diff --git a/groupAPI.yaml b/groupAPI.yaml
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+swagger: "2.0"
+info:
+  description: "これはCosmosのgroupAPIです"
+  version: "1.0.0"
+  title: "Group API"
+  termsOfService: "http://swagger.io/terms/"
+  contact:
+    email: "s1671045@s.konan-u.ac.jp"
+  license:
+    name: "Apache 2.0"
+    url: "http://www.apache.org/licenses/LICENSE-2.0.html"
+paths:
+  /cosmos/groups:
+    get:
+      summary: "グループ取得"
+      description: "所属する全てのグループの情報"
+      consumes: 
+      - "multipart/form-data"
+      parameters:
+      - name: "uId"
+        in: "query"
+        description: "取得したいユーザーのID"
+        required: true
+        type: "string"
+      responses:
+        200:
+          description: "成功時のレスポンス"
+          schema:
+            $ref: "#/definitions/groupList"
+    post:
+      summary: "グループ作成"
+      description: "新規グループを作成"
+      consumes: 
+      - "multipart/form-data"
+      parameters:
+      - name: "name"
+        in: "formData"
+        description: "新規グループの名前"
+        required: true
+        type: "string"
+      - name: "uId"
+        in: "formData"
+        description: "新規グループ作成者のuId"
+        required: true
+        type: "string"
+      responses:
+        200:
+          description: "成功時のレスポンス"
+          schema:
+            $ref: "#/definitions/newGroupInfo"
+  /cosmos/groups/{groupId}:
+    get:
+      summary: "グループ情報API"
+      description: "指定されたグループの情報を返します"
+      parameters:
+      - name: "groupId"
+        in: "path"
+        description: "取得したいグループのID"
+        required: true
+        type: "string"
+      responses:
+        200:
+          description: "成功時のレスポンス"
+          schema:
+            $ref: "#/definitions/groupInfo"
+        404:
+          description: "失敗時のレスポンス"
+          schema:
+            $ref: "#/definitions/error"
+    delete:
+      summary: "delete a group"
+      description: "指定されたグループを削除"
+      parameters:
+      - name: "groupId"
+        in: "path"
+        description: "削除したいグループのID"
+        required: true
+        type: "string"
+      responses:
+        200:
+          description: "成功時のレスポンス"
+          schema:
+            $ref: "#/definitions/delete"
+  /cosmos/groups/{groupId}/members:
+    get:
+      summary: "メンバー情報"
+      description: "指定されたグループのメンバーの情報"
+      parameters:
+      - name: "groupId"
+        in: "path"
+        description: "取得したいグループのID"
+        required: true
+        type: "string"
+      responses:
+        200:
+          description: "成功時のレスポンス"
+          schema:
+            $ref: "#/definitions/membersInfo"
+    post:
+      summary: "グループにメンバー追加"
+      description: "指定したグループにメンバーを追加"
+      consumes: 
+      - "multipart/form-data"
+      parameters:
+      - name: "groupId"
+        in: "path"
+        description: "取得したいグループのID"
+        required: true
+        type: "string"
+      - name: "uId"
+        in: "formData"
+        description: "追加したいメンバーのuId"
+        required: true
+        type: "string"
+      responses:
+        200:
+          description: "成功時のレスポンス"
+          schema:
+            $ref: "#/definitions/membersInfo"
+    delete:
+      summary: "グループからメンバーを削除"
+      description: "指定したグループから指定したメンバーを削除"
+      consumes: 
+      - "multipart/form-data"
+      parameters:
+      - name: "groupId"
+        in: "path"
+        description: "取得したいグループのID"
+        required: true
+        type: "string"
+      - name: "uId"
+        in: "formData"
+        description: "削除したいメンバーのuId"
+        required: true
+        type: "string"
+      responses:
+        200:
+          description: "成功時のレスポンス"
+          schema:
+            $ref: "#/definitions/membersInfo"
+  /cosmos/groups/{groupId}/requests:
+    get:
+      summary: "リクエスト情報の取得"
+      description: "指定したグループのリクエストの情報を取得"
+      parameters:
+      - name: "groupId"
+        in: "path"
+        description: "取得したいグループのID"
+        required: true
+        type: "string"
+      responses:
+        200:
+          description: "成功時のレスポンス"
+          schema:
+            $ref: "#/definitions/requestsInfo"
+    post:
+      summary: "リクエストの発行"
+      description: "指定したグループにリクエスト発行"
+      consumes: 
+      - "multipart/form-data"
+      parameters:
+      - name: "groupId"
+        in: "path"
+        description: "リクエスト発行先グループのID"
+        required: true
+        type: "string"
+      - name: "uId"
+        in: "formData"
+        description: "発行者ID"
+        required: true
+        type: "string"
+      - name: "product"
+        in: "formData"
+        description: "商品名"
+        required: true
+        type: "string"
+      - name: "deadline"
+        in: "formData"
+        description: "期限（日にち）"
+        required: false
+        type: "string"
+        format: "date"
+      - name: "location"
+        in: "formData"
+        description: "場所の業種コード"
+        required: false
+        type: "integer"
+        format: "int64"
+      responses:
+        200:
+          description: "成功時のレスポンス"
+          schema:
+            $ref: "#/definitions/requestInfo"
+    put:
+      summary: "リクエストの変更"
+      description: "指定したグループにリクエスト変更"
+      consumes: 
+      - "multipart/form-data"
+      parameters:
+      - name: "groupId"
+        in: "path"
+        description: "リクエスト変更先グループのID"
+        required: true
+        type: "string"
+      - name: "uId"
+        in: "formData"
+        description: "発行者ID"
+        required: true
+        type: "string"
+      - name: "product"
+        in: "formData"
+        description: "商品名"
+        required: true
+        type: "string"
+      - name: "deadline"
+        in: "formData"
+        description: "期限（日にち）"
+        required: false
+        type: "string"
+        format: "date"
+      - name: "location"
+        in: "formData"
+        description: "場所の業種コード"
+        required: false
+        type: "integer"
+        format: "int64"
+      responses:
+        200:
+          description: "成功時のレスポンス"
+          schema:
+            $ref: "#/definitions/requestInfo"
+  /cosmos/groups/{groupId}/requests/{requestId}:
+    get:
+      summary: "リクエスト情報の詳細を取得"
+      description: "指定したグループの指定したリクエストの情報を取得"
+      parameters:
+      - name: "groupId"
+        in: "path"
+        description: "（指定したい）グループのID"
+        required: true
+        type: "string"
+      - name: "requestId"
+        in: "path"
+        description: "取得したいリクエストのID"
+        required: true
+        type: "string"
+      responses:
+        200:
+          description: "成功時のレスポンス"
+          schema:
+            $ref: "#/definitions/requestDetail"
+    delete:
+      summary: "リクエストの削除"
+      description: "指定したグループの指定したリクエストを削除"
+      parameters:
+      - name: "groupId"
+        in: "path"
+        description: "（指定したい）グループのID"
+        required: true
+        type: "string"
+      - name: "requestId"
+        in: "path"
+        description: "削除したいリクエストのID"
+        required: true
+        type: "string"
+      responses:
+        200:
+          description: "成功時のレスポンス"
+          schema:
+            $ref: "#/definitions/delete"
+
+definitions:
+  groupInfo:
+    type: "object"
+    properties:
+      gId:
+        type: "string"
+      uri:
+        type: "string"
+        example: "http://sample.com"
+      name:
+        type: "string"
+        example: "family"
+      members:
+        type: "object"
+        example: [{"uId":"123456789","uri":"http://123456789.com"},{"uId":"987654321","uri":"http://987654321.com"}]
+      requests:
+        type: "object"
+        example: [{"rId":"123456789","uri":"http://123456789.com"},{"rId":"987654321","uri":"http://987654321.com"}]
+  membersInfo:
+    type: "object"
+    properties:
+      members:
+        type: "object"
+        example: [{"uId":"123456789","uri":"http://123456789.com"},{"uId":"987654321","uri":"http://987654321.com"}]
+  newGroupInfo:
+    type: "object"
+    properties:
+      gId:
+        type: "string"
+      uri:
+        type: "string"
+        example: "http://sample.com"
+      name:
+        type: "string"
+        example: "family"
+      members:
+        type: "object"
+        example: [{"uId":"123456789","uri":"http://123456789.com"}]
+      requests:
+        type: "object"
+        example: []
+  requestInfo:
+    type: "object"
+    properties:
+      requests:
+        type: "object"
+        example: {"rId":"123456789","uri":"http://123456789.com"}
+  requestsInfo:
+    type: "object"
+    properties:
+      requests:
+        type: "object"
+        example: [{"rId":"123456789","uri":"http://123456789.com"},{"rId":"987654321","uri":"http://987654321.com"}]
+  groupList:
+    type: "object"
+    properties:
+      groups:
+        type: "object"
+        example: [{"gId":"123456789","uri":"http://123456789.com"},{"gId":"987654321","uri":"http://987654321.com"}]
+  requestDetail:
+    type: "object"
+    properties:
+      request:
+        type: "object"
+        example: {
+          "rId":"123456789",
+          "date":"2019/04/16/15:00:00",
+          "issuer":{
+              "userId":"123456789",
+              "URI":"https://123456789.com"
+          },
+          "product":"Object1",
+          "deadline":"2019/04/16",
+          "location":"YOLPのID",
+          "done":false
+        }
+  delete:
+    type: "object"
+    properties:
+      massage:
+        type: "string"
+        example: "Already Deleted"
+  error:
+    type: "object"
+    properties:
+      massage:
+        type: "string"
+        example: "Not Found"