diff --git a/packages/thirdweb/src/utils/domain.test.ts b/packages/thirdweb/src/utils/domain.test.ts
index 8c22e32f024..21ad80b1339 100644
--- a/packages/thirdweb/src/utils/domain.test.ts
+++ b/packages/thirdweb/src/utils/domain.test.ts
@@ -18,6 +18,7 @@ describe("Thirdweb Domains", () => {
     rpc: "rpc.thirdweb.com",
     social: "social.thirdweb.com",
     storage: "storage.thirdweb.com",
+    api: "api.thirdweb.com",
   };
 
   beforeEach(() => {
diff --git a/packages/thirdweb/src/utils/domains.ts b/packages/thirdweb/src/utils/domains.ts
index 9e345046ee9..d39a840e15e 100644
--- a/packages/thirdweb/src/utils/domains.ts
+++ b/packages/thirdweb/src/utils/domains.ts
@@ -14,6 +14,11 @@ type DomainOverrides = {
    * @default "embedded-wallet.thirdweb.com"
    */
   inAppWallet?: string;
+  /**
+   * The base URL for the API server.
+   * @default "api.thirdweb.com"
+   */
+  api?: string;
   /**
    * The base URL for the payment server.
    * @default "pay.thirdweb.com"
@@ -54,6 +59,7 @@ type DomainOverrides = {
 export const DEFAULT_RPC_URL = "rpc.thirdweb.com";
 const DEFAULT_SOCIAL_URL = "social.thirdweb.com";
 const DEFAULT_IN_APP_WALLET_URL = "embedded-wallet.thirdweb.com";
+const DEFAULT_API_URL = "api.thirdweb.com";
 const DEFAULT_PAY_URL = "pay.thirdweb.com";
 const DEFAULT_STORAGE_URL = "storage.thirdweb.com";
 const DEFAULT_BUNDLER_URL = "bundler.thirdweb.com";
@@ -64,6 +70,7 @@ const DEFAULT_BRIDGE_URL = "bridge.thirdweb.com";
 
 let domains: { [k in keyof DomainOverrides]-?: string } = {
   analytics: DEFAULT_ANALYTICS_URL,
+  api: DEFAULT_API_URL,
   bridge: DEFAULT_BRIDGE_URL,
   bundler: DEFAULT_BUNDLER_URL,
   engineCloud: DEFAULT_ENGINE_CLOUD_URL,
@@ -78,6 +85,7 @@ let domains: { [k in keyof DomainOverrides]-?: string } = {
 export const setThirdwebDomains = (DomainOverrides: DomainOverrides) => {
   domains = {
     analytics: DomainOverrides.analytics ?? DEFAULT_ANALYTICS_URL,
+    api: DomainOverrides.api ?? DEFAULT_API_URL,
     bridge: DomainOverrides.bridge ?? DEFAULT_BRIDGE_URL,
     bundler: DomainOverrides.bundler ?? DEFAULT_BUNDLER_URL,
     engineCloud: DomainOverrides.engineCloud ?? DEFAULT_ENGINE_CLOUD_URL,
diff --git a/packages/thirdweb/src/wallets/in-app/web/lib/auth/otp.ts b/packages/thirdweb/src/wallets/in-app/web/lib/auth/otp.ts
index b14fec04aca..4626ff47f9d 100644
--- a/packages/thirdweb/src/wallets/in-app/web/lib/auth/otp.ts
+++ b/packages/thirdweb/src/wallets/in-app/web/lib/auth/otp.ts
@@ -1,9 +1,7 @@
 import type { ThirdwebClient } from "../../../../../client/client.js";
+import { getThirdwebBaseUrl } from "../../../../../utils/domains.js";
 import { stringify } from "../../../../../utils/json.js";
-import {
-  getLoginCallbackUrl,
-  getLoginUrl,
-} from "../../../core/authentication/getLoginPath.js";
+import { getLoginCallbackUrl } from "../../../core/authentication/getLoginPath.js";
 import type {
   AuthStoredTokenWithCookieReturnType,
   MultiStepAuthArgsType,
@@ -16,7 +14,7 @@ import type { Ecosystem } from "../../../core/wallet/types.js";
  */
 export const sendOtp = async (args: PreAuthArgsType): Promise<void> => {
   const { client, ecosystem } = args;
-  const url = getLoginUrl({ authOption: args.strategy, client, ecosystem });
+  const url = `${getThirdwebBaseUrl("api")}/v1/auth/initiate`;
 
   const headers: Record<string, string> = {
     "Content-Type": "application/json",
@@ -35,10 +33,12 @@ export const sendOtp = async (args: PreAuthArgsType): Promise<void> => {
     switch (args.strategy) {
       case "email":
         return {
+          method: "email",
           email: args.email,
         };
       case "phone":
         return {
+          method: "sms",
           phone: args.phoneNumber,
         };
     }
@@ -54,7 +54,7 @@ export const sendOtp = async (args: PreAuthArgsType): Promise<void> => {
     throw new Error("Failed to send verification code");
   }
 
-  return await response.json();
+  return;
 };
 
 /**