🔗Resources for Developers
Reference documentation
ZKsync documentation: https://docs.zksync.io/build
Relevant Github repositories:
https://github.com/zksync-sdk/zksync-ethers (Ethers library for Javascript)
Cronos zkEVM Mainnet URLs
Chain ID:
388Token: zkCRO ("Cronos zkEVM CRO")
JSON RPC API (rate limited): https://mainnet.zkevm.cronos.org
WebSocket (rate limited):
wss://ws.zkevm.cronos.orgBlockchain explorer: https://explorer.zkevm.cronos.org/
Gas price: ⚠️ The gas price of is currently fixed at
2500gweiThis is subject to change and is expected to be dynamic in the next major release to be announced.
Developer portal: https://developers.zkevm.cronos.org/
Contract verification interface: https://explorer.zkevm.cronos.org/verifyContract
Bridge for ERC-20 tokens (Ethereum <=> Cronos zkEVM): https://zkevm.cronos.org/bridge
Cronos zkEVM Sepolia Testnet URLs
Chain ID:
240Token: zkTCRO
JSON RPC API (rate limited): https://testnet.zkevm.cronos.org
WebSocket (rate limited):
wss://ws.testnet.zkevm.cronos.orgBlockchain explorer: https://explorer.zkevm.cronos.org/testnet
Gas price: ⚠️ The gas price of is currently fixed at 1250
gweiThis is subject to change and is expected to be dynamic in the next major release to be announced.
Developer portal: https://developers.zkevm.cronos.org/
Contract verification interface: https://explorer.zkevm.cronos.org/testnet/verifyContract
zkTCRO faucet: https://zkevm.cronos.org/faucet
Demo project repository for smart contract developers
Testnet bridge for ERC-20 tokens (zkEVM testnet <=> Ethereum Sepolia): https://zkevm.cronos.org/bridge/testnet
Remix Plugin for zkEVM development
Remix users can leverage the zksync Remix plugin for their development. The plugin simplifies writing and deploying zkEVM smart contracts, making it accessible to both newcomers and experienced users. The plugin can be activated by searching with the keywords zksync
Read more: https://medium.com/nethermind-eth/the-zksync-era-remix-plugin-a-how-to-guide-fc54e8d24bd3
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