ETH Mainnet Wallet Bundle
https://api.arysphere.com/v1/ventures/x402_eth_reads_v1/eth_mainnet_wallet_bundleOverview
Ethereum mainnet bundle: several reads in one paid call. Ethereum mainnet wallet check in one paid call: for one address, returns its ETH balance (eth_getBalance), nonce (eth_getTransactionCount) and contract bytecode (eth_getCode), each keyed by part name. Returns: each named part service's own result, in one paid call, keyed by the part's name -- exactly what each part returns when bought alone; the call succeeds only when every part answers. It takes the union of the parts' query parameters.