diff --git a/node/defaults.go b/node/defaults.go
index d8f718121..42d9d4cde 100644
--- a/node/defaults.go
+++ b/node/defaults.go
@@ -36,6 +36,13 @@ const (
 	DefaultAuthPort = 8551        // Default port for the authenticated apis
 )
 
+const (
+	// Engine API batch limits: these are not configurable by users, and should cover the
+	// needs of all CLs.
+	engineAPIBatchItemLimit         = 2000
+	engineAPIBatchResponseSizeLimit = 250 * 1000 * 1000
+)
+
 var (
 	DefaultAuthCors    = []string{"localhost"} // Default cors domain for the authenticated apis
 	DefaultAuthVhosts  = []string{"localhost"} // Default virtual hosts for the authenticated apis
diff --git a/node/node.go b/node/node.go
index da41169c5..41c9971fe 100644
--- a/node/node.go
+++ b/node/node.go
@@ -449,8 +449,11 @@ func (n *Node) startRPC() error {
 		if err := server.setListenAddr(n.config.AuthAddr, port); err != nil {
 			return err
 		}
-		sharedConfig := rpcConfig
-		sharedConfig.jwtSecret = secret
+		sharedConfig := rpcEndpointConfig{
+			jwtSecret:              secret,
+			batchItemLimit:         engineAPIBatchItemLimit,
+			batchResponseSizeLimit: engineAPIBatchResponseSizeLimit,
+		}
 		if err := server.enableRPC(allAPIs, httpConfig{
 			CorsAllowedOrigins: DefaultAuthCors,
 			Vhosts:             n.config.AuthVirtualHosts,