diff --git a/web/app/(commonLayout)/plugins/page.spec.tsx b/web/app/(commonLayout)/plugins/page.spec.tsx
index cd56e8680d3..e34c0550631 100644
--- a/web/app/(commonLayout)/plugins/page.spec.tsx
+++ b/web/app/(commonLayout)/plugins/page.spec.tsx
@@ -1,4 +1,5 @@
 import { beforeEach, describe, expect, it, vi } from 'vite-plus/test'
+import { MARKETPLACE_API_PREFIX } from '@/config'
 
 const mocks = vi.hoisted(() => ({
   fetch: vi.fn(),
@@ -41,6 +42,41 @@ describe('PluginList', () => {
     expect(mocks.redirect).toHaveBeenCalledWith(
       '/integrations/tools/built-in?package-ids=%5B%22langgenius%2Fexample-tool%22%5D',
     )
+    expect(mocks.fetch).toHaveBeenCalledWith(
+      `${MARKETPLACE_API_PREFIX}/plugins/langgenius/example-tool`,
+      { cache: 'no-store' },
+    )
+  })
+
+  it('resolves a full package identifier through the identifier endpoint', async () => {
+    const packageId = 'langgenius/example-tool:1.0.0@checksum'
+    mocks.fetch.mockResolvedValue({
+      ok: true,
+      json: vi.fn().mockResolvedValue({
+        data: {
+          plugin: {
+            category: 'tool',
+          },
+        },
+      }),
+    })
+    const { default: PluginList } = await import('./page')
+
+    await expect(
+      PluginList({
+        searchParams: Promise.resolve({
+          'package-ids': JSON.stringify([packageId]),
+        }),
+      }),
+    ).rejects.toThrow('NEXT_REDIRECT')
+
+    expect(mocks.fetch).toHaveBeenCalledWith(
+      `${MARKETPLACE_API_PREFIX}/plugins/identifier?unique_identifier=${encodeURIComponent(packageId)}`,
+      { cache: 'no-store' },
+    )
+    expect(mocks.redirect).toHaveBeenCalledWith(
+      `/integrations/tools/built-in?package-ids=${encodeURIComponent(JSON.stringify([packageId]))}`,
+    )
   })
 
   it('redirects to integrations when category resolution fails', async () => {
diff --git a/web/app/(commonLayout)/plugins/page.tsx b/web/app/(commonLayout)/plugins/page.tsx
index f22d0e2a811..e26fc91ca28 100644
--- a/web/app/(commonLayout)/plugins/page.tsx
+++ b/web/app/(commonLayout)/plugins/page.tsx
@@ -4,6 +4,7 @@ import {
   getInstallRedirectPathByPluginCategory,
   getInstallRedirectPathFromSearchParams,
   getLegacyPluginRedirectPath,
+  parseMarketplacePluginId,
   shouldResolveInstallCategoryRedirect,
 } from '@/app/components/plugins/plugin-routes'
 import { MARKETPLACE_API_PREFIX } from '@/config'
@@ -23,10 +24,11 @@ type MarketplaceManifestCategoryResponse = {
 
 const fetchPluginCategoryFromMarketplace = async (packageId: string) => {
   try {
-    const response = await fetch(
-      `${MARKETPLACE_API_PREFIX}/plugins/identifier?unique_identifier=${encodeURIComponent(packageId)}`,
-      { cache: 'no-store' },
-    )
+    const pluginId = parseMarketplacePluginId(packageId)
+    const path = pluginId
+      ? `/plugins/${encodeURIComponent(pluginId.org)}/${encodeURIComponent(pluginId.name)}`
+      : `/plugins/identifier?unique_identifier=${encodeURIComponent(packageId)}`
+    const response = await fetch(`${MARKETPLACE_API_PREFIX}${path}`, { cache: 'no-store' })
 
     if (!response.ok) return undefined
 
diff --git a/web/app/components/integrations/__tests__/plugin-category-page.spec.tsx b/web/app/components/integrations/__tests__/plugin-category-page.spec.tsx
index 7bc623ce72a..edf6eb305e6 100644
--- a/web/app/components/integrations/__tests__/plugin-category-page.spec.tsx
+++ b/web/app/components/integrations/__tests__/plugin-category-page.spec.tsx
@@ -7,6 +7,7 @@ import PluginCategoryPage from '../plugin-category-page'
 const {
   mockContainerRef,
   mockFetchManifestFromMarketPlace,
+  mockFetchPluginInfoFromMarketPlace,
   mockSetInstallState,
   mockUseUploader,
   mockUsePluginInstallation,
@@ -14,6 +15,7 @@ const {
 } = vi.hoisted(() => ({
   mockContainerRef: { current: null },
   mockFetchManifestFromMarketPlace: vi.fn(),
+  mockFetchPluginInfoFromMarketPlace: vi.fn(),
   mockSetInstallState: vi.fn(),
   mockUseUploader: vi.fn((_: unknown) => ({
     dragging: false,
@@ -108,6 +110,8 @@ vi.mock('@/hooks/use-query-params', () => ({
 
 vi.mock('@/service/plugins', () => ({
   fetchManifestFromMarketPlace: (...args: unknown[]) => mockFetchManifestFromMarketPlace(...args),
+  fetchPluginInfoFromMarketPlace: (...args: unknown[]) =>
+    mockFetchPluginInfoFromMarketPlace(...args),
 }))
 
 type UploaderOptions = {
@@ -280,6 +284,49 @@ describe('PluginCategoryPage', () => {
     expect(mockSetInstallState).toHaveBeenCalledWith(null)
   })
 
+  it('resolves a marketplace package name before opening the installer', async () => {
+    const packageId = 'langgenius/confluence_datasource'
+    const uniqueIdentifier =
+      'langgenius/confluence_datasource:0.2.9@923a18de89d8cdb7f419d0dff60bf08a8b81b65fef6bf606cf0ce4b0ee56a9ca'
+    mockUsePluginInstallation.mockReturnValue([
+      { packageId, bundleInfo: null },
+      mockSetInstallState,
+    ])
+    mockFetchPluginInfoFromMarketPlace.mockResolvedValue({
+      data: {
+        plugin: {
+          latest_package_identifier: uniqueIdentifier,
+        },
+      },
+    })
+    mockFetchManifestFromMarketPlace.mockResolvedValue({
+      data: {
+        plugin: {
+          org: 'langgenius',
+          name: 'confluence_datasource',
+          category: PluginCategoryEnum.datasource,
+        },
+        version: { version: '0.2.9' },
+      },
+    })
+
+    render(<PluginCategoryPage category={PluginCategoryEnum.datasource} />)
+
+    await waitFor(() => {
+      expect(mockFetchPluginInfoFromMarketPlace).toHaveBeenCalledWith({
+        name: 'confluence_datasource',
+        org: 'langgenius',
+      })
+      expect(mockFetchManifestFromMarketPlace).toHaveBeenCalledWith(
+        encodeURIComponent(uniqueIdentifier),
+      )
+      expect(screen.getByTestId('install-from-marketplace')).toHaveAttribute(
+        'data-unique-identifier',
+        uniqueIdentifier,
+      )
+    })
+  })
+
   it('ignores dropped files when install permission is unavailable', () => {
     render(<PluginCategoryPage canInstall={false} category={PluginCategoryEnum.agent} />)
 
diff --git a/web/app/components/plugins/install-plugin/hooks/use-install-from-marketplace-query.ts b/web/app/components/plugins/install-plugin/hooks/use-install-from-marketplace-query.ts
index 881f740eb9f..17d31b2cb2f 100644
--- a/web/app/components/plugins/install-plugin/hooks/use-install-from-marketplace-query.ts
+++ b/web/app/components/plugins/install-plugin/hooks/use-install-from-marketplace-query.ts
@@ -2,15 +2,29 @@
 
 import type { Dependency, PluginDeclaration, PluginManifestInMarket } from '../../types'
 import { useEffect, useState } from 'react'
+import { parseMarketplacePluginId } from '@/app/components/plugins/plugin-routes'
 import { MARKETPLACE_API_PREFIX } from '@/config'
 import { usePluginInstallation } from '@/hooks/use-query-params'
-import { fetchBundleInfoFromMarketPlace, fetchManifestFromMarketPlace } from '@/service/plugins'
+import {
+  fetchBundleInfoFromMarketPlace,
+  fetchManifestFromMarketPlace,
+  fetchPluginInfoFromMarketPlace,
+} from '@/service/plugins'
 
 type MarketplaceInstall = {
   manifest: PluginDeclaration | PluginManifestInMarket
+  packageId: string
   uniqueIdentifier: string
 }
 
+async function resolveMarketplaceUniqueIdentifier(packageId: string) {
+  const pluginId = parseMarketplacePluginId(packageId)
+  if (!pluginId) return packageId
+
+  const { data } = await fetchPluginInfoFromMarketPlace(pluginId)
+  return data.plugin.latest_package_identifier
+}
+
 export type UseInstallFromMarketplaceQueryOptions = {
   canInstallPlugin: boolean
   isPermissionLoading?: boolean
@@ -42,7 +56,8 @@ export const useInstallFromMarketplaceQuery = ({
     const loadMarketplaceInstall = async () => {
       if (packageId) {
         try {
-          const { data } = await fetchManifestFromMarketPlace(encodeURIComponent(packageId))
+          const uniqueIdentifier = await resolveMarketplaceUniqueIdentifier(packageId)
+          const { data } = await fetchManifestFromMarketPlace(encodeURIComponent(uniqueIdentifier))
           if (ignore) return
 
           const { plugin, version } = data
@@ -50,7 +65,8 @@ export const useInstallFromMarketplaceQuery = ({
           if (redirected) return
 
           setMarketplaceInstall({
-            uniqueIdentifier: packageId,
+            packageId,
+            uniqueIdentifier,
             manifest: {
               ...plugin,
               version: version.version,
@@ -103,7 +119,6 @@ export const useInstallFromMarketplaceQuery = ({
     dependencies,
     hideInstallFromMarketplace,
     isShowInstallFromMarketplace,
-    marketplaceInstall:
-      marketplaceInstall?.uniqueIdentifier === packageId ? marketplaceInstall : null,
+    marketplaceInstall: marketplaceInstall?.packageId === packageId ? marketplaceInstall : null,
   }
 }
diff --git a/web/app/components/plugins/plugin-routes.ts b/web/app/components/plugins/plugin-routes.ts
index dcfd6614b2b..fa36fbba3ab 100644
--- a/web/app/components/plugins/plugin-routes.ts
+++ b/web/app/components/plugins/plugin-routes.ts
@@ -37,6 +37,13 @@ const getFirstSearchParamValue = (value: string | string[] | undefined) => {
   return value
 }
 
+export const parseMarketplacePluginId = (packageId: string) => {
+  const [org, name, ...extraParts] = packageId.split('/')
+  if (!org || !name || extraParts.length || name.includes(':')) return null
+
+  return { name, org }
+}
+
 const hasInstallSearchParams = (searchParams: LegacyPluginsSearchParams) => {
   return Object.keys(searchParams).some((key) => installSearchParamKeys.has(key))
 }