diff --git a/specs/codebuilder-cli.json b/specs/codebuilder-cli.json
new file mode 100644
index 0000000..446ed9c
--- /dev/null
+++ b/specs/codebuilder-cli.json
@@ -0,0 +1,204 @@
+{
+  "name": "codebuilder-cli",
+  "description": "Spec for Codebuilder CLI.",
+  "info": {
+    "contact": {
+      "name": "Niclas Thobaben",
+      "email": "niclas@die-thobabens.de",
+      "url": "https://nclazz.de"
+    }
+  },
+  "imports": [
+    {
+      "uri": "https://app.apibuilder.io/nclazz/codebuilder/latest/service.json"
+    }
+  ],
+  "models": {
+    "settings": {
+      "description": "Settings for codebuilder cli.",
+      "fields": [
+        {
+          "name": "servers",
+          "type": "[server]"
+        }
+      ]
+    },
+    "server": {
+      "description": "Defines a codebuilder server to deploy and fetch generators.",
+      "fields": [
+        {
+          "name": "id",
+          "type": "string",
+          "description": "A id of the server to reference in maven plugin or similar. *Note: This is not the login!*"
+        },
+        {
+          "name": "url",
+          "type": "string",
+          "description": "The url under which the server is accessible."
+        },
+        {
+          "name": "username",
+          "type": "string",
+          "description": "Username to login to the server."
+        },
+        {
+          "name": "password",
+          "type": "string",
+          "description": "Password of the specified user."
+        }
+      ]
+    },
+    "descriptor": {
+      "description": "Descriptor of a codebuilder project.",
+      "fields": [
+        {
+          "name": "name",
+          "type": "string",
+          "description": "Name of the project. This maps to the generator key."
+        },
+        {
+          "name": "description",
+          "type": "string",
+          "required": false
+        },
+        {
+          "name": "templates",
+          "type": "[template_descriptor]",
+          "default": [],
+          "required": false
+        },
+        {
+          "name": "reserved",
+          "type": "reserved_descriptor",
+          "required": false
+        },
+        {
+          "name": "types",
+          "type": "[type_mapping_descriptor]",
+          "required": false,
+          "default": []
+        }
+      ]
+    },
+    "template_descriptor": {
+      "description": "Meta information for a template in the project.",
+      "fields": [
+        {
+          "name": "name",
+          "type": "string",
+          "description": "Maps to a template file with a name in the format `<name>.<target>`."
+        },
+        {
+          "name": "scaffolding",
+          "type": "boolean",
+          "default": false,
+          "required": false
+        },
+        {
+          "name": "filename",
+          "type": "string",
+          "default": "{{item.name}}",
+          "required": false
+        },
+        {
+          "name": "directory",
+          "type": "string",
+          "default": ".",
+          "required": false
+        }
+      ]
+    },
+    "reserved_descriptor": {
+      "fields": [
+        {
+          "name": "use",
+          "type": "string",
+          "description": "Use a predefined set of reserved words.",
+          "required": false
+        },
+        {
+          "name": "reserve",
+          "type": "[de.nclazz.codebuilder.v0.model.reserved_word]",
+          "required": false
+        }
+      ]
+    },
+    "type_mapping_descriptor": {
+      "fields": [
+        {
+          "name": "boolean",
+          "type": "string",
+          "required": false,
+          "default": "boolean"
+        },
+        {
+          "name": "date-iso8601",
+          "type": "string",
+          "required": false,
+          "default": "date-iso8601"
+        },
+        {
+          "name": "date-time-iso8601",
+          "type": "string",
+          "required": false,
+          "default": "date-time-iso8601"
+        },
+        {
+          "name": "decimal",
+          "type": "string",
+          "required": false,
+          "default": "decimal"
+        },
+        {
+          "name": "double",
+          "type": "string",
+          "required": false,
+          "default": "double"
+        },
+        {
+          "name": "integer",
+          "type": "string",
+          "required": false,
+          "default": "integer"
+        },
+        {
+          "name": "json",
+          "type": "string",
+          "required": false,
+          "default": "json"
+        },
+        {
+          "name": "long",
+          "type": "string",
+          "required": false,
+          "default": "long"
+        },
+        {
+          "name": "object",
+          "type": "string",
+          "required": false,
+          "default": "object"
+        },
+        {
+          "name": "string",
+          "type": "string",
+          "required": false,
+          "default": "string"
+        },
+        {
+          "name": "unit",
+          "type": "string",
+          "required": false,
+          "default": "unit"
+        },
+        {
+          "name": "uuid",
+          "type": "string",
+          "required": false,
+          "default": "uuid"
+        }
+      ]
+    }
+
+  }
+}
\ No newline at end of file
diff --git a/upload-specs.sh b/upload-specs.sh
index 48a2ac2..0799076 100644
--- a/upload-specs.sh
+++ b/upload-specs.sh
@@ -8,6 +8,7 @@ SPECS=(
     "common-resources"
     "authentication"
     "codebuilder"
+    "codebuilder-cli"
 )
 
 for file in "${SPECS[@]}"; do