Blog
Practical guides to moving crypto between tokens and chains: how swaps and bridges work, which network to use for USDT, what gas fees cost, and how to stay safe while doing it.
What Is jEUR? Jarvis Euro Explained and How to Swap jEUR to EURC
jEUR is Jarvis Network's synthetic euro. What it is, what happened to its credit lines in 2024, where it still trades, and how to swap jEUR to EURC or USDC.
What Is EURC? Circle's Euro Stablecoin vs USDC, EURe and jEUR
What EURC is, how it differs from USDC, which networks it runs on, how it compares with other euro stablecoins like EURe and jEUR, and how to swap into it.
Solana Fees: Base Fee, Priority Fees and What a Swap Costs
Solana fees explained: the 5,000 lamport base fee, priority fees, the rent deposit for new token accounts, and live costs for a transfer and a swap.
Sent Crypto to the Wrong Address? What Can Be Recovered and How
Sent crypto to the wrong address? What happens in each case (typo, contract address, missing memo, poisoned address), when recovery is possible and what to do first.
Polygon Gas Fees: What a Transaction Costs on Polygon Today
Polygon gas fees explained: why gas prices in gwei look high but cost fractions of a cent, live costs for a transfer and a swap, POL as the gas token and how to get it.
Liquid Exchange Shut Down: What Happened After FTX and Where Claims Went
Liquid (Liquid Global) was bought by FTX and suspended withdrawals on November 15, 2022. What happened, how customer claims moved into the FTX bankruptcy and how to swap safely.
Hotbit Exchange Shut Down: What Happened and What to Do Now
Hotbit halted its exchange on May 22, 2023 and set a June 21 withdrawal deadline. What happened, why it closed, what to do if you still had funds and how to swap safely.
Base Gas Fees: How Much a Transaction Costs on Base
Base gas fees explained: L2 execution fee plus L1 data fee, live costs for a transfer and a swap, why Base is cheap after Dencun and how to get ETH on Base.
Avalanche Gas Fees: What a Transaction Costs on Avalanche C-Chain
Avalanche gas fees explained: nAVAX gas price on the C-Chain, live costs for a transfer and a swap, why AVAX is needed and how to get it in one swap.
Arbitrum Gas Fees: What Transactions Cost on Arbitrum One
Arbitrum gas fees explained: L2 gas plus the L1 data component, live costs for a transfer and a swap on Arbitrum One and how to get ETH for gas.
STEX Exchange Shut Down: What Happened and Safe Alternatives
STEX (formerly Stocks.exchange) stopped working in June 2023 and users lost access to funds. What happened, why the 'relaunch' is a red flag and how to swap safely.
Step Wallet: Best Wallet for STEP and FITFI Tokens in 2026
Which wallet holds STEP (Solana) and FITFI (Avalanche) after Step Finance and Step App closed, how to add the tokens, check balances and swap them safely.
Step Hero and Step Hero Soul (STEP): What Happened to HERO
Step Hero was a BNB Chain play-to-earn RPG with the HERO and STEP (Step Hero Soul) tokens. Its site has been offline since May 2026. Status, prices and how to swap.
Step Finance Shut Down: What Happened to STEP and What to Do Now
Step Finance closed in February 2026 after a $27M treasury hack. What happened, how the STEP buyback worked, what STEP is worth now and how to swap it.
Step DEX (StepEx) and Step Exchange: History of step.exchange
What step.exchange was (StepEx, the Step Network DEX with the SPEX token and 2022 lockdrop) and what Step Exchange is today: a cross-chain swap on 60+ chains.
Step App Shut Down: What Happened to FITFI and Step Network
Step App ended its move-to-earn services on August 21, 2026 and FITFI fell 99.9%. What happened, what FITFI is worth now and how to swap it on Avalanche.
Remora Markets Shut Down: rTokens, Redemption and Alternatives
Remora Markets, the Solana tokenized-stock platform of Step Finance, wound down in February 2026. What happened to rTokens like TSLAr and NVDAr, the USDC exit and where to hold tokenized stocks now.
What Is WETH? Wrapped Ether Explained and How to Unwrap It
WETH is ETH wrapped as an ERC-20 token, always 1:1 with ETH. Why DeFi uses it, how wrapping and unwrapping work, WETH on layer 2s and common mistakes.
What Is USDT0? Tether's Omnichain USDT Explained
USDT0 is the omnichain version of USDT built on LayerZero's OFT standard. How it works, which chains use it, how it differs from USDT and how to move it.
What Is an Intent-Based Bridge? Why Some Bridges Take Seconds
How intent-based bridges like Across, Relay and Mayan Swift deliver in seconds: intents, solvers and settlement, ERC-7683, costs and risks, with live times from our route check.
What Is a Layer 2? Arbitrum, Base and Optimism Explained
What a layer 2 is: networks that run on top of Ethereum, inherit its security and cut fees to cents. Arbitrum, Base, Optimism compared, and how to bridge to them.
What Is a Chain ID? EVM Network IDs Explained With a Table
A chain ID is the number that identifies an EVM network and protects transactions from replay. Chain IDs of Ethereum, Arbitrum, Base, BNB Chain, Polygon and more.
Token Approvals Explained: What You Sign Before a Swap
What a token approval is, why swaps and bridges ask for it, the risk of unlimited approvals, Permit and Permit2 signatures, and how to check and revoke approvals.
Sent Crypto to the Wrong Network? How to Recover It
Sent USDT, ETH or USDC on the wrong network? What happens to the funds, when they can be recovered, and step-by-step fixes for your own wallet and for exchanges.
How to Add a Network to MetaMask: Arbitrum, Base, BNB, Polygon
Add Arbitrum, Base, Optimism, BNB Chain, Polygon or Avalanche to MetaMask in three ways: built-in list, Chainlist or manual RPC. Official RPC, chain ID and explorer table.
How Long Does Bridging Crypto Take? Real Times by Route
How long a crypto bridge takes: seconds for intent-based routes, about 18 minutes for standard Circle CCTP, 20+ minutes from Bitcoin. Live times from 30 routes.
Gas Tokens by Chain: Which Coin Pays Fees on Each Network
Which token pays gas on Ethereum, Arbitrum, Base, BNB Chain, Polygon, Avalanche, Solana, Tron and more, and how to get gas on a new network after bridging.
ERC-20 vs BEP-20 vs TRC-20: Which USDT Network to Choose
ERC-20, BEP-20 and TRC-20 compared: networks, address formats, gas tokens, compatibility and which one to pick when sending USDT or USDC.
Crypto Bridge Fees Explained: What You Actually Pay
Crypto bridge fees broken down: source gas, bridge or relayer fee, destination gas, service fee and slippage. How to compare routes and keep costs low.
Cross-Chain Swap Failed or Stuck? What to Do Step by Step
Cross-chain swap or bridge pending, failed or delivered the wrong token? How to find where the funds are, what each status means and how to get a refund or finish the transfer.
Cheapest Way to Move USDT Between Networks and Wallets
How to move USDT cheaply: pick the right network, avoid Ethereum mainnet for small amounts, use USDT0 and aggregator routes, and compare exchange withdrawals.
Bridged vs Native USDC: USDC.e vs USDC Explained
The difference between native USDC and bridged USDC.e on Arbitrum, Optimism and Polygon, why exchanges treat them differently, and how to convert one into the other.
What Is Wrapped Bitcoin? WBTC, cbBTC and tBTC Explained
What wrapped bitcoin is: WBTC, cbBTC and tBTC compared, custody and trust, the 2024 WBTC custody change, risks and when to use it.
What Is a DEX Aggregator? How It Finds the Best Swap Rate
What a DEX aggregator is, how it splits trades to cut price impact, aggregators vs single DEXs, cross-chain aggregators and how to choose one.
What Is a Cross-Chain Swap? Swap Tokens Across Networks in One Step
What a cross-chain swap is: swap a token on one network for a different token on another in one flow. Routes, fees, time and wallets needed.
Polygon Bridge Guide: Move Funds Between Polygon and Ethereum
How to use a Polygon bridge: move ETH, USDT or USDC between Polygon and Ethereum, Polygon Portal vs aggregators, timing and POL for gas.
How to Bridge to Base: ETH, USDC and Other Tokens
How to bridge to Base from Ethereum, Arbitrum or Solana: aggregator routes vs the official bridge, timing, ETH for gas and bridging back.
How to Bridge ETH to Solana: Get SOL or Wrapped ETH
How to bridge from Ethereum to Solana: receive SOL, USDC or wrapped ETH, which routes work, Solana addresses, fees and mistakes to avoid.
How to Bridge ETH to Arbitrum: Fast Routes vs the Official Bridge
How to bridge ETH to Arbitrum: fast third-party routes vs the official bridge, timing (minutes in, about 7 days out), fees and how to bridge back.
Crypto Bridge Hacks and How to Bridge Safely
The biggest crypto bridge hacks (Ronin, Wormhole, Nomad, Multichain), why bridges get exploited and a checklist to bridge crypto safely.
Cross-Chain Bridges Explained: How Crypto Bridges Work
How cross-chain crypto bridges work: lock-and-mint, burn-and-mint, liquidity networks and rollup bridges, with trade-offs and how to pick one.
What Is Slippage in Crypto? Slippage Tolerance Explained
What slippage means in crypto: quoted vs executed price, slippage vs price impact, how to set tolerance, failed trades and sandwich attacks.
USDT Networks Explained: ERC-20 vs TRC-20 vs Solana and More
Which network is USDT on? ERC-20, TRC-20, Solana, Arbitrum, BNB Chain compared on fees and speed, and what to do after a wrong-network send.
How to Bridge USDT Between Networks: Step-by-Step Guide
How to bridge USDT between Ethereum, Tron, Solana, Arbitrum and BNB Chain: aggregators vs exchanges, fees, timing, gas and mistakes to avoid.
ETH Gas Fees Explained: How Ethereum Fees Work and How to Pay Less
ETH gas fees explained: gas units, base and priority fees, gwei, why fees spike, how layer 2s cut costs after Dencun and ways to pay less.