diff --git a/docs/requirements.mdx b/docs/requirements.mdx
index 3047f1872..154662594 100644
--- a/docs/requirements.mdx
+++ b/docs/requirements.mdx
@@ -520,6 +520,14 @@ Since ScalarDB Cluster uses gRPC, you can also create your own client in your pr
 
 Since ScalarDB Cluster uses Core to interact with databases, the requirements for databases are the same as those for Core. For more information, see [Databases](#databases).
 
+### Required ports
+
+ScalarDB Cluster requires the following ports to be accessible. These default port numbers can be configured as needed:
+
+- 60053 (Administrative API / Transactional API / SQL API / pause operation)
+- 8080 (GraphQL)
+- 9080 (metrics)
+
 ### Kubernetes
 
 ScalarDB Cluster is provided as a cluster consisting of one or more Pods on the Kubernetes platform in production environments. ScalarDB Cluster supports the following platforms and tools.
@@ -660,6 +668,14 @@ For databases **not** managed under ScalarDB Core and Cluster, make sure you reg
 The ScalarDB Analytics server also requires permissions to manage catalog information in its database.
 Create a user with permission according to [Database permission requirements](requirements.mdx#database-permission-requirements) and set the user to the ScalarDB Analytics server configuration.
 
+### Required ports
+
+ScalarDB Analytics requires the following ports to be accessible. These default port numbers can be configured as needed:
+
+- 11051 (catalog service)
+- 11052 (metering service)
+- The port number that Apache Spark uses depends on how you deploy the Spark cluster. For details on which ports you need to make accessible, please refer to your Spark service provider's documentation.
+
 ### Kubernetes
 
 The server component of ScalarDB Analytics (ScalarDB Analytics server) is provided as a Pod on the Kubernetes platform in production environments. ScalarDB Analytics supports the following platforms and tools.
diff --git a/docs/scalar-manager/overview.mdx b/docs/scalar-manager/overview.mdx
index 525b93060..fdfee24f6 100644
--- a/docs/scalar-manager/overview.mdx
+++ b/docs/scalar-manager/overview.mdx
@@ -52,3 +52,7 @@ By using the authorization feature, administrators can define and assign specifi
 ### Integrated authentication with Grafana
 
 Scalar Manager now offers seamless authentication integration between your Grafana instance and other components of the system. This single-sign-on capability eliminates the need for multiple authentication processes, streamlining the user experience and enhancing security by reducing credential management overhead.
+
+## Required port
+
+Scalar Manager requires port 13000 to be accessible.