> For the complete documentation index, see [llms.txt](https://cetus-1.gitbook.io/cetus-developer-docs/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://cetus-1.gitbook.io/cetus-developer-docs/developer/via-sdk-v2/sdk-modules/cetusprotocol-dlmm-sdk/create-pool.md).

# Create Pool

## 1. Default Fee Options

The SDK provides predefined fee configurations for different types of trading pairs. These configurations are optimized based on asset volatility and market characteristics:

* **`binStep`**: The step size between bins, determining the price granularity of the pool. Smaller values provide finer price resolution but require more computational resources.
* **`baseFactor`**: A multiplier used in fee calculations, affecting the overall fee structure of the pool.
* **`fee`**: The trading fee rate as a decimal (e.g., '0.0001' = 0.01%). This is the fee charged for each swap transaction.

**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

| Base fee | Bin Step | Base factor |
| -------- | -------- | ----------- |
| 0.01%    | 1        | 10,000      |
| 0.02%    | 1        | 20,000      |
| 0.03%    | 2        | 15,000      |
| 0.04%    | 2        | 20,000      |
| 0.05%    | 5        | 10,000      |
| 0.10%    | 10       | 10,000      |
| 0.15%    | 15       | 10,000      |
| 0.20%    | 20       | 10,000      |
| 0.25%    | 25       | 10,000      |
| 0.30%    | 30       | 10,000      |
| 0.40%    | 50       | 8,000       |
| 0.60%    | 80       | 7,500       |
| 0.80%    | 100      | 8,000       |
| 1.00%    | 100      | 10,000      |
| 2.00%    | 200      | 10,000      |
| 4.00%    | 400      | 10,000      |

When creating a new pool, choose the fee configuration that best matches your trading pair's characteristics:

```
// Example: Create a pool for a stable pair (USDC/USDT)
const stablePairConfig = { binStep: 1, baseFactor: 10000, fee: '0.0001' }

// Example: Create a pool for a volatile altcoin pair
const altcoinConfig = { binStep: 100, baseFactor: 10000, fee: '0.01' }
```

## **2. Create Pool**

There are two ways to create a pool:

**Method 1: Create Pool Only**

```typescript
// Create a new pool without adding liquidity
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**

```typescript
// Create pool and add liquidity in one transaction
const bin_step = 2
const base_factor = 10000
const price = '1.1'
const active_id = BinUtils.getBinIdFromPrice(price, bin_step, true, 6, 6)

// Calculate liquidity distribution
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: '0x14a71d857b34677a7d57e0feb303df1adb515a37780645ab763d42ce8d1a5e48::usdc::USDC',
  coin_type_b: '0x14a71d857b34677a7d57e0feb303df1adb515a37780645ab763d42ce8d1a5e48::eth::ETH',
  strategy_type: StrategyType.Spot,
  use_bin_infos: false,
  base_factor,
})
```


---

# Agent Instructions
This documentation is published with GitBook. GitBook is the documentation platform designed so that both humans and AI agents can read, navigate, and reason over technical content effectively. Learn more at gitbook.com.

## Querying This Documentation
If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter, and the optional `goal` query parameter:

```
GET https://cetus-1.gitbook.io/cetus-developer-docs/developer/via-sdk-v2/sdk-modules/cetusprotocol-dlmm-sdk/create-pool.md?ask=<question>&goal=<endgoal>
```

`ask` is the immediate question: it should be specific, self-contained, and written in natural language.
`goal` is optional and describes the broader end goal you are ultimately trying to accomplish on behalf of the user. GitBook uses it to tailor the answer towards what is most useful for that goal.

The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.