# ZKsync data apps

> ZKsync Era is a zero-knowledge rollup with native account abstraction. Its apps cover fees, activity, proofs posted to Ethereum and its place among layer 2s.

Markdown copy of https://voltfincrypto.com/chains/zksync

## 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?
- [ZKsync Era Stats: Transactions, Fees and Paymasters](https://voltfincrypto.com/apps/zksync-era-stats) (dashboard, planned): How busy is ZKsync Era, who pays its fees and how long do its batches take to be proven and executed?
- [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?
- [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?

## DeFi

- [PancakeSwap Volume and CAKE Burn by Chain and Version](https://voltfincrypto.com/apps/pancakeswap-volume-cake-burn) (dashboard, planned): How much trades on PancakeSwap and on which chains, and how much CAKE does its revenue burn each week?
- [1inch Volume by Chain: Fusion, Classic Swaps and Resolvers](https://voltfincrypto.com/apps/dex-aggregator-1inch-fusion-volume) (dashboard, planned): How much volume goes through 1inch on each chain, and how much of it do Fusion resolvers fill?