API Keys: The Permissions You Should Never Grant
Trade permission is normal. Withdrawal permission is not. IP allowlists and key rotation cost ten minutes and remove most of the risk.
A Merkle tree shows assets at a moment. Solvency needs liabilities too, and most published attestations stop short of that.
Maker and taker at the entry tier, plus spread, plus withdrawal, plus conversion. The headline number is the smallest one.
Overnight financing is set by your broker, applied on both sides of many pairs, and large enough to decide whether a swing approach works at all.
Thirty to one or five thousand to one is not a product feature. It tells you which rulebook your account sits under.
Raw liquidity, broker markup, and a variable component that widens exactly when you need it not to. How to measure each part.