docs References JSON-RPC 2.0 Specification golang.org/x/tools/internal/jsonrpc2 github.com/sourcegraph/jsonrpc2 OpenRPC The OpenRPC Specification defines a standard, programming language-agnostic interface description for JSON-RPC 2.0 APIs. open-rpc.org OpenRPC Specification OpenRPC GitHub organization examples etclabscore/ethereum-json-rpc-specification: A specification of JSON-RPC methods that an EVM-based blockchain client must implement.