cetus-dlmm-sdk-skill

name	cetus-dlmm-sdk-skill
description	Guides users on how to use the Cetus DLMM TypeScript SDK for liquidity management, trading operations, and fee calculations. Use this skill when users need to operate Cetus DLMM liquidity pools, manage positions, execute swaps, or calculate price fees.

Cetus DLMM TypeScript SDK Usage Guide

Overview

Cetus DLMM (Dynamic Liquidity Market Maker) SDK v2 provides comprehensive tools for interacting with Cetus Protocol's DLMM on Sui blockchain. The SDK supports liquidity management, pool operations, swaps, and position management with multiple strategy types.

Quick Start

Installation

npm install @cetusprotocol/dlmm-sdk

SDK Initialization

Option 1: Use default mainnet configuration

import { CetusDlmmSDK } from '@cetusprotocol/dlmm-sdk'

const sdk = CetusDlmmSDK.createSDK()

Option 2: Specify network environment

// For mainnet
const sdk = CetusDlmmSDK.createSDK({ env: 'mainnet' })

// For testnet
const sdk = CetusDlmmSDK.createSDK({ env: 'testnet' })

Option 3: Use custom gRPC endpoint

const sdk = CetusDlmmSDK.createSDK({ 
  env: 'mainnet',
  full_rpc_url: 'YOUR_GRPC_ENDPOINT' 
})

Option 4: Use custom SuiClient

import { SuiClient } from '@mysten/sui/client'

const suiClient = new SuiClient({ url: 'grpc://fullnode.mainnet.sui.io:443' })
const sdk = CetusDlmmSDK.createSDK({ env: 'mainnet', sui_client: suiClient })

Set Sender Address

const wallet = 'YOUR_WALLET_ADDRESS'
sdk.setSenderAddress(wallet)

Update RPC URL

const new_rpc_url = 'YOUR_NEW_FULL_NODE_URL'
sdk.updateFullRpcUrl(new_rpc_url)

Core Concepts

Differences between DLMM and Traditional AMM

DLMM (Dynamic Liquidity Market Maker) is Cetus Protocol's next-generation AMM protocol. Compared with traditional CLMM (Concentrated Liquidity Market Maker), it has the following characteristics:

1. Bin System: Uses discrete bins instead of continuous ticks
2. Dynamic Liquidity: Liquidity automatically rebalances within price ranges
3. Multi-Strategy Support: Three strategy types: Spot, BidAsk, and Curve
4. Fee Optimization: Variable fee mechanism and protocol fee separation

Bin System and Bin Step

• Bin: Discrete price intervals, each with independent liquidity
• Bin Step: Price interval between bins (expressed in basis points)
• Bin ID: Unique identifier, the price relationship can be calculated via BinUtils

Three Strategy Types

1. Spot Strategy: Spot strategy, suitable for providing liquidity around the current price
2. BidAsk Strategy: Bid-ask strategy, suitable for market makers
3. Curve Strategy: Curve strategy, automatically adjusts liquidity distribution

Fee Structure

• Base Fee: Fixed fee rate
• Variable Fee: Dynamically adjusted based on market volatility
• Protocol Fee: Portion of fees collected by the protocol
• Partner Fee: Fee sharing for referred partners

Default Fee Options

The SDK provides predefined fee configurations for different types of trading pairs:

const dlmmDefaultFeeOptions = [
  { binStep: 1, baseFactor: 10000, fee: '0.0001' },
  { binStep: 1, baseFactor: 20000, fee: '0.0002' },
  { binStep: 2, baseFactor: 15000, fee: '0.0003' },
  { binStep: 2, baseFactor: 20000, fee: '0.0004' },
  { binStep: 5, baseFactor: 10000, fee: '0.0005' },
  { binStep: 10, baseFactor: 10000, fee: '0.001' },
  { binStep: 15, baseFactor: 10000, fee: '0.0015' },
  { binStep: 20, baseFactor: 10000, fee: '0.002' },
  { binStep: 25, baseFactor: 10000, fee: '0.0025' },
  { binStep: 30, baseFactor: 10000, fee: '0.003' },
  { binStep: 50, baseFactor: 8000, fee: '0.004' },
  { binStep: 80, baseFactor: 7500, fee: '0.006' },
  { binStep: 100, baseFactor: 8000, fee: '0.008' },
  { binStep: 100, baseFactor: 10000, fee: '0.01' },
  { binStep: 200, baseFactor: 10000, fee: '0.02' },
  { binStep: 400, baseFactor: 10000, fee: '0.04' }
]

Fee Tier Recommendations:

• Low fees (0.01% - 0.05%): Best for stable pairs or low-volatility mainstream assets
• Medium fees (0.1% - 0.3%): Suitable for medium-volatility assets or mainstream trading pairs
• High fees (0.4% - 4%): Recommended for high-volatility assets, altcoins, or small market cap pairs

Core Operations

1. Pool Operations

Get Pool Information

// Get all pools
const pools = await sdk.Pool.getPools()

// Get specific pool
const pool = await sdk.Pool.getPool(pool_id)

// Get specific pools by their IDs
const assign_pools = await sdk.Pool.getAssignPoolList([
  '0x...',
])

// Get bin information
const bin_info = await sdk.Pool.getBinInfo(pool_id, bin_id, bin_step)

// Get pool bin information
const pool_bin_info = await sdk.Pool.getPoolBinInfo(pool_id)

// Get bin step configurations
const bin_step_configs = await sdk.Pool.getBinStepConfigs()

// Get pool transaction list
const pool_transactions = await sdk.Pool.getPoolTransactionList({
  pool_id: '0x...',
  pagination_args: { limit: 10 }
})

Create Pool

Method 1: Create Pool Only

const bin_step = 2
const base_factor = 10000
const price = '1.1'
const active_id = BinUtils.getBinIdFromPrice(price, bin_step, true, 6, 6)

const tx = new Transaction()
await sdk.Pool.createPoolPayload({
  active_id,
  bin_step,
  coin_type_a: '0x...::usdc::USDC',
  coin_type_b: '0x...::usdt::USDT',
  base_factor,
}, tx)

Method 2: Create Pool and Add Liquidity in One Transaction

const bin_infos = sdk.Position.calculateAddLiquidityInfo({
  active_id,
  bin_step,
  lower_bin_id: active_id - 10,
  upper_bin_id: active_id + 10,
  amount_a_in_active_bin: '0',
  amount_b_in_active_bin: '0',
  strategy_type: StrategyType.Spot,
  coin_amount: '10000000',
  fix_amount_a: true,
})

const createAndAddTx = await sdk.Pool.createPoolAndAddLiquidityPayload({
  active_id,
  lower_bin_id: active_id - 10,
  upper_bin_id: active_id + 10,
  bin_step,
  bin_infos,
  coin_type_a: '0x...::usdc::USDC',
  coin_type_b: '0x...::eth::ETH',
  strategy_type: StrategyType.Spot,
  use_bin_infos: false,
  base_factor,
})

2. Position Operations

Get Position Information

// Get owner's position list
const positions = await sdk.Position.getOwnerPositionList(wallet)

// Get specific position
const position = await sdk.Position.getPosition(position_id)

Add Liquidity

Step 1: Calculate liquidity distribution

const calculateOption = {
  pool_id: '0x...',
  amount_a: '1000000',
  amount_b: '1200000',
  active_id: 100,
  bin_step: 2,
  lower_bin_id: 90,
  upper_bin_id: 110,
  amount_a_in_active_bin: '0',
  amount_b_in_active_bin: '0',
  strategy_type: StrategyType.Spot
}
const bin_infos = await sdk.Position.calculateAddLiquidityInfo(calculateOption)

Step 2: Create transaction payload for new position

const addOption = {
  pool_id,
  bin_infos,
  coin_type_a: '0x...::usdc::USDC',
  coin_type_b: '0x...::usdt::USDT',
  lower_bin_id: 90,
  upper_bin_id: 110,
  active_id: 100,
  strategy_type: StrategyType.Spot,
  use_bin_infos: false,
  max_price_slippage: 0.01,
  bin_step: 2
}
const tx = sdk.Position.addLiquidityPayload(addOption)

Add Liquidity to Existing Position

const addOption = {
  pool_id,
  bin_infos,
  coin_type_a,
  coin_type_b,
  active_id,
  position_id,
  collect_fee: true,
  reward_coins: [],
  strategy_type: StrategyType.Spot,
  use_bin_infos: false,
  max_price_slippage: 0.01,
  bin_step,
}
const tx = sdk.Position.addLiquidityPayload(addOption)

Add Liquidity with Price

const addOption = {
  pool_id,
  bin_infos,
  coin_type_a: pool.coin_type_a,
  coin_type_b: pool.coin_type_b,
  price_base_coin: 'coin_a',
  price: price.toString(),
  lower_price,
  upper_price,
  bin_step,
  amount_a_in_active_bin: amounts_in_active_bin?.amount_a || '0',
  amount_b_in_active_bin: amounts_in_active_bin?.amount_b || '0',
  strategy_type: StrategyType.Spot,
  decimals_a: 6,
  decimals_b: 6,
  max_bin_slippage: 0.01,
  active_id,
  use_bin_infos: false,
}
const tx = sdk.Position.addLiquidityWithPricePayload(addOption)

Remove Liquidity

// Calculate removal amounts
const calculateOption = {
  bins: liquidity_shares_data.bins,
  active_id,
  fix_amount_a: true,
  coin_amount: '100000'
}
const bin_infos = sdk.Position.calculateRemoveLiquidityInfo(calculateOption)

// Build and send transaction
const removeOption = {
  pool_id,
  bin_infos,
  coin_type_a: pool.coin_type_a,
  coin_type_b: pool.coin_type_b,
  position_id,
  active_id,
  slippage: 0.01,
  reward_coins: [],
  collect_fee: true,
  bin_step,
  remove_percent: 0.5,
}
const tx = sdk.Position.removeLiquidityPayload(removeOption)

Close Position

// Close position (This will collect all fees, rewards and remove all liquidity)
const tx = sdk.Position.closePositionPayload({
  pool_id,
  position_id,
  coin_type_a,
  coin_type_b,
  reward_coins: pool.reward_manager.rewards.map(reward => reward.reward_coin)
})

// Simulate or send the transaction
const sim_result = await sdk.FullClient.sendSimulationTransaction(tx, wallet)

3. Fee Operations

Fee and Reward Calculation

// First get the pool information
const pool = await sdk.Pool.getPool(pool_id)
const { id, coin_type_a, coin_type_b, reward_manager } = pool

// Fetch fee and reward data
const { feeData, rewardData } = await sdk.Position.fetchPositionFeeAndReward([
  {
    pool_id: id,
    position_id: position_id,
    reward_coins: reward_manager.rewards.map((reward) => reward.reward_coin),
    coin_type_a,
    coin_type_b,
  },
])

Fee Rate Calculations

// Get total fee rate for a pool
const totalFeeRate = await sdk.Pool.getTotalFeeRate({
  pool_id,
  coin_type_a,
  coin_type_b
})

// Get variable fee from pool parameters
const variableFee = FeeUtils.getVariableFee(pool.variable_parameters)

FeeUtils Utility Methods

import { FeeUtils, d, FEE_PRECISION } from '@cetusprotocol/dlmm-sdk'

// Get variable fee
const variableFee = FeeUtils.getVariableFee(pool.variable_parameters)
const variableFeePercentage = d(variableFee).div(d(FEE_PRECISION)).toString()

// Calculate composition fee
const compositionFee = FeeUtils.calculateCompositionFee(amount, total_fee_rate)

// Calculate protocol fee
const protocolFee = FeeUtils.calculateProtocolFee(fee_amount, protocol_fee_rate)

// Get protocol fees for both tokens
const { protocol_fee_a, protocol_fee_b } = FeeUtils.getProtocolFees(fee_a, fee_b, protocol_fee_rate)

// Get composition fees
const { fees_a, fees_b } = FeeUtils.getCompositionFees(active_bin, used_bin, variableParameters)

Fee and Reward Collection

// Build collect fee and reward transaction
const tx = await sdk.Position.collectRewardAndFeePayload([{
  pool_id,
  position_id,
  reward_coins: reward_manager.rewards.map((reward) => reward.reward_coin),
  coin_type_a,
  coin_type_b
}])

// Simulate or send the transaction
const sim_result = await sdk.FullClient.sendSimulationTransaction(tx, wallet)

4. Swap Operations

// Get pool information
const pool = await sdk.Pool.getPool(pool_id)
const { coin_type_a, coin_type_b } = pool

// Get swap quote
const quote_obj = await sdk.Swap.preSwapQuote({
  pool_id,
  a2b: true, // true for A to B, false for B to A
  by_amount_in: true, // true for exact input, false for exact output
  in_amount: '2000000',
  coin_type_a,
  coin_type_b
})

// Build and send swap transaction
const tx = sdk.Swap.swapPayload({
  coin_type_a,
  coin_type_b,
  quote_obj,
  by_amount_in: true,
  slippage: 0.01
})

5. Partner Operations

// Get partner list
const partnerList = await sdk.Partner.getPartnerList()

// Get specific partner
const partner = await sdk.Partner.getPartner(partner_id)

// Create partner
const start_time = Math.floor(Date.now() / 1000) + 5000
const tx = sdk.Partner.createPartnerPayload({
  name: 'test partner',
  ref_fee_rate: 0.01,
  start_time,
  end_time: start_time + 9 * 24 * 3600,
  recipient: account,
})

// Update referral fee rate
const updateFeeTx = await sdk.Partner.updateRefFeeRatePayload({
  partner_id: '0x..',
  ref_fee_rate: 0.02,
})

// Claim ref fee
const tx = await sdk.Position.claimRefFeePayload({
  partner_id: "0x..",
  partner_cap_id: "0x..",
  fee_coin_types: [coin_type]
})

6. Reward Operations

// Initialize rewards for a pool
const initTx = sdk.Reward.initRewardPayload({
  pool_id,
  reward_coin_types: ['0x2::sui::SUI', '0x5::usdc::USDC']
})

// Add reward to a pool
const addRewardTx = sdk.Reward.addRewardPayload({
  pool_id,
  reward_coin_type: '0x2::sui::SUI',
  reward_amount: '1000000',
  end_time_seconds: Math.floor(Date.now() / 1000) + 30 * 24 * 3600,
  start_time_seconds: Math.floor(Date.now() / 1000) + 3600,
})

// Update reward access (public/private)
const accessTx = sdk.Reward.updateRewardAccessPayload({
  pool_id,
  type: 'to_public',
})

7. Configuration Management

// Get global DLMM configuration
const globalConfig = await sdk.Config.getDlmmGlobalConfig()

// Get bin step configuration list
const binStepConfigs = await sdk.Config.getBinStepConfigList(pool_id)

// Fetch all SDK configurations
const sdkConfigs = await sdk.Config.fetchDlmmSdkConfigs()

// Get reward period emission data
const rewardEmission = await sdk.Reward.getRewardPeriodEmission(
  reward_manager_id,
  reward_period,
  current_time
)

8. BinUtils Operations

import { BinUtils } from '@cetusprotocol/dlmm-sdk'

// Convert price to bin ID
const binId = BinUtils.getBinIdFromPrice('1040.07', 2, true, 6, 9)

// Convert bin ID to price
const price = BinUtils.getPriceFromBinId(-4787, 2, 6, 9)

// Get Q price from bin ID
const q_price = BinUtils.getQPriceFromId(-4400, 100)

// Get price per lamport from Q price
const price_per_lamport = BinUtils.getPricePerLamportFromQPrice(q_price)

// Get liquidity from amounts
const liquidity = BinUtils.getLiquidity('0', '266666', '18431994054197767090')

// Get amount A from liquidity
const amountA = BinUtils.getAmountAFromLiquidity('4101094304427826916657468', '18461505896777422276')

// Get amount B from liquidity
const amountB = BinUtils.getAmountBFromLiquidity('4919119455159831291232256')

// Split bin liquidity info
const split_bin_infos = BinUtils.splitBinLiquidityInfo(bin_infos, 0, 70)

// Get position count between bin ranges
const positionCount = BinUtils.getPositionCount(-750, 845)

// Find min/max bin ID for a given bin step
const { minBinId, maxBinId } = BinUtils.findMinMaxBinId(10)

9. Advanced Operations

Validate Active ID Slippage

const isValid = await sdk.Position.validateActiveIdSlippage({
  pool_id,
  active_id,
  max_bin_slippage: 0.01
})

Update Position Fee and Rewards

await sdk.Position.updatePositionFeeAndRewards({
  pool_id,
  position_id,
  coin_type_a,
  coin_type_b
})

Usage Workflow

Cetus DLMM SDK Usage Progress:
- [ ] Step 1: Install SDK and initialize
- [ ] Step 2: Understand core concepts (Bin, strategy types, fee structure)
- [ ] Step 3: Select operation type (add liquidity, swap, position management, etc.)
- [ ] Step 4: Prepare parameters (amount, price range, strategy type configuration)
- [ ] Step 5: Call SDK functions to get transaction data
- [ ] Step 6: Simulate transaction to verify feasibility
- [ ] Step 7: Execute transaction and monitor status
- [ ] Step 8: Verify results and handle exceptions

Troubleshooting

Common Issues

1. Transaction Simulation Failures

// Always simulate transactions before sending
const simResult = await sdk.FullClient.sendSimulationTransaction(tx, wallet)
if (simResult.effects.status.status === 'failure') {
  console.error('Transaction simulation failed:', simResult.effects.status.error)
}

2. Insufficient Gas Budget

// Set appropriate gas budget for complex operations
tx.setGasBudget(10000000000) // 10 SUI

3. Active Bin Range Validation

const amounts_in_active_bin = await sdk.Position.getActiveBinIfInRange(
  pool.bin_manager.bin_manager_handle,
  lower_bin_id,
  upper_bin_id,
  active_id,
  bin_step
)

4. Price Slippage Protection

const isValid = await sdk.Position.validateActiveIdSlippage({
  pool_id,
  active_id,
  max_bin_slippage: 0.01
})

Debugging Tips

1. Use printTransaction to debug transaction details
2. Always verify pool state before operations
3. Parse and validate position liquidity shares
4. Test with small amounts first

Resources

• Cetus Protocol Documentation
• GitHub Repository
• @cetusprotocol/dlmm-sdk on npm

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Note: This guide is based on Cetus DLMM SDK v2. SDK updates may cause API changes; please refer to the latest official documentation.