FAQ

    import "ifapricefeed-interface/IIfaPriceFeed.sol";

    IIfaPriceFeed constant ORACLE =
        IIfaPriceFeed(0xA9F17344689C2c2328F94464998db1d3e35B80dC); // Base Mainnet

    bytes32 constant USDT_ID =
        0x6ca0cef6107263f3b09a51448617b659278cff744f0e702c24a2f88c91e65a0d;

    function getUSDTPrice() external view returns (uint256) {
        (IIfaPriceFeed.PriceFeed memory info, bool exists) =
            ORACLE.getAssetInfo(USDT_ID);

        require(exists, "Not supported");
        require(block.timestamp - info.lastUpdateTime <= 3600, "Stale");

        return uint256(info.price) / 1e18; // human-readable price
    }

    use ifa_oracle::price_feed::{Self, IfaPriceFeed};
    use ifa_oracle::bytes32;

    public fun get_usdt_price(feed: &IfaPriceFeed): u256 {
        let asset_id = bytes32::new(
            x"6ca0cef6107263f3b09a51448617b659278cff744f0e702c24a2f88c91e65a0d"
        );

        let (price_feed, exists) = price_feed::get_asset_info(feed, asset_id);
        assert!(exists, 0);

        // Sui uses positive decimals — divide by 10^decimal
        // For decimal = 18: divide by 1_000_000_000_000_000_000
        price_feed::price(price_feed)
    }

    bytes32 assetId = keccak256(abi.encodePacked("USDT/USD"));

    // Solidity
    uint256 humanPrice = uint256(info.price) / 1e18;

    // JavaScript (EVM)
    const humanPrice = ethers.formatUnits(info.price, -info.decimal);

    // Move
    // price = 1_000_000_000_000_000_000, decimal = 18 → $1.00
    // Divide price by pow(10, decimal) for human-readable value

    // TypeScript (Sui)
    const humanPrice = Number(price) / Math.pow(10, decimal);

    bytes32[] memory ids = new bytes32[](3);
    ids[0] = USDT_ASSET_ID;
    ids[1] = CNGN_ASSET_ID;
    ids[2] = ZARP_ASSET_ID;

    (IIfaPriceFeed.PriceFeed[] memory infos, bool[] memory exists) =
        ORACLE.getAssetsInfo(ids);

    let (price_feeds, exists) = price_feed::get_assets_info(feed, asset_indexes);

    IIfaPriceFeed.DerivedPair memory pair = ORACLE.getPairbyId(
        CNGN_ASSET_ID,
        USDT_ASSET_ID,
        IIfaPriceFeed.PairDirection.Forward
    );

    let pair = price_feed::get_pair_by_id(feed, cngn_id, usdt_id, 0); // 0 = forward

    const { ethers } = require("ethers");

    const provider = new ethers.JsonRpcProvider("https://mainnet.base.org");
    const oracle   = new ethers.Contract(
      "0xA9F17344689C2c2328F94464998db1d3e35B80dC",
      ["function getAssetInfo(bytes32) view returns ((int256 price, int8 decimal, uint256 lastUpdateTime), bool exists)"],
      provider
    );

    const [info, exists] = await oracle.getAssetInfo(
      "0x6ca0cef6107263f3b09a51448617b659278cff744f0e702c24a2f88c91e65a0d"
    );

    const price = ethers.formatUnits(info.price, -info.decimal);
    console.log(`USDT/USD: $${price}`);

    npm install -g @ifalabs/mcp-server

    {
      "mcpServers": {
        "ifalabs": {
          "command": "ifa-mcp",
          "args": ["--network", "base-mainnet"]
        }
      }
    }