LUMOS, and that drops to 0.1%—a 50% reduction in platform fees.

That keeps the platform charge low while giving you access to trading and bridging in one place. Network fees, liquidity-provider or bridge-provider charges, and price impact can still affect the overall cost, depending on your route.

Whether you are swapping within a network or moving assets across chains, focus on the complete quote. A low platform fee matters, and knowing exactly what you receive helps you make a better decision.

Explore trading and cross-chain swaps at Lumoscore Bridge