diff --git a/tests/e2e/buildTransaction.test.ts b/tests/e2e/buildTransaction.test.ts
index 45c8f6a6a..787c8da00 100644
--- a/tests/e2e/buildTransaction.test.ts
+++ b/tests/e2e/buildTransaction.test.ts
@@ -3,7 +3,7 @@ import { mockSimulateTx } from "./mock/helpers";
 
 test.describe("Build Transaction Page", () => {
   test.beforeEach(async ({ page }) => {
-    await page.goto("http://localhost:3000/transaction/build");
+    await page.goto("/transaction/build");
   });
 
   test("Loads", async ({ page }) => {
diff --git a/tests/e2e/createAccountPage.test.ts b/tests/e2e/createAccountPage.test.ts
index d041c3427..f0efdd9a3 100644
--- a/tests/e2e/createAccountPage.test.ts
+++ b/tests/e2e/createAccountPage.test.ts
@@ -2,7 +2,7 @@ import { test, expect } from "@playwright/test";
 
 test.describe("Create Account Page", () => {
   test.beforeEach(async ({ page }) => {
-    await page.goto("http://localhost:3000/account/create");
+    await page.goto("/account/create");
   });
 
   test("Loads", async ({ page }) => {
diff --git a/tests/e2e/createMuxedAccountPage.test.ts b/tests/e2e/createMuxedAccountPage.test.ts
index c013716d9..73890ec76 100644
--- a/tests/e2e/createMuxedAccountPage.test.ts
+++ b/tests/e2e/createMuxedAccountPage.test.ts
@@ -4,7 +4,7 @@ import { Account, MuxedAccount } from "@stellar/stellar-sdk";
 
 test.describe("Create Muxed Account Page", () => {
   test.beforeEach(async ({ page }) => {
-    await page.goto("http://localhost:3000/account/muxed-create");
+    await page.goto("/account/muxed-create");
   });
 
   test("Loads", async ({ page }) => {
diff --git a/tests/e2e/diffXdrsPage.test.ts b/tests/e2e/diffXdrsPage.test.ts
index 0085e590c..1f737b301 100644
--- a/tests/e2e/diffXdrsPage.test.ts
+++ b/tests/e2e/diffXdrsPage.test.ts
@@ -2,7 +2,7 @@ import { test, expect } from "@playwright/test";
 
 test.describe("Diff XDRs Page", () => {
   test.beforeEach(async ({ page }) => {
-    await page.goto("http://localhost:3000/xdr/diff");
+    await page.goto("/xdr/diff");
   });
 
   test("Loads", async ({ page }) => {
diff --git a/tests/e2e/endpointsPage.test.ts b/tests/e2e/endpointsPage.test.ts
index b543746a0..34dac954e 100644
--- a/tests/e2e/endpointsPage.test.ts
+++ b/tests/e2e/endpointsPage.test.ts
@@ -1,8 +1,10 @@
 import { test, expect } from "@playwright/test";
 
+const BASE_URL = `http://localhost:${process.env.PORT || 3000}`;
+
 test.describe("API Explorer page", () => {
   test.beforeEach(async ({ page }) => {
-    await page.goto("http://localhost:3000/endpoints");
+    await page.goto("/endpoints");
   });
 
   test("Loads", async ({ page }) => {
@@ -78,7 +80,7 @@ test.describe("API Explorer page", () => {
 
     test("Dropdown shows correct links on page load", async ({ page }) => {
       await page.goto(
-        "http://localhost:3000/endpoints/horizon/accounts/single",
+        `${BASE_URL}/endpoints/horizon/accounts/single`,
       );
       const sidebar = page.getByTestId("sidebar-links");
 
@@ -111,7 +113,7 @@ test.describe("API Explorer page", () => {
 
   test.describe("All Accounts", () => {
     test.beforeEach(async ({ page }) => {
-      await page.goto("http://localhost:3000/endpoints/accounts");
+      await page.goto("/endpoints/accounts");
     });
 
     test("Page loads with correct title and view docs link", async ({
@@ -158,7 +160,7 @@ test.describe("API Explorer page", () => {
   test.describe("Effects for Account", () => {
     test.beforeEach(async ({ page }) => {
       await page.goto(
-        "http://localhost:3000/endpoints/horizon/effects/account",
+        `${BASE_URL}/endpoints/horizon/effects/account`,
       );
     });
 
@@ -213,7 +215,7 @@ test.describe("API Explorer page", () => {
 
   test.describe("[RPC Methods] getLedgerEntries", () => {
     test.beforeEach(async ({ page }) => {
-      await page.goto("http://localhost:3000/endpoints/rpc/get-ledger-entries");
+      await page.goto("/endpoints/rpc/get-ledger-entries");
       await page.waitForSelector("h1", { timeout: 5000 });
       await expect(page.locator("h1")).toHaveText("getLedgerEntries");
     });
@@ -298,7 +300,7 @@ test.describe("API Explorer page", () => {
 
   test.describe("[RPC Methods] getTransaction", () => {
     test.beforeEach(async ({ page }) => {
-      await page.goto("http://localhost:3000/endpoints/rpc/get-transaction");
+      await page.goto("/endpoints/rpc/get-transaction");
       await page.waitForSelector("h1", { timeout: 5000 });
       await expect(page.locator("h1")).toHaveText("getTransaction");
     });
diff --git a/tests/e2e/feeBumpPage.test.ts b/tests/e2e/feeBumpPage.test.ts
index fa6db0e32..4d5e1ebfa 100644
--- a/tests/e2e/feeBumpPage.test.ts
+++ b/tests/e2e/feeBumpPage.test.ts
@@ -2,7 +2,7 @@ import { test, expect } from "@playwright/test";
 
 test.describe("Fee Bump Page", () => {
   test.beforeEach(async ({ page }) => {
-    await page.goto("http://localhost:3000/transaction/fee-bump");
+    await page.goto("/transaction/fee-bump");
   });
 
   test("Loads", async ({ page }) => {
diff --git a/tests/e2e/fundAccountPage.test.ts b/tests/e2e/fundAccountPage.test.ts
index d905061f8..56c6dcddf 100644
--- a/tests/e2e/fundAccountPage.test.ts
+++ b/tests/e2e/fundAccountPage.test.ts
@@ -17,7 +17,7 @@ const TEST_CONTRACT_ID_SHORT = shortenStellarAddress(TEST_CONTRACT_ID);
 
 test.describe("[futurenet/testnet] Fund Account Page", () => {
   test.beforeEach(async ({ page }) => {
-    await page.goto("http://localhost:3000/account/fund");
+    await page.goto("/account/fund");
   });
 
   test("Shows testnet network in the title by default", async ({ page }) => {
@@ -399,7 +399,7 @@ test.describe("[futurenet/testnet] Fund Account Page", () => {
 
 test.describe("[mainnet] Fund Account Page", () => {
   test.beforeEach(async ({ page }) => {
-    await page.goto("http://localhost:3000/account");
+    await page.goto("/account");
 
     // Switch to mainnet network
     await page.getByTestId("networkSelector-button").click();
@@ -426,7 +426,7 @@ test.describe("[mainnet] Fund Account Page", () => {
   test("I should see 'Switch Network' page on /account/fund", async ({
     page,
   }) => {
-    await page.goto("http://localhost:3000/account/fund");
+    await page.goto("/account/fund");
 
     await expect(page.locator("h1")).toHaveText(
       "Fund a Futurenet or Testnet network account or contract with XLM, USDC, and EURC",
diff --git a/tests/e2e/introductionPage.test.ts b/tests/e2e/introductionPage.test.ts
index 3ca96407b..794321fcc 100644
--- a/tests/e2e/introductionPage.test.ts
+++ b/tests/e2e/introductionPage.test.ts
@@ -4,7 +4,7 @@ test.describe("Introduction Page", () => {
   let sections: Locator;
 
   test.beforeEach(async ({ page }) => {
-    await page.goto("http://localhost:3000/");
+    await page.goto("/");
     sections = page.locator(".Lab__home__section");
   });
 
@@ -96,7 +96,7 @@ test.describe("Introduction Page", () => {
     // Using isolated browser context to make sure the network change won’t affect other tests.
     const context = await browser.newContext();
     const page = await context.newPage();
-    await page.goto("http://localhost:3000/");
+    await page.goto("/");
 
     const networksSection = page.locator(".Lab__home__section").nth(3);
 
diff --git a/tests/e2e/mock/localStorage.ts b/tests/e2e/mock/localStorage.ts
index 8cb0716cf..fbc93c637 100644
--- a/tests/e2e/mock/localStorage.ts
+++ b/tests/e2e/mock/localStorage.ts
@@ -1,3 +1,5 @@
+const BASE_URL = `http://localhost:${process.env.PORT || 3000}`;
+
 export const SAVED_ACCOUNT_1 =
   "GA46LGGOLXJY5OSX6N4LHV4MWDFXNGLK76I4NDNKKYAXRRSKI5AJGMXG";
 export const SAVED_ACCOUNT_1_SECRET =
@@ -177,7 +179,7 @@ const SAVED_TRANSACTIONS = [
     xdr: "AAAAAgAAAAB+TL0HLiAjanMRnyeqyhb8Iu+4d1g2dl1cwPi1UZAigwAAtwUABiLjAAAAGQAAAAEAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAEAAAAAAAAAGQAAAAAAAHUwAAAAAQAAAAAAAAABAAAABgAAAAEg/u86MzPrVcpNrsFUa84T82Kss8DLAE9ZMxLqhM22HwAAABAAAAABAAAAAgAAAA8AAAAHQ291bnRlcgAAAAASAAAAAAAAAAB+TL0HLiAjanMRnyeqyhb8Iu+4d1g2dl1cwPi1UZAigwAAAAEAAAAAAAAAAAAAAAAAAAAAAAAAAAAAtqEAAAAA",
     page: "build",
     shareableUrl:
-      "http://localhost:3000/transaction/build?$=network$id=testnet&label=Testnet&horizonUrl=https:////horizon-testnet.stellar.org&rpcUrl=https:////soroban-testnet.stellar.org&passphrase=Test%20SDF%20Network%20/;%20September%202015;&transaction$build$params$source_account=GB7EZPIHFYQCG2TTCGPSPKWKC36CF35YO5MDM5S5LTAPRNKRSARIHWGG&seq_num=1727208213184537;&operations@$operation_type=payment&params$destination=GAQ6LVQXNRX26CBIKCYGGGD6B4SNQACTJ46QMHS4Q5S52UHZW76XJJPJ&asset$code=&issuer=&type=native;&amount=5;&source_account=;;&isValid$params:true&operations:true;&soroban$operation$operation_type=extend_footprint_ttl&params$durability=persistent&contract=CAQP53Z2GMZ6WVOKJWXMCVDLZYJ7GYVMWPAMWACPLEZRF2UEZW3B636S&key_xdr=AAAAEAAAAAEAAAACAAAADwAAAAdDb3VudGVyAAAAABIAAAAAAAAAAH5MvQcuICNqcxGfJ6rKFvwi77h3WDZ2XVzA+LVRkCKD&extend_ttl_to=30000&resource_fee=46753;;",
+      `${BASE_URL}/transaction/build?$=network$id=testnet&label=Testnet&horizonUrl=https:////horizon-testnet.stellar.org&rpcUrl=https:////soroban-testnet.stellar.org&passphrase=Test%20SDF%20Network%20/;%20September%202015;&transaction$build$params$source_account=GB7EZPIHFYQCG2TTCGPSPKWKC36CF35YO5MDM5S5LTAPRNKRSARIHWGG&seq_num=1727208213184537;&operations@$operation_type=payment&params$destination=GAQ6LVQXNRX26CBIKCYGGGD6B4SNQACTJ46QMHS4Q5S52UHZW76XJJPJ&asset$code=&issuer=&type=native;&amount=5;&source_account=;;&isValid$params:true&operations:true;&soroban$operation$operation_type=extend_footprint_ttl&params$durability=persistent&contract=CAQP53Z2GMZ6WVOKJWXMCVDLZYJ7GYVMWPAMWACPLEZRF2UEZW3B636S&key_xdr=AAAAEAAAAAEAAAACAAAADwAAAAdDb3VudGVyAAAAABIAAAAAAAAAAH5MvQcuICNqcxGfJ6rKFvwi77h3WDZ2XVzA+LVRkCKD&extend_ttl_to=30000&resource_fee=46753;;`,
     params: {
       source_account:
         "GB7EZPIHFYQCG2TTCGPSPKWKC36CF35YO5MDM5S5LTAPRNKRSARIHWGG",
@@ -205,7 +207,7 @@ const SAVED_TRANSACTIONS = [
     name: "Extend TTL",
     xdr: "AAAAAgAAAAB+TL0HLiAjanMRnyeqyhb8Iu+4d1g2dl1cwPi1UZAigwAAtwUABiLjAAAAGQAAAAEAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAEAAAAAAAAAGQAAAAAAAHUwAAAAAQAAAAAAAAABAAAABgAAAAEg/u86MzPrVcpNrsFUa84T82Kss8DLAE9ZMxLqhM22HwAAABAAAAABAAAAAgAAAA8AAAAHQ291bnRlcgAAAAASAAAAAAAAAAB+TL0HLiAjanMRnyeqyhb8Iu+4d1g2dl1cwPi1UZAigwAAAAEAAAAAAAAAAAAAAAAAAAAAAAAAAAAAtqEAAAABUZAigwAAAEADYbntiznotYPblvJQ35DiGEpMTQU9jCYANxV18VVGV6zDFSjB+qK++dF656Pr4oMTpyBVvE15YSo6ITxR5DoE",
     page: "submit",
-    shareableUrl: "http://localhost:3000/transaction/submit?$=;;",
+    shareableUrl: `${BASE_URL}/transaction/submit?$=;;`,
   },
 ];
 
@@ -215,14 +217,14 @@ const SAVED_CONTRACT_IDS = [
     network: { id: "testnet", label: "Testnet" },
     name: "Contract 1",
     contractId: SAVED_CONTRACT_1,
-    shareableUrl: `http://localhost:3000/smart-contracts/contract-explorer?$=network$id=testnet&label=Testnet&horizonUrl=https:////horizon-testnet.stellar.org&rpcUrl=https:////soroban-testnet.stellar.org&passphrase=Test%20SDF%20Network%20/;%20September%202015;&smartContracts$explorer$contractId=${SAVED_CONTRACT_1};;`,
+    shareableUrl: `${BASE_URL}/smart-contracts/contract-explorer?$=network$id=testnet&label=Testnet&horizonUrl=https:////horizon-testnet.stellar.org&rpcUrl=https:////soroban-testnet.stellar.org&passphrase=Test%20SDF%20Network%20/;%20September%202015;&smartContracts$explorer$contractId=${SAVED_CONTRACT_1};;`,
   },
   {
     timestamp: 1746637746246,
     network: { id: "testnet", label: "Testnet" },
     name: "Contract 2",
     contractId: SAVED_CONTRACT_2,
-    shareableUrl: `http://localhost:3000/smart-contracts/contract-explorer?$=network$id=testnet&label=Testnet&horizonUrl=https:////horizon-testnet.stellar.org&rpcUrl=https:////soroban-testnet.stellar.org&passphrase=Test%20SDF%20Network%20/;%20September%202015;&smartContracts$explorer$contractId=${SAVED_CONTRACT_2};;`,
+    shareableUrl: `${BASE_URL}/smart-contracts/contract-explorer?$=network$id=testnet&label=Testnet&horizonUrl=https:////horizon-testnet.stellar.org&rpcUrl=https:////soroban-testnet.stellar.org&passphrase=Test%20SDF%20Network%20/;%20September%202015;&smartContracts$explorer$contractId=${SAVED_CONTRACT_2};;`,
   },
 ];
 
@@ -230,7 +232,7 @@ export const MOCK_LOCAL_STORAGE = {
   cookies: [],
   origins: [
     {
-      origin: "http://localhost:3000",
+      origin: BASE_URL,
       localStorage: [
         {
           name: "stellar_lab_saved_keypairs",
diff --git a/tests/e2e/networkLimitsPage.test.ts b/tests/e2e/networkLimitsPage.test.ts
index c5d12e582..e95978fc6 100644
--- a/tests/e2e/networkLimitsPage.test.ts
+++ b/tests/e2e/networkLimitsPage.test.ts
@@ -1,5 +1,7 @@
 import { test, expect, type Page } from "@playwright/test";
 
+const BASE_URL = `http://localhost:${process.env.PORT || 3000}`;
+
 import {
   formatLedgersToDays,
   formatLedgersToMonths,
@@ -13,7 +15,7 @@ import { MAINNET_LIMITS } from "@/constants/networkLimits";
 test.describe("Network Limits page on Mainnet", () => {
   test.beforeEach(async ({ page }) => {
     await page.goto(
-      "http://localhost:3000/network-limits?$=network$id=mainnet",
+      `${BASE_URL}/network-limits?$=network$id=mainnet`,
     );
   });
 
@@ -288,7 +290,7 @@ test.describe("Network Limits page on Mainnet", () => {
 
   test("Custom network shows warning message", async ({ page }) => {
     // Navigate directly to custom network
-    await page.goto("http://localhost:3000/network-limits?$=network$id=custom");
+    await page.goto("/network-limits?$=network$id=custom");
 
     // Verify we're on custom network
     await expect(page.getByTestId("networkSelector-button")).toHaveText(
diff --git a/tests/e2e/networkSelector.test.ts b/tests/e2e/networkSelector.test.ts
index 3decc94b1..535fe174d 100644
--- a/tests/e2e/networkSelector.test.ts
+++ b/tests/e2e/networkSelector.test.ts
@@ -1,8 +1,10 @@
 import { test, expect } from "@playwright/test";
 
+const BASE_URL = `http://localhost:${process.env.PORT || 3000}`;
+
 test.describe("Network selector", () => {
   test.beforeEach(async ({ page }) => {
-    await page.goto("http://localhost:3000/");
+    await page.goto("/");
   });
 
   test("Defaults to Testnet", async ({ page }) => {
@@ -171,7 +173,7 @@ test.describe("Network selector", () => {
 
   test("Selects network from search params", async ({ page }) => {
     await page.goto(
-      "http://localhost:3000/?$=network$id=futurenet&label=Futurenet&horizonUrl=https:////horizon-futurenet.stellar.org&rpcUrl=https:////rpc-futurenet.stellar.org&passphrase=Test%20SDF%20Future%20Network%20/;%20October%202022;;",
+      `${BASE_URL}/?$=network$id=futurenet&label=Futurenet&horizonUrl=https:////horizon-futurenet.stellar.org&rpcUrl=https:////rpc-futurenet.stellar.org&passphrase=Test%20SDF%20Future%20Network%20/;%20October%202022;;`,
     );
     await expect(page.getByTestId("networkSelector-button")).toHaveText(
       "Futurenet",
diff --git a/tests/e2e/parseMuxedAccountPage.test.ts b/tests/e2e/parseMuxedAccountPage.test.ts
index 6b02d25b9..2216bd640 100644
--- a/tests/e2e/parseMuxedAccountPage.test.ts
+++ b/tests/e2e/parseMuxedAccountPage.test.ts
@@ -2,7 +2,7 @@ import { test, expect } from "@playwright/test";
 
 test.describe("Parse Muxed Account Page", () => {
   test.beforeEach(async ({ page }) => {
-    await page.goto("http://localhost:3000/account/muxed-parse");
+    await page.goto("/account/muxed-parse");
   });
 
   test("Loads", async ({ page }) => {
diff --git a/tests/e2e/savedKeypairs.test.ts b/tests/e2e/savedKeypairs.test.ts
index 0e00d1932..73a551cea 100644
--- a/tests/e2e/savedKeypairs.test.ts
+++ b/tests/e2e/savedKeypairs.test.ts
@@ -12,7 +12,7 @@ import {
 
 test.describe("Saved Keypairs Page", () => {
   test.beforeEach(async ({ page }) => {
-    await page.goto("http://localhost:3000/account/saved");
+    await page.goto("/account/saved");
   });
 
   test("Loads", async ({ page }) => {
@@ -36,7 +36,7 @@ test.describe("Saved Keypairs Page", () => {
       });
       pageContext = await browserContext.newPage();
 
-      await pageContext.goto("http://localhost:3000/account/saved");
+      await pageContext.goto("/account/saved");
 
       // Account 1 response (funded)
       await pageContext.route(
diff --git a/tests/e2e/savedRequests.test.ts b/tests/e2e/savedRequests.test.ts
index 8678d26d9..becf628d8 100644
--- a/tests/e2e/savedRequests.test.ts
+++ b/tests/e2e/savedRequests.test.ts
@@ -3,7 +3,7 @@ import { MOCK_LOCAL_STORAGE } from "./mock/localStorage";
 
 test.describe("Saved Requests Page", () => {
   test.beforeEach(async ({ page }) => {
-    await page.goto("http://localhost:3000/endpoints/saved");
+    await page.goto("/endpoints/saved");
   });
 
   test("Loads", async ({ page }) => {
@@ -44,7 +44,7 @@ test.describe("Saved Requests Page", () => {
         storageState: MOCK_LOCAL_STORAGE,
       });
       pageContext = await browserContext.newPage();
-      await pageContext.goto("http://localhost:3000/endpoints/saved");
+      await pageContext.goto("/endpoints/saved");
 
       await pageContext.waitForSelector("h1", { timeout: 5000 });
       await expect(pageContext.locator("h1")).toHaveText("Saved Requests");
diff --git a/tests/e2e/savedSmartContractIds.test.ts b/tests/e2e/savedSmartContractIds.test.ts
index c8fee6408..b27c7a1e0 100644
--- a/tests/e2e/savedSmartContractIds.test.ts
+++ b/tests/e2e/savedSmartContractIds.test.ts
@@ -3,7 +3,7 @@ import { MOCK_LOCAL_STORAGE, SAVED_CONTRACT_1 } from "./mock/localStorage";
 
 test.describe("Saved Smart Contracts Page", () => {
   test.beforeEach(async ({ page }) => {
-    await page.goto("http://localhost:3000/smart-contracts/saved");
+    await page.goto("/smart-contracts/saved");
   });
 
   test("Loads", async ({ page }) => {
@@ -28,7 +28,7 @@ test.describe("Saved contract IDs", () => {
     });
     pageContext = await browserContext.newPage();
 
-    await pageContext.goto("http://localhost:3000/smart-contracts/saved");
+    await pageContext.goto("/smart-contracts/saved");
   });
 
   test("Loads", async () => {
diff --git a/tests/e2e/savedTransactions.test.ts b/tests/e2e/savedTransactions.test.ts
index 7f10b6499..c0991d92e 100644
--- a/tests/e2e/savedTransactions.test.ts
+++ b/tests/e2e/savedTransactions.test.ts
@@ -3,7 +3,7 @@ import { MOCK_LOCAL_STORAGE } from "./mock/localStorage";
 
 test.describe("Saved Transactions Page", () => {
   test.beforeEach(async ({ page }) => {
-    await page.goto("http://localhost:3000/transaction/saved");
+    await page.goto("/transaction/saved");
   });
 
   test("Loads", async ({ page }) => {
@@ -30,7 +30,7 @@ test.describe("Saved Transactions Page", () => {
         storageState: MOCK_LOCAL_STORAGE,
       });
       pageContext = await browserContext.newPage();
-      await pageContext.goto("http://localhost:3000/transaction/saved");
+      await pageContext.goto("/transaction/saved");
     });
 
     test("Loads", async () => {
diff --git a/tests/e2e/signTransactionPage.test.ts b/tests/e2e/signTransactionPage.test.ts
index b63f1c648..05bf0f7b1 100644
--- a/tests/e2e/signTransactionPage.test.ts
+++ b/tests/e2e/signTransactionPage.test.ts
@@ -2,7 +2,7 @@ import { test, expect } from "@playwright/test";
 
 test.describe("Sign Transaction Page", () => {
   test.beforeEach(async ({ page }) => {
-    await page.goto("http://localhost:3000/transaction/sign");
+    await page.goto("/transaction/sign");
   });
 
   test("Loads", async ({ page }) => {
diff --git a/tests/e2e/signerSelector.test.ts b/tests/e2e/signerSelector.test.ts
index 9cd584edf..d79c00011 100644
--- a/tests/e2e/signerSelector.test.ts
+++ b/tests/e2e/signerSelector.test.ts
@@ -1,4 +1,7 @@
 import { test, expect, Page, Browser } from "@playwright/test";
+
+const BASE_URL = `http://localhost:${process.env.PORT || 3000}`;
+
 import {
   MOCK_LOCAL_STORAGE,
   SAVED_ACCOUNT_1,
@@ -43,7 +46,7 @@ test.describe("Signer Selector", () => {
     test.beforeAll(async ({ browser }) => {
       pageContext = await setupPageContext(
         browser,
-        "http://localhost:3000/transaction/build",
+        `${BASE_URL}/transaction/build`,
       );
     });
 
@@ -77,7 +80,7 @@ test.describe("Signer Selector", () => {
     test.beforeAll(async ({ browser }) => {
       pageContext = await setupPageContext(
         browser,
-        "http://localhost:3000/transaction/sign",
+        `${BASE_URL}/transaction/sign`,
       );
     });
 
diff --git a/tests/e2e/simulateTransactionPage.test.ts b/tests/e2e/simulateTransactionPage.test.ts
index a14d33620..4d836dca2 100644
--- a/tests/e2e/simulateTransactionPage.test.ts
+++ b/tests/e2e/simulateTransactionPage.test.ts
@@ -2,7 +2,7 @@ import { test, expect } from "@playwright/test";
 
 test.describe("Simulate Transaction Page", () => {
   test.beforeEach(async ({ page }) => {
-    await page.goto("http://localhost:3000/transaction/simulate");
+    await page.goto("/transaction/simulate");
   });
 
   test("Loads", async ({ page }) => {
diff --git a/tests/e2e/smartContractsContractInfo.test.ts b/tests/e2e/smartContractsContractInfo.test.ts
index ef08fa4d2..01d6d8920 100644
--- a/tests/e2e/smartContractsContractInfo.test.ts
+++ b/tests/e2e/smartContractsContractInfo.test.ts
@@ -11,7 +11,7 @@ import { mockRpcRequest } from "./mock/helpers";
 
 test.describe("Smart Contracts: Contract Info", () => {
   test.beforeEach(async ({ page }) => {
-    await page.goto("http://localhost:3000/smart-contracts/contract-explorer");
+    await page.goto("/smart-contracts/contract-explorer");
   });
 
   test("Loads", async ({ page }) => {
diff --git a/tests/e2e/smartContractsStorage.test.ts b/tests/e2e/smartContractsStorage.test.ts
index 55ad18c1e..0a5e42bfb 100644
--- a/tests/e2e/smartContractsStorage.test.ts
+++ b/tests/e2e/smartContractsStorage.test.ts
@@ -36,7 +36,7 @@ const setupCommonMocks = async (page: Page) => {
  * Navigates to the Contract Storage tab with the mock contract loaded.
  */
 const navigateToContractStorage = async (page: Page) => {
-  await page.goto("http://localhost:3000/smart-contracts/contract-explorer");
+  await page.goto("/smart-contracts/contract-explorer");
   await expect(page.locator("h1")).toHaveText("Contract explorer");
 
   await page.getByLabel("Contract ID").fill(MOCK_CONTRACT_ID);
diff --git a/tests/e2e/smartContractsVersionHistory.test.ts b/tests/e2e/smartContractsVersionHistory.test.ts
index a4a7ec9a9..30eada1d9 100644
--- a/tests/e2e/smartContractsVersionHistory.test.ts
+++ b/tests/e2e/smartContractsVersionHistory.test.ts
@@ -40,7 +40,7 @@ test.describe("Smart Contracts: Version History", () => {
       },
     );
 
-    await page.goto("http://localhost:3000/smart-contracts/contract-explorer");
+    await page.goto("/smart-contracts/contract-explorer");
     await expect(page.locator("h1")).toHaveText("Contract explorer");
 
     // Load Contract Info
diff --git a/tests/e2e/submitTransactionPage.test.ts b/tests/e2e/submitTransactionPage.test.ts
index b9a99b645..9f7e17353 100644
--- a/tests/e2e/submitTransactionPage.test.ts
+++ b/tests/e2e/submitTransactionPage.test.ts
@@ -3,7 +3,7 @@ import { test, expect, Page } from "@playwright/test";
 
 test.describe("Submit Transaction Page", () => {
   test.beforeEach(async ({ page }) => {
-    await page.goto("http://localhost:3000/transaction/submit");
+    await page.goto("/transaction/submit");
   });
 
   test("Loads", async ({ page }) => {
diff --git a/tests/e2e/txDashClassicOperations.test.ts b/tests/e2e/txDashClassicOperations.test.ts
index 748aff11f..e359012dc 100644
--- a/tests/e2e/txDashClassicOperations.test.ts
+++ b/tests/e2e/txDashClassicOperations.test.ts
@@ -8,7 +8,7 @@ import { mockRpcRequest } from "./mock/helpers";
 
 test.describe("Transaction Dashboard - Classic Operations", () => {
   test.beforeEach(async ({ page }) => {
-    await page.goto("http://localhost:3000/transaction/dashboard");
+    await page.goto("/transaction/dashboard");
   });
 
   test("Displays single classic operation correctly", async ({ page }) => {
diff --git a/tests/e2e/txDashContracts.test.ts b/tests/e2e/txDashContracts.test.ts
index 4caed1f77..45aaa8b13 100644
--- a/tests/e2e/txDashContracts.test.ts
+++ b/tests/e2e/txDashContracts.test.ts
@@ -8,7 +8,7 @@ import { mockRpcRequest } from "./mock/helpers";
 test.describe("Transaction Dashboard: Contracts", () => {
   test.beforeEach(async ({ page }) => {
     // Load page
-    await page.goto("http://localhost:3000/transaction/dashboard");
+    await page.goto("/transaction/dashboard");
   });
 
   test("Contracts Summary", async ({ page }) => {
diff --git a/tests/e2e/txDashEvents.test.ts b/tests/e2e/txDashEvents.test.ts
index 3c132cbba..00f55faa7 100644
--- a/tests/e2e/txDashEvents.test.ts
+++ b/tests/e2e/txDashEvents.test.ts
@@ -8,7 +8,7 @@ import { mockRpcRequest } from "./mock/helpers";
 test.describe("Transaction Dashboard: Events", () => {
   test.beforeEach(async ({ page }) => {
     // Load page
-    await page.goto("http://localhost:3000/transaction/dashboard");
+    await page.goto("/transaction/dashboard");
   });
 
   test("Contract Events", async ({ page }) => {
diff --git a/tests/e2e/txDashFeeBreakdown.test.ts b/tests/e2e/txDashFeeBreakdown.test.ts
index 9c58889f3..77cbec534 100644
--- a/tests/e2e/txDashFeeBreakdown.test.ts
+++ b/tests/e2e/txDashFeeBreakdown.test.ts
@@ -4,7 +4,7 @@ import { mockRpcRequest } from "./mock/helpers";
 
 test.describe("Transaction Dashboard: Fee Breakdown", () => {
   test.beforeEach(async ({ page }) => {
-    await page.goto("http://localhost:3000/transaction/dashboard");
+    await page.goto("/transaction/dashboard");
   });
 
   test("Soroban transaction fees in XLM", async ({ page }) => {
diff --git a/tests/e2e/txDashInfo.test.ts b/tests/e2e/txDashInfo.test.ts
index feb9df4ca..3b2734b41 100644
--- a/tests/e2e/txDashInfo.test.ts
+++ b/tests/e2e/txDashInfo.test.ts
@@ -13,7 +13,7 @@ import { mockRpcRequest } from "./mock/helpers";
 
 test.describe("Transaction Dashboard", () => {
   test.beforeEach(async ({ page }) => {
-    await page.goto("http://localhost:3000/transaction/dashboard");
+    await page.goto("/transaction/dashboard");
   });
 
   test("Loads", async ({ page }) => {
diff --git a/tests/e2e/txDashResourceProfiler.test.ts b/tests/e2e/txDashResourceProfiler.test.ts
index 82b6a9150..4b27a964f 100644
--- a/tests/e2e/txDashResourceProfiler.test.ts
+++ b/tests/e2e/txDashResourceProfiler.test.ts
@@ -5,7 +5,7 @@ import { mockRpcRequest } from "./mock/helpers";
 test.describe("Transaction Dashboard: Resource Profiler", () => {
   test.beforeEach(async ({ page }) => {
     // Load page
-    await page.goto("http://localhost:3000/transaction/dashboard");
+    await page.goto("/transaction/dashboard");
   });
 
   test("Resources", async ({ page }) => {
diff --git a/tests/e2e/txDashSignatures.test.ts b/tests/e2e/txDashSignatures.test.ts
index b2ba23cb0..97a9a4c0e 100644
--- a/tests/e2e/txDashSignatures.test.ts
+++ b/tests/e2e/txDashSignatures.test.ts
@@ -9,7 +9,7 @@ import { shortenStellarAddress } from "@/helpers/shortenStellarAddress";
 
 test.describe("Transaction Dashboard: Signatures", () => {
   test.beforeEach(async ({ page }) => {
-    await page.goto("http://localhost:3000/transaction/dashboard");
+    await page.goto("/transaction/dashboard");
   });
 
   test("Soroban Transaction", async ({ page }) => {
diff --git a/tests/e2e/txDashStateChange.test.ts b/tests/e2e/txDashStateChange.test.ts
index d513c51d1..9a093d2b9 100644
--- a/tests/e2e/txDashStateChange.test.ts
+++ b/tests/e2e/txDashStateChange.test.ts
@@ -15,7 +15,7 @@ import {
 
 test.describe("Transaction Dashboard: State Change", () => {
   test.beforeEach(async ({ page }) => {
-    await page.goto("http://localhost:3000/transaction/dashboard");
+    await page.goto("/transaction/dashboard");
   });
 
   test.describe("KALE", () => {
diff --git a/tests/e2e/txDashTokenSummary.test.ts b/tests/e2e/txDashTokenSummary.test.ts
index 54136cefe..d4a767f1e 100644
--- a/tests/e2e/txDashTokenSummary.test.ts
+++ b/tests/e2e/txDashTokenSummary.test.ts
@@ -12,7 +12,7 @@ import { mockRpcRequest } from "./mock/helpers";
 test.describe("Transaction Dashboard: Token Summary", () => {
   test.beforeEach(async ({ page }) => {
     // Load page
-    await page.goto("http://localhost:3000/transaction/dashboard");
+    await page.goto("/transaction/dashboard");
   });
 
   test("SAC", async ({ page }) => {
diff --git a/tests/e2e/urlParams.test.ts b/tests/e2e/urlParams.test.ts
index 5ac0d8315..4d7e4f972 100644
--- a/tests/e2e/urlParams.test.ts
+++ b/tests/e2e/urlParams.test.ts
@@ -1,11 +1,13 @@
 import { test, expect } from "@playwright/test";
 
+const BASE_URL = `http://localhost:${process.env.PORT || 3000}`;
+
 // Test URL params render correctly on the UI
 test.describe("URL Params", () => {
   test.describe("View XDR", () => {
     test("XDR to JSON", async ({ page }) => {
       await page.goto(
-        "http://localhost:3000/xdr/view?$=network$id=testnet&label=Testnet&horizonUrl=https:////horizon-testnet.stellar.org&rpcUrl=https:////soroban-testnet.stellar.org&passphrase=Test%20SDF%20Network%20/;%20September%202015;&xdr$blob=AAAAAgAAAAAYheerp3FCahtW+3qusxzklJhfxMPQJERfPKY0lXnVjQAPQkAADQg//AAAAJAAAAAEAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAEAAAABAAAAABB90WssODNIgi6BHveqzxTRmIpvAFRyVNM+Hm2GVuCcAAAAAAAAAADGfZUR9pNoQGv+u6uGjdcwVF3zlb//mjyN53fUCn+iBGQAAABdIdugAAAAAAAAAAAKVedWNAAAAQA8JEfXRL2BLjcYHYX+6Dloij4OIR44zsu6hd9CSI//rQSgGulcIFmzY0sX4LIxdwCg//3UMOfXFEpGxIsDvaJEQuGVuCcAAAAQBYyy1VZl3iPQBI4hyv4e91Xv9KfM54jWWLVoh2HEjTWzPUsTlo6e2u//zGi+dcZxbNy//1MV9ipZuflVzLHPKlgs=;;",
+        `${BASE_URL}/xdr/view?$=network$id=testnet&label=Testnet&horizonUrl=https:////horizon-testnet.stellar.org&rpcUrl=https:////soroban-testnet.stellar.org&passphrase=Test%20SDF%20Network%20/;%20September%202015;&xdr$blob=AAAAAgAAAAAYheerp3FCahtW+3qusxzklJhfxMPQJERfPKY0lXnVjQAPQkAADQg//AAAAJAAAAAEAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAEAAAABAAAAABB90WssODNIgi6BHveqzxTRmIpvAFRyVNM+Hm2GVuCcAAAAAAAAAADGfZUR9pNoQGv+u6uGjdcwVF3zlb//mjyN53fUCn+iBGQAAABdIdugAAAAAAAAAAAKVedWNAAAAQA8JEfXRL2BLjcYHYX+6Dloij4OIR44zsu6hd9CSI//rQSgGulcIFmzY0sX4LIxdwCg//3UMOfXFEpGxIsDvaJEQuGVuCcAAAAQBYyy1VZl3iPQBI4hyv4e91Xv9KfM54jWWLVoh2HEjTWzPUsTlo6e2u//zGi+dcZxbNy//1MV9ipZuflVzLHPKlgs=;;`,
       );
 
       await expect(page.locator("h1")).toHaveText("View XDR");
@@ -22,7 +24,7 @@ test.describe("URL Params", () => {
 
     test("JSON to XDR", async ({ page }) => {
       await page.goto(
-        "http://localhost:3000/xdr/to?$=network$id=testnet&label=Testnet&horizonUrl=https:////horizon-testnet.stellar.org&rpcUrl=https:////soroban-testnet.stellar.org&passphrase=Test%20SDF%20Network%20/;%20September%202015;&xdr$jsonString=%7B%0A%20%20%22tx%22:%20%7B%0A%20%20%20%20%22tx%22:%20%7B%0A%20%20%20%20%20%20%22source_account%22:%20%22GAMILZ5LU5YUE2Q3K35XVLVTDTSJJGC7YTB5AJCEL46KMNEVPHKY24VT%22,%0A%20%20%20%20%20%20%22fee%22:%201000000,%0A%20%20%20%20%20%20%22seq_num%22:%203668241373200420,%0A%20%20%20%20%20%20%22cond%22:%20%7B%0A%20%20%20%20%20%20%20%20%22time%22:%20%7B%0A%20%20%20%20%20%20%20%20%20%20%22min_time%22:%200,%0A%20%20%20%20%20%20%20%20%20%20%22max_time%22:%200%0A%20%20%20%20%20%20%20%20%7D%0A%20%20%20%20%20%20%7D,%0A%20%20%20%20%20%20%22memo%22:%20%22none%22,%0A%20%20%20%20%20%20%22operations%22:%20%5B%0A%20%20%20%20%20%20%20%20%7B%0A%20%20%20%20%20%20%20%20%20%20%22source_account%22:%20%22GAIH3ULLFQ4DGSECF2AR555KZ4KNDGEKN4AFI4SU2M7B43MGK3QJZNSR%22,%0A%20%20%20%20%20%20%20%20%20%20%22body%22:%20%7B%0A%20%20%20%20%20%20%20%20%20%20%20%20%22create_account%22:%20%7B%0A%20%20%20%20%20%20%20%20%20%20%20%20%20%20%22destination%22:%20%22GDDH3FIR62JWQQDL7252XBUN24YFIXPTSW76NDZDPHO7KAU75CARTCAQ%22,%0A%20%20%20%20%20%20%20%20%20%20%20%20%20%20%22starting_balance%22:%20100000000000%0A%20%20%20%20%20%20%20%20%20%20%20%20%7D%0A%20%20%20%20%20%20%20%20%20%20%7D%0A%20%20%20%20%20%20%20%20%7D%0A%20%20%20%20%20%20%5D,%0A%20%20%20%20%20%20%22ext%22:%20%22v0%22%0A%20%20%20%20%7D,%0A%20%20%20%20%22signatures%22:%20%5B%0A%20%20%20%20%20%20%7B%0A%20%20%20%20%20%20%20%20%22hint%22:%20%229579d58d%22,%0A%20%20%20%20%20%20%20%20%22signature%22:%20%220f0911f5d12f604b8dc607617fba0e5a228f8388478e33b2eea177d09223fad04a01ae95c2059b3634b17e0b2317700a0ff750c39f5c51291b122c0ef689110b%22%0A%20%20%20%20%20%20%7D,%0A%20%20%20%20%20%20%7B%0A%20%20%20%20%20%20%20%20%22hint%22:%20%228656e09c%22,%0A%20%20%20%20%20%20%20%20%22signature%22:%20%221632cb555997788f401238872bf87bdd57bfd29f339e235962d5a21d871234d6ccf52c4e5a3a7b6bbfcc68be75c6716cdcbfd4c57d8a966e7e55732c73ca960b%22%0A%20%20%20%20%20%20%7D%0A%20%20%20%20%5D%0A%20%20%7D%0A%7D;;",
+        `${BASE_URL}/xdr/to?$=network$id=testnet&label=Testnet&horizonUrl=https:////horizon-testnet.stellar.org&rpcUrl=https:////soroban-testnet.stellar.org&passphrase=Test%20SDF%20Network%20/;%20September%202015;&xdr$jsonString=%7B%0A%20%20%22tx%22:%20%7B%0A%20%20%20%20%22tx%22:%20%7B%0A%20%20%20%20%20%20%22source_account%22:%20%22GAMILZ5LU5YUE2Q3K35XVLVTDTSJJGC7YTB5AJCEL46KMNEVPHKY24VT%22,%0A%20%20%20%20%20%20%22fee%22:%201000000,%0A%20%20%20%20%20%20%22seq_num%22:%203668241373200420,%0A%20%20%20%20%20%20%22cond%22:%20%7B%0A%20%20%20%20%20%20%20%20%22time%22:%20%7B%0A%20%20%20%20%20%20%20%20%20%20%22min_time%22:%200,%0A%20%20%20%20%20%20%20%20%20%20%22max_time%22:%200%0A%20%20%20%20%20%20%20%20%7D%0A%20%20%20%20%20%20%7D,%0A%20%20%20%20%20%20%22memo%22:%20%22none%22,%0A%20%20%20%20%20%20%22operations%22:%20%5B%0A%20%20%20%20%20%20%20%20%7B%0A%20%20%20%20%20%20%20%20%20%20%22source_account%22:%20%22GAIH3ULLFQ4DGSECF2AR555KZ4KNDGEKN4AFI4SU2M7B43MGK3QJZNSR%22,%0A%20%20%20%20%20%20%20%20%20%20%22body%22:%20%7B%0A%20%20%20%20%20%20%20%20%20%20%20%20%22create_account%22:%20%7B%0A%20%20%20%20%20%20%20%20%20%20%20%20%20%20%22destination%22:%20%22GDDH3FIR62JWQQDL7252XBUN24YFIXPTSW76NDZDPHO7KAU75CARTCAQ%22,%0A%20%20%20%20%20%20%20%20%20%20%20%20%20%20%22starting_balance%22:%20100000000000%0A%20%20%20%20%20%20%20%20%20%20%20%20%7D%0A%20%20%20%20%20%20%20%20%20%20%7D%0A%20%20%20%20%20%20%20%20%7D%0A%20%20%20%20%20%20%5D,%0A%20%20%20%20%20%20%22ext%22:%20%22v0%22%0A%20%20%20%20%7D,%0A%20%20%20%20%22signatures%22:%20%5B%0A%20%20%20%20%20%20%7B%0A%20%20%20%20%20%20%20%20%22hint%22:%20%229579d58d%22,%0A%20%20%20%20%20%20%20%20%22signature%22:%20%220f0911f5d12f604b8dc607617fba0e5a228f8388478e33b2eea177d09223fad04a01ae95c2059b3634b17e0b2317700a0ff750c39f5c51291b122c0ef689110b%22%0A%20%20%20%20%20%20%7D,%0A%20%20%20%20%20%20%7B%0A%20%20%20%20%20%20%20%20%22hint%22:%20%228656e09c%22,%0A%20%20%20%20%20%20%20%20%22signature%22:%20%221632cb555997788f401238872bf87bdd57bfd29f339e235962d5a21d871234d6ccf52c4e5a3a7b6bbfcc68be75c6716cdcbfd4c57d8a966e7e55732c73ca960b%22%0A%20%20%20%20%20%20%7D%0A%20%20%20%20%5D%0A%20%20%7D%0A%7D;;`,
       );
 
       await expect(page.locator("h1")).toHaveText("To XDR");
@@ -38,7 +40,7 @@ test.describe("URL Params", () => {
   test.describe("Transactions", () => {
     test("[Classic] Build Transaction", async ({ page }) => {
       await page.goto(
-        "http://localhost:3000/transaction/build?$=network$id=testnet&label=Testnet&horizonUrl=https:////horizon-testnet.stellar.org&rpcUrl=https:////soroban-testnet.stellar.org&passphrase=Test%20SDF%20Network%20/;%20September%202015;&transaction$build$classic$operations@$operation_type=create_account&params$destination=GC5TQ7TXKHGE5JQMZPYV5KBSQ67X6PYQVU5QN7JRGWCHRA227UFPZ6LD&starting_balance=3000;&source_account=;&$operation_type=payment&params$destination=GAJAIHPKNTJ362TAUWTU2S56B7PULRTMY456LUELK53USX43537IFMS3&asset$code=USDC&issuer=GBBD47IF6LWK7P7MDEVSCWR7DPUWV3NY3DTQEVFL4NAT4AQH3ZLLFLA5&type=credit_alphanum4;&amount=4000;&source_account=GA46LGGOLXJY5OSX6N4LHV4MWDFXNGLK76I4NDNKKYAXRRSKI5AJGMXG;;;&params$source_account=GA46LGGOLXJY5OSX6N4LHV4MWDFXNGLK76I4NDNKKYAXRRSKI5AJGMXG&fee=2000&seq_num=3668692344766465&cond$time$max_time=1733409768;;&memo$text=123;;&isValid$params:true&operations:true;;",
+        `${BASE_URL}/transaction/build?$=network$id=testnet&label=Testnet&horizonUrl=https:////horizon-testnet.stellar.org&rpcUrl=https:////soroban-testnet.stellar.org&passphrase=Test%20SDF%20Network%20/;%20September%202015;&transaction$build$classic$operations@$operation_type=create_account&params$destination=GC5TQ7TXKHGE5JQMZPYV5KBSQ67X6PYQVU5QN7JRGWCHRA227UFPZ6LD&starting_balance=3000;&source_account=;&$operation_type=payment&params$destination=GAJAIHPKNTJ362TAUWTU2S56B7PULRTMY456LUELK53USX43537IFMS3&asset$code=USDC&issuer=GBBD47IF6LWK7P7MDEVSCWR7DPUWV3NY3DTQEVFL4NAT4AQH3ZLLFLA5&type=credit_alphanum4;&amount=4000;&source_account=GA46LGGOLXJY5OSX6N4LHV4MWDFXNGLK76I4NDNKKYAXRRSKI5AJGMXG;;;&params$source_account=GA46LGGOLXJY5OSX6N4LHV4MWDFXNGLK76I4NDNKKYAXRRSKI5AJGMXG&fee=2000&seq_num=3668692344766465&cond$time$max_time=1733409768;;&memo$text=123;;&isValid$params:true&operations:true;;`,
       );
 
       await expect(page.locator("h1")).toHaveText("Build transaction");
@@ -113,7 +115,7 @@ test.describe("URL Params", () => {
 
     test("[Classic] Sign Transaction", async ({ page }) => {
       await page.goto(
-        "http://localhost:3000/transaction/sign?$=network$id=testnet&label=Testnet&horizonUrl=https:////horizon-testnet.stellar.org&rpcUrl=https:////soroban-testnet.stellar.org&passphrase=Test%20SDF%20Network%20/;%20September%202015;&transaction$sign$activeView=overview&importXdr=AAAAAgAAAAA55ZjOXdOOulfzeLPXjLDLdplq//5HGjapWAXjGSkdAkwAAD6AADQioAAAAAQAAAAEAAAAAAAAAAAAAAABnUbvoAAAAAQAAAAMxMjMAAAAAAgAAAAAAAAAAAAAAALs4fndRzE6mDMvxXqgyh79//PxCtOwb9MTWEeINa//Qr8AAAABvwjrAAAAAABAAAAADnlmM5d0466V//N4s9eMsMt2mWr//kcaNqlYBeMZKR0CTAAAAAQAAAAASBB3qbNO//amClp01Lvg//fRcZsxzvl0ItXd0lfm+7+ggAAAAFVU0RDAAAAAEI+fQXy7K+//7BkrIVo//G+lq7bjY5wJUq+NBPgIH3layAAAACVAvkAAAAAAAAAAAAA==;;",
+        `${BASE_URL}/transaction/sign?$=network$id=testnet&label=Testnet&horizonUrl=https:////horizon-testnet.stellar.org&rpcUrl=https:////soroban-testnet.stellar.org&passphrase=Test%20SDF%20Network%20/;%20September%202015;&transaction$sign$activeView=overview&importXdr=AAAAAgAAAAA55ZjOXdOOulfzeLPXjLDLdplq//5HGjapWAXjGSkdAkwAAD6AADQioAAAAAQAAAAEAAAAAAAAAAAAAAABnUbvoAAAAAQAAAAMxMjMAAAAAAgAAAAAAAAAAAAAAALs4fndRzE6mDMvxXqgyh79//PxCtOwb9MTWEeINa//Qr8AAAABvwjrAAAAAABAAAAADnlmM5d0466V//N4s9eMsMt2mWr//kcaNqlYBeMZKR0CTAAAAAQAAAAASBB3qbNO//amClp01Lvg//fRcZsxzvl0ItXd0lfm+7+ggAAAAFVU0RDAAAAAEI+fQXy7K+//7BkrIVo//G+lq7bjY5wJUq+NBPgIH3layAAAACVAvkAAAAAAAAAAAAA==;;`,
       );
 
       await expect(page.locator("h1")).toHaveText("Transaction overview");
@@ -131,7 +133,7 @@ test.describe("URL Params", () => {
 
     test("Simulate Transaction", async ({ page }) => {
       await page.goto(
-        "http://localhost:3000/transaction/simulate?$=network$id=testnet&label=Testnet&horizonUrl=https:////horizon-testnet.stellar.org&rpcUrl=https:////soroban-testnet.stellar.org&passphrase=Test%20SDF%20Network%20/;%20September%202015;&xdr$blob=AAAAAgAAAAA55ZjOXdOOulfzeLPXjLDLdplq//5HGjapWAXjGSkdAkwAAD6AADQioAAAAAQAAAAEAAAAAAAAAAAAAAABnUbvoAAAAAQAAAAMxMjMAAAAAAgAAAAAAAAAAAAAAALs4fndRzE6mDMvxXqgyh79//PxCtOwb9MTWEeINa//Qr8AAAABvwjrAAAAAABAAAAADnlmM5d0466V//N4s9eMsMt2mWr//kcaNqlYBeMZKR0CTAAAAAQAAAAASBB3qbNO//amClp01Lvg//fRcZsxzvl0ItXd0lfm+7+ggAAAAFVU0RDAAAAAEI+fQXy7K+//7BkrIVo//G+lq7bjY5wJUq+NBPgIH3layAAAACVAvkAAAAAAAAAAAAA==;;",
+        `${BASE_URL}/transaction/simulate?$=network$id=testnet&label=Testnet&horizonUrl=https:////horizon-testnet.stellar.org&rpcUrl=https:////soroban-testnet.stellar.org&passphrase=Test%20SDF%20Network%20/;%20September%202015;&xdr$blob=AAAAAgAAAAA55ZjOXdOOulfzeLPXjLDLdplq//5HGjapWAXjGSkdAkwAAD6AADQioAAAAAQAAAAEAAAAAAAAAAAAAAABnUbvoAAAAAQAAAAMxMjMAAAAAAgAAAAAAAAAAAAAAALs4fndRzE6mDMvxXqgyh79//PxCtOwb9MTWEeINa//Qr8AAAABvwjrAAAAAABAAAAADnlmM5d0466V//N4s9eMsMt2mWr//kcaNqlYBeMZKR0CTAAAAAQAAAAASBB3qbNO//amClp01Lvg//fRcZsxzvl0ItXd0lfm+7+ggAAAAFVU0RDAAAAAEI+fQXy7K+//7BkrIVo//G+lq7bjY5wJUq+NBPgIH3layAAAACVAvkAAAAAAAAAAAAA==;;`,
       );
 
       await expect(page.locator("h1")).toHaveText("Simulate transaction");
@@ -145,7 +147,7 @@ test.describe("URL Params", () => {
 
     test("[Classic] Submit Transaction", async ({ page }) => {
       await page.goto(
-        "http://localhost:3000/transaction/submit?$=network$id=testnet&label=Testnet&horizonUrl=https:////horizon-testnet.stellar.org&rpcUrl=https:////soroban-testnet.stellar.org&passphrase=Test%20SDF%20Network%20/;%20September%202015;&xdr$blob=AAAAAgAAAAA55ZjOXdOOulfzeLPXjLDLdplq//5HGjapWAXjGSkdAkwAAD6AADQioAAAAAQAAAAEAAAAAAAAAAAAAAABnUbvoAAAAAQAAAAMxMjMAAAAAAgAAAAAAAAAAAAAAALs4fndRzE6mDMvxXqgyh79//PxCtOwb9MTWEeINa//Qr8AAAABvwjrAAAAAABAAAAADnlmM5d0466V//N4s9eMsMt2mWr//kcaNqlYBeMZKR0CTAAAAAQAAAAASBB3qbNO//amClp01Lvg//fRcZsxzvl0ItXd0lfm+7+ggAAAAFVU0RDAAAAAEI+fQXy7K+//7BkrIVo//G+lq7bjY5wJUq+NBPgIH3layAAAACVAvkAAAAAAAAAAAAA==;;",
+        `${BASE_URL}/transaction/submit?$=network$id=testnet&label=Testnet&horizonUrl=https:////horizon-testnet.stellar.org&rpcUrl=https:////soroban-testnet.stellar.org&passphrase=Test%20SDF%20Network%20/;%20September%202015;&xdr$blob=AAAAAgAAAAA55ZjOXdOOulfzeLPXjLDLdplq//5HGjapWAXjGSkdAkwAAD6AADQioAAAAAQAAAAEAAAAAAAAAAAAAAABnUbvoAAAAAQAAAAMxMjMAAAAAAgAAAAAAAAAAAAAAALs4fndRzE6mDMvxXqgyh79//PxCtOwb9MTWEeINa//Qr8AAAABvwjrAAAAAABAAAAADnlmM5d0466V//N4s9eMsMt2mWr//kcaNqlYBeMZKR0CTAAAAAQAAAAASBB3qbNO//amClp01Lvg//fRcZsxzvl0ItXd0lfm+7+ggAAAAFVU0RDAAAAAEI+fQXy7K+//7BkrIVo//G+lq7bjY5wJUq+NBPgIH3layAAAACVAvkAAAAAAAAAAAAA==;;`,
       );
 
       await expect(page.locator("h1")).toHaveText("Submit transaction");
@@ -162,7 +164,7 @@ test.describe("URL Params", () => {
 
     test("[Soroban] Build Transaction", async ({ page }) => {
       await page.goto(
-        "http://localhost:3000/transaction/build?$=network$id=testnet&label=Testnet&horizonUrl=https:////horizon-testnet.stellar.org&rpcUrl=https:////soroban-testnet.stellar.org&passphrase=Test%20SDF%20Network%20/;%20September%202015;&transaction$build$classic$operations@$operation_type=payment&params$destination=GA46LGGOLXJY5OSX6N4LHV4MWDFXNGLK76I4NDNKKYAXRRSKI5AJGMXG&asset$code=&issuer=&type=native;&amount=5;&source_account=;;;&soroban$operation$operation_type=extend_footprint_ttl&params$contractDataLedgerKey=AAAABgAAAAEg/u86MzPrVcpNrsFUa84T82Kss8DLAE9ZMxLqhM22HwAAABAAAAABAAAAAgAAAA8AAAAHQ291bnRlcgAAAAASAAAAAAAAAAB+TL0HLiAjanMRnyeqyhb8Iu+4d1g2dl1cwPi1UZAigwAAAAE=&extend_ttl_to=20000&resource_fee=46753;;;&params$source_account=GB7EZPIHFYQCG2TTCGPSPKWKC36CF35YO5MDM5S5LTAPRNKRSARIHWGG&seq_num=1727208213184538&cond$time$min_time=1733409768;;&memo$text=100;;&isValid$params:true&operations:true;;",
+        `${BASE_URL}/transaction/build?$=network$id=testnet&label=Testnet&horizonUrl=https:////horizon-testnet.stellar.org&rpcUrl=https:////soroban-testnet.stellar.org&passphrase=Test%20SDF%20Network%20/;%20September%202015;&transaction$build$classic$operations@$operation_type=payment&params$destination=GA46LGGOLXJY5OSX6N4LHV4MWDFXNGLK76I4NDNKKYAXRRSKI5AJGMXG&asset$code=&issuer=&type=native;&amount=5;&source_account=;;;&soroban$operation$operation_type=extend_footprint_ttl&params$contractDataLedgerKey=AAAABgAAAAEg/u86MzPrVcpNrsFUa84T82Kss8DLAE9ZMxLqhM22HwAAABAAAAABAAAAAgAAAA8AAAAHQ291bnRlcgAAAAASAAAAAAAAAAB+TL0HLiAjanMRnyeqyhb8Iu+4d1g2dl1cwPi1UZAigwAAAAE=&extend_ttl_to=20000&resource_fee=46753;;;&params$source_account=GB7EZPIHFYQCG2TTCGPSPKWKC36CF35YO5MDM5S5LTAPRNKRSARIHWGG&seq_num=1727208213184538&cond$time$min_time=1733409768;;&memo$text=100;;&isValid$params:true&operations:true;;`,
       );
 
       await expect(page.locator("h1")).toHaveText("Build transaction");
@@ -206,7 +208,7 @@ test.describe("URL Params", () => {
 
     test("Fee Bump", async ({ page }) => {
       await page.goto(
-        "http://localhost:3000/transaction/fee-bump?$=network$id=testnet&label=Testnet&horizonUrl=https:////horizon-testnet.stellar.org&rpcUrl=https:////soroban-testnet.stellar.org&passphrase=Test%20SDF%20Network%20/;%20September%202015;&transaction$feeBump$source_account=GA46LGGOLXJY5OSX6N4LHV4MWDFXNGLK76I4NDNKKYAXRRSKI5AJGMXG&fee=2000&xdr=AAAAAgAAAAA55ZjOXdOOulfzeLPXjLDLdplq//5HGjapWAXjGSkdAkwAAD6AADQioAAAAAQAAAAEAAAAAAAAAAAAAAABnUbvoAAAAAQAAAAMxMjMAAAAAAgAAAAAAAAAAAAAAALs4fndRzE6mDMvxXqgyh79//PxCtOwb9MTWEeINa//Qr8AAAABvwjrAAAAAABAAAAADnlmM5d0466V//N4s9eMsMt2mWr//kcaNqlYBeMZKR0CTAAAAAQAAAAASBB3qbNO//amClp01Lvg//fRcZsxzvl0ItXd0lfm+7+ggAAAAFVU0RDAAAAAEI+fQXy7K+//7BkrIVo//G+lq7bjY5wJUq+NBPgIH3layAAAACVAvkAAAAAAAAAAAAA==;;",
+        `${BASE_URL}/transaction/fee-bump?$=network$id=testnet&label=Testnet&horizonUrl=https:////horizon-testnet.stellar.org&rpcUrl=https:////soroban-testnet.stellar.org&passphrase=Test%20SDF%20Network%20/;%20September%202015;&transaction$feeBump$source_account=GA46LGGOLXJY5OSX6N4LHV4MWDFXNGLK76I4NDNKKYAXRRSKI5AJGMXG&fee=2000&xdr=AAAAAgAAAAA55ZjOXdOOulfzeLPXjLDLdplq//5HGjapWAXjGSkdAkwAAD6AADQioAAAAAQAAAAEAAAAAAAAAAAAAAABnUbvoAAAAAQAAAAMxMjMAAAAAAgAAAAAAAAAAAAAAALs4fndRzE6mDMvxXqgyh79//PxCtOwb9MTWEeINa//Qr8AAAABvwjrAAAAAABAAAAADnlmM5d0466V//N4s9eMsMt2mWr//kcaNqlYBeMZKR0CTAAAAAQAAAAASBB3qbNO//amClp01Lvg//fRcZsxzvl0ItXd0lfm+7+ggAAAAFVU0RDAAAAAEI+fQXy7K+//7BkrIVo//G+lq7bjY5wJUq+NBPgIH3layAAAACVAvkAAAAAAAAAAAAA==;;`,
       );
 
       await expect(page.locator("h1")).toHaveText("Fee bump");
@@ -226,7 +228,7 @@ test.describe("URL Params", () => {
   test.describe("API Explorer", () => {
     test("RPC Methods: getTransactions", async ({ page }) => {
       await page.goto(
-        "http://localhost:3000/endpoints/rpc/get-transactions?$=network$id=testnet&label=Testnet&horizonUrl=https:////horizon-testnet.stellar.org&rpcUrl=https:////soroban-testnet.stellar.org&passphrase=Test%20SDF%20Network%20/;%20September%202015;&endpoints$params$startLedger=1316619&cursor=123123&limit=5&xdrFormat=json;;",
+        `${BASE_URL}/endpoints/rpc/get-transactions?$=network$id=testnet&label=Testnet&horizonUrl=https:////horizon-testnet.stellar.org&rpcUrl=https:////soroban-testnet.stellar.org&passphrase=Test%20SDF%20Network%20/;%20September%202015;&endpoints$params$startLedger=1316619&cursor=123123&limit=5&xdrFormat=json;;`,
       );
 
       await expect(page.locator("h1")).toHaveText("getTransactions");
@@ -243,7 +245,7 @@ test.describe("URL Params", () => {
 
     test("Horizon Endpoints: Payments for Account", async ({ page }) => {
       await page.goto(
-        "http://localhost:3000/endpoints/horizon/payments/account?$=network$id=testnet&label=Testnet&horizonUrl=https:////horizon-testnet.stellar.org&rpcUrl=https:////soroban-testnet.stellar.org&passphrase=Test%20SDF%20Network%20/;%20September%202015;&endpoints$params$account_id=GA46LGGOLXJY5OSX6N4LHV4MWDFXNGLK76I4NDNKKYAXRRSKI5AJGMXG&cursor=123123&limit=5&order=desc&include_failed=true;;",
+        `${BASE_URL}/endpoints/horizon/payments/account?$=network$id=testnet&label=Testnet&horizonUrl=https:////horizon-testnet.stellar.org&rpcUrl=https:////soroban-testnet.stellar.org&passphrase=Test%20SDF%20Network%20/;%20September%202015;&endpoints$params$account_id=GA46LGGOLXJY5OSX6N4LHV4MWDFXNGLK76I4NDNKKYAXRRSKI5AJGMXG&cursor=123123&limit=5&order=desc&include_failed=true;;`,
       );
 
       await expect(page.locator("h1")).toHaveText("Payments for account");
diff --git a/tests/e2e/viewJsonToXdrPage.test.ts b/tests/e2e/viewJsonToXdrPage.test.ts
index 2c788319b..06af23a20 100644
--- a/tests/e2e/viewJsonToXdrPage.test.ts
+++ b/tests/e2e/viewJsonToXdrPage.test.ts
@@ -2,7 +2,7 @@ import { test, expect } from "@playwright/test";
 
 test.describe("View JSON to XDR Page", () => {
   test.beforeEach(async ({ page }) => {
-    await page.goto("http://localhost:3000/xdr/to");
+    await page.goto("/xdr/to");
   });
 
   test("Loads", async ({ page }) => {
diff --git a/tests/e2e/viewXdrToJsonPage.test.ts b/tests/e2e/viewXdrToJsonPage.test.ts
index 762346beb..d1671ce4f 100644
--- a/tests/e2e/viewXdrToJsonPage.test.ts
+++ b/tests/e2e/viewXdrToJsonPage.test.ts
@@ -7,7 +7,7 @@ import {
 
 test.describe("View XDR to JSON Page", () => {
   test.beforeEach(async ({ page }) => {
-    await page.goto("http://localhost:3000/xdr/view");
+    await page.goto("/xdr/view");
   });
 
   test("Loads", async ({ page }) => {