Stake on Puffer Finance

WHAT IT DOES

This tool enables you to stake native ETH on Puffer Finance, a liquid staking protocol that combines Ethereum staking with EigenLayer restaking capabilities. It reads your current ETH balance on Ethereum Mainnet, the Puffer Finance staking contract details, and the current gas price to provide an accurate cost estimate before you commit. The tool then constructs and submits a transaction to the Puffer Finance contract, depositing your specified amount of ETH and receiving pufETH (Puffer's liquid staking token) in return.

Puffer Finance is a next-generation liquid staking protocol that incorporates anti-slashing technology to reduce the risk of validator penalties, making it one of the most secure staking solutions available. pufETH represents your staked ETH position and automatically accrues staking rewards from Ethereum validation and, optionally, restaking rewards from EigenLayer AVSs. The protocol's native restaking integration allows your staked ETH to secure additional services while maintaining liquidity through pufETH.

HOW TO USE

Connect your wallet using the "connect" button. Ensure you are connected to Ethereum Mainnet (chain ID 1) — the tool will display your current chain ID, ETH balance, and any existing pufETH balance. Enter the amount of ETH you wish to stake in the input field. The tool will display the staking contract address and estimate the gas cost for the deposit transaction.

Review the stake summary, then click "stake on Puffer Finance" to sign and submit the transaction through your wallet. The tool will wait for confirmation and display the transaction details on Etherscan. After the transaction is confirmed, you will receive pufETH in your wallet representing your staked ETH position. Your pufETH balance will automatically accrue staking and restaking rewards over time, and you can monitor it through the tool's balance display. pufETH can be used across the DeFi ecosystem, including lending platforms, liquidity pools, and as collateral for borrowing.

TECHNICAL MECHANISM — PUFFER FINANCE LIQUID STAKING WITH ANTI-SLASHING

The tool interacts with the Puffer Finance pufETH contract, which implements the depositETH() function. This function accepts ETH as value and handles the underlying mechanics of depositing ETH into Puffer's staking infrastructure and minting pufETH tokens in return. When you call depositETH(), the Puffer contract forwards your ETH to a secure staking pool that utilizes Puffer's proprietary anti-slashing technology.

Puffer's anti-slashing technology is implemented through Secure Enclave (SGX) technology and a novel consensus mechanism that significantly reduces the risk of validator slashing events. This makes Puffer one of the safest liquid staking protocols in the ecosystem. In return for your deposit, the contract mints pufETH tokens at a rate determined by the current exchange rate between ETH and pufETH. pufETH is an ERC-20 token that represents your claim on the underlying staked ETH plus accumulated rewards. The protocol natively integrates with EigenLayer, allowing your staked ETH to be restaked to secure AVSs without additional deposits or complexity. The amount of pufETH you hold stays constant, but its value in ETH increases over time as rewards accumulate from both Ethereum staking and EigenLayer restaking. The withdrawal process requires burning pufETH and going through Puffer's withdrawal queue, which is subject to EigenLayer's withdrawal timeline.

WHAT IT CANNOT SEE

This tool cannot estimate exact gas costs without a live RPC call, and gas prices on Ethereum Mainnet may change between quoting and execution. It cannot guarantee yield rates or APR, as these depend on Ethereum network conditions and EigenLayer AVS performance. The tool cannot verify the staking contract address is correct beyond the pre-configured mapping, and if the mapping becomes outdated, the transaction could fail or be sent to the wrong contract. It cannot cancel a transaction once submitted, and if the transaction fails due to gas issues or contract errors, you may still pay gas fees. The tool cannot interact with non-Ethereum chains or provide immediate withdrawal functionality — withdrawals require burning pufETH and going through Puffer's withdrawal process, which can take several days. The tool cannot handle staking of tokens other than native ETH.

PLEASE NOTE — ETHEREUM MAINNET ONLY

This tool works exclusively on Ethereum Mainnet (chain ID 1). You must be connected to Ethereum Mainnet to use this tool. It does not support other networks or layer 2 solutions. The tool only stakes native ETH and returns pufETH — it does not support other assets. pufETH is a value-accruing liquid staking token that appreciates against ETH over time through staking and restaking rewards. It also carries the risks of the underlying staking and restaking protocols, including slashing risks from both Ethereum validator misbehavior and EigenLayer AVS misbehavior. Puffer's anti-slashing technology significantly reduces but does not eliminate slashing risk. pufETH's value is generally pegged to ETH but may trade at a discount in volatile markets. Always verify the staking contract address before submitting a transaction. This tool provides a simple deposit interface; withdrawals are not supported and must be performed through Puffer's official mechanisms.