diff --git a/apps/web/app/components/PluginCard.vue b/apps/web/app/components/PluginCard.vue
index 427a8add..980a2070 100644
--- a/apps/web/app/components/PluginCard.vue
+++ b/apps/web/app/components/PluginCard.vue
@@ -14,6 +14,7 @@ interface Plugin {
   source: PluginSource | string
   marketplaceRepo?: string
   marketplaceJsonName?: string
+  stars?: number
 }
 
 interface PluginMetadata {
@@ -237,6 +238,24 @@ const badges = computed<Badge[]>(() => {
     })
   }
 
+  // GitHub stars badge
+  if (props.plugin.stars !== null && props.plugin.stars !== undefined && props.plugin.stars >= 0) {
+    const formatStars = (count: number): string => {
+      if (count >= 1000) {
+        return `${(count / 1000).toFixed(1)}k`
+      }
+      return count.toString()
+    }
+
+    badgeList.push({
+      key: 'stars',
+      icon: 'i-heroicons-star',
+      label: formatStars(props.plugin.stars),
+      color: 'warning',
+      title: `${props.plugin.stars.toLocaleString()} GitHub stars`,
+    })
+  }
+
   return badgeList
 })
 
diff --git a/apps/web/app/pages/index.vue b/apps/web/app/pages/index.vue
index dd6796af..070b2b2e 100644
--- a/apps/web/app/pages/index.vue
+++ b/apps/web/app/pages/index.vue
@@ -35,8 +35,13 @@ const targetPluginName = computed(() => {
   return undefined
 })
 
-// Fetch marketplace data from API
-const { data: apiData, pending, error } = await useFetch<MarketplaceAPIResponse>('/api/marketplaces')
+// Fetch marketplace data using useAsyncData for SSR/ISR support
+// useAsyncData automatically handles server-side fetching and client hydration
+// Data is fetched on the server, cached, and passed to the client without re-fetching
+const { data: apiData, pending, error } = await useAsyncData(
+  'marketplaces',
+  () => $fetch<MarketplaceAPIResponse>('/api/marketplaces'),
+)
 
 // Aggregate all plugins from all marketplaces
 const allPlugins = computed(() => {
diff --git a/apps/web/app/types/marketplace.ts b/apps/web/app/types/marketplace.ts
index 154e455a..bfc820b8 100644
--- a/apps/web/app/types/marketplace.ts
+++ b/apps/web/app/types/marketplace.ts
@@ -23,6 +23,7 @@ export interface Plugin {
   author?: string | { name?: string, email?: string }
   category?: string
   source: PluginSource | string
+  stars?: number
 }
 
 export interface Marketplace {
diff --git a/apps/web/nuxt.config.ts b/apps/web/nuxt.config.ts
index f851e8f7..1d9d303f 100644
--- a/apps/web/nuxt.config.ts
+++ b/apps/web/nuxt.config.ts
@@ -7,6 +7,14 @@ export default defineNuxtConfig({
     preset: 'vercel',
   },
 
+  // ISR configuration for marketplace data
+  // Page uses server-side data fetching (useAsyncData), so only page ISR is needed
+  // Data is fetched on the server and included in the cached HTML
+  routeRules: {
+    '/': { isr: 3600 }, // Main page with embedded data: revalidate every 1 hour
+    '/api/marketplaces': { isr: 3600 }, // Keep API endpoint cached for direct API access if needed
+  },
+
   modules: [
     '@nuxt/ui',
     '@nuxt/content',
diff --git a/apps/web/server/api/marketplaces.get.ts b/apps/web/server/api/marketplaces.get.ts
index fd2a2667..00575349 100644
--- a/apps/web/server/api/marketplaces.get.ts
+++ b/apps/web/server/api/marketplaces.get.ts
@@ -1,12 +1,14 @@
 import type { AggregatedMarketplace, AggregatedPlugin, MarketplaceAPIResponse, MarketplaceSource } from '~/types/marketplace'
 import marketplaceSourcesConfig from '../marketplace-sources.json'
 import { marketplaceSchema, marketplaceSourcesConfigSchema } from '../utils/marketplace-schema'
+import { fetchPluginStars } from '../utils/github'
 
 /**
  * Fetch and aggregate multiple marketplaces
  * Uses Nuxt's built-in caching with 5-minute TTL
+ * Exported for direct use in server-side rendering
  */
-const fetchMarketplaces = defineCachedFunction(
+export const fetchMarketplaces = defineCachedFunction(
   async (): Promise<MarketplaceAPIResponse> => {
     // Validate configuration with Zod
     const validatedConfig = marketplaceSourcesConfigSchema.parse(marketplaceSourcesConfig)
@@ -30,20 +32,46 @@ const fetchMarketplaces = defineCachedFunction(
           // Validate marketplace data with Zod
           const validatedMarketplace = marketplaceSchema.parse(response)
 
-          // Transform plugins to include marketplace metadata
-          const plugins: AggregatedPlugin[] = validatedMarketplace.plugins.map(plugin => ({
-            ...plugin,
-            marketplaceRepo: source.repo,
-            marketplaceJsonName: validatedMarketplace.name,
-          }))
+          // Cache marketplace repo stars to avoid duplicate API calls
+          let marketplaceRepoStars: number | null | undefined
+
+          // Fetch GitHub stars for all plugins in parallel
+          const pluginsWithStars = await Promise.all(
+            validatedMarketplace.plugins.map(async (plugin) => {
+              let stars = plugin.stars
+
+              // Fetch stars if not already provided
+              if (stars === undefined || stars === null) {
+                // For local plugins (e.g., "./plugins/xxx"), use marketplace repo
+                if (typeof plugin.source === 'string' && plugin.source.startsWith('./')) {
+                  // Fetch marketplace repo stars only once and cache it
+                  if (marketplaceRepoStars === undefined) {
+                    marketplaceRepoStars = await fetchPluginStars(source.repo)
+                  }
+                  stars = marketplaceRepoStars
+                }
+                else {
+                  // For GitHub plugins, use plugin's own repo
+                  stars = await fetchPluginStars(plugin.source)
+                }
+              }
+
+              return {
+                ...plugin,
+                stars,
+                marketplaceRepo: source.repo,
+                marketplaceJsonName: validatedMarketplace.name,
+              }
+            }),
+          )
 
           return {
             name: source.name,
             description: source.description,
             repo: source.repo,
             marketplaceJsonName: validatedMarketplace.name,
-            pluginCount: plugins.length,
-            plugins,
+            pluginCount: pluginsWithStars.length,
+            plugins: pluginsWithStars,
           }
         }
         catch (error) {
diff --git a/apps/web/server/utils/github.ts b/apps/web/server/utils/github.ts
new file mode 100644
index 00000000..44115700
--- /dev/null
+++ b/apps/web/server/utils/github.ts
@@ -0,0 +1,99 @@
+/**
+ * GitHub API utilities for fetching repository information
+ */
+
+interface GitHubRepo {
+  stargazers_count: number
+  forks_count: number
+  open_issues_count: number
+  updated_at: string
+}
+
+/**
+ * Extract owner and repo from GitHub URL or repo string
+ * @param source - GitHub URL (https://github.com/owner/repo) or repo string (owner/repo)
+ * @returns Object with owner and repo, or null if invalid
+ */
+export function parseGitHubRepo(source: string): { owner: string, repo: string } | null {
+  try {
+    // Handle URL format: https://github.com/owner/repo
+    if (source.startsWith('http')) {
+      const url = new URL(source)
+      const parts = url.pathname.split('/').filter(Boolean)
+      if (parts.length >= 2) {
+        return { owner: parts[0], repo: parts[1] }
+      }
+    }
+
+    // Handle repo format: owner/repo
+    const parts = source.split('/')
+    if (parts.length === 2 && parts[0] && parts[1]) {
+      return { owner: parts[0], repo: parts[1] }
+    }
+
+    return null
+  }
+  catch {
+    return null
+  }
+}
+
+/**
+ * Fetch GitHub repository star count
+ * @param owner - Repository owner
+ * @param repo - Repository name
+ * @returns Star count, or null if fetch fails
+ */
+export async function fetchGitHubStars(owner: string, repo: string): Promise<number | null> {
+  try {
+    const url = `https://api.github.com/repos/${owner}/${repo}`
+
+    // Use GitHub token if available to increase rate limit
+    const headers: HeadersInit = {
+      'Accept': 'application/vnd.github.v3+json',
+      'User-Agent': 'claude-code-plugins-marketplace',
+    }
+
+    const githubToken = process.env.GITHUB_TOKEN
+    if (githubToken) {
+      headers.Authorization = `token ${githubToken}`
+    }
+
+    const response = await $fetch<GitHubRepo>(url, {
+      headers,
+      // Add timeout to prevent hanging
+      timeout: 5000,
+    })
+
+    return response.stargazers_count
+  }
+  catch (error) {
+    console.warn(`Failed to fetch stars for ${owner}/${repo}:`, error)
+    return null
+  }
+}
+
+/**
+ * Fetch stars for a plugin based on its source
+ * @param source - Plugin source (GitHub URL or repo string)
+ * @returns Star count, or null if fetch fails
+ */
+export async function fetchPluginStars(source: string | { source: string, repo: string }): Promise<number | null> {
+  // Handle object format with repo property
+  if (typeof source === 'object' && source.repo) {
+    const parsed = parseGitHubRepo(source.repo)
+    if (!parsed)
+      return null
+    return fetchGitHubStars(parsed.owner, parsed.repo)
+  }
+
+  // Handle string format
+  if (typeof source === 'string') {
+    const parsed = parseGitHubRepo(source)
+    if (!parsed)
+      return null
+    return fetchGitHubStars(parsed.owner, parsed.repo)
+  }
+
+  return null
+}
\ No newline at end of file
diff --git a/apps/web/server/utils/marketplace-schema.ts b/apps/web/server/utils/marketplace-schema.ts
index 124fc269..1e48ad6d 100644
--- a/apps/web/server/utils/marketplace-schema.ts
+++ b/apps/web/server/utils/marketplace-schema.ts
@@ -26,6 +26,7 @@ export const pluginSchema = z.object({
   ]).optional(),
   category: z.string().optional(),
   source: pluginSourceSchema,
+  stars: z.number().optional(),
 })
 
 export const marketplaceSchema = z.object({