UNDERSTAND. CHECK. PRACTISE.
Your crypto toolkit.
Understand before acting.
What will my purchase really cost? What does this signature allow? Am I using the right network? Five practical resources to see what matters before acting.
Pick the question you have today.
CALCULATOR · CRYPTO FEES
Crypto fee calculator: how much is left from €100?
Understand commission, markup and withdrawal using a documented Coinbase example, three explained exercises and a free fee calculator.
ExploreEXERCISE · WALLET SECURITY
MetaMask: disconnect, revoke, what should you check?
Learn to read a MetaMask request: documented Uniswap and USDC examples, plain definitions, four situations with hints and detailed explanations.
ExploreCHECKLIST · CRYPTO TRANSFER
Crypto transfer: check the network before sending
Understand asset, network and memo through sourced USDC and XRP examples, four explained exercises and a detailed pre-transfer checklist.
ExploreTROUBLESHOOTING · ETHEREUM
Failed Ethereum transaction: why did I pay gas?
Failed transaction but fees charged? Distinguish rejection, pending status and an on-chain failure. Understand consumed gas with a worked example.
ExploreTROUBLESHOOTING · PENDING TRANSACTION
MetaMask transaction stuck pending: what to check
MetaMask transaction still pending? Check hash, network and nonce. Understand waiting, speeding up and attempted cancellation without resetting everything.
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