diff --git a/CHANGELOG.md b/CHANGELOG.md
index 023c18b2f..b323df068 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -99,6 +99,7 @@ Inspired from [Keep a Changelog](https://keepachangelog.com/en/1.0.0/)
 - Added `/_plugins/_ml/agents/_register`, `/_plugins/_ml/connectors/_create`, `DELETE /_plugins/_ml/agents/{agent_id}`, `DELETE /_plugins/_ml/connectors/{connector_id}` ([#228](https://github.com/opensearch-project/opensearch-api-specification/issues/228))
 - Added the `context` query param to the `put_script` APIs ([#586](https://github.com/opensearch-project/opensearch-api-specification/pull/586))
 - Added `persian_stem` filter ([#592](https://github.com/opensearch-project/opensearch-api-specification/pull/592))
+- Added `404` response for `DELETE /{index}`, `GET /{index}/_doc/{id}`, `DELETE /{index}/_doc/{id}` ([#589](https://github.com/opensearch-project/opensearch-api-specification/pull/589))
 
 ### Changed
 
diff --git a/spec/namespaces/_core.yaml b/spec/namespaces/_core.yaml
index 9c5077ee6..79d1343e7 100644
--- a/spec/namespaces/_core.yaml
+++ b/spec/namespaces/_core.yaml
@@ -1368,6 +1368,8 @@ paths:
       responses:
         '200':
           $ref: '#/components/responses/get@200'
+        '404':
+          $ref: '#/components/responses/get@404'
     head:
       operationId: exists.0
       x-operation-group: exists
@@ -1468,6 +1470,8 @@ paths:
       responses:
         '200':
           $ref: '#/components/responses/delete@200'
+        '404':
+          $ref: '#/components/responses/delete@404'
   /{index}/_explain/{id}:
     get:
       operationId: explain.0
@@ -2857,6 +2861,11 @@ components:
         application/json:
           schema:
             $ref: '../schemas/_common.yaml#/components/schemas/WriteResponseBase'
+    delete@404:
+      content:
+        application/json:
+          schema:
+            $ref: '../schemas/_common.yaml#/components/schemas/WriteResponseBase'
     delete_all_pits@200:
       content:
         application/json:
@@ -2945,6 +2954,11 @@ components:
         application/json:
           schema:
             $ref: '../schemas/_core.get.yaml#/components/schemas/GetResult'
+    get@404:
+      content:
+        application/json:
+          schema:
+            $ref: '../schemas/_core.get.yaml#/components/schemas/GetResult'
     get_all_pits@200:
       content:
         application/json:
diff --git a/spec/namespaces/indices.yaml b/spec/namespaces/indices.yaml
index dcd758619..ad4a4c8dd 100644
--- a/spec/namespaces/indices.yaml
+++ b/spec/namespaces/indices.yaml
@@ -1044,6 +1044,8 @@ paths:
       responses:
         '200':
           $ref: '#/components/responses/indices.delete@200'
+        '404':
+          $ref: '#/components/responses/indices.delete@404'
   /{index}/_alias:
     get:
       operationId: indices.get_alias.2
@@ -2400,6 +2402,11 @@ components:
         application/json:
           schema:
             $ref: '../schemas/_common.yaml#/components/schemas/IndicesResponseBase'
+    indices.delete@404:
+      content:
+        application/json:
+          schema:
+            $ref: '../schemas/indices._common.yaml#/components/schemas/IndexErrorCause'
     indices.delete_alias@200:
       content:
         application/json:
diff --git a/spec/schemas/_common.yaml b/spec/schemas/_common.yaml
index 1a58bf8d7..33b6ea830 100644
--- a/spec/schemas/_common.yaml
+++ b/spec/schemas/_common.yaml
@@ -2265,3 +2265,7 @@ components:
     BatchSize:
       type: integer
       format: int64
+    ResourceType:
+      type: string
+      enum:
+        - index_or_alias
diff --git a/spec/schemas/indices._common.yaml b/spec/schemas/indices._common.yaml
index f0440ec75..2e3763cc4 100644
--- a/spec/schemas/indices._common.yaml
+++ b/spec/schemas/indices._common.yaml
@@ -983,3 +983,29 @@ components:
         - mappings
         - order
         - settings
+    IndexErrorCause:
+      type: object
+      properties:
+        type:
+          description: The type of error
+          type: string
+        reason:
+          description: A human-readable explanation of the error, in english
+          type: string
+        root_cause:
+          type: array
+          items:
+            $ref: '#/components/schemas/IndexErrorCause'
+        index:
+          $ref: '_common.yaml#/components/schemas/IndexName'
+        index_uuid:
+          $ref: '_common.yaml#/components/schemas/Uuid'
+        resource.id:
+          $ref: '_common.yaml#/components/schemas/IndexName'
+        resource.type:
+          $ref: '_common.yaml#/components/schemas/ResourceType'
+      required:
+        - type
+      additionalProperties:
+        title: metadata
+        description: Additional details about the error.
diff --git a/tests/default/indices/doc.yaml b/tests/default/indices/doc.yaml
index 6eb5a8a5d..5396a52bf 100644
--- a/tests/default/indices/doc.yaml
+++ b/tests/default/indices/doc.yaml
@@ -57,3 +57,19 @@ chapters:
       id: '1'
     response:
       status: 200
+  - synopsis: Retrieve a nonexistent document.
+    path: /{index}/_doc/{id}
+    method: GET
+    parameters:
+      index: movies
+      id: '1'
+    response:
+      status: 404
+  - synopsis: Delete a nonexistent document.
+    path: /{index}/_doc/{id}
+    method: DELETE
+    parameters:
+      index: movies
+      id: '1'
+    response:
+      status: 404
diff --git a/tests/default/indices/index.yaml b/tests/default/indices/index.yaml
index 4b34c8937..943aa9ca4 100644
--- a/tests/default/indices/index.yaml
+++ b/tests/default/indices/index.yaml
@@ -84,4 +84,12 @@ chapters:
     version: '>= 2.0'
     parameters:
       index: books,games
-      cluster_manager_timeout: 10s     
+      cluster_manager_timeout: 10s
+
+  - synopsis: Delete a nonexistent index `movies`.
+    path: /{index}
+    method: DELETE
+    parameters:
+      index: movies
+    response:
+      status: 404
diff --git a/tools/src/tester/ChapterReader.ts b/tools/src/tester/ChapterReader.ts
index 26dd02753..f85e6fdc6 100644
--- a/tools/src/tester/ChapterReader.ts
+++ b/tools/src/tester/ChapterReader.ts
@@ -62,7 +62,7 @@ export default class ChapterReader {
         response.status = e.response.status
         response.content_type = e.response.headers['content-type']?.split(';')[0]
         const payload = this.#deserialize_payload(e.response.data, response.content_type)
-        if (payload !== undefined) response.payload = payload.error
+        if (payload !== undefined) response.payload = payload.error ?? payload
         response.message = payload.error?.reason ?? e.response.statusText
         this.logger.info(`<= ${response.status} (${response.content_type}) | ${response.payload !== undefined ? to_json(response.payload) : response.message}`)
       }
diff --git a/tools/tests/tester/ChapterReader.test.ts b/tools/tests/tester/ChapterReader.test.ts
index 7e1776bb2..38a0b82fc 100644
--- a/tools/tests/tester/ChapterReader.test.ts
+++ b/tools/tests/tester/ChapterReader.test.ts
@@ -219,6 +219,35 @@ describe('ChapterReader', () => {
         }]
       ])
     })
+
+    it('sets payload to entire response when payload.error is missing', async () => {
+      const mock_payload = { '_data': '1', 'result': 'updated' };
+      const mock_error = {
+        response: {
+          status: 404,
+          headers: {
+            'content-type': 'application/json'
+          },
+          data: JSON.stringify(mock_payload),
+          statusText: 'Not Found'
+        }
+      };
+
+      mocked_axios.request.mockRejectedValue(mock_error);
+
+      const result = await reader.read({
+        id: 'id',
+        path: 'path',
+        method: 'POST'
+      }, new StoryOutputs());
+
+      expect(result).toStrictEqual({
+        status: 404,
+        content_type: 'application/json',
+        payload: mock_payload,
+        message: 'Not Found'
+      });
+    });
   })
 
   describe('deserialize_payload', () => {