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.

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Oracle Details

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	1	n_bfb76eab37bf8c84359d6552a1d96a309e030b71.dia-oracle
mainnet01	2	n_bfb76eab37bf8c84359d6552a1d96a309e030b71.dia-oracle
mainnet01	4	n_bfb76eab37bf8c84359d6552a1d96a309e030b71.dia-oracle
testnet04	4	n_bfb76eab37bf8c84359d6552a1d96a309e030b71.dia-oracle

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Chainweb EVM Testnet 20

Network ID	Chain ID	DIA Contract Address
chain20	5920	0x2e034f073ee95db83b5498b90a53dd9b26525355

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Oracle Configuration

Parameter	Value
Pricing Methodology	VWAPIR
Deviation (%) & Refresh Frequency	0.5% and 120 seconds
Heartbeat	24h

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Asset Feeds

The Kadena oracle includes the following price feeds. Use the Query Symbol as a parameter in the get-value (or getValue for chainweb EVM) function to receive the latest price information for any of these assets.

Asset	Query Symbol	Sources Overview
Bitcoin (BTC)	BTC/USD	BTC Sources
USD Coin (USDC)	USDC/USD	USDC Sources
Staked ETH (stETH)	STETH/USD	stETH Sources
Ether (ETH)	ETH/USD	ETH Sources
Wrapped Bitcoin (WBTC)	WBTC/USD	WBTC Sources
Moonbeam (GLMR)	GLMR/USD	GLMR Sources
Optimism (OP)	OP/USD	OP Sources
DIA Token (DIA)	DIA/USD	DIA Sources
Arbitrum (ARB)	ARB/USD	ARB Sources
Binance Coin (BNB)	BNB/USD	BNB Sources
Avalanche (AVAX)	AVAX/USD	AVAX Sources
Celo Dollar (CUSD)	CUSD/USD	CUSD Sources
Kadena (KDA)	KDA/USD	KDA Sources
Gnosis (GNO)	GNO/USD	GNO Sources
Wrapped Ether (WETH)	WETH/USD	WETH Sources

Learn more about DIA’s data sourcing and data computation architecture.

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How to Access Data

Locate one of the deployed contracts (either testnet or mainnet) and call the get-value (or getValue for chainweb EVM) 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:

1. The price of the asset, with 8 decimals.
2. The timestamp of the last update in Unix time format, in UTC timezone.

You can also refer to the Solidity guide for detailed steps on fetching price data from the oracle in your EVM contract.

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Oracle Grants Program

The DIA Oracle Grants Program provides zero-cost oracle access for up to 1 year, covering deployment and update costs to accelerate dApp development on Kadena. Learn more about the grant here:

DIA Oracle Grants Program | Apply Now

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Request a Custom Oracle

DIA offers highly customizable oracles that are individually tailored to each dApp’s needs. Each oracle can be customized in the following ways, including:

• Data Sources & Asset Feeds
• Pricing Methodologies
• Update Triggers (Frequency, Deviation, Heartbeat, …etc)

Get a tailored oracle for your dApp, request one below:

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Support

For developer assistance, connect with the DIA team directly on Discord or Telegram.