Batch-query is a library with utilities that can query multiple values on the Ethereum blockchain at once.
It's intended to reduce the RPC overhead associated with running multiple eth_call invocations simultaneously.
It comes with two main structs:
BalanceBatchercan query the ETH balances of multiple addresses within a single call to an Execution Client. It uses the contract from https://github.com/wbobeirne/eth-balance-checker.MultiCallercan run multiple contract calls (eth_call) within a single call to an Execution Client. It uses the v2 Multicaller contract from https://github.com/makerdao/multicall.