Tangible | USDR Token Price Feed


Protocol: Tangible

Integration: Tangible is an ecosystem for tokenized real world assets. Utilizing Real USD, a native yield stablecoin backed by real estate, the protocol offers users access to tokenized and fractionalized RWAs through their marketplace.


Following assets will be included in the Oracle:

Asset Ticker Asset Blockchain Asset Address Asset Markets Overview Trades Aggregation Window Size Comments
USDR Polygon 0x65c…977f 0xa13…3e1F 120 sec USDR Curve 3pool


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


Delivery Method - Oracle on Polygon network
Is testnet deploy required? - No
Delivery Estimate - 7-10 days

Additional relevant information:
Additional markets/ pools shall be added when TVL approx. >4mn.
Additional pools may benefit from a longer trade aggregation window size. Additions/ changes in methodology and parameters will be noted in the CDR.

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


The oracle is deployed and can be accessed here.

You can query for assets by calling the read function getValue() with parameters such as “BTC/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.


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 address: 0x9a9f5ffbbff7d8d5bc1717e70e15c6a7a5491b5a


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

  1. Polygon-0xb5DFABd7fF7F83BAB83995E72A52B97ABb7bcf63

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.