diff --git a/README.md b/README.md
index d891581..1eb587e 100644
--- a/README.md
+++ b/README.md
@@ -1 +1 @@
-# OpenSkins-PluginInterface
\ No newline at end of file
+# OpenSkins-Common
\ No newline at end of file
diff --git a/datastore/skinstore.go b/datastore/skinstore.go
new file mode 100644
index 0000000..316d8d1
--- /dev/null
+++ b/datastore/skinstore.go
@@ -0,0 +1,9 @@
+package datastore
+
+import "github.com/josephbmanley/OpenSkins-Common/datatypes"
+
+type Skinstore interface {
+	Initialize() error
+	GetSkin(string) (datatypes.Skin, error)
+	AddSkin(string, []byte) error
+}
diff --git a/datastore/userstore.go b/datastore/userstore.go
new file mode 100644
index 0000000..51e3ceb
--- /dev/null
+++ b/datastore/userstore.go
@@ -0,0 +1,9 @@
+package datastore
+
+import "github.com/josephbmanley/OpenSkins-Common/datatypes"
+
+type Userstore interface {
+	Initialize() error
+	GetUser(uid string) (datatypes.User, error)
+	SetUser(datatypes.User) error
+}
diff --git a/datatypes/character.go b/datatypes/character.go
new file mode 100644
index 0000000..d8d6481
--- /dev/null
+++ b/datatypes/character.go
@@ -0,0 +1,7 @@
+package datatypes
+
+// Character represents something that can be skinned
+type Character struct {
+	Name string `json:"name"`
+	Skin Skin   `json:"skin"`
+}
diff --git a/datatypes/skin.go b/datatypes/skin.go
new file mode 100644
index 0000000..7ff65d9
--- /dev/null
+++ b/datatypes/skin.go
@@ -0,0 +1,11 @@
+package datatypes
+
+// Skin struct holds the
+type Skin struct {
+	Name     string            `json:"name"`
+	Location string            `json:"location"`
+	Metadata map[string]string `json:"metadata"`
+}
+
+// Skins are an array of Skin
+type Skins []Skin
diff --git a/datatypes/user.go b/datatypes/user.go
new file mode 100644
index 0000000..51eb889
--- /dev/null
+++ b/datatypes/user.go
@@ -0,0 +1,7 @@
+package datatypes
+
+// User is an object representing a user
+type User struct {
+	UID        string `json:"uid"`
+	OwnedSkins Skins  `json:"skins"`
+}
diff --git a/go.mod b/go.mod
new file mode 100644
index 0000000..73f8a56
--- /dev/null
+++ b/go.mod
@@ -0,0 +1,3 @@
+module github.com/josephbmanley/OpenSkins-Common
+
+go 1.13