Crypto guides
The handful of things that actually cost people money — networks, transfers, payment rails and access — explained once, properly, with the numbers attached.
- FinCEN-registered MSB
- NMLS ID 1804170 · 40+ US state licences
- Operating since 2013
CEX.IO is not accepting new retail clients in your region, so we are not linking to it here. See which exchanges do serve you, or .
Add a network to MetaMask
Verified RPC URLs, chain IDs and explorers for 26 EVM chains, with one-click add.
Exchange availability by country
Which exchanges serve your country — and where you can open an account but not trade.
Buy crypto with PayPal
Three routes compared on what they actually cost, plus the cheaper one most people skip.
USDT on TRC20
TRC20 vs ERC20 vs BEP20, real transfer costs, and how not to lose funds to the wrong chain.
Written to be used once and not needed again
These guides exist because the same handful of questions cost people real money over and over: which network to send on, which interface to buy from, whether an exchange will even accept them. Each one gives you the answer, the arithmetic behind it, and the failure mode to avoid — then gets out of the way.
Where a guide needs live data — gas prices, fee comparisons — it links to the dashboards rather than quoting a number that will be wrong next week.