Crypto Glossary

Coin

beginner
fundamentals

Last reviewed: December 18, 2025

Quick Definition

A cryptocurrency that operates on its own independent blockchain network, serving as the native currency for transaction fees, mining or staking rewards, and network security, distinct from tokens that are built on existing blockchain platforms.

Detailed Explanation

In cryptocurrency terminology, a coin specifically refers to a digital asset that functions as the native currency of its own independent blockchain network. This distinguishes coins from tokens, which are built on top of existing blockchain platforms using smart contracts. Bitcoin operates on the Bitcoin blockchain, Ethereum runs on the Ethereum network, and Litecoin functions on its own Litecoin blockchain—these are all coins because each has an independent blockchain. The coin serves as the foundational economic unit of its blockchain, used primarily to pay transaction fees (ensuring miners or validators process transactions), provide mining or staking rewards (incentivizing network security), and often function as a medium of exchange or store of value. Creating a coin requires building and maintaining an entire blockchain infrastructure including consensus mechanisms, node networks, security systems, and development teams—a significant technical and resource undertaking explaining why coins are relatively rare compared to the thousands of tokens built on existing platforms. Coins typically fulfill multiple functions within their ecosystems. Bitcoin primarily serves as digital money and store of value. Ethereum's Ether pays for computational resources and transaction fees on the Ethereum network. Binance Coin provides utility within the Binance exchange ecosystem while also operating on Binance's own blockchain. Monero focuses on privacy-preserving transactions. Each coin's design reflects its creator's priorities and intended use cases. The coin versus token distinction matters for several practical reasons. Coins generally represent more significant technical achievements requiring complete blockchain development and maintenance. Investment risk profiles differ—coins often represent bets on entirely new blockchain architectures and philosophies, while tokens represent bets on projects building atop established platforms. Transaction fees and wallet requirements vary: you need the native coin to pay transaction fees on any blockchain, even when transacting tokens built on that chain. For example, sending ERC-20 tokens on Ethereum requires ETH to pay gas fees. Security considerations differ because coins inherit security directly from their blockchain's consensus mechanism and network size, while tokens depend on both their own smart contract security and the underlying blockchain's security. Market dynamics distinguish coins from tokens as well. Major coins like Bitcoin and Ethereum often drive overall market direction, while many tokens correlate strongly with their underlying platform's coin—if Ethereum's price rises, ERC-20 tokens often benefit from increased attention and liquidity on the Ethereum network. However, the coin-token terminology boundary has blurred somewhat as blockchain technology evolved. Some projects began as tokens but transitioned to independent blockchains with their own coins, like Binance Coin moving from ERC-20 token to Binance Chain native coin. Additionally, concepts like wrapped coins (such as Wrapped Bitcoin on Ethereum) create token representations of coins on different blockchains, further complicating the distinction. Understanding whether you're dealing with a coin or token helps you assess the project's technical foundation, risk profile, usage requirements, and ecosystem position.

Common Questions

What is the difference between a coin and a token in cryptocurrency?

The fundamental difference is that coins operate on their own independent blockchain networks while tokens are built on top of existing blockchain platforms. Bitcoin is a coin because it runs on the Bitcoin blockchain that was created specifically for it. Ethereum's Ether is a coin operating on the Ethereum blockchain. However, many cryptocurrencies you hear about—like Chainlink, Uniswap, or Shiba Inu—are tokens built on the Ethereum blockchain using smart contracts, meaning they don't have their own independent blockchain infrastructure. This distinction has several important implications. First, creating a coin requires building and maintaining an entire blockchain system with its own consensus mechanism, node network, and security infrastructure—a massive technical undertaking. Creating a token is comparatively simpler since you're leveraging an existing blockchain's infrastructure. Second, coins serve as the native currency of their blockchain, used to pay transaction fees and reward network participants (miners or validators). Tokens cannot typically pay transaction fees—you need the underlying blockchain's coin for that. For example, to send any token on the Ethereum network, you must pay transaction fees (gas) in ETH, even if you're sending USDT or LINK. Third, the security model differs: coins derive security directly from their blockchain's consensus mechanism and network size, while tokens depend on both their smart contract security and the underlying blockchain's security. Fourth, investment implications differ—buying a coin means investing in an entire blockchain ecosystem and its technology, while buying a token means investing in a specific project or application built on an existing platform. Fifth, functionality differs: coins typically focus on being money or enabling blockchain operations, while tokens often represent specific utilities, governance rights, or assets within particular applications. However, the boundary can blur: some projects start as tokens but later launch their own blockchains and convert to coins (like Binance Coin), while some coins get 'wrapped' as tokens on other chains for interoperability. Understanding this distinction helps you evaluate what you're actually buying and what infrastructure requirements exist for holding and using different cryptocurrencies.

Why do I need to hold the native coin if I'm only transacting tokens on a blockchain?

You need to hold the native coin of any blockchain to pay transaction fees (often called gas fees), even when you're only sending or receiving tokens built on that blockchain. This is a fundamental aspect of how blockchains work. When you send a token—let's say USDC on Ethereum—your transaction must be processed by network validators who verify and record it on the blockchain. These validators need compensation for the computational resources and energy they expend processing your transaction, and that compensation must be paid in the blockchain's native coin. On Ethereum, you pay gas fees in ETH regardless of what token you're sending. On Binance Smart Chain, you pay in BNB. On Polygon, you pay in MATIC. The native coin serves as the economic fuel that keeps the blockchain operating. Think of it like needing stamps to mail a letter—the envelope might contain anything, but you need official stamps (native coins) to get it delivered. This creates a common frustration for beginners: you might receive tokens as payment or purchase them, but find you cannot send them anywhere because you don't have any of the blockchain's native coin to pay transaction fees. For example, someone might send you $100 worth of USDT on Ethereum, but you'd need perhaps $5-50 of ETH (depending on network congestion) to actually send that USDT somewhere else. Without ETH, your tokens are essentially stuck in your wallet until you acquire some. This requirement means when getting involved with any blockchain ecosystem, you should always keep some of the native coin in your wallet to cover transaction fees. The amount varies by blockchain—Ethereum can require significant ETH for fees during busy periods, while other blockchains like Polygon have much lower native coin requirements for transactions. Some exchanges and services try to mitigate this friction by allowing withdrawals that bundle a small amount of native coin with token withdrawals, but this isn't universal. The practical lesson: before acquiring tokens on any blockchain, ensure you also have or can easily obtain some of that blockchain's native coin to enable transactions. Calculate total costs including both token prices and the native coins needed for fees, especially on Ethereum where gas costs can be substantial.

Are coins better investments than tokens or does it depend on the specific cryptocurrency?

Neither coins nor tokens are inherently better investments—quality depends entirely on the specific cryptocurrency's fundamentals, use case, team, adoption, and market conditions rather than its classification as coin or token. Some of the most successful cryptocurrency investments have been tokens (like Chainlink or Uniswap built on Ethereum), while many coins have failed completely. However, the coin-token distinction does affect the nature of your investment bet and risk profile in important ways you should understand. When investing in a coin, you're betting on an entire blockchain ecosystem—its technology architecture, consensus mechanism, scalability solutions, security model, developer community, and ability to attract applications and users. Successful coins typically capture value from broad platform network effects: as more applications and users join the blockchain, demand for the native coin increases for transaction fees and network participation. This creates potential for substantial value capture but also means your investment succeeds or fails based on macro platform adoption. When investing in tokens, you're betting on a specific project, application, or protocol built on an existing blockchain. Your return depends more on that particular project's execution, market fit, competitive position, and token economics rather than the underlying blockchain's success (though they're often correlated). Tokens can succeed even on less popular blockchains if they solve specific problems well, or they can fail even on successful blockchains if the project doesn't deliver value. Risk profiles differ somewhat: major coins like Bitcoin or Ethereum often experience lower volatility than smaller tokens due to greater liquidity and market maturity, though all cryptocurrencies remain highly volatile compared to traditional assets. Tokens face additional risks including smart contract vulnerabilities that don't affect native coins, dependency on their underlying blockchain's continued operation, and often shorter track records. However, tokens might also offer higher return potential if backing innovative projects gaining adoption. The practical investment approach focuses on fundamentals regardless of classification: Does the cryptocurrency solve real problems? Is the team competent and trustworthy? Does the tokenomics make sense? Is adoption growing? Are there moats preventing competition? What's the market size? These questions matter more than coin versus token classification. Diversification across both coins and quality tokens, representing different blockchains and use cases, typically provides better risk-adjusted returns than concentrating in one category. Never let classification drive investment decisions—let project quality, adoption potential, and risk-appropriate position sizing guide your choices.

Common Misconceptions

Misconception:
All cryptocurrencies are called coins, so Bitcoin, Ethereum, and every other cryptocurrency are all coins.
Reality:

While 'coin' is sometimes used colloquially to refer to any cryptocurrency, technically most cryptocurrencies are actually tokens, not coins. Only cryptocurrencies that operate on their own independent blockchain qualify as coins—Bitcoin, Ethereum, Litecoin, Cardano, and similar projects with proprietary blockchain infrastructure. The vast majority of the thousands of cryptocurrencies you can trade are actually tokens built on top of existing blockchains like Ethereum, Binance Smart Chain, or Solana. Popular cryptocurrencies like Chainlink, Uniswap, Shiba Inu, and USDT are tokens, not coins, because they don't have independent blockchains but instead use existing platforms' infrastructure. This distinction matters practically: tokens require you to hold the underlying blockchain's native coin to pay transaction fees, have different security models depending on smart contract implementation, and represent investment in specific applications rather than entire blockchain systems. Using 'coin' for everything creates confusion about these important technical and practical differences. The proper terminology helps you understand what you're actually buying—a standalone blockchain system (coin) or an application/asset built on an existing blockchain (token). While the colloquial usage won't disappear, understanding the technical distinction provides clarity about infrastructure requirements, fee structures, and the nature of your investments.

Misconception:
Since tokens are built on other blockchains instead of being independent, they're less valuable or legitimate than coins.
Reality:

Being a token rather than a coin doesn't imply lower value, legitimacy, or investment potential—some of the most valuable and successful cryptocurrency projects are tokens. Chainlink, a token on Ethereum, reached valuations exceeding many standalone blockchain coins. USDT and USDC, both tokens, process more transaction volume than most blockchain coins. Many major DeFi protocols and successful cryptocurrency projects are tokens that deliberately chose to build on existing blockchain infrastructure rather than creating new blockchains. Building as a token on an established platform like Ethereum offers significant advantages: immediate access to existing security from Ethereum's massive network, proven consensus mechanism and developer tools, established wallet and exchange infrastructure, and ability to focus on application development rather than blockchain maintenance. Creating an independent blockchain requires tremendous resources for security, node operators, developer tools, and ecosystem building—resources many projects can better allocate to their core value proposition. Many highly valuable services don't need or benefit from independent blockchain infrastructure and would waste resources building it. The coin-token distinction reflects technical architecture choices, not value or legitimacy hierarchies. Evaluate projects based on fundamentals: Does the project solve real problems? Is the team capable? Does the tokenomics make sense? Is adoption growing? These questions matter infinitely more than whether something is technically a coin or token. Some of the worst cryptocurrency failures have been coins with independent blockchains but no real utility, while many of the most successful projects are tokens that deliver genuine value. Let project quality, not classification, guide your assessment of value and legitimacy.

Misconception:
I can use any cryptocurrency to pay transaction fees on any blockchain.
Reality:

You must use a blockchain's native coin to pay transaction fees on that specific blockchain—you cannot substitute other cryptocurrencies, even valuable ones. This is a fundamental technical requirement that catches many beginners by surprise. If you want to send tokens on Ethereum, you must pay gas fees in ETH, not Bitcoin, USDT, or any other cryptocurrency. To transact on Binance Smart Chain, you need BNB for fees. Polygon requires MATIC. Each blockchain accepts only its native coin for transaction fee payment because that coin is programmatically integrated into the blockchain's operation—the code specifically requires and recognizes only that coin as valid for fee payment. This isn't an artificial limitation but a core design feature: the native coin provides economic incentives for network security by compensating validators/miners who process transactions, and using a consistent native currency for fees simplifies the economic mechanism. The practical implication is that you must always hold some amount of each blockchain's native coin if you want to transact on that blockchain, even if you're only interested in tokens. A common frustration: receiving tokens as payment but having no native coins to pay transaction fees to move them, effectively leaving the tokens temporarily stuck. Some services try addressing this by bundling small native coin amounts with token transfers, but this isn't universal. The solution is planning ahead—before acquiring tokens on any blockchain, ensure you also have or can easily obtain some of that blockchain's native coin to cover transaction fees. This multi-coin requirement is one reason many people initially stick to one or two primary blockchains rather than spreading across many chains—each additional blockchain means another native coin to acquire and manage just to pay fees. Understanding this requirement prevents the frustrating discovery that your tokens are inaccessible because you lack the native coin for transaction fees.

Related Terms

Token
Blockchain
Transaction Fee
Native Currency

Want to Learn More About Coin?

Join CryptoMantiq for in-depth lessons, AI-powered guidance, and hands-on practice with our trading simulator.