diff --git a/src/openapi.yaml b/src/openapi.yaml
index 80f25d9..8017075 100644
--- a/src/openapi.yaml
+++ b/src/openapi.yaml
@@ -116,6 +116,8 @@ paths:
           description: "TODO"
   /user/show:
     $ref: "./paths/user/show.yaml#/paths/Path"
+  /user/grass:
+    $ref: "./paths/user/grass.yaml#/paths/Path"
 
 components:
   securitySchemes:
diff --git a/src/paths/user/grass.yml b/src/paths/user/grass.yml
new file mode 100644
index 0000000..4583109
--- /dev/null
+++ b/src/paths/user/grass.yml
@@ -0,0 +1,35 @@
+# yaml-language-server: $schema=https://spec.openapis.org/oas/3.1/schema/2021-05-20
+---
+# for the intellisense
+openapi: "3.1.0"
+info: { title: "", version: "" }
+
+paths:
+  Path:
+    get:
+      summary: "사용자의 스트릭 및 문제를 푼 날 정보 가져오기"
+      description: "사용자가 문제를 푼 날, 스트릭 정보, 스트릭 테마를 가져옵니다."
+      tags:
+        - user
+      operationId: getGrass
+
+      parameters:
+        - name: "handle"
+          in: "query"
+          description: "사용자 ID"
+          required: true
+          schema:
+            type: "string"
+        - name: "topic"
+          in: "query"
+          description: "아직 밝혀지지 않았습니다. 항상 `today-solved`입니다."
+          required: true
+          schema:
+            type: "string"
+      responses:
+        "200":
+          description: "서버가 반환에 성공한 경우입니다."
+          content:
+            application/json:
+              schema:
+                $ref: "../../schemas/full-user.yaml#/components/schemas/FullUser"
diff --git a/src/schemas/grass.yaml b/src/schemas/grass.yaml
new file mode 100644
index 0000000..c5534cb
--- /dev/null
+++ b/src/schemas/grass.yaml
@@ -0,0 +1,45 @@
+# yaml-language-server: $schema=https://spec.openapis.org/oas/3.1/schema/2021-05-20
+---
+# for the intellisense
+openapi: "3.1.0"
+info: { title: "", version: "" }
+
+components:
+  schemas:
+    Grass:
+      title: Grass
+      description: |
+        사용자의 스트릭 및 문제를 푼 날 정보입니다.
+      type: "object"
+      required:
+        - grass
+        - currentStreak
+        - longestStreak
+      properties:
+        grass:
+          description: "문제를 푼 날짜별 푼 문제 수 목록입니다."
+          type: "array"
+          items:
+            type: "object"
+            properties:
+              date:
+                description: "문제를 푼 날짜입니다."
+                type: "string"
+                format: "YYYY-MM-dd"
+                example: "2023-01-26"
+              value:
+                description: "푼 문제의 수입니다."
+                type: "integer"
+                example: 35
+        theme:
+          description: "스트릭 색상입니다."
+          type: "string"
+          example: "special_hanbyeol"
+        currentStreak:
+          description: "현재 스트릭 기간입니다."
+          type: "integer"
+          example: 0
+        longestStreak:
+          description: "최대 스트릭 기간입니다."
+          type: "integer"
+          example: 186