In one sentence
A digital asset that lives on another network's blockchain instead of having its own chain, and that can represent almost anything: voting rights, access to a service, a share in a pool, or ownership of a real-world asset.
A token is a digital asset that lives on another network’s blockchain instead of having its own chain. It can represent almost anything: voting rights, access to a service, a share in a pool, or ownership of a real-world asset.
The foundational distinction in crypto vocabulary: Bitcoin and Ether are coins because they have their own blockchain; UNI, LINK, and the thousands of assets in the ecosystem are tokens because they live on other networks’ chains, mainly Ethereum. A token rents the security and infrastructure of its host network, and in exchange pays fees in that network’s native currency: transferring an ERC-20 token costs gas in ETH, not in the token itself.
Creating one is surprisingly simple. All it takes is a smart contract that defines how many units exist, how they’re transferred, and what rules they follow. That ease explains the ecosystem’s numbers: millions of tokens exist, and only a tiny fraction of them have real use. The technology doesn’t filter for quality; that part is still the investor’s job.
Types of tokens (and the one to scrutinize)
Governance tokens: grant the right to propose and vote on a protocol’s decisions; UNI, from Uniswap, is the classic example. Utility tokens: pay for services within a platform or grant access to features. Stablecoins: tokens designed to be worth 1 dollar, the category with the most real-world use. Real-world asset (RWA) tokens: represent things from the physical world, from gold to government debt. And NFTs are non-fungible tokens: each unit is unique instead of interchangeable.
The one to scrutinize is the token with no category, the one that governs nothing, pays for nothing, grants access to nothing, and represents nothing, but sells with a story. The filter question is always the same. If the project would work without its token, what is the token for? When the only honest answer is “to fund the team,” you already know the product.
Tokenomics, the fine print that moves a token’s price
A token’s economics matter as much as its function. The critical variables are total and circulating supply (how many exist, and how many are still to enter the market?), distribution (what percentage do the team and investment funds hold?), and unlock schedule (when can insiders sell?). Mass unlocks are among the market’s most predictably bearish events: millions of tokens bought for cents flooding into a market that paid dollars for them. It’s almost always all published; reading it before investing is the difference between analysis and hope.
UNI, a governance token in action
UNI is the token of the decentralized exchange Uniswap, built on Ethereum. Whoever holds UNI can vote on proposals for the protocol: fee changes, treasury use, new developments. The token has no blockchain of its own (it lives on Ethereum as an ERC-20 contract), and its value reflects, in theory, the right to decide on one of DeFi’s most used protocols. In practice, it also reflects all the speculation around that theory.
How tokens reach your wallet
The paths are more varied than a simple purchase. Exchanges list the main tokens against pesos or stablecoins: the simple route. DEXs give access to the rest, with the already known risks. Airdrops hand out free tokens to a protocol’s early users (historic ones, like Uniswap’s, handed out thousands of dollars per wallet), and they’re also a favorite scam vector: junk tokens sent unsolicited that try to get you to interact with malicious contracts. The short rule is that tokens that show up on their own in your wallet don’t get touched; legitimate airdrops are claimed on the protocol’s official sites, never from the token itself.
