diff --git a/beacon-chain/node/node.go b/beacon-chain/node/node.go
index 551a907a93..3d97c2b83a 100644
--- a/beacon-chain/node/node.go
+++ b/beacon-chain/node/node.go
@@ -645,12 +645,12 @@ func (b *BeaconNode) registerGRPCGateway() error {
 		return nil
 	}
 	gatewayPort := b.cliCtx.Int(flags.GRPCGatewayPort.Name)
-	apiMiddlewarePort := b.cliCtx.Int(flags.ApiMiddlewarePort.Name)
+	ethApiPort := b.cliCtx.Int(flags.EthApiPort.Name)
 	gatewayHost := b.cliCtx.String(flags.GRPCGatewayHost.Name)
 	rpcHost := b.cliCtx.String(flags.RPCHost.Name)
 	selfAddress := fmt.Sprintf("%s:%d", rpcHost, b.cliCtx.Int(flags.RPCPort.Name))
 	gatewayAddress := fmt.Sprintf("%s:%d", gatewayHost, gatewayPort)
-	apiMiddlewareAddress := fmt.Sprintf("%s:%d", gatewayHost, apiMiddlewarePort)
+	apiMiddlewareAddress := fmt.Sprintf("%s:%d", gatewayHost, ethApiPort)
 	allowedOrigins := strings.Split(b.cliCtx.String(flags.GPRCGatewayCorsDomain.Name), ",")
 	enableDebugRPCEndpoints := b.cliCtx.Bool(flags.EnableDebugRPCEndpoints.Name)
 	selfCert := b.cliCtx.String(flags.CertFlag.Name)
diff --git a/beacon-chain/server/main.go b/beacon-chain/server/main.go
index c83bf899fe..cf6c888438 100644
--- a/beacon-chain/server/main.go
+++ b/beacon-chain/server/main.go
@@ -20,7 +20,7 @@ import (
 var (
 	beaconRPC               = flag.String("beacon-rpc", "localhost:4000", "Beacon chain gRPC endpoint")
 	port                    = flag.Int("port", 8000, "Port to serve on")
-	apiMiddlewarePort       = flag.Int("port", 8001, "Port to serve API middleware on")
+	EthApiPort              = flag.Int("port", 8001, "Port to serve Ethereum API on")
 	host                    = flag.String("host", "127.0.0.1", "Host to serve on")
 	debug                   = flag.Bool("debug", false, "Enable debug logging")
 	allowedOrigins          = flag.String("corsdomain", "localhost:4242", "A comma separated list of CORS domains to allow")
@@ -48,7 +48,7 @@ func main() {
 		fmt.Sprintf("%s:%d", *host, *port),
 	).WithAllowedOrigins(strings.Split(*allowedOrigins, ",")).
 		WithMaxCallRecvMsgSize(uint64(*grpcMaxMsgSize)).
-		WithApiMiddleware(fmt.Sprintf("%s:%d", *host, *apiMiddlewarePort), &apimiddleware.BeaconEndpointFactory{})
+		WithApiMiddleware(fmt.Sprintf("%s:%d", *host, *EthApiPort), &apimiddleware.BeaconEndpointFactory{})
 
 	mux := http.NewServeMux()
 	mux.HandleFunc("/swagger/", gateway.SwaggerServer())
diff --git a/cmd/beacon-chain/flags/base.go b/cmd/beacon-chain/flags/base.go
index 5d987e808c..78d2d72ae0 100644
--- a/cmd/beacon-chain/flags/base.go
+++ b/cmd/beacon-chain/flags/base.go
@@ -70,11 +70,11 @@ var (
 		Usage: "The port on which the gateway server runs on",
 		Value: 3500,
 	}
-	// ApiMiddlewarePort specifies the port for an HTTP proxy server which acts as a middleware between Ethereum consensus API clients and Prysm's gRPC gateway.
-	// The middleware serves JSON values conforming to the specification: https://ethereum.github.io/eth2.0-APIs/
-	ApiMiddlewarePort = &cli.IntFlag{
-		Name:  "api-middleware-port",
-		Usage: "The port on which the API middleware runs on",
+	// EthApiPort specifies the port which runs the official Ethereum REST API.
+	// Serves JSON values conforming to the specification: https://ethereum.github.io/eth2.0-APIs/
+	EthApiPort = &cli.IntFlag{
+		Name:  "eth-api-port",
+		Usage: "The port which exposes a REST API conforming to the official Ethereum API specification.",
 		Value: 3501,
 	}
 	// GPRCGatewayCorsDomain serves preflight requests when serving gRPC JSON gateway.
diff --git a/cmd/beacon-chain/main.go b/cmd/beacon-chain/main.go
index ebe2b16f0c..34ddac4a89 100644
--- a/cmd/beacon-chain/main.go
+++ b/cmd/beacon-chain/main.go
@@ -39,7 +39,7 @@ var appFlags = []cli.Flag{
 	flags.DisableGRPCGateway,
 	flags.GRPCGatewayHost,
 	flags.GRPCGatewayPort,
-	flags.ApiMiddlewarePort,
+	flags.EthApiPort,
 	flags.GPRCGatewayCorsDomain,
 	flags.MinSyncPeers,
 	flags.ContractDeploymentBlock,
diff --git a/cmd/beacon-chain/usage.go b/cmd/beacon-chain/usage.go
index 25675fe546..48f36dc198 100644
--- a/cmd/beacon-chain/usage.go
+++ b/cmd/beacon-chain/usage.go
@@ -102,7 +102,7 @@ var appHelpFlagGroups = []flagGroup{
 			flags.DisableGRPCGateway,
 			flags.GRPCGatewayHost,
 			flags.GRPCGatewayPort,
-			flags.ApiMiddlewarePort,
+			flags.EthApiPort,
 			flags.GPRCGatewayCorsDomain,
 			flags.HTTPWeb3ProviderFlag,
 			flags.FallbackWeb3ProviderFlag,
diff --git a/endtoend/components/beacon_node.go b/endtoend/components/beacon_node.go
index a623fb9b90..e50aca0eba 100644
--- a/endtoend/components/beacon_node.go
+++ b/endtoend/components/beacon_node.go
@@ -112,7 +112,7 @@ func (node *BeaconNode) Start(ctx context.Context) error {
 		fmt.Sprintf("--%s=%d", cmdshared.P2PTCPPort.Name, e2e.TestParams.BeaconNodeRPCPort+index+20),
 		fmt.Sprintf("--%s=%d", flags.MonitoringPortFlag.Name, e2e.TestParams.BeaconNodeMetricsPort+index),
 		fmt.Sprintf("--%s=%d", flags.GRPCGatewayPort.Name, e2e.TestParams.BeaconNodeRPCPort+index+40),
-		fmt.Sprintf("--%s=%d", flags.ApiMiddlewarePort.Name, e2e.TestParams.BeaconNodeRPCPort+index+30),
+		fmt.Sprintf("--%s=%d", flags.EthApiPort.Name, e2e.TestParams.BeaconNodeRPCPort+index+30),
 		fmt.Sprintf("--%s=%d", flags.ContractDeploymentBlock.Name, 0),
 		fmt.Sprintf("--%s=%d", cmdshared.RPCMaxPageSizeFlag.Name, params.BeaconConfig().MinGenesisActiveValidatorCount),
 		fmt.Sprintf("--%s=%s", cmdshared.BootstrapNode.Name, enr),