Read before you send.

Yes, the rate is shown upfront. The exchange fee is already inside the number you see, and the quote binds your amount, so there is no surprise at the end.

The same coin can travel on several networks, and each one trades off fee, speed, and finality. Here is how to pick the payout network that fits what you actually need.

Floats lose money. Store every crypto payment amount as an integer in the asset's smallest unit, and convert to a decimal string only when you show it.

Verify the signature header, check the timestamp, make your handler idempotent, and return 2xx fast. The four rules that keep a payment webhook from lying to your database.

You can take crypto payments for your business without running wallets, watching the chain, or holding customer funds. Create an invoice, share a checkout link, get settled, and read it all in one cabinet.

The amount on screen is locked to the rate you were quoted. Send a different number and the rate may no longer hold, so your swap needs a manual look before it can finish.

A swap is one job: convert coins and walk away. An account is an ongoing relationship that holds your funds and your data. Here is when each one makes sense.

A refund address is where your coins come back if a swap can't finish. Set one on the same chain as the coin you send, and a rare failure stays a small delay instead of a lost deposit.

Yes. You can swap one coin for another without signing up, without a password, and without handing over an inbox. Here is how the no-account flow works and the honest limits of it.

Swap USDT to XMR with no account: paste your Monero address, see the rate first, send the amount shown, and the payout lands in your wallet. Here is the full flow and the privacy you actually get.

Change USDT on the TRON network into Bitcoin in a few minutes, with no signup. Pick the pair, read the rate, paste your BTC address, send the exact amount.