diff --git a/web/app/components/plugins/plugin-detail-panel/multiple-tool-selector/index.spec.tsx b/web/app/components/plugins/plugin-detail-panel/multiple-tool-selector/index.spec.tsx
index 288289b64d..90e2ec2b03 100644
--- a/web/app/components/plugins/plugin-detail-panel/multiple-tool-selector/index.spec.tsx
+++ b/web/app/components/plugins/plugin-detail-panel/multiple-tool-selector/index.spec.tsx
@@ -192,10 +192,11 @@ type RenderOptions = {
   availableNodes?: Node[]
   nodeId?: string
   versionSupported?: boolean
+  sandboxEnabled?: boolean
 }
 
 const renderComponent = (options: RenderOptions = {}) => {
-  const { versionSupported, ...overrides } = options
+  const { versionSupported, sandboxEnabled, ...overrides } = options
   const defaultProps = {
     disabled: false,
     value: [],
@@ -216,7 +217,10 @@ const renderComponent = (options: RenderOptions = {}) => {
   return {
     ...render(
       <QueryClientProvider client={queryClient}>
-        <MCPToolAvailabilityProvider versionSupported={versionSupported}>
+        <MCPToolAvailabilityProvider
+          versionSupported={versionSupported}
+          sandboxEnabled={sandboxEnabled}
+        >
           <MultipleToolSelector {...props} />
         </MCPToolAvailabilityProvider>
       </QueryClientProvider>,
@@ -447,6 +451,23 @@ describe('MultipleToolSelector', () => {
       expect(screen.getByText('1/2')).toBeInTheDocument()
     })
 
+    it('should not count MCP tools when sandbox is disabled', () => {
+      // Arrange
+      const mcpTools = [createMCPTool({ id: 'mcp-provider' })]
+      mockMCPToolsData.mockReturnValue(mcpTools)
+
+      const tools = [
+        createToolValue({ tool_name: 'tool-1', provider_name: 'regular-provider', enabled: true }),
+        createToolValue({ tool_name: 'mcp-tool', provider_name: 'mcp-provider', enabled: true }),
+      ]
+
+      // Act
+      renderComponent({ value: tools, sandboxEnabled: false })
+
+      // Assert
+      expect(screen.getByText('1/2')).toBeInTheDocument()
+    })
+
     it('should manage open state for add tool panel', () => {
       // Arrange
       const { container } = renderComponent()
diff --git a/web/app/components/workflow-app/components/workflow-main.tsx b/web/app/components/workflow-app/components/workflow-main.tsx
index 38a044f088..825ffebc20 100644
--- a/web/app/components/workflow-app/components/workflow-main.tsx
+++ b/web/app/components/workflow-app/components/workflow-main.tsx
@@ -3,8 +3,9 @@ import {
   useCallback,
   useMemo,
 } from 'react'
-import { useFeaturesStore } from '@/app/components/base/features/hooks'
+import { useFeatures, useFeaturesStore } from '@/app/components/base/features/hooks'
 import { WorkflowWithInnerContext } from '@/app/components/workflow'
+import { MCPToolAvailabilityProvider } from '@/app/components/workflow/nodes/_base/components/mcp-tool-availability'
 import { useWorkflowStore } from '@/app/components/workflow/store'
 import {
   useAvailableNodesMetaData,
@@ -26,6 +27,7 @@ const WorkflowMain = ({
   edges,
   viewport,
 }: WorkflowMainProps) => {
+  const sandboxEnabled = useFeatures(state => state.features.sandbox?.enabled) ?? false
   const featuresStore = useFeaturesStore()
   const workflowStore = useWorkflowStore()
 
@@ -183,7 +185,9 @@ const WorkflowMain = ({
       onWorkflowDataUpdate={handleWorkflowDataUpdate}
       hooksStore={hooksStore as any}
     >
-      <WorkflowChildren />
+      <MCPToolAvailabilityProvider sandboxEnabled={sandboxEnabled}>
+        <WorkflowChildren />
+      </MCPToolAvailabilityProvider>
     </WorkflowWithInnerContext>
   )
 }
diff --git a/web/app/components/workflow/nodes/_base/components/mcp-tool-availability.tsx b/web/app/components/workflow/nodes/_base/components/mcp-tool-availability.tsx
index d32899a945..8a2ab8fd9a 100644
--- a/web/app/components/workflow/nodes/_base/components/mcp-tool-availability.tsx
+++ b/web/app/components/workflow/nodes/_base/components/mcp-tool-availability.tsx
@@ -4,6 +4,7 @@ import { createContext, useContext } from 'react'
 
 type MCPToolAvailabilityContextValue = {
   versionSupported?: boolean
+  sandboxEnabled?: boolean
 }
 
 const MCPToolAvailabilityContext = createContext<MCPToolAvailabilityContextValue | undefined>(undefined)
@@ -11,28 +12,53 @@ const MCPToolAvailabilityContext = createContext<MCPToolAvailabilityContextValue
 export type MCPToolAvailability = {
   allowed: boolean
   versionSupported?: boolean
+  sandboxEnabled?: boolean
+  blockedBy?: 'version' | 'sandbox'
 }
 
 export const MCPToolAvailabilityProvider = ({
   versionSupported,
+  sandboxEnabled,
   children,
 }: {
   versionSupported?: boolean
+  sandboxEnabled?: boolean
   children: ReactNode
-}) => (
-  <MCPToolAvailabilityContext.Provider value={{ versionSupported }}>
-    {children}
-  </MCPToolAvailabilityContext.Provider>
-)
+}) => {
+  const parentContext = useContext(MCPToolAvailabilityContext)
+  const value = {
+    versionSupported: versionSupported !== undefined
+      ? versionSupported
+      : parentContext?.versionSupported,
+    sandboxEnabled: sandboxEnabled !== undefined
+      ? sandboxEnabled
+      : parentContext?.sandboxEnabled,
+  }
+  return (
+    <MCPToolAvailabilityContext.Provider value={value}>
+      {children}
+    </MCPToolAvailabilityContext.Provider>
+  )
+}
 
 export const useMCPToolAvailability = (): MCPToolAvailability => {
   const context = useContext(MCPToolAvailabilityContext)
   if (context === undefined)
     return { allowed: true }
 
-  const { versionSupported } = context
+  const { versionSupported, sandboxEnabled } = context
+  const versionAllowed = versionSupported ?? true
+  const sandboxAllowed = sandboxEnabled ?? true
+  const allowed = versionAllowed && sandboxAllowed
+  let blockedBy: MCPToolAvailability['blockedBy']
+  if (!versionAllowed)
+    blockedBy = 'version'
+  else if (!sandboxAllowed)
+    blockedBy = 'sandbox'
   return {
-    allowed: versionSupported === true,
+    allowed,
     versionSupported,
+    sandboxEnabled,
+    blockedBy,
   }
 }
diff --git a/web/app/components/workflow/nodes/_base/components/mcp-tool-not-support-tooltip.tsx b/web/app/components/workflow/nodes/_base/components/mcp-tool-not-support-tooltip.tsx
index 671459bbbd..1c628c749e 100644
--- a/web/app/components/workflow/nodes/_base/components/mcp-tool-not-support-tooltip.tsx
+++ b/web/app/components/workflow/nodes/_base/components/mcp-tool-not-support-tooltip.tsx
@@ -4,14 +4,19 @@ import { RiAlertFill } from '@remixicon/react'
 import * as React from 'react'
 import { useTranslation } from 'react-i18next'
 import Tooltip from '@/app/components/base/tooltip'
+import { useMCPToolAvailability } from './mcp-tool-availability'
 
 const McpToolNotSupportTooltip: FC = () => {
   const { t } = useTranslation()
+  const { blockedBy } = useMCPToolAvailability()
+  const messageKey = blockedBy === 'sandbox'
+    ? 'detailPanel.toolSelector.mcpToolSandboxOnly'
+    : 'detailPanel.toolSelector.unsupportedMCPTool'
   return (
     <Tooltip
       popupContent={(
         <div className="w-[256px]">
-          {t('detailPanel.toolSelector.unsupportedMCPTool', { ns: 'plugin' })}
+          {t(messageKey, { ns: 'plugin' })}
         </div>
       )}
     >
diff --git a/web/i18n/en-US/plugin.json b/web/i18n/en-US/plugin.json
index c7f091a442..95c911224b 100644
--- a/web/i18n/en-US/plugin.json
+++ b/web/i18n/en-US/plugin.json
@@ -122,6 +122,7 @@
   "detailPanel.toolSelector.descriptionLabel": "Tool description",
   "detailPanel.toolSelector.descriptionPlaceholder": "Brief description of the tool's purpose, e.g., get the temperature for a specific location.",
   "detailPanel.toolSelector.empty": "Click the '+' button to add tools. You can add multiple tools.",
+  "detailPanel.toolSelector.mcpToolSandboxOnly": "MCP tools are only available in sandbox mode.",
   "detailPanel.toolSelector.params": "REASONING CONFIG",
   "detailPanel.toolSelector.paramsTip1": "Controls LLM inference parameters.",
   "detailPanel.toolSelector.paramsTip2": "When 'Auto' is off, the default value is used.",
diff --git a/web/i18n/zh-Hans/plugin.json b/web/i18n/zh-Hans/plugin.json
index 703bd4e6ea..e3efaa53eb 100644
--- a/web/i18n/zh-Hans/plugin.json
+++ b/web/i18n/zh-Hans/plugin.json
@@ -122,6 +122,7 @@
   "detailPanel.toolSelector.descriptionLabel": "工具描述",
   "detailPanel.toolSelector.descriptionPlaceholder": "简要描述工具目的，例如，获取特定位置的温度。",
   "detailPanel.toolSelector.empty": "点击 \"+\" 按钮添加工具。您可以添加多个工具。",
+  "detailPanel.toolSelector.mcpToolSandboxOnly": "MCP 工具仅在沙箱模式下可用。",
   "detailPanel.toolSelector.params": "推理配置",
   "detailPanel.toolSelector.paramsTip1": "控制 LLM 推理参数。",
   "detailPanel.toolSelector.paramsTip2": "当“自动”关闭时，使用默认值。",