# Unichain data apps > Unichain is Uniswap's OP Stack layer 2, built for trading with fast blocks. Its apps cover gas, activity, swaps and its place in the Superchain. Markdown copy of https://voltfincrypto.com/chains/unichain ## Ethereum - [Multicall3, Permit2 and EntryPoint Addresses by Chain](https://voltfincrypto.com/apps/multicall3-permit2-entrypoint-addresses) (table, planned): Is Multicall3, Permit2 or an ERC-4337 EntryPoint deployed on a given chain, at its usual address and with the expected code? ## Layer 2s - [Ethereum TPS: Mainnet and Layer 2 Transactions per Second](https://voltfincrypto.com/apps/ethereum-tps) (dashboard, planned): How many transactions per second do Ethereum and its layer 2s process right now, in total and per chain? - [Ethereum Layer 2 List Ranked by Activity, Fees and Value](https://voltfincrypto.com/apps/ethereum-layer-2-list) (table, planned): Which Ethereum layer 2s are the largest by transactions, users, fees and value locked? - [Ethereum L2 Fees Compared: Cost per Transaction](https://voltfincrypto.com/apps/ethereum-l2-fees) (dashboard, planned): Which Ethereum layer 2 is cheapest for a transfer or a swap right now? - [Ethereum L2 TVL: Value Locked in Rollup Bridges](https://voltfincrypto.com/apps/ethereum-l2-tvl) (dashboard, planned): How much value is locked on each Ethereum layer 2, and how much of it sits in canonical bridges on Ethereum? - [L2 Profitability: Fees Earned vs Costs Paid to Ethereum](https://voltfincrypto.com/apps/l2-profitability) (dashboard, planned): How much does each Ethereum layer 2 earn from user fees, and how much does it pay Ethereum? - [Top Ethereum L2s: Monthly League Table of Rollups](https://voltfincrypto.com/apps/top-ethereum-l2s-monthly) (report, planned): Which Ethereum layer 2s grew or shrank the most this month by activity, fees and value locked? - [EVM Chain List: Chain IDs, Native Tokens and RPC Support](https://voltfincrypto.com/apps/evm-chain-list) (table, planned): What is the chain ID and native token of each EVM chain, and which RPC methods do its public endpoints support? - [Unichain Stats: Transactions, Gas and Uniswap Trading](https://voltfincrypto.com/apps/unichain-stats) (dashboard, planned): How busy is Unichain, how much trading runs on it and how much of its sequencer revenue reaches the UNI burn? - [L2 Bridge Flows: Net Deposits from Ethereum by Chain](https://voltfincrypto.com/apps/l2-bridge-flows) (dashboard, planned): Which layer 2s are gaining or losing assets through their canonical bridges with Ethereum? - [L2 Withdrawal Times to Ethereum by Rollup](https://voltfincrypto.com/apps/l2-withdrawal-times) (dashboard, planned): How long does a native withdrawal from each layer 2 to Ethereum take right now? - [OP Stack Chains: The Superchain List Compared](https://voltfincrypto.com/apps/op-stack-superchain-chains) (table, planned): Which chains run on the OP Stack, which belong to the Superchain and how do they compare? - [Across Protocol Bridge: Volume, Relayer Fees and Fill Times](https://voltfincrypto.com/apps/across-bridge-volume) (dashboard, planned): How much moves through the Across bridge on each route, what does it cost and how fast do relayers fill it? - [WETH and Wrapped BTC Token Addresses by Chain](https://voltfincrypto.com/apps/wrapped-btc-eth-token-addresses) (table, planned): What is the WETH, WBTC or cbBTC contract address on each chain, and who issues or backs each one? - [Rollup Decentralization: Upgrade Keys and Exit Windows](https://voltfincrypto.com/apps/rollup-decentralization) (table, planned): Who can upgrade each rollup's bridge contracts, and how much notice do users get before an upgrade? - [L2 Sequencer Uptime: Block Production Gaps by Chain](https://voltfincrypto.com/apps/l2-sequencer-uptime) (dashboard, planned): Is each Ethereum layer 2 producing blocks on schedule, and when did block production last stall? ## Stablecoins - [RLUSD Supply by Chain: Ripple USD on XRPL and Ethereum](https://voltfincrypto.com/apps/rlusd-supply-by-chain) (dashboard, planned): How much RLUSD is issued on the XRP Ledger and on Ethereum, and where is it growing? - [Sky Savings Rate, USDS and DAI Supply](https://voltfincrypto.com/apps/sky-savings-rate-usds-dai) (dashboard, planned): What is the Sky Savings Rate today, and how much USDS is earning it? - [USDC CCTP and USDT0 Cross-Chain Flows](https://voltfincrypto.com/apps/usdc-cctp-usdt0-cross-chain-flows) (dashboard, planned): How much USDC and USDT moves between chains through CCTP and USDT0 each day, and on which routes? ## DeFi - [Uniswap Fee Switch: UNI Burned and Protocol Fees](https://voltfincrypto.com/apps/uniswap-fee-switch-uni-burn) (dashboard, planned): How much UNI has been burned since the Uniswap fee switch went live? - [Uniswap Volume, Fees and TVL by Version and Chain](https://voltfincrypto.com/apps/uniswap-volume-fees-tvl) (dashboard, planned): How much trades on Uniswap each day, what do its liquidity providers earn and where does its liquidity sit? - [Uniswap v4 Hooks: Volume and Liquidity by Hook](https://voltfincrypto.com/apps/uniswap-v4-hooks) (table, planned): Which Uniswap v4 hooks attract the most volume and liquidity? - [Compound v3 Markets: Rates, Collateral and Reserves](https://voltfincrypto.com/apps/compound-v3-markets) (dashboard, planned): What do Compound v3 markets pay and charge today, and how much collateral and reserves stand behind each one? - [Euler v2 Vaults: Deposits, Loans and Liquidations](https://voltfincrypto.com/apps/euler-v2-vaults) (dashboard, planned): How much is lent through Euler v2 vaults, on what terms and under whose risk settings? ## Security and risk - [EIP-7702 Delegation Checker: Is Your Wallet Delegated?](https://voltfincrypto.com/apps/eip-7702-delegation-checker) (dashboard, planned): Is this wallet delegated under EIP-7702 on any chain, and does its delegate contract sweep incoming funds?