> ## 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.

# Sumer Money

> Compound V2 fork with multi-asset lending markets on Monad

<Info>
  **TVL:** \~\$4M | **Type:** Compound V2 Fork | **Docs:** [sumer.money](https://sumer.money)
</Info>

## Overview

Sumer Money is a Compound V2 fork deployed on Monad. It follows the proven cToken/Comptroller architecture with per-market supply and borrow rates determined by utilization-based interest rate models. Each market is independent with its own reserve factor and collateral factor.

## Functions

### getSumerMarkets()

Returns all active Sumer lending markets with current rates and liquidity.

**Returns** `SumerMarket[]`

| Field          | Type      | Description                                 |
| -------------- | --------- | ------------------------------------------- |
| `address`      | `string`  | cToken market contract address              |
| `asset`        | `string`  | Underlying token address                    |
| `supplyRate`   | `number`  | Current supply rate per second (annualized) |
| `borrowRate`   | `number`  | Current borrow rate per second (annualized) |
| `totalSupply`  | `bigint`  | Total cToken supply (raw)                   |
| `totalBorrows` | `bigint`  | Total borrows outstanding (raw)             |
| `protocol`     | `'sumer'` | Protocol identifier                         |

```typescript theme={null}
const markets = await sdk.getSumerMarkets()
// → [
//   {
//     address: '0x...',
//     asset: '0x...',
//     supplyRate: 0.041,
//     borrowRate: 0.068,
//     totalSupply: 3200000n,
//     totalBorrows: 1800000n,
//     protocol: 'sumer'
//   },
// ]
```

### getSumerTVL()

Returns total value locked across all Sumer markets in USD.

**Returns** `number`

```typescript theme={null}
const tvl = await sdk.getSumerTVL()
// → 4100000
```

## Usage Example

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

const sdk = new Rampart()

const markets = await sdk.getSumerMarkets()

// Compare supply vs borrow spread
for (const m of markets) {
  const spread = m.borrowRate - m.supplyRate
  console.log(`${m.asset}: supply ${(m.supplyRate * 100).toFixed(2)}%, borrow ${(m.borrowRate * 100).toFixed(2)}%, spread ${(spread * 100).toFixed(2)}%`)
}
```

## Contract Addresses

| Contract    | Address                                      |
| ----------- | -------------------------------------------- |
| Comptroller | `0xA0b3E538e9d2E66A04BEa2BEdff3a0F80fBB1da3` |