The Base wallet blog
Plain-English guides on Base, self-custody, fees and staying safe with your crypto.
What a Smart Contract Audit Actually Tells You
Jul 27, 2026 · 4 min read
An audit badge on a token's website looks reassuring, but it answers a narrower question than most people assume. Here is what audits check, what they miss, and how to read one before you swap.
Read article →Sybil Attacks and Airdrop Farming Explained
Jul 27, 2026 · 5 min read
Why crypto projects filter out wallets before an airdrop, what a Sybil attack actually is, and what it means for everyday users on Base.
Yield Farming and Liquidity Mining: Why the Advertised APY Is Rarely the Full Story
Jul 26, 2026 · 5 min read
A pool advertising 40% or 400% APY is not paying you out of thin air. Here is what yield farming and liquidity mining actually pay you with, and why the headline number is usually the least useful part of the offer.
Market Orders vs. Limit Orders: What They Mean When You Swap on Base
Jul 26, 2026 · 5 min read
When you swap on a Base DEX you are almost always placing a market order. Here is what that means, how limit orders differ, and where limit order tools exist on Base today.
What is a burner wallet, and when should you actually use one
Jul 25, 2026 · 5 min read
A burner wallet is a small, disposable wallet you use for risky or unfamiliar actions, kept separate from your main funds. Here is what it is, how to set one up on Base, and when it genuinely helps.
You Sent Crypto to the Wrong Network. Here Is What Happens Next
Jul 25, 2026 · 5 min read
Sending the right address on the wrong chain is one of the most common crypto mistakes, and often a fixable one if you understand what actually happened. Here is how to check, and what your real options are.
What Is a Stablecoin and How Does It Hold Its Peg?
Jul 24, 2026 · 6 min read
Stablecoins like USDC and DAI are designed to track the value of a currency such as the US dollar. Here is how the main types work and why a peg can still slip.
Staking vs. Swapping: What Liquid Staking Tokens Like cbETH and wstETH Actually Are
Jul 24, 2026 · 4 min read
Staking and swapping are different actions with different risks. Here is what staking means, why liquid staking tokens exist, and what to check before you hold one.
What Is a Price Oracle and Why DeFi Needs Them
Jul 23, 2026 · 5 min read
Price oracles feed real world price data onto the blockchain so DeFi apps can work. Here is how they function, why they matter for swaps and lending, and how manipulated oracles have caused real losses.
What Does a Verified Contract on Basescan Actually Mean
Jul 23, 2026 · 4 min read
Basescan shows a green checkmark next to some contracts and not others. Here is what that label really confirms, and why it is not the same thing as a safety guarantee.
Why You Should Test Your Wallet Recovery Before You Need It
Jul 22, 2026 · 5 min read
Writing down your recovery phrase is only half the job. Here is how to confirm it actually works, before an emergency forces you to find out the hard way.
Permit Signatures: How Gasless Token Approvals Actually Work
Jul 22, 2026 · 5 min read
Some apps let you approve a token without paying gas or sending a transaction at all. That is a permit signature. Here is what it does, why it exists, and why it deserves the same caution as a normal approval.
Understanding TVL: what "total value locked" actually tells you
Jul 21, 2026 · 5 min read
TVL shows up on every DeFi dashboard as a headline number, but it measures deposits, not usage or safety. Here is what it counts, what it misses, and how to read it without overreacting.
Market Cap vs. Fully Diluted Valuation: What These Numbers Actually Tell You
Jul 21, 2026 · 5 min read
Two tokens can trade at almost the same price yet represent very different amounts of value. Market cap and fully diluted valuation are the numbers that explain the difference, and why price alone can be misleading.
What Is DeFi? Decentralized Finance Explained
Jul 20, 2026 · 5 min read
DeFi lets you trade, lend, and hold assets directly from your own wallet, without a bank or broker in the middle. Here is how it actually works.
What Is a DAO? Onchain Governance Explained
Jul 20, 2026 · 5 min read
Many projects on Base are run partly or fully by a DAO. Here is what that actually means, how onchain voting works, and what to watch for as a token holder.
What Is a Testnet, and Why Does Base Have One?
Jul 19, 2026 · 5 min read
Base mainnet is not the only version of Base. A separate practice network called a testnet exists alongside it. Here is what a testnet actually is, why it exists, and how to tell the two apart.
Transaction simulation explained: what your wallet shows before you sign
Jul 19, 2026 · 4 min read
Many wallets now preview what a transaction will actually do before you approve it. Here is how that preview works, what it can catch, and where it still falls short.
Gasless transactions on Base: what a paymaster actually does
Jul 18, 2026 · 5 min read
Some Base apps let you transact without holding ETH for gas. Nothing is free, someone still pays the network. Here is how paymasters work and what to understand before you rely on one.
Address poisoning: how a fake transaction can plant a scam address in your wallet history
Jul 18, 2026 · 5 min read
Sometimes a transaction shows up in your history that you never asked for, sent from an address that looks almost identical to one you actually use. Here is how that trick works and how to avoid falling for it.
Adding the Base Network to Your Wallet Manually
Jul 17, 2026 · 4 min read
Most wallets can add Base with one click, but knowing how to do it by hand, and how to check the details are correct, is a useful skill worth having.
What Is cbBTC on Base?
Jul 16, 2026 · 4 min read
cbBTC is Coinbase's wrapped Bitcoin token, backed 1:1 by BTC and usable on Base. Here is how it works, how it differs from other wrapped Bitcoin tokens, and what to check before you use it.
What Is an RPC Endpoint, and Why Does Your Wallet Need One?
Jul 16, 2026 · 5 min read
Your wallet doesn't talk to Base directly. It talks through an RPC endpoint, a kind of messenger between your device and the network. Here's what that means and why it occasionally matters.
Why bridging carries different risks than swapping on Base
Jul 15, 2026 · 4 min read
A swap and a bridge can look like the same click, but they rely on very different trust assumptions. Here is what actually happens when you move assets between chains, and why it deserves extra caution.
Base fee, priority fee, and the L1 data fee: what you are really paying for
Jul 15, 2026 · 5 min read
A Base transaction fee is not one number, it is three. Here is what the base fee, the priority fee, and the L1 data fee each pay for, and why one of them moves with Ethereum, not Base.
NFTs on Base Explained: What They Are and How Your Wallet Handles Them
Jul 14, 2026 · 5 min read
A plain language guide to what NFTs actually are, how the ERC-721 and ERC-1155 standards work, and what to check before you mint, buy, or hold one in a self custody wallet on Base.
Choosing and setting up a hardware wallet for your Base holdings
Jul 14, 2026 · 5 min read
If your Base holdings have grown past pocket change, a hardware wallet is the standard way to move the bulk of them offline. Here is how these devices work, what to look for, and how to set one up correctly.
What is a DEX aggregator, and how it finds you a better price
Jul 13, 2026 · 5 min read
A single swap on Base can pull liquidity from several different exchanges at once. Here is what a DEX aggregator does, why it exists, and what it means for the price you actually get.
Transaction Nonces Explained: Why a Transaction Gets Stuck in Line
Jul 13, 2026 · 5 min read
Every transaction you send has a hidden number attached to it called a nonce. Understanding how it works explains why transactions sometimes queue up, get stuck, or appear to happen out of order.
Liquidity pools and impermanent loss: what happens on the other side of your swap
Jul 12, 2026 · 6 min read
Every swap you make on Base is filled by a pool someone else funded. Here is who those people are, why they do it, and the tradeoff called impermanent loss that comes with the job.
Multisig wallets explained: when one key is not enough
Jul 11, 2026 · 5 min read
A regular self-custody wallet trusts one key. A multisig wallet spreads that trust across several. Here is what a multisig is, how it works, and who actually needs one.
Connecting your wallet to a dapp: what actually happens and how to do it safely
Jul 11, 2026 · 5 min read
Clicking Connect Wallet feels routine, but it starts a real handshake between your wallet and a website. Here is what that handshake grants, what it does not, and how to check a site before you approve it.
Smart wallets and passkeys: a different way to hold crypto on Base
Jul 10, 2026 · 5 min read
Not every Base wallet works the way you might expect. Some skip the recovery phrase entirely and use your fingerprint or face instead. Here is how that model works, and where it differs from a traditional self-custody wallet.
How Base stays secure: optimistic rollups explained
Jul 8, 2026 · 5 min read
Base is fast and cheap, but where does its security come from? The short answer is Ethereum. This is a plain English look at optimistic rollups, fault proofs, and the seven day challenge window.
Withdrawing from Base to Ethereum, and why it can take seven days
Jul 7, 2026 · 6 min read
Moving funds from Base back to Ethereum mainnet is not always instant. Here is why the native route involves a waiting period, how the faster third party route differs, and how to choose between them safely.
Understanding token decimals on Base
Jul 7, 2026 · 5 min read
Why does one token show 18 digits after the point and another only 6? Token decimals explain it. Here is what they are, why USDC and ETH differ, and how to read amounts with confidence.
What is a memecoin, and how to think about the risk
Jul 6, 2026 · 5 min read
Memecoins are some of the most traded tokens on Base. This is a calm, plain English look at what they are, why they move the way they do, and how to think about the risk before you swap.
Price impact vs slippage: two costs people mix up
Jul 6, 2026 · 5 min read
Price impact and slippage sound similar and often get confused, but they are two different things. Here is what each one really is, why they matter on a swap, and how to keep both small.
Why random tokens appear in your wallet, and how airdrop scams work
Jul 5, 2026 · 5 min read
Sometimes a token you never bought just shows up in your wallet. Most of the time it is harmless on its own, but the story behind it is often a scam. Here is what is really happening and how to stay safe.
Public and private keys, explained without the math
Jul 5, 2026 · 5 min read
Every self-custody wallet is built on two keys: one you share and one you must never reveal. Here is what each one does, how they relate to your address and recovery phrase, and why this design lets you hold your own money.
When is a Base transaction actually final?
Jul 4, 2026 · 5 min read
Your swap says confirmed, but is it really done? Here is what pending, confirmed, and final mean on Base, why they are not the same thing, and when it is safe to consider a transaction settled.
How to check and revoke token approvals on Base
Jul 4, 2026 · 5 min read
Every swap leaves behind a small permission called an approval. Here is how to see the ones your wallet has granted, and how to cancel the ones you no longer need.
What is an ERC-20 token?
Jul 3, 2026 · 4 min read
Almost every token you swap on Base is an ERC-20 token. Here is what that standard actually is, why it matters, and what it does and does not protect you from.
What is a decentralized exchange (DEX), in plain English
Jul 3, 2026 · 5 min read
A DEX lets you trade tokens directly from your own wallet, with no company holding your money. Here is what that means, how it differs from an exchange like Coinbase, and what to watch out for.
MEV and sandwich attacks, explained for beginners
Jul 2, 2026 · 5 min read
You may have heard that bots can profit from your swaps. Here is what MEV and sandwich attacks actually are, why they are rare on Base, and how slippage settings keep you safe.
How to avoid wallet phishing, fake apps, and drainer scams
Jul 2, 2026 · 6 min read
Most crypto losses do not come from broken code. They come from a person being tricked into approving something. Here is how phishing works and how to stay ahead of it.
What is a smart contract, in plain English
Jul 1, 2026 · 5 min read
Every swap, token, and approval you touch on Base runs through a smart contract. Here is what that actually means, without the jargon, and why it matters for your money.
What is a Basename? Human-readable names for your Base wallet
Jul 1, 2026 · 5 min read
A Basename turns a long 0x address into something readable like yourname.base.eth. Here is what a Basename is, how it works, what it costs, and the trade-offs worth knowing before you register one.
Signature requests explained: what your wallet is really agreeing to
Jun 30, 2026 · 5 min read
Connecting a wallet, signing a message, and confirming a transaction are three different things, and only some of them can move your money. Here is how to tell them apart and stay safe.
Hot wallets and cold wallets, explained
Jun 30, 2026 · 5 min read
A hot wallet stays connected to the internet, a cold wallet stays offline. Here is what that difference means, when each one makes sense, and how to use both together.
Why a transaction fails on Base, and what to do about it
Jun 29, 2026 · 5 min read
Sometimes you confirm a swap and it comes back as failed, yet a small fee still leaves your wallet. Here is why that happens, what the common causes are, and the calm steps to fix each one.
Wrapped ETH (WETH): why your swap sometimes wraps your ETH
Jun 29, 2026 · 5 min read
ETH is the coin that pays for everything on Base, yet many swaps quietly turn it into a token called WETH first. Here is what wrapping means, why it happens, and why you do not need to worry about it.
Sending and receiving tokens on Base: how addresses work, and how to avoid costly mistakes
Jun 28, 2026 · 5 min read
A wallet address is the only thing standing between your money and the wrong destination. Here is how addresses work on Base, how to send and receive safely, and the address scam worth knowing about.
Lost or upgraded your phone? How to recover your wallet
Jun 28, 2026 · 6 min read
Your wallet does not live on your phone, it lives behind your recovery phrase. Here is exactly how to restore it on a new device, and how to avoid the mistakes that lose people their funds during recovery.
Understanding gas fees on Base
Jun 27, 2026 · 5 min read
Every blockchain transaction pays a small network fee called gas. Here is what gas is, why it exists, why it is so cheap on Base, and how to avoid the few situations where it can spike.
How a token swap actually works under the hood
Jun 27, 2026 · 6 min read
Tap swap and two tokens trade places in seconds. Behind that tap is a liquidity pool and a simple piece of math. Here is what really happens, in plain English.
Stablecoins on Base: what USDC is and how to use it safely
Jun 26, 2026 · 4 min read
USDC is a dollar-pegged token, and Base has two versions of it. Here is what a stablecoin actually is, how to tell native USDC from the bridged kind, and the risks worth understanding.
How to use a block explorer to check your Base transactions
Jun 26, 2026 · 5 min read
A block explorer is a public window into the Base network. Here is how to use BaseScan to confirm a transaction, read your wallet history, and check a token before you trust it.
Token approvals: the hidden permission behind every swap
Jun 25, 2026 · 4 min read
Before a wallet can swap one token for another, you grant an approval. Here is what that permission really does, why it matters for safety, and how to keep it tidy.
How to bridge assets to Base, and how to do it safely
Jun 25, 2026 · 5 min read
Bridging moves your crypto from one network onto Base. Here is what that actually means, which bridges Base itself points to, and the checks worth doing before you confirm.
Why we built a wallet for exactly one network
Jun 12, 2026 · 3 min read
Every other wallet adds chains. We removed them. The case for a wallet that does one network properly, and what that buys you in practice.
What is Base? A plain-English guide
Jun 12, 2026 · 3 min read
Base is an Ethereum layer 2 built by Coinbase. Here is what that means, why fees are so low, and why we chose it for Simple Base Swap.
What a swap actually costs: fees and slippage explained
Jun 12, 2026 · 3 min read
Every swap has three costs: the service fee, the network fee, and slippage. Here is what each one is, what we charge, and how to keep all three low.
Why strange tokens appear in your wallet, and what to do about them
Jun 12, 2026 · 3 min read
Sooner or later a token you never bought shows up in your balance, with a website in its name and a deadline to claim something. Here is what that is.
Self-custody, explained simply
Jun 12, 2026 · 3 min read
What non-custodial actually means, how recovery phrases work, and the safety habits that keep your crypto yours.
Your recovery phrase: the only backup that matters
Jun 12, 2026 · 3 min read
The recovery phrase is the master key to your wallet. Here is how to store it properly, what never to do with it, and how scammers try to get it.
How to get ETH on Base: the three easiest ways
Jun 12, 2026 · 3 min read
Your wallet is ready but empty. Here are the three simplest ways to fund it with ETH on the Base network, and the one mistake to avoid.
Adding custom tokens: how to find a contract address you can trust
Jun 12, 2026 · 3 min read
Any Base token can be added to your wallet by pasting its contract address. The skill worth learning is finding the right address, because tickers can lie.
Welcome to Simple Base Swap
Jun 9, 2026 · 1 min read
A non-custodial wallet and token swap for the Base network. Here is what it is and how to get started.