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RedStone on Monad

Push oracle

RedStone deploys Chainlink-compatible price feed contracts on Monad. Prices are pushed on-chain (0.5% deviation or 6h heartbeat). Just call latestRoundData() — no special SDK needed.

ETH/USD0xc44be6D00307c3565FDf753e852Fc003036cBc13

import { createPublicClient, http, parseAbi } from "viem";

// RedStone on Monad uses Chainlink-compatible interface
const abi = parseAbi([
  "function latestRoundData() view returns (uint80, int256, uint256, uint256, uint80)",
  "function decimals() view returns (uint8)",
]);

const client = createPublicClient({
  chain: { id: 10143, name: "Monad", nativeCurrency: { name: "MON", symbol: "MON", decimals: 18 }, rpcUrls: { default: { http: ["https://rpc.monad.xyz"] } } },
  transport: http(),
});

// RedStone ETH/USD on Monad
const address = "0xc44be6D00307c3565FDf753e852Fc003036cBc13";

const [roundData, decimals] = await Promise.all([
  client.readContract({ address, abi, functionName: "latestRoundData" }),
  client.readContract({ address, abi, functionName: "decimals" }),
]);

const [, answer, , updatedAt] = roundData;
const price = Number(answer) / 10 ** decimals;
console.log(`ETH/USD: $${price}`);
console.log(`Updated: ${new Date(Number(updatedAt) * 1000)}`);

Live on-chain callrpc.monad.xyz

eth_call → ETH/USD

POST https://rpc.monad.xyz
{
  "jsonrpc": "2.0",
  "method": "eth_call",
  "params": [
    {
      "to": "0xc44be6D00307c3565FDf753e852Fc003036cBc13",
      "data": "0xfeaf968c"
    },
    "latest"
  ],
  "id": 1
}