diff --git a/packages/api-client/src/internal/base-api.ts b/packages/api-client/src/internal/base-api.ts
index 934d1a53..bd53fb39 100644
--- a/packages/api-client/src/internal/base-api.ts
+++ b/packages/api-client/src/internal/base-api.ts
@@ -1,22 +1,30 @@
 import { CobaltResponseType, type CobaltResponse } from "../types/response";
 import { CobaltReachabilityError } from "../types/errors";
 import type { CobaltRequest } from "../types/request";
+import { CobaltAPIClient } from "../types/interface";
 
-export default class BaseCobaltAPI {
-    #baseURL: string;
+export default class CobaltAPI implements CobaltAPIClient {
+    #baseURL: string | undefined;
 
-    constructor(baseURL: string) {
+    getBaseURL() {
+        return this.#baseURL;
+    }
+
+    setBaseURL(baseURL: string) {
         const url = new URL(baseURL);
 
         if (baseURL !== url.origin && baseURL !== `${url.origin}/`) {
             throw new Error('Invalid cobalt instance URL');
         }
 
-        this.#baseURL = url.origin;
+        return this.#baseURL = url.origin;
     }
 
     async request(data: CobaltRequest, headers?: Record<string, string>) {
-        const response: CobaltResponse = await fetch(this.#baseURL, {
+        const baseURL = this.getBaseURL();
+        if (!baseURL) throw "baseURL is undefined";
+
+        const response: CobaltResponse = await fetch(baseURL, {
             method: 'POST',
             redirect: 'manual',
             signal: AbortSignal.timeout(10000),
diff --git a/packages/api-client/src/turnstile-api.ts b/packages/api-client/src/turnstile-api.ts
index 0792c276..e52c97e1 100644
--- a/packages/api-client/src/turnstile-api.ts
+++ b/packages/api-client/src/turnstile-api.ts
@@ -1,23 +1,30 @@
 import CobaltSessionHandler from "./internal/session";
-import BaseCobaltAPI from "./internal/base-api";
+import CobaltAPI from "./internal/base-api";
 import { CobaltRequest } from "./types/request";
 import { CobaltAuthError } from "./types/errors";
-import { CobaltAPIClient } from "./types/interface";
 import type { TurnstileObject } from "turnstile-types";
 
-export default class TurnstileCobaltAPI extends BaseCobaltAPI implements CobaltAPIClient {
+export class TurnstileCobaltAPI extends CobaltAPI {
     #session: CobaltSessionHandler;
     #instanceHasTurnstile = true;
 
-    constructor(baseURL: string, turnstile: TurnstileObject) {
-        super(baseURL);
-        this.#session = new CobaltSessionHandler(baseURL, turnstile);
+    constructor(turnstile: TurnstileObject) {
+        super();
+        this.#session = new CobaltSessionHandler(this, turnstile);
     }
 
     needsSession() {
         return this.#instanceHasTurnstile && !this.#session.hasSession();
     }
 
+    setBaseURL(baseURL: string): string {
+        if (this.#session && super.getBaseURL() !== super.setBaseURL(baseURL)) {
+            this.#session.reset();
+        }
+
+        return super.getBaseURL()!;
+    }
+
     async request(data: CobaltRequest) {
         const sessionOrError = await this.#session.getSession();
         const headers: Record<string, string> = {};
diff --git a/packages/api-client/src/types/interface.ts b/packages/api-client/src/types/interface.ts
index 8bea525c..5323c47d 100644
--- a/packages/api-client/src/types/interface.ts
+++ b/packages/api-client/src/types/interface.ts
@@ -3,4 +3,6 @@ import { CobaltResponse } from "./response";
 
 export interface CobaltAPIClient {
     request(data: CobaltRequest): Promise<CobaltResponse>;
+    getBaseURL(): string | undefined;
+    setBaseURL(baseURL: string): string;
 }
diff --git a/packages/api-client/src/unauthenticated-api.ts b/packages/api-client/src/unauthenticated-api.ts
index 3fa5dee1..58f75ce5 100644
--- a/packages/api-client/src/unauthenticated-api.ts
+++ b/packages/api-client/src/unauthenticated-api.ts
@@ -1,8 +1,8 @@
-import BaseCobaltAPI from "./internal/base-api";
+import CobaltAPI from "./internal/base-api";
 import { CobaltRequest } from "./types/request";
 import { CobaltAPIClient } from "./types/interface";
 
-export default class UnauthenticatedCobaltAPI extends BaseCobaltAPI implements CobaltAPIClient {
+export class UnauthenticatedCobaltAPI extends CobaltAPI implements CobaltAPIClient {
     async request(data: CobaltRequest) {
         return super.request(data, {});
     }