Kadena Price Oracles
dApps built on Kadena can leverage DIA oracles to access up-to-date asset price information. These deployed oracles are designed for production environments.
Introduction to DIA
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.
Information on Usage of DIA Oracles on Kadena
DIA Oracles on Kadena are open source, and their source code is available in this repository. dApps built on Kadena can leverage DIA oracles to access up-to-date asset price information. These deployed oracles are designed for production environments and come with a predefined list of supported assets and settings.
If dApps require a custom oracle with different assets and configurations, please contact DIA on Telegram.
Deployed contracts
As Kadena allows for several chains in parallel, it is important to retrieve the price from the correct chain. Currently, DIA oracles are deployed on these chains:
| Network ID | Chain ID | DIA Contract Identifier |
|---|---|---|
mainnet01 | 4 |
|
testnet04 | 4 |
|
How to access DIA oracles?
Locate one of the deployed contracts (either testnet or mainnet) and call the get-value function. This function expects one parameter, which is the symbols of the asset you want to retrieve and a “/USD”, so for example for the Bitcoin price the parameter must be “BTC/USD”.
This will return two values:
The price of the asset, with 8 decimals.
The timestamp of the last update in Unix time format, in UTC timezone.
Included price feeds
The Kadena oracle includes the following price feeds. Use the Query Symbol as a parameter in the get-value function to receive the latest price information for any of these assets.
Asset | Query Symbol | Sources Overview |
Bitcoin (BTC) | BTC/USD | |
USD Coin (USDC) | USDC/USD | |
Staked ETH (stETH) | STETH/USD | |
Ether (ETH) | ETH/USD | |
Wrapped Bitcoin (WBTC) | WBTC/USD | |
Moonbeam (GLMR) | GLMR/USD | |
Optimism (OP) | OP/USD | |
DIA Token (DIA) | DIA/USD | |
Arbitrum (ARB) | ARB/USD | |
Binance Coin (BNB) | BNB/USD | |
Avalanche (AVAX) | AVAX/USD | |
Celo Dollar (CUSD) | CUSD/USD | |
Kadena (KDA) | KDA/USD | |
Gnosis (GNO) | GNO/USD | |
Wrapped Ether (WETH) | WETH/USD |
Learn more about DIA’s data sourcing and data computation architecture.
Oracle configuration settings
Methodology: VWAPIR
The final price point for each asset is calculated by computing the assets' trade information across multiple DEXs and CEXs. This is done using a Volume Weighted Average Price with Interquartile Range (VWAPIR) methodology.
Update frequency: 0.5% deviation + 24-hour heartbeat
Each asset is updated every two minutes, if the new price deviates from the old one by more than 0.5%. Additionally, a heartbeat of 24 hours is applied, which means that each price is updated at least once per day even if it moves by less than 0.5%.
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.
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