First trade needs a one-time GOOGLon approval; after that each trade is a single signature. A relayer then turns your USDT into GOOGLon — an Ondo tokenized stock, minted/redeemed 1:1 against the real share (not a pool swap) — and completes the curve trade. Non-custodial, you pay no gas. Stockie does not issue or custody the stock.
