lst_swap

ing.crank/crank · Verify this server

Swap between two LSTs via the Sanctum router (non-custodial). from_lst/to_lst are mints; amount in base units. Returns an UNSIGNED base64 tx + output amount. The technology service fee is charged on the input-LST notional past the daily free tier (x402 payment_header). The acquired LST (to_lst) is authenticity-verified first; set allow_unverified=true to swap into an unverified LST at your own risk. ``idempotency_key`` (optional): a client-generated UUID. Retrying with the same key + same args replays the original result instead of re-swapping. Reuse the SAME key across the build call and its ``signed_transaction`` completion call -- see liquid_stake; the two legs dedupe independently, so this never raises IDEMPOTENCY_CONFLICT. ``signed_transaction`` / ``verify`` (two-phase execution): see liquid_stake -- re-call with the signed tx and Crank broadcasts it, confirms it on-chain, and re-reads both LST balances.