> For the complete documentation index, see [llms.txt](https://docs.river.inc/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.river.inc/outro/satusd-oracle/dia-oracle.md).

# DIA Oracle

DIA is a decentralized oracle platform supporting thousands of assets across 50+ blockchains. For satUSD, DIA delivers high-frequency, deviation-based price updates using their battle-tested DIAOracleV2 and AggregatorV3Interface-compatible adapters, ensuring compatibility with most DeFi protocols and aggregators.

## Oracle Configuration

The satUSD price feed uses the following configuration across all chains:

<table><thead><tr><th width="272.80078125">Parameter</th><th>Value</th><th data-hidden></th></tr></thead><tbody><tr><td>Pricing Method</td><td>MAIR (Moving Average with Interquartile Range)</td><td></td></tr><tr><td>Deviation Trigger</td><td>0.5%</td><td></td></tr><tr><td>Refresh Frequency</td><td>120 seconds</td><td></td></tr><tr><td>Heartbeat</td><td>24 hours</td><td></td></tr></tbody></table>

## How to Access On-Chain

### 1. DIAOracleV2

#### Contract Addresses

These are the main contracts to call for direct access to price data.

<table><thead><tr><th width="200.45703125">Chain</th><th>Contract Address</th><th data-hidden></th></tr></thead><tbody><tr><td>Ethereum</td><td><a href="https://etherscan.io/address/0xaca485dd4299090251422617f5938d324c85191b"><code>0xACa485Dd4299090251422617f5938d324C85191B</code></a></td><td></td></tr><tr><td>BNB Chain</td><td><a href="https://bscscan.com/address/0xbea082c15417716541d3169e7a48e4a53a19b5d1"><code>0xbea082c15417716541D3169e7a48e4A53A19B5D1</code></a></td><td></td></tr><tr><td>Base</td><td><a href="https://basescan.org/address/0x12B0B8bCd48ee30905DB5B0e181368Dda90eaF0B"><code>0x12B0B8bCd48ee30905DB5B0e181368Dda90eaF0B</code></a></td><td></td></tr><tr><td>Arbitrum</td><td><a href="https://arbiscan.io/address/0x009e01c47609dbff978cc76f40aebe8724492fe9"><code>0x009E01c47609dbFF978cc76F40aEBE8724492Fe9</code></a></td><td></td></tr><tr><td>BOB</td><td><a href="https://explorer.gobob.xyz/address/0xD8ba4Bf8d2b8Aa639fD0affd6fDF180D503ed458"><code>0xD8ba4Bf8d2b8Aa639fD0affd6fDF180D503ed458</code></a></td><td></td></tr></tbody></table>

#### Solidity: Using `getValue` from DIAOracleV2

```solidity
pragma solidity 0.8.29;

interface IDIAOracleV2 {
    function getValue(string memory key) external view returns (uint128, uint128);
}

contract OracleConsumer {

    address immutable ORACLE = 0xbea082c15417716541D3169e7a48e4A53A19B5D1; // BNB Chain

    function getSatUSDPrice() external view returns (uint128 price, uint128 timestamp) {
        (price, timestamp) = IDIAOracleV2(ORACLE).getValue("satUSD/USD");
        // Note: `price` has 8 decimals (e.g., 99882732 = $0.99882732)
    }
}
```

### 2. Adapter Contracts (Chainlink-Compatible)

For protocols expecting a Chainlink-style interface via AggregatorV3Interface.

#### Contract Addresses

<table><thead><tr><th width="200.45703125">Chain</th><th>Contract Address</th><th data-hidden></th></tr></thead><tbody><tr><td>Ethereum</td><td><a href="https://etherscan.io/address/0x02eabd9c59fca5b38e5a415e6172f93bf30fb2af"><code>0x02eaBD9c59fCa5B38E5A415e6172F93BF30fB2af</code></a></td><td></td></tr><tr><td>BNB Chain</td><td><a href="https://bscscan.com/address/0x1082679a55fB34B967a006080204b597CfA0605C"><code>0x1082679a55fB34B967a006080204b597CfA0605C</code></a></td><td></td></tr><tr><td>Base</td><td><a href="https://basescan.org/address/0x4ae9a0a4c02ec4ffb7f231717df85d755192884a"><code>0x4aE9A0a4c02Ec4ffb7F231717DF85D755192884A</code></a></td><td></td></tr><tr><td>Arbitrum</td><td><a href="https://arbiscan.io/address/0x6f076AddEf5e393F23988B0f61b02d0297022fa4"><code>0x6f076AddEf5e393F23988B0f61b02d0297022fa4</code></a></td><td></td></tr><tr><td>BOB</td><td><a href="https://explorer.gobob.xyz/address/0x230057c84fACFC5358C500E5348E16D4D7Dc60f8"><code>0x230057c84fACFC5358C500E5348E16D4D7Dc60f8</code></a></td><td></td></tr></tbody></table>

#### Solidity: Use DIA’s adapter contracts via the `AggregatorV3Interface` interface:

```solidity
interface AggregatorV3Interface {
    function latestRoundData() external view returns (
        uint80 roundID,
        int256 answer,
        uint256 startedAt,
        uint256 updatedAt,
        uint80 answeredInRound
    );
}
```