diff --git a/src/api/auth.ts b/src/api/auth.ts
new file mode 100644
index 0000000..6ee752d
--- /dev/null
+++ b/src/api/auth.ts
@@ -0,0 +1,29 @@
+import axios, { AxiosResponse } from 'axios'
+import { TAuthResponse } from 'localTypes/auth'
+import { handleError } from './handleResponse'
+
+export const login = async (): Promise<TAuthResponse | undefined> => {
+  let response: AxiosResponse<TAuthResponse> | undefined
+
+  try {
+    response = await axios.get<TAuthResponse>('/oauth/token', { withCredentials: true })
+  } catch (error) {
+    handleError(error)
+  }
+
+  return response?.data
+}
+
+export const logout = async (): Promise<TAuthResponse | undefined> => {
+  let response: AxiosResponse<TAuthResponse> | undefined
+
+  try {
+    response = await axios.get<TAuthResponse>('/oauth/logout', { withCredentials: true })
+  } catch (error) {
+    handleError(error)
+  } finally {
+    window.location.reload()
+  }
+
+  return response?.data
+}
diff --git a/src/api/handleResponse.ts b/src/api/handleResponse.ts
new file mode 100644
index 0000000..e538965
--- /dev/null
+++ b/src/api/handleResponse.ts
@@ -0,0 +1,20 @@
+import axios, { isAxiosError } from 'axios'
+
+// eslint-disable-next-line @typescript-eslint/no-explicit-any
+export const handleError = (error: any) => {
+  if (isAxiosError(error)) {
+    if (error.status === 401) {
+      try {
+        axios.get('/oauth/logout', {
+          method: 'GET',
+          withCredentials: true,
+        })
+      } finally {
+        window.location.reload()
+      }
+    }
+    throw new Error(`Request failed with status ${error.status}: ${error.message}`)
+  } else {
+    throw new Error('Non axios error')
+  }
+}
diff --git a/src/components/organisms/Header/Header.tsx b/src/components/organisms/Header/Header.tsx
new file mode 100644
index 0000000..1191c6b
--- /dev/null
+++ b/src/components/organisms/Header/Header.tsx
@@ -0,0 +1,45 @@
+import React, { FC } from 'react'
+import { Row, Col } from 'antd'
+import { useParams } from 'react-router-dom'
+import { AccessGroups, Documentation, Logo, ManageableSidebar, Selector, User } from './organisms'
+
+export const Header: FC = () => {
+  const { projectName, instanceName, clusterName, entryType, namespace, syntheticProject } = useParams()
+
+  const possibleProject = syntheticProject && namespace ? syntheticProject : namespace
+  const possibleInstance = syntheticProject && namespace ? namespace : undefined
+
+  return (
+    <Row>
+      <Col span={2}>
+        <Logo />
+      </Col>
+      <Col span={8}>
+        <Selector
+          clusterName={clusterName}
+          projectName={projectName || possibleProject}
+          instanceName={instanceName || possibleInstance}
+        />
+      </Col>
+      <Col span={8}>
+        <ManageableSidebar
+          clusterName={clusterName}
+          entryType={entryType}
+          instanceName={instanceName}
+          projectName={projectName}
+        />
+      </Col>
+      <Col span={2}>
+        {instanceName && projectName && (
+          <AccessGroups clusterName={clusterName} instanceName={instanceName} projectName={projectName} />
+        )}
+      </Col>
+      <Col span={2}>
+        <Documentation key="SidebarDocumentation" />
+      </Col>
+      <Col span={2}>
+        <User key="SidebarUser" />
+      </Col>
+    </Row>
+  )
+}
diff --git a/src/components/organisms/Header/index.ts b/src/components/organisms/Header/index.ts
new file mode 100644
index 0000000..f887995
--- /dev/null
+++ b/src/components/organisms/Header/index.ts
@@ -0,0 +1 @@
+export * from './Header'
diff --git a/src/components/organisms/Header/organisms/AccessGroups/AccessGroups.tsx b/src/components/organisms/Header/organisms/AccessGroups/AccessGroups.tsx
new file mode 100644
index 0000000..2b04eba
--- /dev/null
+++ b/src/components/organisms/Header/organisms/AccessGroups/AccessGroups.tsx
@@ -0,0 +1,46 @@
+import React, { FC, useCallback } from 'react'
+import { notification } from 'antd'
+import { FireOutlined } from '@ant-design/icons'
+import { useSelector } from 'react-redux'
+import { RootState } from 'store/store'
+import { Styled } from './styled'
+
+type TAccessGroupsProps = {
+  clusterName: string | undefined
+  instanceName: string
+  projectName: string
+}
+
+export const AccessGroups: FC<TAccessGroupsProps> = ({ clusterName, projectName, instanceName }) => {
+  const [api, contextHolder] = notification.useNotification()
+  const clusterList = useSelector((state: RootState) => state.clusterList.clusterList)
+
+  const cluster = clusterList ? clusterList.find(({ name }) => name === clusterName) : undefined
+  const clusterTenant = cluster?.tenant || ''
+
+  const shortName = instanceName.startsWith(`${projectName}-`)
+    ? instanceName.substring(`${projectName}-`.length)
+    : instanceName
+
+  const value = `${projectName}:${shortName}:${clusterTenant}`
+
+  const renderValue = value.length > 37 ? `${value.slice(0, 34)}...` : value
+
+  const handleCopy = useCallback(() => {
+    navigator.clipboard.writeText(value)
+    api.success({
+      message: 'Access Group copied:',
+      description: value,
+      key: 'copy-success',
+    })
+  }, [value, api])
+
+  return (
+    <>
+      {contextHolder}
+      <Styled.FullWidthButton type="text" icon={<FireOutlined />} onClick={handleCopy}>
+        {renderValue}
+      </Styled.FullWidthButton>
+    </>
+  )
+}
diff --git a/src/components/organisms/Header/organisms/AccessGroups/index.ts b/src/components/organisms/Header/organisms/AccessGroups/index.ts
new file mode 100644
index 0000000..c78ac40
--- /dev/null
+++ b/src/components/organisms/Header/organisms/AccessGroups/index.ts
@@ -0,0 +1 @@
+export * from './AccessGroups'
diff --git a/src/components/organisms/Header/organisms/AccessGroups/styled.ts b/src/components/organisms/Header/organisms/AccessGroups/styled.ts
new file mode 100644
index 0000000..0a7265c
--- /dev/null
+++ b/src/components/organisms/Header/organisms/AccessGroups/styled.ts
@@ -0,0 +1,15 @@
+import styled from 'styled-components'
+import { Button } from 'antd'
+
+const FullWidthButton = styled(Button)`
+  width: 100%;
+  display: flex;
+  justify-content: flex-start;
+  cursor: pointer;
+  color: ${({ theme }) => theme.colorText};
+  padding-left: 16px;
+`
+
+export const Styled = {
+  FullWidthButton,
+}
diff --git a/src/components/organisms/Header/organisms/Documentation/Documentation.tsx b/src/components/organisms/Header/organisms/Documentation/Documentation.tsx
new file mode 100644
index 0000000..84ef974
--- /dev/null
+++ b/src/components/organisms/Header/organisms/Documentation/Documentation.tsx
@@ -0,0 +1,14 @@
+import React, { FC } from 'react'
+import { FileTextOutlined } from '@ant-design/icons'
+import { Styled } from './styled'
+
+export const Documentation: FC = () => {
+  const platformDocumentationUrl = '/docs'
+
+  return (
+    <Styled.FullWidthButton type="text" onClick={() => window.open(platformDocumentationUrl, '_blank')}>
+      <FileTextOutlined />
+      Documentaion
+    </Styled.FullWidthButton>
+  )
+}
diff --git a/src/components/organisms/Header/organisms/Documentation/index.ts b/src/components/organisms/Header/organisms/Documentation/index.ts
new file mode 100644
index 0000000..a1bd5de
--- /dev/null
+++ b/src/components/organisms/Header/organisms/Documentation/index.ts
@@ -0,0 +1 @@
+export * from './Documentation'
diff --git a/src/components/organisms/Header/organisms/Documentation/styled.ts b/src/components/organisms/Header/organisms/Documentation/styled.ts
new file mode 100644
index 0000000..39eec07
--- /dev/null
+++ b/src/components/organisms/Header/organisms/Documentation/styled.ts
@@ -0,0 +1,12 @@
+import styled from 'styled-components'
+import { Button } from 'antd'
+
+const FullWidthButton = styled(Button)`
+  width: 100%;
+  display: flex;
+  justify-content: flex-start;
+`
+
+export const Styled = {
+  FullWidthButton,
+}
diff --git a/src/components/organisms/Header/organisms/Logo/Logo.tsx b/src/components/organisms/Header/organisms/Logo/Logo.tsx
new file mode 100644
index 0000000..758936c
--- /dev/null
+++ b/src/components/organisms/Header/organisms/Logo/Logo.tsx
@@ -0,0 +1,19 @@
+import React, { FC } from 'react'
+import { useNavigate } from 'react-router-dom'
+import { useSelector } from 'react-redux'
+import { RootState } from 'store/store'
+import { TitleWithNoTopMargin } from 'components/atoms'
+import { Styled } from './styled'
+
+export const Logo: FC = () => {
+  const navigate = useNavigate()
+  const baseprefix = useSelector((state: RootState) => state.baseprefix.baseprefix)
+
+  return (
+    <Styled.CursorPointer>
+      <TitleWithNoTopMargin level={2} onClick={() => navigate(`${baseprefix}`)}>
+        InCloud
+      </TitleWithNoTopMargin>
+    </Styled.CursorPointer>
+  )
+}
diff --git a/src/components/organisms/Header/organisms/Logo/index.ts b/src/components/organisms/Header/organisms/Logo/index.ts
new file mode 100644
index 0000000..104895e
--- /dev/null
+++ b/src/components/organisms/Header/organisms/Logo/index.ts
@@ -0,0 +1 @@
+export * from './Logo'
diff --git a/src/components/organisms/Header/organisms/Logo/styled.ts b/src/components/organisms/Header/organisms/Logo/styled.ts
new file mode 100644
index 0000000..093c036
--- /dev/null
+++ b/src/components/organisms/Header/organisms/Logo/styled.ts
@@ -0,0 +1,9 @@
+import styled from 'styled-components'
+
+const CursorPointer = styled.div`
+  cursor: pointer;
+`
+
+export const Styled = {
+  CursorPointer,
+}
diff --git a/src/components/organisms/Header/organisms/ManageableSidebar/ManageableSidebar.tsx b/src/components/organisms/Header/organisms/ManageableSidebar/ManageableSidebar.tsx
new file mode 100644
index 0000000..8f60ccf
--- /dev/null
+++ b/src/components/organisms/Header/organisms/ManageableSidebar/ManageableSidebar.tsx
@@ -0,0 +1,44 @@
+import React, { FC } from 'react'
+import { useLocation, useParams } from 'react-router-dom'
+import { ManageableSidebarWithDataProvider } from '@prorobotech/openapi-k8s-toolkit'
+import { BASE_API_GROUP, BASE_API_VERSION } from 'constants/customizationApiGroupAndVersion'
+
+type TManageableSidebarProps = {
+  clusterName?: string
+  entryType?: string
+  instanceName?: string
+  projectName?: string
+}
+
+export const ManageableSidebar: FC<TManageableSidebarProps> = ({
+  clusterName,
+  projectName,
+  instanceName,
+  entryType,
+}) => {
+  const { pathname } = useLocation()
+  const params = useParams()
+  const namespace = params?.namespace || ''
+  const syntheticProject = params?.syntheticProject || ''
+
+  const creating = projectName === 'create' || instanceName === 'create'
+  const updating = entryType === 'update'
+  const visible = !creating && !updating
+
+  return (
+    <ManageableSidebarWithDataProvider
+      uri={`/api/clusters/${clusterName}/k8s/apis/${BASE_API_GROUP}/${BASE_API_VERSION}/sidebars/`}
+      refetchInterval={5000}
+      isEnabled={clusterName !== undefined}
+      replaceValues={{
+        clusterName,
+        projectName,
+        instanceName,
+        namespace,
+        syntheticProject,
+      }}
+      pathname={pathname}
+      hidden={!visible}
+    />
+  )
+}
diff --git a/src/components/organisms/Header/organisms/ManageableSidebar/index.ts b/src/components/organisms/Header/organisms/ManageableSidebar/index.ts
new file mode 100644
index 0000000..5133d5f
--- /dev/null
+++ b/src/components/organisms/Header/organisms/ManageableSidebar/index.ts
@@ -0,0 +1 @@
+export * from './ManageableSidebar'
diff --git a/src/components/organisms/Header/organisms/Selector/Selector.tsx b/src/components/organisms/Header/organisms/Selector/Selector.tsx
new file mode 100644
index 0000000..2e42ca7
--- /dev/null
+++ b/src/components/organisms/Header/organisms/Selector/Selector.tsx
@@ -0,0 +1,87 @@
+import React, { FC, useState } from 'react'
+import { Col, Row } from 'antd'
+import { useNavigate } from 'react-router-dom'
+import { useSelector } from 'react-redux'
+import { RootState } from 'store/store'
+import { useNavSelector } from 'hooks/useNavSelector'
+import { useMountEffect } from 'hooks/useMountEffect'
+import { EntrySelect } from './molecules'
+
+type TSelectorProps = {
+  clusterName?: string
+  projectName?: string
+  instanceName?: string
+}
+
+export const Selector: FC<TSelectorProps> = ({ clusterName, projectName, instanceName }) => {
+  const navigate = useNavigate()
+  const baseprefix = useSelector((state: RootState) => state.baseprefix.baseprefix)
+
+  const [selectedClusterName, setSelectedClusterName] = useState(clusterName)
+  const [selectedProjectName, setSelectedProjectName] = useState(projectName)
+  const [selectedInstanceName, setSelectedInstanceName] = useState(instanceName)
+
+  const { projectsInSidebar, instancesInSidebar, allInstancesLoadingSuccess, clustersInSidebar } = useNavSelector(
+    selectedClusterName,
+    projectName,
+  )
+
+  const handleClusterChange = (value: string) => {
+    setSelectedClusterName(value)
+    navigate(`${baseprefix}/clusters/${value}`)
+    setSelectedProjectName(undefined)
+    setSelectedInstanceName(undefined)
+  }
+
+  const handleProjectChange = (value: string) => {
+    setSelectedProjectName(value)
+    setSelectedInstanceName(undefined)
+    navigate(`${baseprefix}/clusters/${selectedClusterName}/projects/${value}`)
+  }
+
+  const handleInstanceChange = (value: string) => {
+    setSelectedInstanceName(value)
+    navigate(`${baseprefix}/${selectedClusterName}/${value}/${selectedProjectName}/non-crd-table/apps/v1/deployments`)
+  }
+
+  useMountEffect(() => {
+    setSelectedClusterName(clusterName)
+    setSelectedProjectName(projectName)
+    setSelectedInstanceName(instanceName)
+  }, [projectName, instanceName, clusterName])
+
+  return (
+    <Row gutter={[16, 16]}>
+      <Col span={8}>
+        <EntrySelect
+          placeholder="Cluster"
+          options={clustersInSidebar}
+          value={selectedClusterName}
+          onChange={handleClusterChange}
+        />
+      </Col>
+      <Col span={8}>
+        <EntrySelect
+          placeholder="Project"
+          options={projectsInSidebar}
+          value={selectedProjectName}
+          onChange={handleProjectChange}
+          disabled={selectedClusterName === undefined || projectsInSidebar.length === 0}
+        />
+      </Col>
+      <Col span={8}>
+        <EntrySelect
+          placeholder="Intance"
+          options={instancesInSidebar}
+          value={selectedInstanceName}
+          onChange={handleInstanceChange}
+          disabled={
+            selectedClusterName === undefined ||
+            selectedProjectName === undefined ||
+            (allInstancesLoadingSuccess && instancesInSidebar.length === 0)
+          }
+        />
+      </Col>
+    </Row>
+  )
+}
diff --git a/src/components/organisms/Header/organisms/Selector/index.ts b/src/components/organisms/Header/organisms/Selector/index.ts
new file mode 100644
index 0000000..8ea8ac3
--- /dev/null
+++ b/src/components/organisms/Header/organisms/Selector/index.ts
@@ -0,0 +1 @@
+export * from './Selector'
diff --git a/src/components/organisms/Header/organisms/Selector/molecules/EntrySelect/EntrySelect.tsx b/src/components/organisms/Header/organisms/Selector/molecules/EntrySelect/EntrySelect.tsx
new file mode 100644
index 0000000..2ba3b86
--- /dev/null
+++ b/src/components/organisms/Header/organisms/Selector/molecules/EntrySelect/EntrySelect.tsx
@@ -0,0 +1,26 @@
+import React, { FC } from 'react'
+import { Select } from 'antd'
+
+type TEntrySelectProps = {
+  placeholder: string
+  options: {
+    label: string
+    value: string
+  }[]
+  value?: string
+  onChange: (val: string) => void
+  disabled?: boolean
+}
+
+export const EntrySelect: FC<TEntrySelectProps> = ({ placeholder, value, disabled, options, onChange }) => {
+  return (
+    <Select
+      placeholder={placeholder}
+      value={value || ''}
+      options={options.map(({ value, label }) => ({ label, value }))}
+      onChange={(selectedValue: string) => onChange(selectedValue)}
+      disabled={disabled}
+      style={{ width: '100%' }}
+    />
+  )
+}
diff --git a/src/components/organisms/Header/organisms/Selector/molecules/EntrySelect/index.ts b/src/components/organisms/Header/organisms/Selector/molecules/EntrySelect/index.ts
new file mode 100644
index 0000000..c316af3
--- /dev/null
+++ b/src/components/organisms/Header/organisms/Selector/molecules/EntrySelect/index.ts
@@ -0,0 +1 @@
+export * from './EntrySelect'
diff --git a/src/components/organisms/Header/organisms/Selector/molecules/index.ts b/src/components/organisms/Header/organisms/Selector/molecules/index.ts
new file mode 100644
index 0000000..c316af3
--- /dev/null
+++ b/src/components/organisms/Header/organisms/Selector/molecules/index.ts
@@ -0,0 +1 @@
+export * from './EntrySelect'
diff --git a/src/components/organisms/Header/organisms/User/User.tsx b/src/components/organisms/Header/organisms/User/User.tsx
new file mode 100644
index 0000000..a40dd64
--- /dev/null
+++ b/src/components/organisms/Header/organisms/User/User.tsx
@@ -0,0 +1,44 @@
+import React, { FC } from 'react'
+import { Tooltip, Dropdown } from 'antd'
+import { LogoutOutlined } from '@ant-design/icons'
+import { ThemeSelector } from 'components'
+import { useAuth } from 'hooks/useAuth'
+import { logout } from 'api/auth'
+import { Styled } from './styled'
+
+export const User: FC = () => {
+  const { fullName } = useAuth()
+
+  return (
+    <Dropdown
+      placement="top"
+      menu={{
+        items: [
+          {
+            key: '1',
+            label: <ThemeSelector />,
+          },
+          {
+            key: '2',
+            label: (
+              <div onClick={() => logout()}>
+                <LogoutOutlined /> Logout
+              </div>
+            ),
+          },
+        ],
+      }}
+      trigger={['click']}
+    >
+      <Styled.FullWidthButton type="text">
+        {fullName && fullName.length > 25 ? (
+          <Tooltip title={fullName}>
+            <Styled.Name>{fullName.slice(25)}</Styled.Name>
+          </Tooltip>
+        ) : (
+          <Styled.Name>{fullName || 'User'}</Styled.Name>
+        )}
+      </Styled.FullWidthButton>
+    </Dropdown>
+  )
+}
diff --git a/src/components/organisms/Header/organisms/User/index.ts b/src/components/organisms/Header/organisms/User/index.ts
new file mode 100644
index 0000000..9b29ee6
--- /dev/null
+++ b/src/components/organisms/Header/organisms/User/index.ts
@@ -0,0 +1 @@
+export * from './User'
diff --git a/src/components/organisms/Header/organisms/User/styled.ts b/src/components/organisms/Header/organisms/User/styled.ts
new file mode 100644
index 0000000..b725efb
--- /dev/null
+++ b/src/components/organisms/Header/organisms/User/styled.ts
@@ -0,0 +1,19 @@
+import styled from 'styled-components'
+import { Button } from 'antd'
+
+const FullWidthButton = styled(Button)`
+  width: 100%;
+  display: flex;
+  justify-content: flex-start;
+`
+
+const Name = styled.span`
+  overflow: hidden;
+  white-space: nowrap;
+  text-overflow: ellipsis;
+`
+
+export const Styled = {
+  FullWidthButton,
+  Name,
+}
diff --git a/src/components/organisms/Header/organisms/index.ts b/src/components/organisms/Header/organisms/index.ts
new file mode 100644
index 0000000..7ec5046
--- /dev/null
+++ b/src/components/organisms/Header/organisms/index.ts
@@ -0,0 +1,6 @@
+export * from './Logo'
+export * from './Selector'
+export * from './ManageableSidebar'
+export * from './AccessGroups'
+export * from './Documentation'
+export * from './User'
diff --git a/src/components/organisms/index.ts b/src/components/organisms/index.ts
index 8c0246b..286f258 100644
--- a/src/components/organisms/index.ts
+++ b/src/components/organisms/index.ts
@@ -10,3 +10,4 @@ export * from './TableNonCrdInfo'
 export * from './TableBuiltinInfo'
 export * from './Forms'
 export * from './Factory'
+export * from './Header'
diff --git a/src/hooks/useAuth.ts b/src/hooks/useAuth.ts
new file mode 100644
index 0000000..5e809ae
--- /dev/null
+++ b/src/hooks/useAuth.ts
@@ -0,0 +1,35 @@
+import { useState, useEffect } from 'react'
+import { login } from 'api/auth'
+
+export const useAuth = () => {
+  const [fullName, setFullName] = useState<string>()
+  const [requester, setRequester] = useState<{ name: string; email: string }>()
+  const [loadingAuth, setLoadingAuth] = useState(false)
+  const [error, setError] = useState<string>()
+
+  useEffect(() => {
+    setLoadingAuth(true)
+    if (!fullName || !requester) {
+      login()
+        .then(data => {
+          if (data) {
+            setFullName(data.name)
+            setRequester({ name: data.name, email: data.email })
+            setLoadingAuth(false)
+          }
+        })
+        .catch(err => setError(err instanceof Error ? err.message : 'Unknown error'))
+        .finally(() => setLoadingAuth(false))
+    }
+    // eslint-disable-next-line react-hooks/exhaustive-deps
+  }, [])
+
+  if (import.meta.env.VITE_HAS_MOCKS === 'true') {
+    return {
+      fullName: 'John Doe',
+      requester: { name: 'John Doe', email: 'cK5mH@example.com', loadingAuth: false, error: undefined },
+    }
+  }
+
+  return { fullName, requester, loadingAuth, error }
+}
diff --git a/src/hooks/useMountEffect.ts b/src/hooks/useMountEffect.ts
new file mode 100644
index 0000000..a05800e
--- /dev/null
+++ b/src/hooks/useMountEffect.ts
@@ -0,0 +1,17 @@
+import { useEffect, useRef, DependencyList, EffectCallback } from 'react'
+
+export const useMountEffect = (fn: EffectCallback, deps: DependencyList) => {
+  const isMount = useRef(true)
+  const fnRef = useRef<EffectCallback>(fn)
+  fnRef.current = fn
+
+  useEffect(() => {
+    if (isMount.current) {
+      isMount.current = false
+
+      return undefined
+    }
+
+    return fnRef.current()
+  }, deps) // eslint-disable-line react-hooks/exhaustive-deps
+}
diff --git a/src/hooks/useNavSelector.ts b/src/hooks/useNavSelector.ts
new file mode 100644
index 0000000..4198035
--- /dev/null
+++ b/src/hooks/useNavSelector.ts
@@ -0,0 +1,45 @@
+import { useApiResources, TClusterList, TSingleResource } from '@prorobotech/openapi-k8s-toolkit'
+import { useSelector } from 'react-redux'
+import { RootState } from 'store/store'
+import { BASE_API_GROUP, BASE_RPROJECTS_VERSION } from 'constants/customizationApiGroupAndVersion'
+
+const mappedClusterToOptionInSidebar = ({ name }: TClusterList[number]): { value: string; label: string } => ({
+  value: name,
+  label: name,
+})
+
+const mappedToOptionInSidebar = ({ metadata }: TSingleResource): { value: string; label: string } => ({
+  value: metadata.name,
+  label: metadata.name,
+})
+
+export const useNavSelector = (clusterName?: string, projectName?: string) => {
+  const clusterList = useSelector((state: RootState) => state.clusterList.clusterList)
+
+  const { data: projects } = useApiResources({
+    clusterName: clusterName || '',
+    namespace: '',
+    apiGroup: BASE_API_GROUP,
+    apiVersion: BASE_RPROJECTS_VERSION,
+    typeName: 'projects',
+    limit: null,
+  })
+
+  const { data: instances, isSuccess: allInstancesLoadingSuccess } = useApiResources({
+    clusterName: clusterName || '',
+    namespace: '',
+    apiGroup: BASE_API_GROUP,
+    apiVersion: BASE_RPROJECTS_VERSION,
+    typeName: 'instances',
+    limit: null,
+  })
+
+  const clustersInSidebar = clusterList ? clusterList.map(mappedClusterToOptionInSidebar) : []
+  const projectsInSidebar = clusterName && projects ? projects.items.map(mappedToOptionInSidebar) : []
+  const instancesInSidebar =
+    clusterName && instances
+      ? instances.items.filter(item => item.metadata.namespace === projectName).map(mappedToOptionInSidebar)
+      : []
+
+  return { clustersInSidebar, projectsInSidebar, instancesInSidebar, allInstancesLoadingSuccess }
+}
diff --git a/src/localTypes/auth.ts b/src/localTypes/auth.ts
new file mode 100644
index 0000000..664035c
--- /dev/null
+++ b/src/localTypes/auth.ts
@@ -0,0 +1,12 @@
+export type TAuthResponse = {
+  at_hash: string
+  aud: string
+  email: string
+  email_verified: boolean
+  exp: number
+  groups: string[]
+  iat: number
+  iss: string
+  name: string
+  sub: string
+}
diff --git a/src/templates/BaseTemplate/BaseTemplate.tsx b/src/templates/BaseTemplate/BaseTemplate.tsx
index 5dc94dc..0459961 100644
--- a/src/templates/BaseTemplate/BaseTemplate.tsx
+++ b/src/templates/BaseTemplate/BaseTemplate.tsx
@@ -7,7 +7,7 @@ import type { RootState } from 'store/store'
 import { setTheme } from 'store/theme/theme/theme'
 import { setCluster } from 'store/cluster/cluster/cluster'
 import { setClusterList } from 'store/clusterList/clusterList/clusterList'
-import { DefaultLayout, DefaultColorProvider, TitleWithNoTopMargin, ThemeSelector } from 'components'
+import { DefaultLayout, DefaultColorProvider, Header } from 'components'
 import { Styled } from './styled'
 
 type TBaseTemplateProps = {
@@ -85,14 +85,9 @@ export const BaseTemplate: FC<TBaseTemplateProps> = ({ children, withNoCluster,
           <DefaultLayout.Layout $bgColor={token.colorBgLayout}>
             <DefaultLayout.ContentContainer>
               <DefaultLayout.ContentPadding $isFederation={isFederation}>
-                {!isFederation && (
-                  <Styled.TitleAndThemeToggle>
-                    <TitleWithNoTopMargin level={1}>OpenAPI UI</TitleWithNoTopMargin>
-                    {clusterListQuery.error && (
-                      <Alert message={`Cluster List Error: ${clusterListQuery.error?.message} `} type="error" />
-                    )}
-                    <ThemeSelector />
-                  </Styled.TitleAndThemeToggle>
+                <Header />
+                {clusterListQuery.error && (
+                  <Alert message={`Cluster List Error: ${clusterListQuery.error?.message} `} type="error" />
                 )}
                 {children}
               </DefaultLayout.ContentPadding>
diff --git a/src/templates/BaseTemplate/styled.ts b/src/templates/BaseTemplate/styled.ts
index ee6d5e5..cb88955 100644
--- a/src/templates/BaseTemplate/styled.ts
+++ b/src/templates/BaseTemplate/styled.ts
@@ -8,12 +8,6 @@ const Container = styled.div<TContainerProps>`
   min-height: 100vh;
 `
 
-const TitleAndThemeToggle = styled.div`
-  display: flex;
-  justify-content: space-between;
-  width: 100%;
-`
 export const Styled = {
   Container,
-  TitleAndThemeToggle,
 }