diff --git a/.gitmodules b/.gitmodules
index 42808d0..87983c4 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -268,3 +268,6 @@
 [submodule "addons/ficsit-network/module"]
 	path = addons/ficsit-network/module
 	url = https://github.com/fensoft/LuaLS-FicsIt-Networks.git
+[submodule "addons/rapidjson/module"]
+	path = addons/rapidjson/module
+	url = https://github.com/saspivey98/rapidjson-definitions.git
diff --git a/addons/rapidjson/info.json b/addons/rapidjson/info.json
new file mode 100644
index 0000000..fede29f
--- /dev/null
+++ b/addons/rapidjson/info.json
@@ -0,0 +1,7 @@
+{
+  "$schema": "https://raw.githubusercontent.com/LuaLS/LLS-Addons/main/schemas/addon_info.schema.json",
+  "name": "RapidJSON",
+  "description": "A json module for LuaJIT 2.0/2.1 and Lua 5.1/5.2/5.3, based on the very fast RapidJSON C++ library.",
+  "size": 4996,
+  "hasPlugin": false
+}
diff --git a/addons/rapidjson/module b/addons/rapidjson/module
new file mode 160000
index 0000000..4acc8c1
--- /dev/null
+++ b/addons/rapidjson/module
@@ -0,0 +1 @@
+Subproject commit 4acc8c172f1cd70905cd5252e4095d0d1ac312b5