diff --git a/src/server/api/apps.ts b/src/server/api/apps.ts
index 5c44124..30059af 100644
--- a/src/server/api/apps.ts
+++ b/src/server/api/apps.ts
@@ -16,10 +16,8 @@ const router = Hype.router()
 
 // BackendApp -> SharedApp
 function convert(app: BackendApp): SharedApp {
-  const clone = { ...app }
-  delete clone.proc
-  delete clone.logs
-  return clone
+  const { proc, logs, ...rest } = app
+  return { ...rest, pid: proc?.pid }
 }
 
 // SSE endpoint for real-time app state updates
diff --git a/src/server/index.tsx b/src/server/index.tsx
index 2bfde77..37cfd88 100644
--- a/src/server/index.tsx
+++ b/src/server/index.tsx
@@ -22,6 +22,35 @@ app.get('/tool/:tool', c => {
   return c.redirect(url)
 })
 
+// Tool API proxy: /api/tools/:tool/* -> proxy to tool port
+app.all('/api/tools/:tool/:path{.+}', async c => {
+  const toolName = c.req.param('tool')
+  const tool = allApps().find(a => a.tool && a.name === toolName)
+  if (!tool || tool.state !== 'running' || !tool.port) {
+    return c.json({ error: `Tool "${toolName}" not found or not running` }, 404)
+  }
+
+  const subPath = '/' + c.req.param('path')
+
+  // Build target URL
+  const params = new URLSearchParams(c.req.query()).toString()
+  const targetUrl = params
+    ? `http://localhost:${tool.port}${subPath}?${params}`
+    : `http://localhost:${tool.port}${subPath}`
+
+  // Proxy the request
+  const response = await fetch(targetUrl, {
+    method: c.req.method,
+    headers: c.req.raw.headers,
+    body: c.req.method !== 'GET' && c.req.method !== 'HEAD' ? c.req.raw.body : undefined,
+  })
+
+  return new Response(response.body, {
+    status: response.status,
+    headers: response.headers,
+  })
+})
+
 initApps()
 
 export default {
diff --git a/src/shared/types.ts b/src/shared/types.ts
index 0107bc0..457b5ef 100644
--- a/src/shared/types.ts
+++ b/src/shared/types.ts
@@ -23,6 +23,7 @@ export type App = {
   state: AppState
   icon: string
   error?: string
+  pid?: number
   port?: number
   started?: number
   logs?: LogLine[]