Echo Liquid Staking

eAPT is an LST of APT to collect staking rewards from Aptos validators. Users can deposit APT into the Echo LSD protocol at any time to exchange it for eAPT, enabling them to earn staking rewards on their deposited APT.

## Overview Echo Liquid Staking is a liquid staking derivative (LSD) protocol built on Aptos that converts APT tokens into eAPT, a yield-bearing token. The protocol allows users to deposit APT and receive eAPT in return, which accrues staking rewards from Aptos validators without locking tokens or meeting minimum stake amounts. The mechanism addresses a core inefficiency in proof-of-stake networks: the opportunity cost of capital. By staking APT through Echo, users maintain liquidity—they can trade, transfer, or use eAPT in DeFi applications while simultaneously earning staking yields. This du