Agent Skills: Cetus DLMM TypeScript SDK Usage Guide

Cetus DLMM TypeScript SDK Usage Guide

Quick Start

Installation

npm install @cetusprotocol/dlmm-sdk

SDK Initialization

Cetus DLMM SDK provides multiple initialization methods:

Method 1: Use default configuration (Mainnet)

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

const sdk = CetusDlmmSDK.createSDK({ env: 'mainnet' })
sdk.setSenderAddress(walletAddress)

Method 2: Use Testnet

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

Method 3: Custom Configuration

const sdk = CetusDlmmSDK.createCustomSDK({
  env: 'mainnet',
  // Custom configuration parameters
})

Method 4: Set Sender Address

sdk.setSenderAddress('0xYourWalletAddress')

Basic Configuration

• Network Selection: mainnet or testnet
• Wallet Address: Must set sender address to execute transactions
• RPC Configuration: Supports custom RPC endpoints

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

Key Feature Overview

Liquidity Management

Provides complete functionality for adding, removing, and managing liquidity. Supports three strategy types and flexible price range settings.

Detailed Guide: See Liquidity Management Guide for:

• Complete add liquidity workflow
• Applicable scenarios and configuration for different strategies
• Real examples based on add_liquidity_spot.test.ts

Swap Operations

Execute token swaps, supporting exact input/output modes and slippage protection.

Detailed Guide: See Swap Operations Guide for:

• Usage examples of preSwapQuote() and swapPayload()
• Slippage protection and fee calculations
• Transaction verification and error handling

Position Management

Manage position lifecycle, including opening positions, adding/removing liquidity, closing positions, and fee collection.

Detailed Guide: See Position Management Guide for:

• Usage examples of open_position() and close_position()
• Batch fee collection with collectRewardAndFeePayload()
• Complete workflow based on PositionModule

Pool Management

Create and manage DLMM pools, configure fee structures and strategy parameters.

Detailed Guide: See Pool Management Guide for:

• Parameter configuration for createPoolPayload()
• Fee rate and strategy type settings
• Pool information queries and status monitoring

Utility Functions

Provides utility functions for price calculations, fee calculations, and liquidity calculations.

Detailed Reference: See Utility Functions Reference for:

• BinUtils: Price-to-Bin ID conversion, sqrt price calculations
• FeeUtils: Fee calculations, protocol fee distribution

Cetus DLMM SDK Usage Workflow

Copy this checklist and track progress:

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

Operation Selection Workflow

1. Determine Your Needs

Need to provide liquidity? → Select "Liquidity Management" workflow Need to execute a trade? → Select "Swap Operations" workflow Need to manage existing positions? → Select "Position Management" workflow Need to create a new pool? → Select "Pool Management" workflow

2. Liquidity Management Workflow

1. Refer to Liquidity Management Guide
2. Select appropriate strategy type (Spot/BidAsk/Curve)
3. Use BinUtils to calculate price range
4. Call calculateAddLiquidityInfo() to calculate liquidity distribution
5. Create and execute transaction

3. Swap Operations Workflow

1. Refer to Swap Operations Guide
2. Get pre-swap quote with preSwapQuote()
3. Set appropriate slippage protection
4. Execute swap transaction with swapPayload()
5. Verify transaction results

4. Other Workflows

Refer to the respective detailed guides for complete guidance.

Frequently Asked Questions

1. How to handle transaction failures?

• Check parameters: Ensure all parameter formats are correct
• Verify balance: Confirm wallet has sufficient balance to pay transaction fees
• Simulate transaction: Use FullClient.sendSimulationTransaction() to pre-execute transaction
• Check errors: Examine console error messages and transaction status

2. How to optimize Gas costs?

• Batch operations: Use batch functions like collectRewardAndFeePayload()
• Set reasonable Gas budget: Set appropriate Gas budget based on operation complexity
• Choose off-peak hours: Execute transactions during non-congested network times
• Use testnet: Validate operations on testnet first

3. How to set price slippage protection?

• Set max_price_slippage parameter: Typically set to 0.01 (1%)
• Real-time price check: Check current price before execution
• Use validateActiveIdSlippage(): Validate active Bin ID slippage

4. How to choose strategy types?

• Spot strategy: Suitable for around current price, liquidity concentration
• BidAsk strategy: Suitable for market making, larger bid-ask spread
• Curve strategy: Suitable for automatic adjustment, wider price range

Next Steps

Further Learning

• View Complete Example Code for end-to-end usage scenarios
• Learn Advanced Strategies to optimize liquidity provision
• Explore API Reference for detailed function descriptions

Practical Projects

1. Create a small liquidity position on testnet
2. Execute a token swap operation
3. Try collecting position fees and rewards
4. Create a custom DLMM pool configuration

Resource Links

• Cetus Protocol Official Documentation
• GitHub Repository

Note: This guide is based on Cetus DLMM SDK v1.0.3. SDK updates may cause API changes; please refer to the latest official documentation.