MetaMask 钱包现已集成 Coinbase 的第 2 层网络 Base

For some time now, the famous MetaMask crypto wallet also supports Base, which is the layer-2 of Ethereum developed by Coinbase. 

一段时间以来，著名的 MetaMask 加密钱包也支持 Base，这是由 Coinbase 开发的以太坊第 2 层。

However, in order to use Base in MetaMask, you need to manually activate this network.

但是，为了在 MetaMask 中使用 Base，您需要手动激活该网络。

Coinbase layer-2: Adding Base to the MetaMask crypto wallet

When you open your MetaMask wallet, in the settings menu you will find a dedicated section specifically for the various supported networks. 

Coinbase 第 2 层：将 Base 添加到 MetaMask 加密钱包当您打开 MetaMask 钱包时，在设置菜单中，您将找到专门针对各种支持网络的专用部分。

The default network is obviously Ethereum, but there are also others that are not activated by default. 

默认网络显然是以太坊，但也有其他网络默认未激活。

To activate Base, simply search for it and check the status column. 

要激活 Base，只需搜索它并检查状态栏即可。

If the Base network is not found in that list, it is necessary to add it manually, using the “Add Network” or “Custom RPC” functionality.

如果在该列表中找不到基本网络，则需要使用“添加网络”或“自定义 RPC”功能手动添加它。

To add and activate it, you need to enter the details of the Base network, namely the network name (Base), the URL, the chain ID (8453), the symbol of its native currency (ETH), and the block explorer URL.

要添加并激活它，您需要输入Base网络的详细信息，即网络名称（Base）、URL、链ID（8453）、其本机货币（ETH）的符号和区块浏览器URL 。

At that point, all you have to do is save, and you will receive confirmation from MetaMask that the Base network has been successfully added to your wallet. 

此时，您所要做的就是保存，您将收到来自 MetaMask 的确认，表明 Base 网络已成功添加到您的钱包中。

Note that by default MetaMask only supports Ethereum, so any other network needs to be activated in this way, even though the main ones are already available and to activate them you just need to check the status column on the networks page in the wallet settings. 

请注意，默认情况下，MetaMask 仅支持以太坊，因此任何其他网络都需要以这种方式激活，即使主要网络已经可用，并且要激活它们，您只需检查钱包设置中网络页面上的状态列。

However, there is still an official guide available that shows all these steps with screenshots. 

但是，仍然有一个官方指南可用，其中通过屏幕截图显示了所有这些步骤。

Beyond Coinbase Base: Ethereum layer-2 in MetaMask crypto wallet

MetaMask is a crypto wallet specifically designed to manage transactions on Ethereum, so it’s not surprising that many of the networks that have been added over time are Ethereum layer-2 networks. 

超越 Coinbase Base：MetaMask 加密钱包中的以太坊第 2 层MetaMask 是专门为管理以太坊上的交易而设计的加密钱包，因此随着时间的推移添加的许多网络都是以太坊第 2 层网络也就不足为奇了。

Moreover, after the Dencun update on March 13th, the average cost of fees on Ethereum’s layer-2 has literally collapsed, while on layer-1 (i.e. the Ethereum blockchain) it has remained substantially unchanged. 

此外，在 3 月 13 日 Dencun 更新之后，以太坊第 2 层的平均费用成本实际上已经崩溃，而第 1 层（即以太坊区块链）的平均费用成本基本保持不变。

For example, on Arbitrum, the most used layer-2 of Ethereum, it now only takes about a thousandth of a dollar to have a transaction approved in a few seconds. 

例如，在以太坊最常用的第 2 层 Arbitrum 上，现在只需要大约千分之一美元即可在几秒钟内批准一笔交易。

On Base instead, about 3 are needed, which are however in line for example with the costs on Lightning Network, which however does not record on-chain transactions. 

相反，在 Base 上，大约需要 3 个，但这与闪电网络的成本一致，但闪电网络不记录链上交易。

Base was born only last year, while for example Arbitrum has been around for almost three years. 

Base 去年才诞生，而 Arbitrum 已经存在近三年了。

It should also be noted that layer-2 solutions are a relatively recent development, so much so that Polygon, for example, has only been around for less than 4 years. 

还应该指出的是，第 2 层解决方案是一个相对较新的发展，以至于 Polygon 等只出现了不到 4 年。

It is now clear that the solution to Ethereum’s scalability problem lies in layer-2 solutions, or rollups as they are often called, and Base is among the solutions adopted by Coinbase to address in particular the issue of high fees, especially on smaller transactions. 

现在很明显，以太坊可扩展性问题的解决方案在于第 2 层解决方案，或者通常称为的 Rollups，而 Base 是 Coinbase 采用的解决方案之一，旨在解决高费用问题，尤其是小额交易。

Base and Coinbase

Coinbase is the largest US crypto exchange, and its services are specifically aimed at the average user, or the masses. 

Base 和 CoinbaseCoinbase 是美国最大的加密货币交易所，其服务专门针对普通用户或大众。

Actually, over the years it has also opened an exchange aimed at institutional investors, called Coinbase Prime, but it is quite different from the original exchange which has always had retail users as its main users. 

事实上，这些年来它也开设了一个针对机构投资者的交易所，名为Coinbase Prime，但与原来一直以散户用户为主要用户的交易所有很大不同。

For this reason, it certainly manages not only transactions of significant entities, but also many transactions of small entities, on which the fees are likely to weigh heavily. 

因此，它当然不仅管理重要实体的交易，还管理许多小型实体的交易，这些费用可能会产生很大的影响。

Last year, when they launched Base, fees were still relatively high even on Ethereum’s layer-2, because Dencun had not yet occurred. It is not certain that at that time it was possible to imagine that after this update the fees on some of Base’s competitors would have dropped to such an extent. 

去年他们推出 Base 的时候，即使在以太坊的 Layer-2 上，费用仍然比较高，因为当时还没有出现 Dencun。不确定当时是否可以想象，在这次更新之后，Base 的一些竞争对手的费用会下降到这样的程度。

Furthermore, if Ethereum is a decentralized network, we cannot be certain of the same thing regarding layer-2. So maybe Coinbase has chosen to prefer using a layer-2 created by itself, rather than one created by others and with a lower level of security than Ethereum. 

此外，如果以太坊是一个去中心化网络，我们就无法确定第 2 层的情况。因此，也许 Coinbase 选择更喜欢使用自己创建的 Layer-2，而不是由其他人创建且安全级别低于以太坊的 Layer-2。

For example, in the DeFi sector Base managed to reach almost one and a half billion dollars of TVL, while Arbitrum exceeds 3 billion.

例如，在 DeFi 领域，Base 的 TVL 达到了近 1.5 亿美元，而 Arbitrum 则超过 30 亿美元。

Among the layer-2s of Ethereum Arbitrum is clearly the most used at the moment, but Base has risen to second place in terms of TVL, surpassing Polygon and Optimism, both at 1 billion dollars. 

在以太坊的 Layer-2 中，Arbitrum 显然是目前使用最多的，但 Base 在 TVL 方面已升至第二位，超过了 Polygon 和 Optimism，均为 10 亿美元。

So Base is performing quite well, surpassed only by Arbitrum. 

所以 Base 的表现相当不错，仅次于 Arbitrum。

The Base network also does not have its own native token, so all tokens claiming to be such are scams. 

Base 网络也没有自己的原生代币，因此所有声称是这样的代币都是骗局。

It should not be forgotten that Coinbase is a publicly traded company, and its shares are available on the Nasdaq with the ticker COIN. 

不要忘记，Coinbase 是一家上市公司，其股票在纳斯达克上市，股票代码为 COIN。

The MetaMask wallet

MetaMask is one of the most widely used crypto wallets in the world, especially for Ethereum and its main layer-2 solutions. 

MetaMask 钱包MetaMask 是世界上使用最广泛的加密钱包之一，特别是对于以太坊及其主要的第 2 层解决方案。

It was even launched in 2016, the year after the launch of Ethereum. 

它甚至于 2016 年推出，即以太坊推出后的第二年。

Its success is also due primarily to its browser extension, which allows you to easily and directly connect your crypto wallet to various websites and dApps. 

它的成功主要归功于它的浏览器扩展，它允许您轻松直接地将您的加密钱包连接到各种网站和 dApp。

This is a non-custodial wallet, meaning that the user is the owner and exclusive custodian of the seed and all tokens.

这是一个非托管钱包，意味着用户是种子和所有代币的所有者和独家托管人。

Among the wallets used as a browser extension, it is certainly the most used, although for other uses it has now been surpassed by other solutions, such as hardware wallets. 

在用作浏览器扩展的钱包中，它无疑是使用最多的，尽管在其他用途​​方面，它现在已被其他解决方案（例如硬件钱包）超越。

Consensys created it and still manages it today. 

Consensys 创建了它，并且至今仍在管理它。

Consensys is definitely one of the most important crypto companies in the world in the Ethereum field, if not the most important after the Ethereum Foundation, which is however a foundation. 

Consensys 绝对是以太坊领域世界上最重要的加密公司之一，即使不是继以太坊基金会之后最重要的公司，但以太坊基金会只是一个基金会。

Its founder is Joseph Lubin, co-founder of Ethereum itself. 

它的创始人是约瑟夫·鲁宾（Joseph Lubin），以太坊本身的联合创始人。

Although MetaMask is not the official Ethereum wallet, also because there is no real official Ethereum wallet, it is probably the closest thing to it. 

虽然 MetaMask 不是官方的以太坊钱包，也因为没有真正的官方以太坊钱包，但它可能是最接近它的东西。