> ## 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.

# Upshift

> Yield aggregator vaults that route deposits to the highest-APY opportunities on Monad

<Info>
  **Type:** Yield Aggregator Vaults | **Docs:** [upshift.finance](https://upshift.finance)
</Info>

## Overview

Upshift deploys ERC4626-compatible vaults that automatically route deposited assets to the best available yield source on Monad. Each vault focuses on a single underlying asset and rebalances between lending protocols, LSTs, and liquidity positions to maximize APY.

The vault registry is the central contract used to enumerate all deployed Upshift vaults on Monad.

## Types

```typescript theme={null}
type UpshiftVault = {
  address: `0x${string}`
  asset: `0x${string}`        // underlying token (MON, USDC, etc.)
  apy: number                  // current annualized yield, e.g. 0.12 = 12%
  totalAssets: bigint
  strategy: string             // human-readable strategy description
  protocol: 'upshift'
}
```

## Functions

### getUpshiftVaults()

Returns all Upshift vaults from the on-chain registry.

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

const sdk = new Rampart()
const vaults = await sdk.getUpshiftVaults()
// → UpshiftVault[]

vaults.forEach(v => {
  console.log(`${v.address}: ${(v.apy * 100).toFixed(2)}% APY - ${v.strategy}`)
})
```

### getUpshiftTVL()

Returns the total assets under management across all Upshift vaults in USD.

```typescript theme={null}
const tvl = await sdk.getUpshiftTVL()
// → number (USD)

console.log(`Upshift TVL: $${(tvl / 1e6).toFixed(2)}M`)
```

### getBestUpshiftVault(asset?)

Returns the Upshift vault with the highest current APY. Optionally filter by underlying asset address.

```typescript theme={null}
// Best vault across all assets
const best = await sdk.getBestUpshiftVault()
// → UpshiftVault

// Best vault for a specific asset
const bestMON = await sdk.getBestUpshiftVault('0x...')
// → UpshiftVault | null

console.log(`Best vault: ${best.address} @ ${(best.apy * 100).toFixed(2)}% APY`)
```

## Contract Addresses

| Contract      | Address                                      |
| ------------- | -------------------------------------------- |
| VaultRegistry | `0x7ADf95e0a67B7d1c3E4C2e2b6f7d3Bf5e2F3D8aA` |