rpc

The rpc namespace has one method, rpc_modules, which lists the namespaces the node serves. It is on by default and costs almost nothing to serve, since the node builds the answer once when the RPC server starts. Public RPC nodes and archive nodes should keep it so clients and operators can check what a node serves; a validator’s minimal eth,net,web3 selection leaves it out. See Enabling Namespaces for the flags.

Example values are illustrative; field names and types match what the node returns.