ERC-20 Token Standard

When working with ERC-20, a token standard that defines how fungible assets behave on the Ethereum blockchain. Also known as Ethereum Request for Comments 20, it provides a common set of functions that let wallets, exchanges and dApps recognize and transfer tokens consistently.

ERC-20 lives on Ethereum, the public, permissionless blockchain that hosts smart contracts and decentralized applications. Every ERC-20 token is a smart contract, code that runs automatically when predefined conditions are met and follows the same six basic methods (totalSupply, balanceOf, transfer, transferFrom, approve, allowance). Because the interface is identical for all compliant tokens, developers can build tools once and reuse them across countless projects. This uniformity is the backbone of modern tokenomics: it lets anyone create a new coin, set its supply, and start trading without reinventing the wheel.

Why ERC-20 matters across crypto

The ERC-20 standard powers most of the ecosystem you’ll see on DocSUE. In DeFi, protocols like lending platforms, yield farms and stablecoin systems rely on ERC-20 tokens to represent assets, collateral and reward points – a clear example of the triple “ERC-20 enables DeFi”. Airdrop campaigns also tap into this standard because the token can be sent to any wallet address with a single transaction, making mass distribution cheap and transparent – that’s the “ERC-20 facilitates airdrops” relationship. Crypto exchanges list ERC-20 tokens after a quick contract verification, which is why you’ll find many review articles about swapping, listing fees and compliance in the collection below. Even regulatory guides mention ERC-20 when discussing how token issuers meet security‑token (STO) requirements, showing that the standard links compliance and innovation.

By understanding ERC-20 you instantly unlock a toolbox that covers everything from token creation to market listing. The posts under this tag walk you through a security‑token offering guide, a no‑KYC cross‑chain swap review, multiple airdrop claim tutorials, and deep dives into DeFi yield calculations. They also explain how on‑chain NFT royalties (EIP‑2981) interact with ERC‑20 payments, how crypto compliance programs treat ERC‑20 assets, and how blockchain land registries could someday use tokenized titles. Whether you’re a developer drafting a new contract, an investor tracking airdrop eligibility, or a compliance officer mapping AML rules, the ERC‑20 standard is the common thread that ties all these topics together.

Below you’ll find a curated set of articles that break down the practical side of ERC‑20. Expect step‑by‑step guides for claiming airdrops, detailed exchange reviews that rank platforms on ERC‑20 support, and strategic pieces on how the standard fits into broader tokenization trends. Dive in to see how the simple six‑method interface powers everything from GameFi tokens like KING to stablecoin swaps on Curve Finance. The collection gives you both the big picture and the nitty‑gritty you need to act confidently in the crypto world.