diff --git a/backend/src/api/routes.ts b/backend/src/api/routes.ts
index 88533b5..e52af66 100644
--- a/backend/src/api/routes.ts
+++ b/backend/src/api/routes.ts
@@ -1,6 +1,7 @@
 import { Router, Request, Response } from "express";
 import { getFeeStats } from "../services/horizon";
 import { stellarConfig, CONTRACT_IDS } from "../config/stellar";
+import { requireAuth } from "../middleware/auth";
 import campaignRoutes from "../routes/campaigns";
 import publisherRoutes from "../routes/publishers";
 import auctionRoutes from "../routes/auctions";
@@ -55,8 +56,41 @@ router.get("/network", async (_req: Request, res: Response) => {
   }
 });
 
-// List deployed contract IDs
-router.get("/contracts", (_req: Request, res: Response) => {
+// Account details
+router.get("/account/:address", async (req: Request, res: Response) => {
+  try {
+    const { address } = req.params;
+    const account = await getAccountDetails(address as string);
+    if (!account) {
+      return res.status(404).json({ error: "Account not found or not funded" });
+    }
+    res.json(account);
+  } catch (err: any) {
+    req.log?.error({ err }, 'Failed to fetch account details');
+    const details = process.env.NODE_ENV === 'development' ? err.message : undefined;
+    res.status(500).json({ error: 'Failed to fetch account details', ...(details && { details }) });
+  }
+});
+
+// Account transaction history
+router.get(
+  "/account/:address/transactions",
+  async (req: Request, res: Response) => {
+    try {
+      const { address } = req.params;
+      const limit = Math.min(parseInt(req.query.limit as string) || 20, 200);
+      const txs = await getAccountTransactions(address as string, limit);
+      res.json({ transactions: txs, count: txs.length });
+    } catch (err: any) {
+      req.log?.error({ err }, 'Failed to fetch account transactions');
+      const details = process.env.NODE_ENV === 'development' ? err.message : undefined;
+      res.status(500).json({ error: 'Failed to fetch account transactions', ...(details && { details }) });
+    }
+  },
+);
+
+// List deployed contract IDs (auth required)
+router.get("/contracts", requireAuth, (_req: Request, res: Response) => {
   res.json({ contracts: CONTRACT_IDS });
 });