Guides, tutorials, and insights on L2 gas fees
How Unichain gas fees work, what Uniswap v4 swaps, token sends, approvals, and LP actions cost in 2026, why the fee can still spike, and how much ETH you actually need to bring.
Read moreUnichain is Uniswap Labs' own Ethereum Layer 2 — an OP Stack rollup with one-second blocks and Flashblocks. What it is, who uses it, how it relates to Base and the Superchain, and what UNI holders get from it.
Read moreAave V3 is deployed on Base. Here is the step-by-step for supplying assets, borrowing against them, and withdrawing — with the real gas cost of each action (under $0.01) and the risks nobody mentions.
Read moreWithdrawing ETH or tokens from Arbitrum to Ethereum mainnet: the official 7-day bridge (cheap, slow), fast bridges (minutes, 0.1% fee), and why the challenge window exists. Real costs and step-by-step for both routes.
Read moreBase Sepolia is the testnet for Base. Here are the working faucets (Alchemy, Chainlink, official), how much they drip, rate limits, and what testnet ETH is actually for — plus how to add the network to your wallet.
Read moreBasescan is Etherscan for Base. Here is how to look up any transaction, read a smart contract, verify a token is legitimate, debug a failed swap, and use the API — with screenshots from real receipts.
Read moreMetaMask is the default; Coinbase Wallet has Smart Wallet features that make Base nearly gasless. Real comparison of fees, recovery, security models, DeFi access, and which wallet fits which person on Base and Arbitrum.
Read moreL2 transactions rarely sit pending for long, but when one does it blocks every transaction after it. Speed up vs cancel, the MetaMask custom-nonce steps, why a reverted swap is not a stuck one, and what the whole rescue costs on Base.
Read moreA native USDC transfer on Base costs under $0.01 and confirms in about 2 seconds — versus $1–10+ on Ethereum and 3–5% cross-border on PayPal. The real fee math, native USDC vs USDC.e, and the one thing you still need: a little ETH.
Read moreETH already on Ethereum? The official Base bridge costs a few dollars in mainnet gas and takes 10 minutes in, 7 days out. Fast bridges like Across and Stargate do both directions in minutes, and exchange direct withdrawals cost about a dime. Every route with real 2026 fees.
Read moreDon't bridge down to Ethereum and back up — that pays two mainnet transactions and can add a 7-day wait. Intent bridges like Across and Stargate move ETH or USDC directly between L2s in minutes, typically for under a few dollars. Routes, 2026 fees, and the CCTP trick for USDC.
Read moreBase is Coinbase's Ethereum Layer 2: sub-cent fees, roughly 2-second blocks, no native token (ETH pays gas). What it actually is, how Coinbase is and isn't involved, whether it's safe, and who should use it.
Read moreChoose a trusted platform to swap, bridge, and trade on L2 networks.
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