

Decentralized finance (DeFi) represents a revolutionary approach to financial services, enabling users to trade, lend, and borrow digital assets without relying on traditional intermediaries. The sector has experienced remarkable growth, particularly gaining significant momentum throughout 2021 when DeFi coins captured mainstream attention. Active crypto wallets participating in DeFi transactions surged from approximately 100,000 in early 2020 to millions in subsequent years. This exponential expansion reflects the increasing adoption of blockchain-based financial solutions. During 2021 and 2022, on-chain trading volume in DeFi platforms surpassed centralized exchanges, processing an impressive $224 billion in cryptocurrency transactions. To support this growth and foster community engagement, many DeFi protocols have introduced their own native cryptocurrencies known as DeFi tokens, primarily built on blockchain networks such as Ethereum. Understanding DeFi coins from 2021 onwards provides crucial context for navigating today's decentralized finance landscape.
DeFi, short for decentralized finance, constitutes a specialized segment of the cryptocurrency ecosystem dedicated to delivering financial products and services without centralized intermediaries. Unlike traditional financial systems that require users to submit personal information to banks, brokerage firms, or fintech companies, DeFi applications operate on decentralized computer networks called blockchains. These protocols function as applications running atop blockchain platforms like Ethereum, enabling direct peer-to-peer interactions.
The technological foundation of DeFi relies heavily on smart contracts—self-executing coded programs that automatically fulfill predetermined conditions. For instance, when a user initiates a swap from ETH to USDC on a decentralized exchange, the underlying smart contract detects the ETH deposit and autonomously transfers the equivalent USDC amount to the user's wallet. This automated, trustless mechanism eliminates the need for intermediaries while maintaining security. Consequently, DeFi applications are commonly referred to as decentralized applications (dApps), emphasizing their distributed nature and smart contract-powered functionality.
Understanding the distinction between DeFi coins and tokens is essential for navigating the decentralized finance landscape, particularly when evaluating DeFi coins from 2021 that established foundational standards. In its broadest sense, any digital asset utilized within DeFi applications qualifies as a DeFi cryptocurrency, but the terminology differs based on the asset's relationship with its underlying blockchain.
A coin represents the native cryptocurrency of an independent blockchain network. Ethereum's ETH exemplifies this concept—it exists as an integral component of the Ethereum blockchain, serving as the primary payment method for transaction fees (gas fees) when users interact with Ethereum-based dApps. While ETH isn't exclusively designed for DeFi purposes, its fundamental role in powering prominent DeFi platforms warrants its classification as a DeFi coin.
In contrast, DeFi tokens are cryptocurrencies created on top of existing blockchain infrastructures such as Ethereum, Cardano, or Solana, and are specifically associated with particular DeFi projects. Developers issue these tokens to introduce specialized functionalities to their ecosystems, including governance voting rights or reward distribution mechanisms. DeFi tokens typically fall under the broader category of utility tokens, as they serve specific purposes within their respective Web3 environments beyond mere price speculation. Although these tokens may trade on various cryptocurrency platforms with fluctuating values, their primary value proposition lies in their practical applications within their native DeFi protocols.
The DeFi landscape continuously evolves with new projects emerging regularly, making it challenging to track all available cryptocurrencies. Many prominent DeFi coins from 2021 continue to maintain significant influence in the sector and serve as benchmarks for understanding decentralized finance:
Sushi (SUSHI) originated as a decentralized exchange on Ethereum that deliberately replicated another platform's architecture. Created by pseudonymous developers Chef Nomi and 0xMaki, the platform copied open-source code and incentivized user migration by offering substantial SUSHI token rewards. This strategy gained significant traction during 2021's DeFi boom. Beyond functioning as an incentive mechanism, SUSHI tokens grant holders governance rights, enabling them to participate in decision-making processes regarding the protocol's development and future direction.
Aave (AAVE) operates as a peer-to-peer cryptocurrency lending and borrowing protocol built on Ethereum. Aave emerged as one of the leading DeFi coins in 2021, establishing itself as a cornerstone lending protocol. Similar to other governance tokens, AAVE's primary function involves empowering holders to vote on governance proposals affecting the platform's evolution. The protocol implements a Safety Module where community members can deposit AAVE tokens to enhance protocol security. Contributors to the Safety Module receive token rewards for their participation, though Aave maintains the authority to reduce up to 30% of deposited stakes during emergency situations to safeguard the protocol's stability.
Lido DAO (LDO) focuses on facilitating interest generation for holders of proof-of-stake (PoS) cryptocurrencies like Ethereum. PoS represents a consensus mechanism where network participants lock (stake) their cryptocurrency to validate transactions and earn rewards. Lido issues derivative tokens such as Lido Staked Ethereum (StETH), which serve as receipts representing users' staked assets. The LDO token functions as Lido DAO's governance token, enabling holders to propose and vote on protocol upgrades and modifications.
Curve Finance (CRV) distinguishes itself as an Ethereum-based decentralized exchange specializing in low-volatility cryptocurrency trading pairs. Unlike platforms offering diverse speculative altcoins, Curve Finance predominantly features stablecoins and wrapped tokens, catering to users seeking stable trading environments. CRV gained prominence among DeFi coins in 2021 for its unique approach to liquidity provision. The CRV governance token empowers community members to influence the protocol's strategic direction through voting mechanisms, ensuring decentralized decision-making aligned with user interests.
Acquiring DeFi cryptocurrencies doesn't necessitate direct interaction with DeFi protocols. While users can earn or purchase these tokens directly through decentralized exchanges, decentralized wallets, and other DeFi dApps, numerous mainstream cryptocurrency trading platforms offer convenient access to DeFi-related cryptocurrencies through straightforward processes.
Traders typically begin by visiting cryptocurrency price aggregator platforms such as CoinMarketCap or CoinGecko, which provide comprehensive market data. These platforms feature dedicated DeFi token sections or search functionalities enabling users to locate specific cryptocurrencies by their ticker symbols. Many prominent DeFi coins from 2021 remain actively traded and accessible on these platforms. After identifying a desired DeFi token, users should visit the project's official website to conduct thorough research, examining factors such as market capitalization, tokenomics (token distribution and utility), and practical applications within its ecosystem.
Most cryptocurrency listing pages include an "Exchanges" tab displaying all centralized platforms and decentralized exchanges offering trading pairs for that particular token. This information helps traders identify platforms where they can execute transactions. Finally, users select their preferred trading platform based on factors like security, liquidity, fees, and user experience. Depending on the chosen platform, traders either create an account on a centralized service or connect a compatible crypto wallet to a decentralized exchange to complete their DeFi token purchases.
DeFi tokens represent a fundamental component of the decentralized finance revolution, serving purposes far beyond simple price speculation. The foundational DeFi coins from 2021 established governance models and utility frameworks that continue influencing the ecosystem today. These cryptocurrencies enable governance participation, facilitate reward distributions, and enhance protocol functionality within their respective ecosystems. The distinction between coins and tokens—where coins form the foundation of blockchain networks while tokens build upon these infrastructures—provides crucial context for understanding the DeFi landscape. Popular projects demonstrate how governance tokens can foster community engagement and decentralized decision-making. As the DeFi sector continues expanding, with millions of active wallets and substantial transaction volume, these tokens continue playing important roles in shaping the future of finance. Whether acquired through decentralized platforms or mainstream trading services, DeFi tokens offer users opportunities to participate in innovative financial systems that prioritize transparency, accessibility, and user empowerment over traditional centralized control. Understanding the evolution of DeFi coins since 2021 provides valuable perspective for evaluating current and future opportunities in decentralized finance.
Chainlink, Aave, and Uniswap are the top DeFi coins by market cap. They provide decentralized lending, trading, and oracle services without traditional intermediaries.
Dogecoin and Shiba Inu experienced explosive growth in 2021. Dogecoin surged due to social media hype and celebrity endorsements, while Shiba Inu gained massive popularity and trading activity throughout the year.
Several emerging coins show 1000x potential, including BTC Bull Token, Portuma, Fantasy PEPE, and Solaxy. These projects offer innovative features in DeFi and gaming sectors, with strong tokenomics designed for significant growth through 2025.
The global DeFi market is projected to reach $232.20 billion by 2030, growing from $11.96 billion in 2021. This substantial expansion reflects increasing adoption of decentralized finance solutions and blockchain technology.











