CDR #045: Lokr | Token Price Feed

Proposals CDRs - Custom Delivery Requests
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INTRODUCTION

Protocol: Lokr

Website: www.Lokr.io

Integration: Lokr token price feed

Use case: the price oracle will be used to power an on-chain vault.

Blockchain: Ethereum, BNB Smart Chain and Polygon

REQUEST INFORMATION

Assets

The following assets will be included in the Oracle:

Asset Ticker Asset Blockchain Asset Address Asset Markets Overview Trades Aggregation Window Size
LOKR Ethereum 0x80ce…cdcf LOKR markets 120 sec

Methodology

  • Moving Average Price with Interquartile Range (MAIR) will be used to calculate the price for the asset. Learn more about it here
  • 0.5% deviation threshold for updates trigger will be applied
  • 120 sec trades aggregation window will be applied
  • 120 sec updates frequency check will be applied
  • The feed will be updated every 24h period if there are no deviation based updates

DELIVERY INFORMATION

  • Delivery method: Oracles on Ethereum, BNB Smart Chain and Polygon*
  • Testnet required: Yes

See delivery options

NOTES

Additional relevant information:

Learn more about DIA CDRs here

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Kindly deploy the LKR oracle on mainnet for Ethereum, Binance and Polygon.

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Thank you for requesting a data feed via DIA CDR. We confirm the CDR specifications were requested correctly. Find the oracle information below:

Oracle

The oracles are deployed and can be accessed here:

You can query for assets by calling the read function getValue() with parameters such as “LKR/USD”. It will return two values:

  1. The price of the asset queried with 8 decimals
  2. The unix timestamp of the last update

You can see Solidity and Vyper code integration examples here or use a dedicated DIA oracles integration library described in detail here.

Funding

Each deployed oracle has a separate gas wallet which is the only entity allowed to update oracle values based on selected parameters. To find out more information on how it works, visit the following link.

Please make sure to top up the gas wallet, as we only put in some gas to deploy and start the oracle.

Gas Wallet addresses:

Markets

You can view the markets included for each feed by pressing on a link to DIA App in the deployed assets list:

  1. Ethereum-0x80CE3027a70e0A928d9268994e9B85d03Bd4CDcf

Note: DIA uses Blockchain-Address querying formatting to ensure asset selection precision (token symbols might duplicate)

You can also query current asset prices and find other market information on the asset by using the DIA API as described here.

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