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I would like to get the historical Gas (Gwei) price in hourly or minutely with safelow, Standard, fast and fastest. I am aware of the etherscan.io which gives avg gas price for a day and also ethstation which gives realtime data. I am able to get the real-time from https://www.etherchain.org/tools/gasPriceOracle. Is there a way where i can get historical prices?

1

You can follow this website they have provided their API as well click here

and you can get a lot of other detailed information as well

0

The closest you can get is using this graph of historical gas prices.

Unless somebody has been storing the data you are asking for in a database, you will not be able to retrieve it. You can, however, run the same algorithm that ethgasstation.info uses on the graph above and interpolate the data, if desired.

0

You can get the historical data from the Chainlink Price feeds fast gas proxy contract if you wanted to pull from an on-chain record.

You can see the history right in the contract

/** This example code is designed to quickly deploy an example contract using Remix.
 */

pragma solidity ^0.6.7;

import "https://github.com/smartcontractkit/chainlink/blob/master/evm-contracts/src/v0.6/interfaces/AggregatorV3Interface.sol";

contract HistoricalPriceConsumerV3 {

    AggregatorV3Interface internal priceFeed;
    
    /**
     * Network: Mainnet
     * Aggregator: Fast Gas / Gwei Price
     * Address: 0x169E633A2D1E6c10dD91238Ba11c4A708dfEF37C
     */
    constructor() public {
        priceFeed = AggregatorV3Interface(0x169E633A2D1E6c10dD91238Ba11c4A708dfEF37C);
    }

    /**
     * Returns historical price for a round id.
     * roundId is NOT incremental. Not all roundIds are valid.
     * You must know a valid roundId before consuming historical data.
     *
     * ROUNDID VALUES:
     *    InValid:      18446744073709562300
     *    Valid:        18446744073709562301
     *    
     * @dev A timestamp with zero value means the round is not complete and should not be used.
     */
    function getHistoricalPrice(uint80 roundId) public view returns (int256) {
        (
            uint80 id, 
            int price,
            uint startedAt,
            uint timeStamp,
            uint80 answeredInRound
        ) = priceFeed.getRoundData(roundId);
        require(timeStamp > 0, "Round not complete");
        return price;
    }
}

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