diff --git a/app/client/package.json b/app/client/package.json
index 095aaed2be..3206ad5a25 100644
--- a/app/client/package.json
+++ b/app/client/package.json
@@ -28,6 +28,7 @@
     "eslint": "^6.4.0",
     "flow-bin": "^0.91.0",
     "fontfaceobserver": "^2.1.0",
+    "history": "^4.10.1",
     "husky": "^3.0.5",
     "jsonpath-plus": "^1.0.0",
     "lint-staged": "^9.2.5",
@@ -53,7 +54,6 @@
     "react-router-dom": "^5.0.1",
     "react-scripts": "^3.1.1",
     "react-select": "^3.0.8",
-    "react-tabs": "^3.0.0",
     "redux": "^4.0.1",
     "redux-form": "^8.2.6",
     "redux-saga": "^1.0.0",
diff --git a/app/client/src/actions/actionActions.ts b/app/client/src/actions/actionActions.ts
index f4f553b97c..a59a73d6d6 100644
--- a/app/client/src/actions/actionActions.ts
+++ b/app/client/src/actions/actionActions.ts
@@ -3,7 +3,14 @@ import { RestAction } from "../api/ActionAPI";
 
 export const createAction = (payload: RestAction) => {
   return {
-    type: ReduxActionTypes.CREATE_ACTION,
+    type: ReduxActionTypes.CREATE_ACTION_INIT,
+    payload,
+  };
+};
+
+export const createActionSuccess = (payload: RestAction) => {
+  return {
+    type: ReduxActionTypes.CREATE_ACTION_SUCCESS,
     payload,
   };
 };
@@ -14,13 +21,6 @@ export const fetchActions = () => {
   };
 };
 
-export const selectAction = (payload: { id: string }) => {
-  return {
-    type: ReduxActionTypes.SELECT_ACTION,
-    payload,
-  };
-};
-
 export const fetchApiConfig = (payload: { id: string }) => {
   return {
     type: ReduxActionTypes.FETCH_ACTION,
@@ -30,21 +30,35 @@ export const fetchApiConfig = (payload: { id: string }) => {
 
 export const runAction = (payload: { id: string }) => {
   return {
-    type: ReduxActionTypes.RUN_ACTION,
-    payload,
-  };
-};
-
-export const deleteAction = (payload: { id: string }) => {
-  return {
-    type: ReduxActionTypes.DELETE_ACTION,
+    type: ReduxActionTypes.RUN_ACTION_INIT,
     payload,
   };
 };
 
 export const updateAction = (payload: { data: RestAction }) => {
   return {
-    type: ReduxActionTypes.UPDATE_ACTION,
+    type: ReduxActionTypes.UPDATE_ACTION_INIT,
+    payload,
+  };
+};
+
+export const updateActionSuccess = (payload: { data: RestAction }) => {
+  return {
+    type: ReduxActionTypes.UPDATE_ACTION_SUCCESS,
+    payload,
+  };
+};
+
+export const deleteAction = (payload: { id: string }) => {
+  return {
+    type: ReduxActionTypes.DELETE_ACTION_INIT,
+    payload,
+  };
+};
+
+export const deleteActionSuccess = (payload: { id: string }) => {
+  return {
+    type: ReduxActionTypes.DELETE_ACTION_SUCCESS,
     payload,
   };
 };
@@ -55,4 +69,7 @@ export default {
   fetchApiConfig,
   runAction,
   deleteAction,
+  deleteActionSuccess,
+  updateAction,
+  updateActionSuccess,
 };
diff --git a/app/client/src/assets/icons/form/add-new.svg b/app/client/src/assets/icons/form/add-new.svg
new file mode 100644
index 0000000000..6edbd99663
--- /dev/null
+++ b/app/client/src/assets/icons/form/add-new.svg
@@ -0,0 +1,3 @@
+<svg width="16" height="16" viewBox="0 0 16 16" fill="none" xmlns="http://www.w3.org/2000/svg">
+<path d="M3.40782 0L0.393555 2.90999V16H8.47325V14.609H1.79346V3.89572H4.42798V1.39105H10.3326V5.5642H11.7325V0H3.40782ZM9.71082 6.78307V10.1043H6.38865V12.6788H9.71082V16H12.2844V12.6788H15.6066V10.1043H12.2844V6.78307H9.71082Z" fill="white"/>
+</svg>
diff --git a/app/client/src/components/canvas/CreatableDropdown.tsx b/app/client/src/components/canvas/CreatableDropdown.tsx
index 59349221e0..98a698fb7b 100644
--- a/app/client/src/components/canvas/CreatableDropdown.tsx
+++ b/app/client/src/components/canvas/CreatableDropdown.tsx
@@ -38,7 +38,6 @@ class CreatableDropdown extends React.Component<DropdownProps> {
         onCreateOption={onCreateOption}
         {...input}
         onChange={value => input.onChange(value)}
-        onBlur={() => input.onBlur(input.value)}
       />
     );
   }
diff --git a/app/client/src/components/canvas/Dropdown.tsx b/app/client/src/components/canvas/Dropdown.tsx
index 5deeb69785..245825f15c 100644
--- a/app/client/src/components/canvas/Dropdown.tsx
+++ b/app/client/src/components/canvas/Dropdown.tsx
@@ -8,12 +8,13 @@ type DropdownProps = {
     label: string;
   }>;
   input: WrappedFieldInputProps;
+  placeholder: string;
 };
 
 const selectStyles = {
   control: (styles: any) => ({
     ...styles,
-    width: 100,
+    width: 120,
   }),
 };
 
@@ -21,12 +22,11 @@ export const BaseDropdown = (props: DropdownProps) => {
   const { input, options } = props;
   return (
     <Select
-      defaultValue={options[0]}
+      placeholder={props.placeholder}
       options={options}
       styles={selectStyles}
       {...input}
       onChange={value => input.onChange(value)}
-      onBlur={() => input.onBlur(input.value)}
     />
   );
 };
diff --git a/app/client/src/components/canvas/TabbedView.tsx b/app/client/src/components/canvas/TabbedView.tsx
index 2810901c6e..300ad5f330 100644
--- a/app/client/src/components/canvas/TabbedView.tsx
+++ b/app/client/src/components/canvas/TabbedView.tsx
@@ -1,18 +1,21 @@
 import React from "react";
-import { Tab, Tabs, TabList, TabPanel } from "react-tabs";
-import "react-tabs/style/react-tabs.scss";
+import { Tab, Tabs } from "@blueprintjs/core";
 import styled from "styled-components";
 
-const TabsWrapper = styled(Tabs)`
-  ul {
-    border-bottom-color: #d0d7dd;
-    li {
-      &.react-tabs__tab--selected {
-        border-color: #d0d7dd;
-        left: -1px;
-        border-radius: 0;
-        border-top: 5px solid ${props => props.theme.colors.primary};
-      }
+const TabsWrapper = styled.div`
+  padding: 0 5px;
+  .bp3-tab-indicator {
+    background-color: ${props => props.theme.colors.primary};
+  }
+  .bp3-tab {
+    &[aria-selected="true"] {
+      color: ${props => props.theme.colors.primary};
+    }
+    :hover {
+      color: ${props => props.theme.colors.primary};
+    }
+    :focus {
+      outline: none;
     }
   }
 `;
@@ -21,21 +24,23 @@ type TabbedViewComponentType = {
   tabs: Array<{
     key: string;
     title: string;
-    panelComponent: () => React.ReactNode;
+    panelComponent: JSX.Element;
   }>;
 };
 
 export const BaseTabbedView = (props: TabbedViewComponentType) => {
   return (
     <TabsWrapper>
-      <TabList>
+      <Tabs>
         {props.tabs.map(tab => (
-          <Tab key={tab.key}>{tab.title}</Tab>
+          <Tab
+            key={tab.key}
+            id={tab.key}
+            title={tab.title}
+            panel={tab.panelComponent}
+          />
         ))}
-      </TabList>
-      {props.tabs.map(tab => (
-        <TabPanel key={tab.key}>{tab.panelComponent()}</TabPanel>
-      ))}
+      </Tabs>
     </TabsWrapper>
   );
 };
diff --git a/app/client/src/components/canvas/TextInputComponent.tsx b/app/client/src/components/canvas/TextInputComponent.tsx
index 2a604ff4b3..cf5be43260 100644
--- a/app/client/src/components/canvas/TextInputComponent.tsx
+++ b/app/client/src/components/canvas/TextInputComponent.tsx
@@ -10,7 +10,7 @@ const InputStyles = css`
   border: 1px solid ${props => props.theme.colors.inputInactiveBorders};
   border-radius: 4px;
   height: 32px;
-  background-color: ${props => props.theme.colors.inputInactiveBG};
+  background-color: ${props => props.theme.colors.textOnDarkBG};
   &:focus {
     border-color: ${props => props.theme.colors.secondary};
     background-color: ${props => props.theme.colors.textOnDarkBG};
diff --git a/app/client/src/components/editor/ApiResponseView.tsx b/app/client/src/components/editor/ApiResponseView.tsx
new file mode 100644
index 0000000000..63163a20c3
--- /dev/null
+++ b/app/client/src/components/editor/ApiResponseView.tsx
@@ -0,0 +1,106 @@
+import React from "react";
+import { connect } from "react-redux";
+import { withRouter, RouteComponentProps } from "react-router";
+import FormRow from "./FormRow";
+import { BaseText } from "../canvas/TextViewComponent";
+import { BaseTabbedView } from "../canvas/TabbedView";
+import JSONViewer from "./JSONViewer";
+import styled from "styled-components";
+import { AppState } from "../../reducers";
+import { ActionApiResponse } from "../../reducers/entityReducers/actionsReducer";
+
+const ResponseWrapper = styled.div`
+  flex: 4;
+`;
+const ResponseMetaInfo = styled.div`
+  display: flex;
+  ${BaseText} {
+    color: #768896;
+    margin: 0 5px;
+  }
+`;
+
+interface ReduxStateProps {
+  responses: {
+    [id: string]: ActionApiResponse;
+  };
+}
+
+const TableWrapper = styled.div`
+  &&& {
+    table {
+      table-layout: fixed;
+      width: 100%;
+      td {
+        font-size: 12px;
+        width: 50%;
+        white-space: nowrap;
+        overflow: hidden;
+        text-overflow: ellipsis;
+      }
+    }
+  }
+`;
+
+const ResponseHeadersView = (props: {
+  data: { [name: string]: Array<string> };
+}) => {
+  if (!props.data) return <div />;
+  return (
+    <TableWrapper>
+      <table className="bp3-html-table bp3-html-table-striped bp3-html-table-condensed">
+        <thead>
+          <tr>
+            <th>Key</th>
+            <th>Value</th>
+          </tr>
+        </thead>
+        <tbody>
+          {Object.keys(props.data).map(k => (
+            <tr key={k}>
+              <td>{k}</td>
+              <td>{props.data[k].join(", ")}</td>
+            </tr>
+          ))}
+        </tbody>
+      </table>
+    </TableWrapper>
+  );
+};
+
+type Props = ReduxStateProps & RouteComponentProps<{ id: string }>;
+
+const ApiResponseView = (props: Props) => {
+  const response = props.responses[props.match.params.id] || {};
+  return (
+    <ResponseWrapper>
+      <FormRow>
+        <BaseText styleName="secondary">{response.statusCode}</BaseText>
+        <ResponseMetaInfo>
+          <BaseText styleName="secondary">300ms</BaseText>
+          <BaseText styleName="secondary">203 kb</BaseText>
+        </ResponseMetaInfo>
+      </FormRow>
+      <BaseTabbedView
+        tabs={[
+          {
+            key: "body",
+            title: "Response Body",
+            panelComponent: <JSONViewer data={response.body} />,
+          },
+          {
+            key: "headers",
+            title: "Response Headers",
+            panelComponent: <ResponseHeadersView data={response.headers} />,
+          },
+        ]}
+      />
+    </ResponseWrapper>
+  );
+};
+
+const mapStateToProps = (state: AppState): ReduxStateProps => ({
+  responses: state.entities.actions.responses,
+});
+
+export default connect(mapStateToProps)(withRouter(ApiResponseView));
diff --git a/app/client/src/components/editor/JSONEditor.tsx b/app/client/src/components/editor/JSONEditor.tsx
index 4c03a0b75e..6bb5869430 100644
--- a/app/client/src/components/editor/JSONEditor.tsx
+++ b/app/client/src/components/editor/JSONEditor.tsx
@@ -19,11 +19,12 @@ const JSONEditor = (props: any) => {
       highlightActiveLine={true}
       width="100%"
       setOptions={{
-        enableBasicAutocompletion: true,
+        enableBasicAutocompletion: false,
         enableLiveAutocompletion: false,
         enableSnippets: false,
         showLineNumbers: true,
         tabSize: 2,
+        useWorker: false,
       }}
       name={input.name}
       onBlur={aceOnBlur(input.onBlur)}
diff --git a/app/client/src/components/editor/JSONViewer.tsx b/app/client/src/components/editor/JSONViewer.tsx
index 26887be8e0..6eef67879d 100644
--- a/app/client/src/components/editor/JSONViewer.tsx
+++ b/app/client/src/components/editor/JSONViewer.tsx
@@ -5,10 +5,13 @@ import styled from "styled-components";
 const JSONViewWrapper = styled.div`
   max-height: 600px;
   overflow-y: auto;
+  & > div {
+    font-size: ${props => props.theme.fontSizes[2]}px;
+  }
 `;
 
 const JSONViewer = (props: { data: JSON }) => {
-  if (!props.data) return null;
+  if (!props.data) return <div />;
   return (
     <JSONViewWrapper>
       <ReactJson
@@ -17,9 +20,6 @@ const JSONViewer = (props: { data: JSON }) => {
         displayDataTypes={false}
         indentWidth={2}
         enableClipboard={false}
-        style={{
-          fontSize: "10px",
-        }}
       />
     </JSONViewWrapper>
   );
diff --git a/app/client/src/components/editor/Sidebar.tsx b/app/client/src/components/editor/Sidebar.tsx
index ef79175917..15e695c036 100644
--- a/app/client/src/components/editor/Sidebar.tsx
+++ b/app/client/src/components/editor/Sidebar.tsx
@@ -10,7 +10,7 @@ import WidgetSidebar from "../../pages/Editor/WidgetSidebar";
 import ApiSidebar from "../../pages/Editor/ApiSidebar";
 
 const SidebarWrapper = styled.div`
-  flex: 7;
+  flex: 9;
   background-color: ${props => props.theme.colors.paneBG};
   padding: 5px 10px;
   color: ${props => props.theme.colors.textOnDarkBG};
diff --git a/app/client/src/components/fields/DropdownField.tsx b/app/client/src/components/fields/DropdownField.tsx
index 4e303ccbe6..af760f50e9 100644
--- a/app/client/src/components/fields/DropdownField.tsx
+++ b/app/client/src/components/fields/DropdownField.tsx
@@ -9,6 +9,7 @@ interface DropdownFieldProps {
     label: string;
     value: string;
   }>;
+  placeholder: string;
 }
 
 const DropdownField = (props: DropdownFieldProps) => {
@@ -17,6 +18,7 @@ const DropdownField = (props: DropdownFieldProps) => {
       name={props.name}
       component={BaseDropdown}
       options={props.options}
+      placeholder={props.placeholder}
       format={(value: string) => _.find(props.options, { value })}
       normalize={(option: { value: string }) => option.value}
     />
diff --git a/app/client/src/components/fields/ResourcesField.tsx b/app/client/src/components/fields/ResourcesField.tsx
index caf5c15399..97b0f3fd77 100644
--- a/app/client/src/components/fields/ResourcesField.tsx
+++ b/app/client/src/components/fields/ResourcesField.tsx
@@ -32,6 +32,7 @@ const ResourcesField = (
       component={CreatableDropdown}
       isLoading={props.resources.loading}
       options={options}
+      placeholder="Resource"
       onCreateOption={props.createResource}
       format={(value: string) => _.find(options, { value })}
       normalize={(option: { value: string }) => option.value}
diff --git a/app/client/src/components/forms/ApiEditorForm.tsx b/app/client/src/components/forms/ApiEditorForm.tsx
index 174b8a193f..afe095b3c6 100644
--- a/app/client/src/components/forms/ApiEditorForm.tsx
+++ b/app/client/src/components/forms/ApiEditorForm.tsx
@@ -7,8 +7,6 @@ import {
   HTTP_METHOD_OPTIONS,
 } from "../../constants/ApiEditorConstants";
 import FormLabel from "../editor/FormLabel";
-import { BaseText } from "../canvas/TextViewComponent";
-import { BaseTabbedView } from "../canvas/TabbedView";
 import styled from "styled-components";
 import FormContainer from "../editor/FormContainer";
 import { BaseButton } from "../canvas/Button";
@@ -16,7 +14,7 @@ import KeyValueFieldArray from "../fields/KeyValueFieldArray";
 import JSONEditorField from "../fields/JSONEditorField";
 import DropdownField from "../fields/DropdownField";
 import { RestAction } from "../../api/ActionAPI";
-import JSONViewer from "../../components/editor/JSONViewer";
+import ApiResponseView from "../editor/ApiResponseView";
 import { API_EDITOR_FORM_NAME } from "../../constants/forms";
 import ResourcesField from "../fields/ResourcesField";
 
@@ -54,10 +52,11 @@ const ForwardSlash = styled.div`
 const RequestParamsWrapper = styled.div`
   flex: 5;
   border-right: 1px solid #d0d7dd;
+  overflow-y: scroll;
 `;
 
-const ResponseWrapper = styled.div`
-  flex: 4;
+const ActionButtons = styled.div`
+  flex: 1;
 `;
 
 const ActionButton = styled(BaseButton)`
@@ -65,14 +64,6 @@ const ActionButton = styled(BaseButton)`
   margin: 0 5px;
 `;
 
-const ResponseMetaInfo = styled.div`
-  display: flex;
-  ${BaseText} {
-    color: #768896;
-    margin: 0 5px;
-  }
-`;
-
 const JSONEditorFieldWrapper = styled.div`
   flex: 1;
   border: 1px solid #d0d7dd;
@@ -84,33 +75,40 @@ interface APIFormProps {
   onSaveClick: () => void;
   onRunClick: () => void;
   onDeleteClick: () => void;
-  response: any;
+  isEdit: boolean;
 }
 
 type Props = APIFormProps & InjectedFormProps<RestAction, APIFormProps>;
 
 class ApiEditorForm extends React.Component<Props> {
   render() {
-    const { onSaveClick, onDeleteClick, onRunClick } = this.props;
+    const { onSaveClick, onDeleteClick, onRunClick, isEdit } = this.props;
     return (
       <Form>
         <FormRow>
           <TextField name="name" placeholderMessage="API Name" />
-          <ActionButton
-            text="Delete"
-            styleName="error"
-            onClick={onDeleteClick}
-          />
-          <ActionButton text="Run" styleName="secondary" onClick={onRunClick} />
-          <ActionButton
-            text="Save"
-            styleName="primary"
-            filled
-            onClick={onSaveClick}
-          />
+          <ActionButtons>
+            <ActionButton
+              text="Delete"
+              styleName="error"
+              onClick={onDeleteClick}
+            />
+            <ActionButton
+              text="Run"
+              styleName="secondary"
+              onClick={onRunClick}
+            />
+            <ActionButton
+              text={isEdit ? "Update" : "Save"}
+              styleName="primary"
+              filled
+              onClick={onSaveClick}
+            />
+          </ActionButtons>
         </FormRow>
         <FormRow>
           <DropdownField
+            placeholder="Method"
             name="actionConfiguration.httpMethod"
             options={HTTP_METHOD_OPTIONS}
           />
@@ -138,35 +136,7 @@ class ApiEditorForm extends React.Component<Props> {
               </JSONEditorFieldWrapper>
             </FormRow>
           </RequestParamsWrapper>
-          <ResponseWrapper>
-            <FormRow>
-              <BaseText styleName="secondary">
-                {this.props.response.statusCode}
-              </BaseText>
-              <ResponseMetaInfo>
-                <BaseText styleName="secondary">300ms</BaseText>
-                <BaseText styleName="secondary">203 kb</BaseText>
-              </ResponseMetaInfo>
-            </FormRow>
-            <BaseTabbedView
-              tabs={[
-                {
-                  key: "body",
-                  title: "Response Body",
-                  panelComponent: () => (
-                    <JSONViewer data={this.props.response.body} />
-                  ),
-                },
-                {
-                  key: "headers",
-                  title: "Response Headers",
-                  panelComponent: () => (
-                    <JSONViewer data={this.props.response.headers} />
-                  ),
-                },
-              ]}
-            />
-          </ResponseWrapper>
+          <ApiResponseView />
         </SecondaryWrapper>
       </Form>
     );
diff --git a/app/client/src/constants/ApiEditorConstants.ts b/app/client/src/constants/ApiEditorConstants.ts
index c66324ffe6..d15c0b9ed2 100644
--- a/app/client/src/constants/ApiEditorConstants.ts
+++ b/app/client/src/constants/ApiEditorConstants.ts
@@ -6,19 +6,26 @@ export const HTTP_METHOD_OPTIONS = HTTP_METHODS.map(method => ({
 }));
 
 export const FORM_INITIAL_VALUES = {
-  resourceId: "5d808014795dc6000482bc83",
   actionConfiguration: {
     headers: [
       {
         key: "",
         value: "",
       },
+      {
+        key: "",
+        value: "",
+      },
     ],
     queryParameters: [
       {
         key: "",
         value: "",
       },
+      {
+        key: "",
+        value: "",
+      },
     ],
   },
 };
diff --git a/app/client/src/constants/DefaultTheme.tsx b/app/client/src/constants/DefaultTheme.tsx
index ca08501d5d..42c37b1d67 100644
--- a/app/client/src/constants/DefaultTheme.tsx
+++ b/app/client/src/constants/DefaultTheme.tsx
@@ -110,7 +110,7 @@ export const theme: Theme = {
       color: Colors.GEYSER_LIGHT,
     },
   ],
-  sidebarWidth: "300px",
+  sidebarWidth: "350px",
   headerHeight: "50px",
 };
 
diff --git a/app/client/src/constants/ReduxActionConstants.tsx b/app/client/src/constants/ReduxActionConstants.tsx
index dd211d45ab..3ebaee28f8 100644
--- a/app/client/src/constants/ReduxActionConstants.tsx
+++ b/app/client/src/constants/ReduxActionConstants.tsx
@@ -40,12 +40,17 @@ export const ReduxActionTypes: { [key: string]: string } = {
   FETCH_PROPERTY_PANE_CONFIGS_SUCCESS: "FETCH_PROPERTY_PANE_CONFIGS_SUCCESS",
   FETCH_CONFIGS_INIT: "FETCH_CONFIGS_INIT",
   ADD_WIDGET_REF: "ADD_WIDGET_REF",
-  CREATE_ACTION: "CREATE_ACTION",
+  CREATE_ACTION_INIT: "CREATE_ACTION_INIT",
+  CREATE_ACTION_SUCCESS: "CREATE_ACTION_SUCCESS",
   FETCH_ACTIONS_INIT: "FETCH_ACTIONS_INIT",
   FETCH_ACTIONS_SUCCESS: "FETCH_ACTIONS_SUCCESS",
   FETCH_ACTION: "FETCH_ACTION",
-  RUN_ACTION: "RUN_ACTION",
+  RUN_ACTION_INIT: "RUN_ACTION_INIT",
   RUN_ACTION_SUCCESS: "RUN_ACTION_SUCCESS",
+  UPDATE_ACTION_INIT: "UPDATE_ACTION_INIT",
+  UPDATE_ACTION_SUCCESS: "UPDATE_ACTION_SUCCESS",
+  DELETE_ACTION_INIT: "DELETE_ACTION_INIT",
+  DELETE_ACTION_SUCCESS: "DELETE_ACTION_SUCCESS",
   UPDATE_ACTION: "UPDATE_ACTION",
   DELETE_ACTION: "DELETE_ACTION",
   FETCH_RESOURCES_INIT: "FETCH_RESOURCES_INIT",
@@ -71,6 +76,8 @@ export const ReduxActionErrorTypes: { [key: string]: string } = {
   PROPERTY_PANE_ERROR: "PROPERTY_PANE_ERROR",
   FETCH_ACTIONS_ERROR: "FETCH_ACTIONS_ERROR",
   UPDATE_WIDGET_PROPERTY_ERROR: "UPDATE_WIDGET_PROPERTY_ERROR",
+  UPDATE_ACTION_ERROR: "UPDATE_ACTION_ERROR",
+  DELETE_ACTION_ERROR: "DELETE_ACTION_ERROR",
   FETCH_RESOURCES_ERROR: "FETCH_RESOURCES_ERROR",
   CREATE_RESOURCE_ERROR: "CREATE_RESOURCE_ERROR",
 };
diff --git a/app/client/src/icons/FormIcons.tsx b/app/client/src/icons/FormIcons.tsx
index 5320016246..00e937041d 100644
--- a/app/client/src/icons/FormIcons.tsx
+++ b/app/client/src/icons/FormIcons.tsx
@@ -3,6 +3,7 @@ import { Icon } from "@blueprintjs/core";
 import { IconNames } from "@blueprintjs/icons";
 import { IconProps, IconWrapper } from "../constants/IconConstants";
 import { ReactComponent as DeleteIcon } from "../assets/icons/form/trash.svg";
+import { ReactComponent as AddNewIcon } from "../assets/icons/form/add-new.svg";
 
 /* eslint-disable react/display-name */
 
@@ -14,6 +15,11 @@ export const FormIcons: {
       <DeleteIcon />
     </IconWrapper>
   ),
+  ADD_NEW_ICON: (props: IconProps) => (
+    <IconWrapper {...props}>
+      <AddNewIcon />
+    </IconWrapper>
+  ),
   PLUS_ICON: (props: IconProps) => (
     <IconWrapper {...props}>
       <Icon icon={IconNames.PLUS} color={props.color} iconSize={props.height} />
diff --git a/app/client/src/index.tsx b/app/client/src/index.tsx
index 7a15fe1647..efe425f0df 100755
--- a/app/client/src/index.tsx
+++ b/app/client/src/index.tsx
@@ -7,8 +7,9 @@ import Editor from "./pages/Editor";
 import PageNotFound from "./pages/common/PageNotFound";
 import LoginPage from "./pages/common/LoginPage";
 import * as serviceWorker from "./serviceWorker";
-import { BrowserRouter, Route, Switch } from "react-router-dom";
+import { Router, Route, Switch } from "react-router-dom";
 import { createStore, applyMiddleware } from "redux";
+import history from "./utils/history";
 import appReducer from "./reducers";
 import { ThemeProvider, theme } from "./constants/DefaultTheme";
 import createSagaMiddleware from "redux-saga";
@@ -32,14 +33,14 @@ ReactDOM.render(
   <DndProvider backend={HTML5Backend}>
     <Provider store={store}>
       <ThemeProvider theme={theme}>
-        <BrowserRouter>
+        <Router history={history}>
           <Switch>
             <Route exact path={BASE_URL} component={App} />
             <ProtectedRoute path={BUILDER_URL} component={Editor} />
             <Route exact path={LOGIN_URL} component={LoginPage} />
             <Route component={PageNotFound} />
           </Switch>
-        </BrowserRouter>
+        </Router>
       </ThemeProvider>
     </Provider>
   </DndProvider>,
diff --git a/app/client/src/normalizers/ApiFormNormalizer.ts b/app/client/src/normalizers/ApiFormNormalizer.ts
new file mode 100644
index 0000000000..e45b8e71f2
--- /dev/null
+++ b/app/client/src/normalizers/ApiFormNormalizer.ts
@@ -0,0 +1,15 @@
+import { RestAction } from "../api/ActionAPI";
+
+export const normalizeApiFormData = (formData: any): RestAction => {
+  return {
+    ...formData,
+    actionConfiguration: {
+      ...formData.actionConfiguration,
+      body: formData.actionConfiguration.body
+        ? typeof formData.actionConfiguration.body === "string"
+          ? JSON.parse(formData.actionConfiguration.body)
+          : formData.actionConfiguration.body
+        : null,
+    },
+  };
+};
diff --git a/app/client/src/pages/Editor/ApiEditor.tsx b/app/client/src/pages/Editor/ApiEditor.tsx
index 5b25ebd4b0..9dee731bd2 100644
--- a/app/client/src/pages/Editor/ApiEditor.tsx
+++ b/app/client/src/pages/Editor/ApiEditor.tsx
@@ -15,10 +15,11 @@ import { API_EDITOR_URL } from "../../constants/routes";
 import { API_EDITOR_FORM_NAME } from "../../constants/forms";
 import { ResourceDataState } from "../../reducers/entityReducers/resourcesReducer";
 import { fetchResources } from "../../actions/resourcesActions";
+import { FORM_INITIAL_VALUES } from "../../constants/ApiEditorConstants";
+import { normalizeApiFormData } from "../../normalizers/ApiFormNormalizer";
 
 interface ReduxStateProps {
   actions: RestAction[];
-  response: any;
   formData: any;
   resources: ResourceDataState;
 }
@@ -55,6 +56,9 @@ class ApiEditor extends React.Component<Props> {
 
   componentDidUpdate(prevProps: Readonly<Props>): void {
     const currentId = this.props.match.params.id;
+    if (!currentId && prevProps.match.params.id) {
+      this.props.initialize(API_EDITOR_FORM_NAME, FORM_INITIAL_VALUES);
+    }
     if (currentId && currentId !== prevProps.match.params.id) {
       const data = this.props.actions.filter(
         action => action.id === currentId,
@@ -65,17 +69,7 @@ class ApiEditor extends React.Component<Props> {
 
   handleSubmit = (values: RestAction) => {
     const { formData } = this.props;
-    const data: RestAction = {
-      ...formData,
-      actionConfiguration: {
-        ...formData.actionConfiguration,
-        body: formData.actionConfiguration.body
-          ? typeof formData.actionConfiguration.body === "string"
-            ? JSON.parse(formData.actionConfiguration.body)
-            : formData.actionConfiguration.body
-          : null,
-      },
-    };
+    const data = normalizeApiFormData(formData);
     if (data.id) {
       this.props.updateAction(data);
     } else {
@@ -100,7 +94,7 @@ class ApiEditor extends React.Component<Props> {
         onSaveClick={this.handleSaveClick}
         onDeleteClick={this.handleDeleteClick}
         onRunClick={this.handleRunClick}
-        response={this.props.response}
+        isEdit={!!this.props.match.params.id}
       />
     );
   }
@@ -108,7 +102,6 @@ class ApiEditor extends React.Component<Props> {
 
 const mapStateToProps = (state: AppState): ReduxStateProps => ({
   actions: state.entities.actions.data,
-  response: state.entities.actions.response,
   formData: getFormValues(API_EDITOR_FORM_NAME)(state),
   resources: state.entities.resources,
 });
diff --git a/app/client/src/pages/Editor/ApiSidebar.tsx b/app/client/src/pages/Editor/ApiSidebar.tsx
index 0ae610d2b1..ccd682599d 100644
--- a/app/client/src/pages/Editor/ApiSidebar.tsx
+++ b/app/client/src/pages/Editor/ApiSidebar.tsx
@@ -5,15 +5,29 @@ import styled from "styled-components";
 import { AppState } from "../../reducers";
 import { fetchActions } from "../../actions/actionActions";
 import { ActionDataState } from "../../reducers/entityReducers/actionsReducer";
-import { API_EDITOR_ID_URL } from "../../constants/routes";
+import { API_EDITOR_ID_URL, API_EDITOR_URL } from "../../constants/routes";
+import { BaseButton } from "../../components/canvas/Button";
+import { FormIcons } from "../../icons/FormIcons";
+
+const ApiSidebarWrapper = styled.div`
+  display: flex;
+  height: 100%;
+  flex-direction: column;
+`;
+const ApiItemsWrapper = styled.div`
+  flex: 1;
+`;
 
 const ApiItem = styled.div<{ isSelected: boolean }>`
+  height: 32px;
   width: 100%;
-  padding: 5px 10px;
+  padding: 5px 12px;
   border-radius: 4px;
   cursor: pointer;
   font-size: 14px;
   display: flex;
+  align-items: center;
+  margin-bottom: 2px;
   background-color: ${props =>
     props.isSelected ? props.theme.colors.paneCard : props.theme.colors.paneBG}
   :hover {
@@ -23,6 +37,7 @@ const ApiItem = styled.div<{ isSelected: boolean }>`
 
 const HTTPMethod = styled.span<{ method: string | undefined }>`
   flex: 1;
+  font-size: 12px;
   color: ${props => {
     switch (props.method) {
       case "GET":
@@ -41,6 +56,29 @@ const HTTPMethod = styled.span<{ method: string | undefined }>`
 
 const ActionName = styled.span`
   flex: 3;
+  padding: 0 2px;
+  white-space: nowrap;
+  overflow: hidden;
+  text-overflow: ellipsis;
+`;
+
+const CreateNewButton = styled(BaseButton)`
+  && {
+    border: none;
+    color: ${props => props.theme.colors.textOnDarkBG};
+    height: 32px;
+    &:hover {
+      color: ${props => props.theme.colors.paneBG};
+      svg {
+        path {
+          fill: ${props => props.theme.colors.paneBG};
+        }
+      }
+    }
+    svg {
+      height: 12px;
+    }
+  }
 `;
 
 interface ReduxStateProps {
@@ -58,28 +96,42 @@ type Props = ReduxStateProps &
 
 class ApiSidebar extends React.Component<Props> {
   componentDidMount(): void {
-    this.props.fetchActions();
+    if (!this.props.actions.data.length) {
+      this.props.fetchActions();
+    }
   }
 
+  handleCreateNew = () => {
+    const { history } = this.props;
+    history.push(API_EDITOR_URL);
+  };
+
   render() {
     const { actions, history, match } = this.props;
     const activeActionId = match.params.id;
     return (
-      <React.Fragment>
-        {actions.loading && "Loading..."}
-        {actions.data.map(action => (
-          <ApiItem
-            key={action.id}
-            onClick={() => history.push(API_EDITOR_ID_URL(action.id))}
-            isSelected={activeActionId === action.id}
-          >
-            <HTTPMethod method={action.actionConfiguration.httpMethod}>
-              {action.actionConfiguration.httpMethod}
-            </HTTPMethod>
-            <ActionName>{action.name}</ActionName>
-          </ApiItem>
-        ))}
-      </React.Fragment>
+      <ApiSidebarWrapper>
+        <ApiItemsWrapper>
+          {actions.data.map(action => (
+            <ApiItem
+              key={action.id}
+              onClick={() => history.push(API_EDITOR_ID_URL(action.id))}
+              isSelected={activeActionId === action.id}
+              className={actions.loading ? "bp3-skeleton" : ""}
+            >
+              <HTTPMethod method={action.actionConfiguration.httpMethod}>
+                {action.actionConfiguration.httpMethod}
+              </HTTPMethod>
+              <ActionName>{action.name}</ActionName>
+            </ApiItem>
+          ))}
+        </ApiItemsWrapper>
+        <CreateNewButton
+          text="Create new API"
+          icon={FormIcons.ADD_NEW_ICON()}
+          onClick={this.handleCreateNew}
+        />
+      </ApiSidebarWrapper>
     );
   }
 }
diff --git a/app/client/src/reducers/entityReducers/actionsReducer.tsx b/app/client/src/reducers/entityReducers/actionsReducer.tsx
index 7c5ecd289f..01486663de 100644
--- a/app/client/src/reducers/entityReducers/actionsReducer.tsx
+++ b/app/client/src/reducers/entityReducers/actionsReducer.tsx
@@ -11,23 +11,25 @@ import { RestAction } from "../../api/ActionAPI";
 const initialState: ActionDataState = {
   list: {},
   data: [],
-  response: {
-    body: null,
-    headers: null,
-    statusCode: "",
-  },
+  responses: {},
   loading: false,
 };
 
+export interface ActionApiResponse {
+  body: JSON;
+  headers: any;
+  statusCode: string;
+  timeTaken: number;
+  size: number;
+}
+
 export interface ActionDataState {
   list: {
     [name: string]: PageAction;
   };
   data: RestAction[];
-  response: {
-    body: any;
-    headers: any;
-    statusCode: string;
+  responses: {
+    [id: string]: ActionApiResponse;
   };
   loading: boolean;
 }
@@ -42,24 +44,51 @@ const actionsReducer = createReducer(initialState, {
     });
     return { ...state, list: { ...actionMap } };
   },
-  [ReduxActionTypes.FETCH_ACTIONS_INIT]: (state: ActionDataState) => {
-    return { ...state, loading: true };
-  },
+  [ReduxActionTypes.FETCH_ACTIONS_INIT]: (state: ActionDataState) => ({
+    ...state,
+    loading: true,
+  }),
   [ReduxActionTypes.FETCH_ACTIONS_SUCCESS]: (
     state: ActionDataState,
     action: ReduxAction<RestAction[]>,
-  ) => {
-    return { ...state, data: action.payload, loading: false };
-  },
-  [ReduxActionErrorTypes.FETCH_ACTIONS_ERROR]: (state: ActionDataState) => {
-    return { ...state, data: [], loading: false };
-  },
+  ) => ({
+    ...state,
+    data: action.payload,
+    loading: false,
+  }),
+  [ReduxActionErrorTypes.FETCH_ACTIONS_ERROR]: (state: ActionDataState) => ({
+    ...state,
+    data: [],
+    loading: false,
+  }),
   [ReduxActionTypes.RUN_ACTION_SUCCESS]: (
     state: ActionDataState,
-    action: ReduxAction<any>,
-  ) => {
-    return { ...state, response: action.payload };
-  },
+    action: ReduxAction<{ [id: string]: ActionApiResponse }>,
+  ) => ({ ...state, responses: { ...state.responses, ...action.payload } }),
+  [ReduxActionTypes.CREATE_ACTION_SUCCESS]: (
+    state: ActionDataState,
+    action: ReduxAction<RestAction>,
+  ) => ({
+    ...state,
+    data: state.data.concat([action.payload]),
+  }),
+  [ReduxActionTypes.UPDATE_ACTION_SUCCESS]: (
+    state: ActionDataState,
+    action: ReduxAction<{ data: RestAction }>,
+  ) => ({
+    ...state,
+    data: state.data.map(d => {
+      if (d.id === action.payload.data.id) return action.payload.data;
+      return d;
+    }),
+  }),
+  [ReduxActionTypes.DELETE_ACTION_SUCCESS]: (
+    state: ActionDataState,
+    action: ReduxAction<{ id: string }>,
+  ) => ({
+    ...state,
+    data: state.data.filter(d => d.id !== action.payload.id),
+  }),
 });
 
 export default actionsReducer;
diff --git a/app/client/src/sagas/ActionSagas.ts b/app/client/src/sagas/ActionSagas.ts
index ac465da586..7315dcd3b4 100644
--- a/app/client/src/sagas/ActionSagas.ts
+++ b/app/client/src/sagas/ActionSagas.ts
@@ -4,7 +4,14 @@ import {
   ReduxActionTypes,
 } from "../constants/ReduxActionConstants";
 import { Intent } from "@blueprintjs/core";
-import { all, call, select, put, takeEvery } from "redux-saga/effects";
+import {
+  all,
+  call,
+  select,
+  put,
+  takeEvery,
+  takeLatest,
+} from "redux-saga/effects";
 import { initialize } from "redux-form";
 import { ActionPayload, PageAction } from "../constants/ActionConstants";
 import ActionAPI, {
@@ -18,8 +25,14 @@ import _ from "lodash";
 import { mapToPropList } from "../utils/AppsmithUtils";
 import AppToaster from "../components/editor/ToastComponent";
 import { GenericApiResponse } from "../api/ApiResponses";
-import { fetchActions } from "../actions/actionActions";
 import { API_EDITOR_FORM_NAME } from "../constants/forms";
+import {
+  createActionSuccess,
+  deleteActionSuccess,
+  updateActionSuccess,
+} from "../actions/actionActions";
+import { API_EDITOR_ID_URL, API_EDITOR_URL } from "../constants/routes";
+import history from "../utils/history";
 
 const getDataTree = (state: AppState) => {
   return state.entities;
@@ -82,7 +95,8 @@ export function* createActionSaga(actionPayload: ReduxAction<RestAction>) {
       message: `${actionPayload.payload.name} Action created`,
       intent: Intent.SUCCESS,
     });
-    yield put(fetchActions());
+    yield put(createActionSuccess(response.data));
+    history.push(API_EDITOR_ID_URL(response.data.id));
   }
 }
 
@@ -116,7 +130,7 @@ export function* runActionSaga(actionPayload: ReduxAction<{ id: string }>) {
   const response: any = yield ActionAPI.executeAction({ actionId: id });
   yield put({
     type: ReduxActionTypes.RUN_ACTION_SUCCESS,
-    payload: response,
+    payload: { [id]: response },
   });
 }
 
@@ -135,7 +149,7 @@ export function* updateActionSaga(
       message: `${actionPayload.payload.data.name} Action updated`,
       intent: Intent.SUCCESS,
     });
-    yield put(fetchActions());
+    yield put(updateActionSuccess({ data: response.data }));
   } else {
     AppToaster.show({
       message: "Error occurred when updating action",
@@ -154,7 +168,8 @@ export function* deleteActionSaga(actionPayload: ReduxAction<{ id: string }>) {
       message: `${response.data.name} Action deleted`,
       intent: Intent.SUCCESS,
     });
-    yield put(fetchActions());
+    yield put(deleteActionSuccess({ id }));
+    history.push(API_EDITOR_URL);
   } else {
     AppToaster.show({
       message: "Error occurred when deleting action",
@@ -166,11 +181,11 @@ export function* deleteActionSaga(actionPayload: ReduxAction<{ id: string }>) {
 export function* watchActionSagas() {
   yield all([
     takeEvery(ReduxActionTypes.FETCH_ACTIONS_INIT, fetchActionsSaga),
-    takeEvery(ReduxActionTypes.EXECUTE_ACTION, executeActionSaga),
-    takeEvery(ReduxActionTypes.CREATE_ACTION, createActionSaga),
+    takeLatest(ReduxActionTypes.EXECUTE_ACTION, executeActionSaga),
+    takeLatest(ReduxActionTypes.CREATE_ACTION_INIT, createActionSaga),
     takeEvery(ReduxActionTypes.FETCH_ACTION, fetchActionSaga),
-    takeEvery(ReduxActionTypes.RUN_ACTION, runActionSaga),
-    takeEvery(ReduxActionTypes.UPDATE_ACTION, updateActionSaga),
-    takeEvery(ReduxActionTypes.DELETE_ACTION, deleteActionSaga),
+    takeLatest(ReduxActionTypes.RUN_ACTION_INIT, runActionSaga),
+    takeLatest(ReduxActionTypes.UPDATE_ACTION_INIT, updateActionSaga),
+    takeLatest(ReduxActionTypes.DELETE_ACTION_INIT, deleteActionSaga),
   ]);
 }
diff --git a/app/client/src/sagas/ResourcesSagas.ts b/app/client/src/sagas/ResourcesSagas.ts
index 973dcf9d76..da7918b438 100644
--- a/app/client/src/sagas/ResourcesSagas.ts
+++ b/app/client/src/sagas/ResourcesSagas.ts
@@ -10,6 +10,7 @@ import ResourcesApi, {
   CreateResourceConfig,
   Resource,
 } from "../api/ResourcesApi";
+import { API_EDITOR_FORM_NAME } from "../constants/forms";
 
 function* fetchResourcesSaga() {
   const response: GenericApiResponse<
@@ -37,7 +38,7 @@ function* createResourceSaga(actionPayload: ReduxAction<CreateResourceConfig>) {
       type: ReduxActionTypes.CREATE_RESOURCE_SUCCESS,
       payload: response.data,
     });
-    yield put(change("ApiEditorForm", "resourceId", response.data.id));
+    yield put(change(API_EDITOR_FORM_NAME, "resourceId", response.data.id));
   } else {
     yield put({
       type: ReduxActionTypes.CREATE_RESOURCE_ERROR,
diff --git a/app/client/src/utils/history.ts b/app/client/src/utils/history.ts
new file mode 100644
index 0000000000..84c862066d
--- /dev/null
+++ b/app/client/src/utils/history.ts
@@ -0,0 +1,2 @@
+const createHistory = require("history").createBrowserHistory;
+export default createHistory();
diff --git a/app/client/yarn.lock b/app/client/yarn.lock
index 2f0dd11311..7907ac238f 100644
--- a/app/client/yarn.lock
+++ b/app/client/yarn.lock
@@ -5587,7 +5587,7 @@ hex-color-regex@^1.1.0:
   resolved "https://registry.yarnpkg.com/hex-color-regex/-/hex-color-regex-1.1.0.tgz#4c06fccb4602fe2602b3c93df82d7e7dbf1a8a8e"
   integrity sha512-l9sfDFsuqtOqKDsQdqrMRk0U85RZc0RtOR9yPI7mRVOa4FsR/BVnZ0shmQRM96Ji99kYZP/7hn1cedc1+ApsTQ==
 
-history@^4.9.0:
+history@^4.10.1, history@^4.9.0:
   version "4.10.1"
   resolved "https://registry.yarnpkg.com/history/-/history-4.10.1.tgz#33371a65e3a83b267434e2b3f3b1b4c58aad4cf3"
   integrity sha512-36nwAD620w12kuzPAsyINPWJqlNbij+hpK1k9XRloDtym8mxzGYl2c17LnV6IAGB2Dmg4tEa7G7DlawS0+qjew==