diff --git a/.github/bin/constants.sh b/.github/bin/constants.sh
index c7ebeb043e3..00090c317ba 100644
--- a/.github/bin/constants.sh
+++ b/.github/bin/constants.sh
@@ -3,6 +3,9 @@
 # shellcheck disable=SC2034
 solution="Libplanet"
 projects=(
+  "sdk/node/Libplanet.Node"
+  "sdk/node/Libplanet.Node.Executable"
+  "sdk/node/Libplanet.Node.Extensions"
   "src/Libplanet"
   "src/Libplanet.Action"
   "src/Libplanet.Common"
@@ -24,6 +27,7 @@ projects=(
 )
 configuration=Release
 executables=(
+  "sdk/node/Libplanet.Node.Executable"
   "tools/Libplanet.Tools"
   "tools/Libplanet.Explorer.Executable"
 )
diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
index 55588e07b9d..09eaed7a7e9 100644
--- a/CONTRIBUTING.md
+++ b/CONTRIBUTING.md
@@ -151,7 +151,7 @@ on GitHub consists of several projects.  There are two types of projects:
 
  -  *Libplanet.Tools*: The CLI tools for Libplanet.  This project is distributed
     as a distinct NuGet package: *[Libplanet.Tools]*. See its own
-    [README.md](Libplanet.Tools/README.md).
+    [README.md](tools/Libplanet.Tools/README.md).
 
  -  *Libplanet.Explorer*: Libplanet Explorer, a web server that exposes
     a Libplanet blockchain as a [GraphQL] endpoint.  There is the official
@@ -166,6 +166,16 @@ on GitHub consists of several projects.  There are two types of projects:
  -  *Libplanet.Explorer.Executable*: (**DEPRECATED**) Turns Libplanet Explorer
     into a single executable binary so that it is easy to distribute.
 
+ -  *Libplanet.Node*: Library used to build libplanet node easily.
+    This project is distributed as a distinct NuGet package: *[Libplanet.Node]*.
+    See its own [README.md](sdk/node/Libplanet.Node/README.md).
+
+ -  *Libplanet.Node.Extensions*: Provides extensions methods for
+    *Libplanet.Node*.
+
+ -  *Libplanet.Node.Executable*: Turns Libplanet Node into a single executable
+    binary so that it is easy to distribute.
+
  -  *Libplanet.Benchmarks*: Performance benchmarks.
     See the [*Benchmarks*](#benchmarks) section below.
 
@@ -199,6 +209,8 @@ on GitHub consists of several projects.  There are two types of projects:
  -  *Libplanet.Extensions.Cocona.Tests*: Unit tests for the
     *Libplanet.Extensions.Cocona* project.
 
+ -  *Libplanet.Node.Tests*: Unit tests for the *Libplanet.Node* project.
+
 
 [NuGet package]: https://www.nuget.org/packages/Libplanet/
 [Libplanet.Net]: https://www.nuget.org/packages/Libplanet.Net/
@@ -211,6 +223,7 @@ on GitHub consists of several projects.  There are two types of projects:
 [Libplanet.RocksDBStore]: https://www.nuget.org/packages/Libplanet.RocksDBStore/
 [Libplanet.Analyzers]: https://www.nuget.org/packages/Libplanet.Analyzers/
 [Cocona]: https://www.nuget.org/packages/Cocona
+[Libplanet.Node]: https://www.nuget.org/packages/Libplanet.Node
 [Libplanet.Extensions.Cocona]: https://www.nuget.org/packages/Libplanet.Extensions.Cocona
 [Libplanet.Tools]: https://www.nuget.org/packages/Libplanet.Tools/
 [GraphQL]: https://graphql.org/
diff --git a/hooks/check-projects b/hooks/check-projects
index 646c7ec9aaa..1ecdb66f5a1 100755
--- a/hooks/check-projects
+++ b/hooks/check-projects
@@ -9,7 +9,7 @@ if ! [[ -f "$SOLUTION" ]]; then
 fi
 
 list-projects() {
-  dotnet sln "$SOLUTION" list | grep -E $'(src|tools|test).+\\...proj\r?$' | sed 's/[/][^/]*$//'
+  dotnet sln "$SOLUTION" list | grep -E $'(src|tools|"sdk\/node"|test).+\\...proj\r?$' | sed 's/[/][^/]*$//'
 }
 
 # shellcheck source=.github/bin/constants.sh
@@ -26,7 +26,7 @@ check-github-actions() {
 }
 
 check-contributing() {
-  name=$(echo "$1" | sed -re 's/(src|tools|test)\///')
+  name=$(echo "$1" | sed -re 's/(src|tools|"sdk\/node"|test)\///')
   if ! grep -E "^ -  \*$name\*: " CONTRIBUTING.md > /dev/null; then
     echo "The project $1 is not documented in the CONTRIBUTING.md file." \
       > /dev/stderr
diff --git a/sdk/node/Libplanet.Node/README.md b/sdk/node/Libplanet.Node/README.md
new file mode 100644
index 00000000000..b2815ab878a
--- /dev/null
+++ b/sdk/node/Libplanet.Node/README.md
@@ -0,0 +1,13 @@
+Libplanet Node
+==============
+
+[![NuGet][nuget-badge]][NuGet]
+[![NuGet (prerelease)][nuget-prerelease-badge]][NuGet]
+
+This library is a collection of utilities for application programmers who
+create a blockchain node powered by [Libplanet].
+
+[NuGet]: https://www.nuget.org/packages/Libplanet.Node/
+[nuget-badge]: https://img.shields.io/nuget/v/Libplanet.Node.svg?style=flat
+[nuget-prerelease-badge]: https://img.shields.io/nuget/vpre/Libplanet.Node.svg?style=flat
+[Libplanet]: https://libplanet.io/