Token Standards

What Are Token Standards?

Token standards are a set of rules and protocols that define how digital tokens are created, transferred, and managed on a specific blockchain network.

Why Token Standards Matter

Token standards provide a common framework that developers can rely on when building new tokens. When a token follows an established standard, it can be automatically supported by wallets, exchanges, and other infrastructure that already recognizes that standard. This reduces development overhead and helps users avoid interacting with incompatible tokens.

Standards also help maintain consistency in how tokens handle basic functions such as transfers, approvals, and balance checks. By following a predefined set of rules, token creators can focus on the specific utility of their token rather than reimplementing foundational mechanics each time.

Types of Token Standards

Several blockchain networks have developed their own token standards to serve different purposes. The most widely used include:

• ERC-20: The dominant fungible token standard on Ethereum. ERC-20 tokens are interchangeable, meaning one token is equal in value to another. This standard is commonly used for utility tokens, governance tokens, and stablecoins.
• ERC-721: A non-fungible token standard on Ethereum. Each ERC-721 token is unique and indivisible, making it suitable for digital collectibles, art, and other one-of-a-kind assets.
• BEP-20: The primary fungible token standard on the BNB Smart Chain (BSC). BEP-20 mirrors the functionality of ERC-20 but operates within the BNB Chain ecosystem, where transaction fees tend to be lower.
• SPL: Solana Program Library is the token standard for the Solana network. SPL tokens are designed to take advantage of Solana's high throughput and low transaction costs.

Other notable standards include ERC-1155, which supports both fungible and non-fungible tokens within a single contract, and BEP-2, which was used on the BNB Beacon Chain but has declined in relevance as the ecosystem has shifted toward BSC and BNB Smart Chain.

How Token Standards Work

This compliance allows platforms and wallets to interact with the token using a predictable interface. For example, a wallet that supports ERC-20 tokens can display any ERC-20 compliant token without needing custom code for each one. The same principle applies across other standards and blockchains.