A cold wallet keeps the keys that control your crypto offline, reducing exposure to online attacks. Learn how it works, what it costs, and how to set one up without losing access.
A crypto API lets software request blockchain, exchange or market information—and sometimes submit actions—without building every connection from scratch. Learn what APIs do, which permissions matter, what they can cost and how to use one safely.
A cold wallet keeps your crypto keys offline, making remote theft harder—but it does not make your funds risk-free. Here’s how cold storage works, when it makes sense, and how to use it safely.
A crypto heatmap turns market data into a color-coded picture, but the colors can represent very different things. Learn how to identify the type, read it in context and avoid treating it as a prediction.
A crypto onramp lets you exchange ordinary money, such as dollars or euros, for cryptocurrency. Learn how purchases work, what costs to check, and how to get the crypto into the right account or wallet.
A crypto seed phrase is the master backup for many self-custody wallets. Learn what it controls, how to store it safely, and what to do if it is lost or exposed.
A crypto wallet address is the public destination you share to receive funds—not the key that lets someone spend them. Learn how to find, check and use one without sending crypto on the wrong network.
A cryptocurrency wallet gives you a way to view crypto addresses and authorize transactions. Learn how keys work, which wallet type fits your needs, and what to check before sending funds.
A custodial crypto service holds or controls the private keys for crypto in your account. Learn how that changes access, costs and risk, then use a checklist to assess a service before depositing.
A DeFi wallet is a tool for holding or accessing crypto and connecting to decentralized finance apps. Learn how keys, networks, fees and transaction approvals work before you connect one or move funds.
A hot crypto wallet is software that lets you access blockchain accounts and sign transactions using an internet-connected device. It can make sending and using crypto convenient, but the right setup depends on who controls the keys and how much you plan to keep accessible.
A multichain wallet lets you manage crypto on more than one blockchain through one app. It does not automatically move assets between networks, cover every chain, or remove the need to check addresses, fees and transaction details.
A multisignature wallet requires approvals from multiple keys before it can send crypto. Learn how M-of-N rules work, when multisig helps, and how to set one up without creating a recovery problem.
A private crypto wallet usually means a self-custody wallet: you control the keys that authorize transactions. That control does not make your activity anonymous or hide transactions recorded on a public blockchain.
A self-custody Web3 wallet lets you authorize blockchain transactions with keys you control, rather than asking an exchange to move assets for you. Learn what that control means, how to set up a wallet safely, and what risks and costs to check before using one.
A Web3 wallet lets you manage blockchain accounts and connect to decentralized apps. Learn what it actually holds, how to choose one, and how to use it more safely.
Alchemy is Web3 infrastructure for developers: it provides APIs and tools that help apps communicate with blockchains. If you use a wallet or dapp, you usually interact with Alchemy indirectly rather than needing an Alchemy account.
An offline crypto wallet keeps your private keys away from an internet-connected device; it does not store coins on the device itself. Learn how cold storage works, how to set one up and what it can—and cannot—protect you from.
An online crypto wallet helps you access crypto on a blockchain, but it does not store coins like a physical wallet. Learn how keys, wallet types, fees and safety checks work before choosing one or moving funds.
Fireblocks is institutional infrastructure for securing and moving digital assets, not a typical app wallet for individuals. Understand how its custody model works, who controls the assets, and what to check before a business relies on it.
MetaMask is a self-custody crypto wallet and a way to connect to supported blockchain apps. Learn what it does, how to set it up safely, what it costs and where the risks are.
Binance is generally described as the world’s largest centralized crypto exchange by trading volume. But “biggest” can mean different things, and the largest platform may not be the right or available choice for you.
Self-custody gives you direct control over crypto, but also makes you responsible for securing the keys and handling mistakes. Learn how to set up a wallet, move funds carefully and decide whether this trade-off suits you.