Understanding the Architecture Behind Firelight Vaults

Vaults are smart contracts that allow users to deposit assets and receive liquid staking tokens (LSTs) in return. When you deposit tokens into a vault, you receive a receipt token (the LST) that represents your proportional share of the value of your tokens in the vault.

This token — a representation of your staked assets — has a variety of applications across DeFi. Some popular uses include trading the LST, transferring it, and using it as collateral to borrow against. While the original asset remains staked, LST holders benefit from liquidity and flexibility.

Let’s dive into how vaults are designed on Firelight.

How are Vaults Designed on Firelight?

On Firelight, vaults are the core smart contracts responsible for managing staked tokens (e.g., FXRP) and issuing a liquid staking token (in this example, stXRP). They are built to perform three core functions: asset management, issuing LSTs, and delegating security.

Vaults handle all aspects of asset management. When a user deposits a token, the vault secures the tokens in a smart contract and manages all custody from deposit to withdrawal. Every transaction is recorded on-chain, making it easily verifiable.

The second core function is LST issuance. During Phase 1 of Firelight’s launch, stXRP is minted in proportion to the amount of FXRP deposited and the prevailing exchange rate. Each stXRP is fully backed by the underlying FXRP. The exchange rate adjusts over time to reflect staking rewards or potential slashing events — though slashing will not be enabled in Phase 1. Upon withdrawing your FXRP, the corresponding amount of stXRP will be automatically burned.

Finally, security is allocated to Economically Secured Services (ESS) via operators. ESSes monitor operator performance. In Phase 2 of the launch — which will introduce multiple vaults supporting multi-asset deposits — the protocol will implement slashing mechanisms to penalize underperforming operators. This helps maximize rewards while maintaining security across vaults.

Architecture of the Launch Vault (Phase 1)

The launch vault is built on the ERC-4626 standard, ensuring seamless compatibility and integration with the broader DeFi ecosystem. It’s created to be fully non-custodial, meaning users always maintain control over their underlying assets.

In this initial phase, the launch vault exclusively accepts FXRP deposits. For each FXRP deposited, the protocol issues its liquid staking token, stXRP, at a starting exchange rate of 1:1. A key advantage for early adopters is that there is zero slashing risk during this introductory period, providing a secure environment for participation.

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stXRP — The First LST on Firelight

Upon launch, users receive stXRP, a liquid staking token that represents a user’s staked XRP position while remaining fully liquid. stXRP is an ERC-20, a standard token designed for EVM compatibility with wallets and can be easily integrated across DeFi. Fully transferable, the token can be used to send, trade or be used as collateral to borrow against.

In Phase 1, stXRP can be deployed across Flare Network’s expansive DeFi ecosystem.

Deploying stXRP across DeFi

stXRP unlocks a wide range of DeFi opportunities, allowing holders to do much more than simply earn staking rewards.

The token can be swapped on Decentralized Exchanges (DEXs), used as collateral in lending protocols to borrow other assets, or used to provide liquidity in DEX pools. This enables holders to stack multiple sources of return, such as trading fees or lending interest, on top of their base staking yield. In the future, stXRP will also serve as a foundation for more advanced financial products, including derivatives and leveraged trading opportunities.

The Core Benefit of Liquid Staking — Improved Capital Efficiency

Liquid staking fundamentally solves the core dilemma of traditional staking by eliminating the choice between earning staking rewards and maintaining asset liquidity.

This removes the classic opportunity cost associated with locking up capital, as your staked assets remain productive and accessible. It empowers users to engage in multiple DeFi strategies simultaneously, while potentially earning a base staking yield. Ultimately, this provides users with the flexibility to actively optimize their portfolio.

Maintaining Market Equilibrium and Opportunities for Arbitrage

The protocol has built-in economic mechanisms designed to keep the price of stXRP stable and closely aligned with its fair value. As minting and redeeming stXRP from the vault is permissionless, any market participant can arbitrage price discrepancies between stXRP and FXRP.

The way the vault is designed creates a natural arbitrage loop. When stXRP trades at a discount on the open market, arbitrageurs can purchase the discount tokens and redeem them through the protocol for the underlying FXRP, capturing a profit. This buying pressure increases the demand for stXRP, pushing the price up.

Conversely, if stXRP trades at a premium, users are incentivized to deposit FXRP and mint new stXRP at fair value, and then sell it on the market for a profit. This increases the token supply and helps bring the price back down toward equilibrium.

This process is supported by a short unbonding period — less than two days in Phase 1 — allowing arbitrage opportunities to be executed efficiently and minimizing the risk of stXRP deviating from its peg.

Future Plans

To ensure a robust and stable trading environment, we plan to establish deep liquidity pools on major decentralized exchanges (DEXs). There will be incentives to reward users for providing liquidity — fostering a strong and sustainable ecosystem for stXRP.

In addition, for reliable pricing data, we’re integrating decentralized price feeds from Flare Time Series Oracle (FTSO).

Our meticulously designed vaults represent an evolution in liquid staking, centered on security, capital efficiency, and seamless integration with the wider DeFi ecosystem. The initial launch phase strategically minimizes risk for early adopters with zero-slashing risks, while the inherent arbitrage loop ensures stXRP maintains its peg to the underlying FXRP. This foundational design empowers users to potentially stack multiple yield sources and unlocks new layers of utility for their staked assets.

Looking ahead, in Phase 2, the introduction of multi-asset vaults, deep liquidity pools, and oracle integrations is poised to establish a robust and dynamic ecosystem, fundamentally enhancing how users interact with and benefit from traditional staking protocols.