# CDR #079 Preon Finance I STAR Price Feed **URL:** \ **Category:** CDRs - Custom Delivery Requests\ **Tags:** lending, arbitrum, defi, token-price-feed\ **Created:** [December 21, 2023, 2:47pm UTC](https://forum.diadata.org/t/cdr-079-preon-finance-i-star-price-feed/907 "2023-12-21T14:47:22Z")\ **Posts on this page:** 2\ **Page:** 1
**Author:** ![pandu.eth](https://dub1.discourse-cdn.com/flex013/user_avatar/forum.diadata.org/pandu.eth/32/425_2.png) [@pandu.eth](https://forum.diadata.org/u/pandu.eth)\ **Post date:** [December 21, 2023, 2:47pm UTC](https://forum.diadata.org/t/cdr-079-preon-finance-i-star-price-feed/907/1 "2023-12-21T14:47:22Z")
21 December, 2023 # INTRODUCTION Protocol: Preon Finance Website: [https://www.preon.finance/](https://www.preon.finance/) Integration: Preon is a state-of-the-art decentralized lending protocol built on Arbitrum, allowing users to borrow up against their portfolio. The integration will provide Preon with real time pricing information for their native $STAR stablecoin. # REQUEST INFORMATION ## Assets Following assets will be included in the Oracle: | Asset Ticker | Asset Blockchain | Asset Address | Asset Markets Overview | | --- | --- | --- | --- | | STAR | Arbitrum | 0xC19669A405067927865B40Ea045a2baabbbe57f5 | [STAR Asset Information](https://www.diadata.org/app/price/asset/Arbitrum/0xC19669A405067927865B40Ea045a2baabbbe57f5/) | **Note:** Asset Specific Calling Convention ## Methodology - Moving Average Price with Interquartile Range (MAIR) will be used to calculate the price for the asset. - 0.5% deviation threshold for updates trigger will be applied - 120s trades aggregation window size will be applied - The feed will be updated every 24h period if there are no deviation based updates # DELIVERY INFORMATION Delivery Method: Oracle on Arbitrum Feeder Type: Asset Specific Calling Convention Is testnet deployment required?: No ---
**Author:** ![Samuel](https://dub1.discourse-cdn.com/flex013/user_avatar/forum.diadata.org/samuel/32/119_2.png) [@Samuel](https://forum.diadata.org/u/Samuel)\ **Post date:** [December 22, 2023, 1:57pm UTC](https://forum.diadata.org/t/cdr-079-preon-finance-i-star-price-feed/907/2 "2023-12-22T13:57:38Z")
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 oracle is deployed and can be accessed [here](https://arbiscan.io/address/0xFf69bA2770A3ED82C16aCCD97Da2C366b5da5653). The adapter for the Asset specific calling convention can be found [here](https://arbiscan.io/address/0x76D32eecCBa1d2C354d3E1AD845b61dab06B058c). The interface is described [in our documentation](https://docs.diadata.org/introduction/intro-to-dia-oracles/access-the-oracle/asset-specific-value-calling-convention). You can query for assets by calling the read function getValue() with parameters such as “STAR/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](https://docs.diadata.org/introduction/intro-to-dia-oracles/access-the-oracle#oracle-integration-example) or use a dedicated DIA oracles integration library described in detail [here](https://docs.diadata.org/introduction/intro-to-dia-oracles/access-the-oracle#accessing-dias-oracles-with-a-dedicated-solidity-library). ### 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](https://docs.diadata.org/introduction/intro-to-dia-oracles/oracle-funding). Please make sure to top up the gas wallet, as we only put in some gas to deploy and start the oracle. Gas Wallet address: [0x3386e08764c044ce407c70c836748e62419e6082](https://arbiscan.io/address/0x3386e08764c044ce407c70c836748e62419e6082) ### Markets You can view the markets included for each feed by pressing on a link to DIA App in the deployed assets list: 1. [Arbitrum-0xC19669A405067927865B40Ea045a2baabbbe57f5](https://app.diadata.org/price/asset/Arbitrum/0xC19669A405067927865B40Ea045a2baabbbe57f5/?asset=STAR) 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](https://docs.diadata.org/products/token-price-feeds/access-api-endpoints).