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Polyjuice L2 Network


Polyjuice is an L2 network running on the Nervos blockchain. It is an Ethereum-compatible layer inside of an optimistic rollup, which allows for low cost, high speed transactions with a familiar user and developer experience.

  • Compatibility with Ethereum: developers are able to run Ethereum contracts and utilize Ethereum tooling with minimal changes

  • Diverse wallet support: The Nervos “Universal Passport” allows users to interact with Ethereum applications using familiar wallets, such as Metamask or TRON wallet

  • Scalability and flexibility: moving computation off of the Nervos blockchain allows low cost contract execution and allows developers to make use of widely deployed and audited Solidity smart contracts

Quick facts

Property Value
Polyjuice Mainnet chainId COMING SOON
Polyjuice Testnet chainId 71393
Polyjuice Blockchain Explorer COMING SOON
Block time ~1 minute
Data refresh latency ~5 seconds

Supported endpoints

  • api.covalenthq.com/v1/{chainId}/address/{address}/balances_v2/

    • Get token balances for address. Return a list of all ERC20 and NFT token balances including ERC721 and ERC1155 along with their current spot prices.
  • api.covalenthq.com/v1/{chainId}/address/{address}/transactions_v2/

    • Retrieve all transactions for address including their decoded log events. This endpoint does a deep-crawl of the blockchain to retrieve all kinds of transactions that references the address.
  • api.covalenthq.com/v1/{chainId}/address/{address}/transfers_v2/

    • Get ERC20 token transfers for address alongwith historical token prices.
  • api.covalenthq.com/v1/{chainId}/tokens/{contract_address}/token_holders/

    • Return a paginated list of token holders contract_address as of any historical block height.
  • api.covalenthq.com/v1/{chainId}/events/address/{contract_address}/

    • Return a paginated list of decoded log events emitted by a particular smart contract.
  • api.covalenthq.com/v1/{chainId}/events/topics/{topic}/

    • Return a paginated list of decoded log events with one or more topic hashes separated by a comma.

Go to Covalent’s API Reference


Node Provider


Last modified: January 25, 2022: Klatyn Banner updated. (#166) (4da460d)