EVM Components

White Rabbit ships 22 EVM components covering the full lifecycle of on-chain operations across any EVM-compatible chain (Ethereum, Polygon, Arbitrum, Base, Avalanche, etc.).

All EVM components accept a jsonRpcUrl where applicable — pass any standard JSON-RPC endpoint (Alchemy, Infura, your own node).

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Categories

Group	Components	Page
Transactions	BUILD_CALLDATA, BUILD, SIGN, BROADCAST, WAIT	Transactions →
Wallets & Addresses	COMPUTE_ADDRESS, GET_DERIVATION_PATH, GET_BALANCE, GET_CHAIN_ID	Wallets & Addresses →
Gnosis Safe	DEPLOYMENT, NONCE, ADDRESS, IS_DEPLOYED, SIGNATURE, SAFE_TX, OWNERS, MULTICALL	Gnosis Safe →
DeFi	UNISWAP_QUOTE, UNISWAP_SWAP_TX	DeFi →
Read & Decode	READ_CONTRACT, DECODE_RESULT, KECCAK256	Read & Decode →

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Typical EVM workflow

GET_EVM_DERIVATION_PATH
        │
        ▼
COMPUTE_PUBLIC_KEY  ──▶  COMPUTE_EVM_ADDRESS
        │
        ▼
BUILD_EVM_TRANSACTION
        │
        ▼
SIGN_WITH_KEY_SHARE  ──▶  SIGN_EVM_TRANSACTION
        │
        ▼
BROADCAST_EVM_TRANSACTION
        │
        ▼
WAIT_FOR_EVM_TRANSACTION

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Connecting to any chain

All components that interact with on-chain state take a jsonRpcUrl as input. You can pass this as a workspace environment variable or directly as a STRING_CONSTANT.

STRING_CONSTANT ("https://eth-mainnet.g.alchemy.com/v2/KEY")
        │
        ▼ jsonRpcUrl
BUILD_EVM_TRANSACTION

Avoid public RPC endpoints

White Rabbit components run on shared infrastructure — all workspaces share the same outbound IP pool. Public RPC URLs (such as https://eth.llamarpc.com or https://rpc.ankr.com/eth) enforce rate limits per IP address. Under concurrent load, shared-IP traffic can exceed these limits and cause intermittent errors, even with our load balancer in place.

Always use a private RPC endpoint from a provider such as Alchemy, Infura, or QuickNode, or point to a self-hosted node.

Supported chains (non-exhaustive):

Chain	Example RPC
Ethereum Mainnet	https://eth-mainnet.g.alchemy.com/v2/KEY
Ethereum Sepolia	https://eth-sepolia.g.alchemy.com/v2/KEY
Polygon	https://polygon-mainnet.g.alchemy.com/v2/KEY
Arbitrum One	https://arb-mainnet.g.alchemy.com/v2/KEY
Base	https://base-mainnet.g.alchemy.com/v2/KEY
Optimism	https://opt-mainnet.g.alchemy.com/v2/KEY
Avalanche	https://avax-mainnet.infura.io/v3/KEY