DIA is a cross-chain oracle provider that sources granular market data from diverse exchanges, including CEXs and DEXs. Its data sourcing is thorough, enabling unparalleled transparency and customizability for resilient price feeds for 20,000+ assets. Its versatile data processing and delivery ensures adaptability and reliability for any decentralized application.

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Oracle details

ChainAddress
Mainnet0x4845890f8d7b4A0b29759271929B0FCF672aEED6

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Oracle configuration

Pricing MethodologyVWAP
Deviation (%) & Refresh Frequency0.5% and 120 seconds
Heartbeat24h

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Asset feeds

Asset TickergetValue(key)Asset Markets
USDTUSDT/USDUSDT markets
USDCUSDC/USDUSDC markets
BTCBTC/USDBTC markets
ETHETH/USDETH markets
stETHstETH/USDstETH markets
AZEROAZERO/USDAZERO markets
ARBARB/USDARB markets

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How to access data

To consume price data, you’ll need to invoke the getValue method on the oracle contract which you can access through the DIA Oracle library or the interface. Below is an example of a contract consuming data from our oracle on Aleph Zero mainnet. If you pass BTC/USD as the key, it will return the most recent price of BTC in USD with 8 decimal places (e.g. 9601458065403 is $96,014.58065403) along with the Unix timestamp of the last price update. 
pragma solidity ^0.8.13;

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

contract DIAOracleV2Consumer{

    address immutable ORACLE = 0x4845890f8d7b4A0b29759271929B0FCF672aEED6;

    function getPrice(string memory key)
    external
    view
    returns (
        uint128 latestPrice,
        uint128 timestampOflatestPrice
    ) {
        (latestPrice, timestampOflatestPrice) =
                 IDIAOracleV2(ORACLE).getValue(key);
    }
}
See the full example here.

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Support

For developer assistance, connect with the DIA team directly on Discord or Telegram. Developers seeking other specialized, production-grade oracle with tailored price feeds and configurations can initiate the request by contacting the DIA BD Team via Telegram.