diff --git a/deploy/nginx/omnl-common-locations.conf b/deploy/nginx/omnl-common-locations.conf
index 419242b..57cea35 100644
--- a/deploy/nginx/omnl-common-locations.conf
+++ b/deploy/nginx/omnl-common-locations.conf
@@ -11,7 +11,7 @@ location /api/v1/ {
 }
 
 location /settlement/ {
-    proxy_pass http://omnl_settlement/;
+    proxy_pass http://omnl_settlement/api/v1/settlement/;
     proxy_http_version 1.1;
     proxy_set_header Host $host;
     proxy_set_header X-Real-IP $remote_addr;
@@ -22,7 +22,7 @@ location /settlement/ {
 }
 
 location /exchange/ {
-    proxy_pass http://omnl_exchange/;
+    proxy_pass http://omnl_exchange/api/v1/exchange/;
     proxy_http_version 1.1;
     proxy_set_header Host $host;
     proxy_set_header X-Real-IP $remote_addr;
diff --git a/deploy/nginx/omnl-lxc-portal.conf b/deploy/nginx/omnl-lxc-portal.conf
index 22c663e..c7e8b49 100644
--- a/deploy/nginx/omnl-lxc-portal.conf
+++ b/deploy/nginx/omnl-lxc-portal.conf
@@ -40,14 +40,14 @@ http {
     }
 
     location /settlement/ {
-      proxy_pass http://omnl_lxc_settlement/;
+      proxy_pass http://omnl_lxc_settlement/api/v1/settlement/;
       proxy_http_version 1.1;
       proxy_set_header Host $host;
       proxy_read_timeout 120s;
     }
 
     location /exchange/ {
-      proxy_pass http://omnl_lxc_exchange/;
+      proxy_pass http://omnl_lxc_exchange/api/v1/exchange/;
       proxy_http_version 1.1;
       proxy_set_header Host $host;
       proxy_read_timeout 120s;
diff --git a/frontend-dapp/index.html b/frontend-dapp/index.html
index ba1a61c..73345a6 100644
--- a/frontend-dapp/index.html
+++ b/frontend-dapp/index.html
@@ -4,7 +4,7 @@
     <meta charset="UTF-8" />
     <link rel="icon" type="image/svg+xml" href="/vite.svg" />
     <meta name="viewport" content="width=device-width, initial-scale=1.0" />
-    <title>OMNL Mission Control — Chain 138</title>
+    <title>OMNL Mission Control - Chain 138</title>
     <style>
       html, body { margin: 0; min-height: 100%; background: #0f2847; color: #e8f4ff; }
       #root { min-height: 100vh; }
@@ -33,7 +33,7 @@
     <div id="root">
       <div class="omnl-boot" role="status" aria-live="polite">
         <div class="omnl-boot__title">OMNL Mission Control</div>
-        <div class="omnl-boot__hint">Loading dashboard…</div>
+        <div class="omnl-boot__hint">Loading dashboard...</div>
       </div>
     </div>
     <script type="module" src="/src/main.tsx"></script>
diff --git a/frontend-dapp/src/config/dex.ts b/frontend-dapp/src/config/dex.ts
index 5aeb255..b3d390e 100644
--- a/frontend-dapp/src/config/dex.ts
+++ b/frontend-dapp/src/config/dex.ts
@@ -22,6 +22,24 @@ export const SETTLEMENT_MIDDLEWARE_URL = prodOrLocal(
   '/settlement',
   'http://localhost:3011',
 );
+
+/** Production nginx maps /settlement/* → settlement-middleware /api/v1/settlement/* */
+function proxiedServiceUrl(base: string, servicePrefix: string, path: string): string {
+  const root = base.replace(/\/$/, '');
+  const suffix = path.startsWith('/') ? path : `/${path}`;
+  if (root.startsWith('/')) {
+    return `${root}${suffix}`;
+  }
+  return `${root}${servicePrefix}${suffix}`;
+}
+
+export function settlementApi(path: string): string {
+  return proxiedServiceUrl(SETTLEMENT_MIDDLEWARE_URL, '/api/v1/settlement', path);
+}
+
+export function exchangeApi(path: string): string {
+  return proxiedServiceUrl(DBIS_EXCHANGE_URL, '/api/v1/exchange', path);
+}
 export const ENHANCED_SWAP_ROUTER_V2 =
   import.meta.env.VITE_ENHANCED_SWAP_ROUTER_V2 ||
   '0xa421706768aeb7fafa2d912c5e10824ef3437ad4';
@@ -66,7 +84,7 @@ export function formatAmountFromWei(wei: string, decimals: number): string {
 }
 export async function fetchExchangeTokens(): Promise<DexToken[]> {
   try {
-    const res = await fetch(`${DBIS_EXCHANGE_URL.replace(/\/$/, '')}/api/v1/exchange/tokens`);
+    const res = await fetch(exchangeApi('/tokens'));
     if (!res.ok) return DEFAULT_TOKENS;
     const data = await res.json();
     return Array.isArray(data.tokens) && data.tokens.length > 0 ? data.tokens : DEFAULT_TOKENS;
diff --git a/frontend-dapp/src/config/supported-chains.ts b/frontend-dapp/src/config/supported-chains.ts
index a52605a..a8f7786 100644
--- a/frontend-dapp/src/config/supported-chains.ts
+++ b/frontend-dapp/src/config/supported-chains.ts
@@ -1,4 +1,4 @@
-import { SETTLEMENT_MIDDLEWARE_URL } from './dex';
+import { settlementApi } from './dex';
 
 export type OmnlChainSummary = {
   chainId: number;
@@ -21,8 +21,7 @@ export type ChainRegistryResponse = {
 
 export async function fetchOmnlChainRegistry(): Promise<ChainRegistryResponse | null> {
   try {
-    const base = SETTLEMENT_MIDDLEWARE_URL.replace(/\/$/, '');
-    const res = await fetch(`${base}/api/v1/settlement/chains`);
+    const res = await fetch(settlementApi('/chains'));
     if (!res.ok) return null;
     return res.json();
   } catch {
diff --git a/frontend-dapp/src/features/central-bank/useCentralBank.ts b/frontend-dapp/src/features/central-bank/useCentralBank.ts
index ef72df1..1f0f38f 100644
--- a/frontend-dapp/src/features/central-bank/useCentralBank.ts
+++ b/frontend-dapp/src/features/central-bank/useCentralBank.ts
@@ -1,5 +1,5 @@
 import { useCallback, useEffect, useState } from 'react';
-import { DBIS_EXCHANGE_URL, SETTLEMENT_MIDDLEWARE_URL } from '../../config/dex';
+import { exchangeApi, settlementApi } from '../../config/dex';
 
 export type MoneySupply = {
   asOf?: string;
@@ -12,14 +12,14 @@ export type MoneySupply = {
   M2?: { broadMoney?: string; gl2200?: string; metaFiatPending?: string };
 };
 
-async function loadMoneySupply(settlement: string): Promise<MoneySupply | null> {
-  const publicRes = await fetch(`${settlement}/api/v1/settlement/money-supply/public`);
+async function loadMoneySupply(): Promise<MoneySupply | null> {
+  const publicRes = await fetch(settlementApi('/money-supply/public'));
   if (publicRes.ok) return publicRes.json();
 
   const apiKey = import.meta.env.VITE_OMNL_API_KEY;
   if (!apiKey) return null;
 
-  const authRes = await fetch(`${settlement}/api/v1/settlement/money-supply`, {
+  const authRes = await fetch(settlementApi('/money-supply'), {
     headers: { Authorization: `Bearer ${apiKey}` },
   });
   return authRes.ok ? authRes.json() : null;
@@ -34,19 +34,16 @@ export function useCentralBank() {
   const [loading, setLoading] = useState(true);
   const [error, setError] = useState<string | null>(null);
 
-  const settlement = SETTLEMENT_MIDDLEWARE_URL.replace(/\/$/, '');
-  const exchange = DBIS_EXCHANGE_URL.replace(/\/$/, '');
-
   const refresh = useCallback(async () => {
     setLoading(true);
     setError(null);
     try {
       const [h, o, m2, mon, ms] = await Promise.all([
-        fetch(`${settlement}/api/v1/settlement/health`).then((r) => r.json()),
-        fetch(`${settlement}/api/v1/settlement/office`).then((r) => r.json()),
-        fetch(`${settlement}/api/v1/settlement/tokens/m2`).then((r) => r.json()),
-        fetch(`${exchange}/api/v1/exchange/swap/monitor?limit=10`).then((r) => r.json()),
-        loadMoneySupply(settlement),
+        fetch(settlementApi('/health')).then((r) => r.json()),
+        fetch(settlementApi('/office')).then((r) => r.json()),
+        fetch(settlementApi('/tokens/m2')).then((r) => r.json()),
+        fetch(exchangeApi('/swap/monitor?limit=10')).then((r) => r.json()),
+        loadMoneySupply(),
       ]);
       setHealth(h);
       setOffice(o);
@@ -58,7 +55,7 @@ export function useCentralBank() {
     } finally {
       setLoading(false);
     }
-  }, [settlement, exchange]);
+  }, []);
 
   useEffect(() => {
     refresh();
diff --git a/frontend-dapp/src/features/office24/useOffice24.ts b/frontend-dapp/src/features/office24/useOffice24.ts
index b99ee72..4d2049b 100644
--- a/frontend-dapp/src/features/office24/useOffice24.ts
+++ b/frontend-dapp/src/features/office24/useOffice24.ts
@@ -1,5 +1,5 @@
 import { useCallback, useEffect, useState } from 'react';
-import { DBIS_EXCHANGE_URL, SETTLEMENT_MIDDLEWARE_URL, type DexToken } from '../../config/dex';
+import { exchangeApi, settlementApi, type DexToken } from '../../config/dex';
 import type { MoneySupply } from '../central-bank/useCentralBank';
 
 export type M2Token = DexToken & {
@@ -17,19 +17,14 @@ export function useOffice24() {
   const [moneySupply, setMoneySupply] = useState<MoneySupply | null>(null);
   const [loading, setLoading] = useState(true);
 
-  const settlement = SETTLEMENT_MIDDLEWARE_URL.replace(/\/$/, '');
-  const exchange = DBIS_EXCHANGE_URL.replace(/\/$/, '');
-
   const refresh = useCallback(async () => {
     setLoading(true);
     try {
       const [o, t, h, ms] = await Promise.all([
-        fetch(`${settlement}/api/v1/settlement/office`).then((r) => r.json()),
-        fetch(`${settlement}/api/v1/settlement/tokens/m2`).then((r) => r.json()),
-        fetch(`${exchange}/api/v1/exchange/health`).then((r) => r.json()),
-        fetch(`${settlement}/api/v1/settlement/money-supply/public`).then((r) =>
-          r.ok ? r.json() : null,
-        ),
+        fetch(settlementApi('/office')).then((r) => r.json()),
+        fetch(settlementApi('/tokens/m2')).then((r) => r.json()),
+        fetch(exchangeApi('/health')).then((r) => r.json()),
+        fetch(settlementApi('/money-supply/public')).then((r) => (r.ok ? r.json() : null)),
       ]);
       setOffice(o);
       setTokens(Array.isArray(t.tokens) ? t.tokens : []);
@@ -38,7 +33,7 @@ export function useOffice24() {
     } finally {
       setLoading(false);
     }
-  }, [settlement, exchange]);
+  }, []);
 
   useEffect(() => {
     refresh();
diff --git a/frontend-dapp/src/features/swap/useDbisSwap.ts b/frontend-dapp/src/features/swap/useDbisSwap.ts
index 7075df2..52ea436 100644
--- a/frontend-dapp/src/features/swap/useDbisSwap.ts
+++ b/frontend-dapp/src/features/swap/useDbisSwap.ts
@@ -1,7 +1,7 @@
 import { useCallback, useEffect, useState } from 'react';
 import { useAccount, useSendTransaction } from 'wagmi';
 import {
-  DBIS_EXCHANGE_URL,
+  exchangeApi,
   DEFAULT_TOKENS,
   fetchExchangeTokens,
   parseAmountToWei,
@@ -37,8 +37,6 @@ export function useDbisSwap() {
   const [loadAmount, setLoadAmount] = useState('');
   const [lastSettlement, setLastSettlement] = useState<Record<string, unknown> | null>(null);
 
-  const baseUrl = DBIS_EXCHANGE_URL.replace(/\/$/, '');
-
   useEffect(() => {
     fetchExchangeTokens().then((list) => {
       setTokens(list);
@@ -51,12 +49,12 @@ export function useDbisSwap() {
     if (!address) return;
     try {
       const q = new URLSearchParams({ wallet: address });
-      const res = await fetch(`${baseUrl}/api/v1/exchange/ledgers?${q}`);
+      const res = await fetch(`${exchangeApi('/ledgers')}?${q}`);
       if (res.ok) setLedger(await res.json());
     } catch {
       /* optional */
     }
-  }, [address, baseUrl]);
+  }, [address]);
 
   const fetchQuote = useCallback(async () => {
     if (!amountIn) return;
@@ -69,7 +67,7 @@ export function useDbisSwap() {
         tokenOut: tokenOut.address,
         amountIn: wei,
       });
-      const res = await fetch(`${baseUrl}/api/v1/exchange/quote?${q}`);
+      const res = await fetch(`${exchangeApi('/quote')}?${q}`);
       if (!res.ok) throw new Error(await res.text());
       const quote = await res.json();
       setPlan({ amountOut: quote.amountOut ?? quote.expectedOutput });
@@ -78,7 +76,7 @@ export function useDbisSwap() {
     } finally {
       setLoading(false);
     }
-  }, [amountIn, tokenIn, tokenOut, baseUrl]);
+  }, [amountIn, tokenIn, tokenOut]);
 
   const fetchPlan = useCallback(async () => {
     if (!amountIn || !address) return;
@@ -86,7 +84,7 @@ export function useDbisSwap() {
     setError(null);
     try {
       const wei = parseAmountToWei(amountIn, tokenIn.decimals);
-      const res = await fetch(`${baseUrl}/api/v1/exchange/execute-plan`, {
+      const res = await fetch(exchangeApi('/execute-plan'), {
         method: 'POST',
         headers: { 'Content-Type': 'application/json' },
         body: JSON.stringify({
@@ -105,12 +103,12 @@ export function useDbisSwap() {
     } finally {
       setLoading(false);
     }
-  }, [amountIn, tokenIn, tokenOut, address, slippageBps, baseUrl]);
+  }, [amountIn, tokenIn, tokenOut, address, slippageBps]);
 
   const settleSwap = useCallback(
     async (hash: string) => {
       try {
-        const res = await fetch(`${baseUrl}/api/v1/exchange/swap/settle`, {
+        const res = await fetch(exchangeApi('/swap/settle'), {
           method: 'POST',
           headers: { 'Content-Type': 'application/json' },
           body: JSON.stringify({
@@ -127,7 +125,7 @@ export function useDbisSwap() {
         /* optional M2 audit */
       }
     },
-    [baseUrl, amountIn, address, tokenIn, tokenOut],
+    [amountIn, address, tokenIn, tokenOut],
   );
 
   const executeSwap = useCallback(async () => {
@@ -143,7 +141,7 @@ export function useDbisSwap() {
         data: plan.execution.encodedCalldata as `0x${string}`,
       });
       setTxHash(hash);
-      await fetch(`${baseUrl}/api/v1/exchange/swap/record`, {
+      await fetch(exchangeApi('/swap/record'), {
         method: 'POST',
         headers: { 'Content-Type': 'application/json' },
         body: JSON.stringify({
@@ -162,14 +160,14 @@ export function useDbisSwap() {
     } finally {
       setLoading(false);
     }
-  }, [plan, address, sendTransactionAsync, fetchPlan, tokenIn, tokenOut, amountIn, baseUrl, settleSwap]);
+  }, [plan, address, sendTransactionAsync, fetchPlan, tokenIn, tokenOut, amountIn, settleSwap]);
 
   const loadM2Token = useCallback(async () => {
     if (!address || !loadAmount) return;
     setLoading(true);
     setError(null);
     try {
-      const res = await fetch(`${baseUrl}/api/v1/exchange/token-load`, {
+      const res = await fetch(exchangeApi('/token-load'), {
         method: 'POST',
         headers: { 'Content-Type': 'application/json' },
         body: JSON.stringify({
@@ -191,14 +189,14 @@ export function useDbisSwap() {
     } finally {
       setLoading(false);
     }
-  }, [address, loadAmount, tokenOut, baseUrl, loadLedgers]);
+  }, [address, loadAmount, tokenOut, loadLedgers]);
 
   const internalTransfer = useCallback(async () => {
     if (!address || !transferTo || !transferAmount) return;
     setLoading(true);
     setError(null);
     try {
-      const res = await fetch(`${baseUrl}/api/v1/exchange/transfer/internal`, {
+      const res = await fetch(exchangeApi('/transfer/internal'), {
         method: 'POST',
         headers: { 'Content-Type': 'application/json' },
         body: JSON.stringify({
@@ -218,14 +216,14 @@ export function useDbisSwap() {
     } finally {
       setLoading(false);
     }
-  }, [address, transferTo, transferAmount, tokenIn, baseUrl]);
+  }, [address, transferTo, transferAmount, tokenIn]);
 
   const externalTransfer = useCallback(async () => {
     if (!address || !transferTo || !transferAmount || !externalIban) return;
     setLoading(true);
     setError(null);
     try {
-      const res = await fetch(`${baseUrl}/api/v1/exchange/transfer/external`, {
+      const res = await fetch(exchangeApi('/transfer/external'), {
         method: 'POST',
         headers: { 'Content-Type': 'application/json' },
         body: JSON.stringify({
@@ -246,16 +244,16 @@ export function useDbisSwap() {
     } finally {
       setLoading(false);
     }
-  }, [address, transferTo, transferAmount, externalIban, tokenIn, baseUrl]);
+  }, [address, transferTo, transferAmount, externalIban, tokenIn]);
 
   const loadMonitor = useCallback(async () => {
     try {
-      const res = await fetch(`${baseUrl}/api/v1/exchange/swap/monitor?limit=20`);
+      const res = await fetch(`${exchangeApi('/swap/monitor')}?limit=20`);
       if (res.ok) setMonitor(await res.json());
     } catch {
       /* optional */
     }
-  }, [baseUrl]);
+  }, []);
 
   return {
     address,