Skip to main content

EVM Simulator

Nethereum includes a full in-process Ethereum Virtual Machine supporting all opcodes through Prague/Cancun, with native precompile implementations, call tracing, state change extraction, and step-by-step debugging.

Capabilities​

  • All opcodes including PUSH0, MCOPY, TSTORE/TLOAD, BLOBHASH
  • Call frame tracking and access list (EIP-2929)
  • Gas accounting and state change extraction
  • Async debugging sessions with step-by-step execution
  • Precompiled contracts: ecRecover, SHA-256, RIPEMD-160, identity, modexp, alt_bn128, blake2f

Use Cases​

  • Transaction preview — simulate state changes before signing
  • Testing — execute contract logic without an external node
  • Debugging — step through EVM execution with full trace
  • Compliance — validate ERC-7562 rules for account abstraction

Packages​

PackageDescription
Nethereum.EVMCore EVM simulator
Nethereum.EVM.ContractsPrecompiled contract implementations
Nethereum.EVM.Precompiles.BlsBLS12-381 precompile (EIP-2537)
Nethereum.EVM.Precompiles.KzgKZG Point Evaluation precompile (EIP-4844)