When interacting with the eth.events API, the base URL structure is always as follows:
The first triple of technology, blockchain and network describes the network you want to interact with. For most users this would be /ethereum/ethereum/mainnet/, which is also the default and can be omitted. Other possible values would be for example /ethereum/classic/morden/.
The fourth part is the search interface you want to use. Currently only the ElasticSearch interface /es/ is supported, but we’re already working on SQL and GraphQL support.
So, for most users the base URL will be