What is the ERC20 Token?

Hey guys, the term today we want to discuss here is a well-known topic. You may have heard about the ERC20 token. At the same time, some of you may have participated in such ICOs. So the question is What is the ERC20 Token

Some ICOs like Tezos and Filecoin collected millions from crowdfunding. Respectively, $232 and $252 million.

However, did anyone of you ever think about what exactly the ERC20 token is? Where it comes from? Is this token the only way to raise millions of funds?

I think, very few of you may have thought about it. Moreover, you have come here to know about it. And this is the only reason you are reading this article.

So, here we go:

What is the ERC20 Token?

The ERC20 token is a solely designed protocol standard for Ethereum Network. It is used to issue tokens on Ethereum Network.

Here, you may want to know then Why ‘ERC20’? Why this abbreviation mean?

The ERC refers to or stands for the abbreviation of Ethereum Request for Comments. And 20 stands for or refers to a unique ID number, which will differ this standard from others.

Like the HTTP protocol, ERC20 is also a protocol for the Ethereum network. Therefore, the Ethereum community has created 3 optional and six mandatory rules. What is the ERC20 Token


  • Token
  • Symbol
  • Decimal (up to 18)


  • totalSupply
  • Balanceoff
  • transfer
  • TransferFrom
  • approve
  • allowance

Where it came from?

On November 19, 2015, Fabian Vogelsteller first proposed a form of ERC20 token. At that time ERC20 shortlisted some rules about the implementation of Ethereum tokens. Those rules also describe how the developers will be given the ability to develop the program. And all these will help the token to function within the Ethereum ecosystem.

After that, Initial Coin Offering (ICO) working crowdfunding companies grab it the most popularity. Because it was simple to deploy. Moreover, it bears the standard of Ethereum tokens, and it makes positive points for them.

Advantages of ERC20 Token

Different start-ups or Dapps, like- Metamask also set their own standard. Therefore, they launch a token in Ethereum Network.

By the way, after the invention and launch of the ERC20 token, things have become much easier. There are a lot of benefits of the ERC20 token:

  • Enhanced liquidity of ERC20 tokens
  • Confirms the transaction more efficiently
  • Reduce the risk of contract breaking
  • Uniformity and fast transaction

Tokens are launched in Ethereum Network

Suppose, many tokens are launched in Ethereum Network. Some may cost 100s or 1000s. That doesn’t matter. But each of them does not bear their standard of liquidity. Moreover, it creates problems for clients to trade. On the other hand, it will create problems when exchanges.

Establish a new token

Likewise- if you want to establish a new token, you have to work from bottom to top to establish it.

So, if you have only one liquidity standard token, then it is quite easy to trade and exchange. What is the ERC20 Token

So guys, be sure that you may find many other tokens, by which you can exchange without a third party via smart contracts on decentralized exchanges. I want to get your notice here. Remember they are of the same underlying technology. Therefore, their standard of implementation could be the same. But, the ERC20 token is the only practical scenario. What is the ERC20 Token

What are STOs?

Though we are discussing here all about ICO I think it is relevant to know about STO security token offering. It is just like ICO but the difference is STO is well regulated where the potentiality of scams is less. But ICO is an easy process and there is no need for any third-party authorities. In some easy words to understand STO has a monetary value from strong authorities.

STO is regulated by offering KYC and shareholders expected profit from the investment. On the other hand, ICO token purchaser is only getting involved in the project. There has much more investment risk than STOs.

You can also read out or following articles:
  1. What is Blockchain?
  2. What is Ethereum?
  3. Find out the top 10 decentralized Exchanges.

What is ERC-20? Details

ERC-20 stands for Ethereum Request for Comments 20, which is a technical standard used for smart contracts on the Ethereum blockchain. It defines a set of rules and guidelines that enable the creation and implementation of fungible tokens within the Ethereum ecosystem. These tokens can represent various digital or physical assets, including cryptocurrencies, loyalty points, or even real-world commodities.

2. The Importance of ERC-20 Tokens

ERC-20 tokens play a pivotal role in the Ethereum ecosystem, facilitating the seamless development and integration of new tokens. They provide a standardized framework for developers, ensuring compatibility and interoperability across different Ethereum-based applications. This standardization has contributed to the rapid growth of tokenized economies, allowing for the efficient exchange of assets and the creation of decentralized applications (DApps).

3. How ERC-20 Tokens Function

ERC-20 tokens rely on the Ethereum blockchain’s smart contract functionality to operate. Smart contracts are self-executing agreements that automatically execute predefined conditions when triggered by specific events. In the case of ERC-20 tokens, smart contracts define the token’s behavior, including its total supply, transferability, and other functionalities.

4. Creating and Deploying ERC-20 Tokens

Creating and deploying ERC-20 tokens requires a basic understanding of Solidity, Ethereum’s programming language. Developers utilize Solidity to write the smart contracts that govern the behavior of ERC-20 tokens. Once the contract is created, it can be deployed on the Ethereum blockchain, making the tokens accessible to users.

5. ERC-20 Tokens vs. Other Cryptocurrencies

ERC-20 tokens differ from other cryptocurrencies like Bitcoin or Litecoin in that they operate on the Ethereum blockchain rather than having their own separate blockchain. While cryptocurrencies such as Bitcoin are designed for peer-to-peer digital transactions, ERC-20 tokens focus on the representation of assets and the integration with Ethereum-based applications.

6. The Role of ERC-20 Tokens in Decentralized Finance (DeFi)

ERC-20 tokens have become an integral part of the decentralized finance (DeFi) movement. DeFi encompasses a broad range of financial applications and services built on blockchain technology, offering users increased accessibility, transparency, and control over their financial assets. Many DeFi protocols utilize ERC-20 tokens as a means of exchange, collateral, or governance within their ecosystems.

7. Interoperability of ERC-20 Tokens

One of the significant advantages of ERC-20 tokens is their interoperability. As ERC-20 tokens adhere to a standardized set of rules, they can seamlessly interact with other compatible applications and platforms within the Ethereum ecosystem. This interoperability promotes liquidity and ease of use, as tokens can be traded, transferred, and utilized across a multitude of decentralized exchanges, wallets, and DApps.

8. The Future of ERC-20 Tokens

As the Ethereum ecosystem continues to evolve, ERC-20 tokens are expected to maintain their importance and relevance. With ongoing advancements in scalability and usability, ERC-20 tokens will continue to power innovative decentralized applications, tokenized economies, and emerging financial systems. Furthermore, the potential integration of Ethereum 2.0 and the transition to a proof-of-stake consensus mechanism will further enhance the capabilities and efficiency of ERC-20 tokens.


In conclusion, ERC-20 tokens are an essential component of the Ethereum blockchain, enabling the creation and implementation of fungible tokens within a standardized framework. These tokens have revolutionized the way digital assets are represented, exchanged, and utilized within decentralized applications and tokenized economies. With their interoperability, versatility, and growing adoption, ERC-20 tokens are poised to shape the future of finance and blockchain technology.

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