Testnet forks
Run the same tests on copies of six EVM testnets, read-only.
--chain <key> runs your tests on a fork of that chain at its latest block; --forks all adds one such run per chain next to the local one. Nothing is sent on-chain: no key, no gas. Trace and Atlas switch between the runs with the fork picker.
| Key | Chain |
|---|---|
| sepolia | Ethereum Sepolia |
| arbitrum-sepolia | Arbitrum Sepolia |
| base-sepolia | Base Sepolia |
| robinhood-testnet | Robinhood Chain Testnet |
| hyperevm-testnet | HyperEVM Testnet |
| tempo-testnet | Tempo Testnet (Moderato) |
Public RPCs are used by default. For a provider endpoint set LUORA_RPC_<KEY>, e.g. LUORA_RPC_BASE_SEPOLIA=https://….