What An Endpoint Contract Does
The contract is the public route map and claim boundary. It tells a developer what exists, an operator what must be checked, and a partner what must not be inferred.
Customer endpoint hostnames and provider lanes are listed separately.
Each lane names whether it is Tendermint RPC, REST, gRPC, Bitcoin Core RPC, Ethereum JSON-RPC, or another interface.
The contract says whether customer endpoints require API keys and whether public free RPC is offered.
Refused claims are part of the product: no custody, no sale, no reward, no finality guarantee, no uptime guarantee.