> ## Documentation Index
> Fetch the complete documentation index at: https://docs.rampartlabs.xyz/llms.txt
> Use this file to discover all available pages before exploring further.

# Capricorn

> Uniswap V3 fork with native Monad optimizations

<Info>
  **Type:** Uniswap V3 Fork | **Docs:** [capricorn.exchange](https://capricorn.exchange)
</Info>

## Overview

Capricorn is a Uniswap V3 fork deployed natively on Monad. It uses identical pool mechanics to Uniswap V3 (concentrated liquidity, tick-based pricing) but with a separate factory and router. Capricorn tends to have deeper liquidity for Monad-native tokens that may not have established pools on Uniswap.

<Note>
  Like Uniswap V3, Capricorn's QuoterV2 is not a view function. The SDK uses `simulateContract` for all quote operations - do not use `readContract` directly.
</Note>

## Functions

### getCapricornPools()

Returns all active Capricorn liquidity pools on Monad.

**Returns**

| Field          | Type      | Description                        |
| -------------- | --------- | ---------------------------------- |
| `poolAddress`  | `Address` | Pool contract address              |
| `token0`       | `Address` | First token address                |
| `token1`       | `Address` | Second token address               |
| `fee`          | `number`  | Fee tier in bps (500, 3000, 10000) |
| `sqrtPriceX96` | `bigint`  | Current sqrt price Q64.96          |
| `liquidity`    | `bigint`  | Active liquidity                   |
| `tick`         | `number`  | Current tick                       |

```typescript theme={null}
import { getCapricornPools } from 'rampart-monad'

const pools = await getCapricornPools()
console.log(`${pools.length} Capricorn pools`)

// Find pools for a specific token
const monPools = pools.filter(p =>
  p.token0 === '0x...' || p.token1 === '0x...'
)
console.log(`MON pools: ${monPools.length}`)
```

***

### getCapricornPrice()

Returns the spot price for a token pair across the best available Capricorn pool.

**Parameters**

| Name     | Type      | Description          |
| -------- | --------- | -------------------- |
| `tokenA` | `Address` | Input token address  |
| `tokenB` | `Address` | Output token address |

**Returns** `number`. price of tokenA denominated in tokenB.

```typescript theme={null}
import { getCapricornPrice } from 'rampart-monad'

const price = await getCapricornPrice(
  '0x...', // MON
  '0x...'  // USDC
)
console.log(`1 MON = ${price} USDC on Capricorn`)
```

<CodeGroup>
  ```typescript Arbitrage Check theme={null}
  import { getCapricornPrice, getUniswapPrice } from 'rampart-monad'

  const [capricorn, uniswap] = await Promise.all([
    getCapricornPrice('0x...', '0x...'),
    getUniswapPrice('0x...', '0x...')
  ])

  const spreadBps = Math.abs(capricorn - uniswap) / uniswap * 10000
  if (spreadBps > 10) {
    console.log(`Arb opportunity: ${spreadBps.toFixed(1)} bps spread`)
  }
  ```

  ```typescript Pool Discovery theme={null}
  import { getCapricornPools } from 'rampart-monad'

  const pools = await getCapricornPools()
  const deepPools = pools
    .filter(p => p.liquidity > 1_000_000_000n)
    .sort((a, b) => Number(b.liquidity - a.liquidity))

  console.log('Top pools by liquidity:', deepPools.slice(0, 3))
  ```
</CodeGroup>

## Contract Addresses

| Contract | Address                                      |
| -------- | -------------------------------------------- |
| Factory  | `0x6A1E0A0B03d2EC1C4A4D09FC1856F4Dba5862e7D` |