# Storage Contract methods

You need to find or deploy the corresponding endpoint to get the data feed. For example, for the **ETHUSDC** pair on the Sepolia testnet, the current address is `0x3fdf540bee3dd5cd5009d9bc6f6978370cee3a7e`. This address might change in the future since the endpoints are still under continuous development. Check the addresses of the active endpoints on the [corresponding page](https://diffusefi.gitbook.io/docs/using-data-feeds/active-endpoints).

## decimals

`decimals()(uint8)`

Returns the precision parameter of the endpoint.

`Usage example:`

```
cast call --rpc-url=https://eth-sepolia.g.alchemy.com/v2/%ALCHEMY_KEY% 0x3fdf540bee3dd5cd5009d9bc6f6978370cee3a7e 'decimals()(uint8)'
```

## description

`description()(string)`

Meta info about the endpoint.

`Usage example:`

```
cast call --rpc-url=https://eth-sepolia.g.alchemy.com/v2/%ALCHEMY_KEY% 0x3fdf540bee3dd5cd5009d9bc6f6978370cee3a7e 'description()(string)'
```

## `latestAnswer`

`latestAnswer()(uint256)`

Returns short data for the latest round.

`Usage example:`

```
cast call --rpc-url=https://eth-sepolia.g.alchemy.com/v2/%ALCHEMY_KEY% 0x3fdf540bee3dd5cd5009d9bc6f6978370cee3a7e 'latestAnswer()(uint256)'
```

## latestRound

`latestRound()(uint256)`

Returns the index number of the latest round.

`Usage example:`

```
cast call --rpc-url=https://eth-sepolia.g.alchemy.com/v2/%ALCHEMY_KEY% 0x3fdf540bee3dd5cd5009d9bc6f6978370cee3a7e 'latestRound()(uint256)'
```

## getRoundData

`getRoundData(uint80 _roundId) returns (uint80 roundId, uint256 answer, uint256 startedAt, uint256 updatedAt, uint80 answeredInRound)`

Returns full data for the round by index.

`Usage example:`

```
cast call --rpc-url=https://eth-sepolia.g.alchemy.com/v2/%ALCHEMY_KEY% 0x3fdf540bee3dd5cd5009d9bc6f6978370cee3a7e 'getRoundData(uint80 _roundId) returns (uint80 roundId, uint256 answer, uint256 startedAt, uint256 updatedAt, uint80 answeredInRound)'
```

## latestRoundData

`latestRoundData()(uint80, uint256, uint256, uint256, uint80)`

Returns full data for the latest round.

`Usage example:`

```
cast call --rpc-url=https://eth-sepolia.g.alchemy.com/v2/%ALCHEMY_KEY% 0x3fdf540bee3dd5cd5009d9bc6f6978370cee3a7e 'latestRoundData()(uint80, uint256, uint256, uint256, uint80)'
```