diff --git a/README.md b/README.md
index b0a6ac61f..f30a132d3 100644
--- a/README.md
+++ b/README.md
@@ -251,11 +251,12 @@ petstore: {
 
 The `docusaurus-theme-openapi-docs` theme can be configured with the following options in `themeConfig.api`:
 
-| Name              | Type     | Default | Description                                                                                                                        |
-| ----------------- | -------- | ------- | ---------------------------------------------------------------------------------------------------------------------------------- |
-| `proxy`           | `string` | `null`  | _Optional:_ Site-wide proxy URL to prepend to base URL when performing API requests. Can be overridden per-spec via plugin config. |
-| `authPersistance` | `string` | `null`  | _Optional:_ Determines how auth credentials are persisted. Options: `"localStorage"`, `"sessionStorage"`, or `false` to disable.   |
-| `requestTimeout`  | `number` | `30000` | _Optional:_ Request timeout in milliseconds for API requests made from the browser. Defaults to 30 seconds.                        |
+| Name                 | Type     | Default         | Description                                                                                                                        |
+| -------------------- | -------- | --------------- | ---------------------------------------------------------------------------------------------------------------------------------- |
+| `proxy`              | `string` | `null`          | _Optional:_ Site-wide proxy URL to prepend to base URL when performing API requests. Can be overridden per-spec via plugin config. |
+| `authPersistance`    | `string` | `null`          | _Optional:_ Determines how auth credentials are persisted. Options: `"localStorage"`, `"sessionStorage"`, or `false` to disable.   |
+| `requestTimeout`     | `number` | `30000`         | _Optional:_ Request timeout in milliseconds for API requests made from the browser. Defaults to 30 seconds.                        |
+| `requestCredentials` | `string` | `"same-origin"` | _Optional:_ Controls cookie behavior for API requests. Options: `"omit"`, `"same-origin"`, or `"include"`.                         |
 
 Example:
 
@@ -267,6 +268,7 @@ Example:
       proxy: "https://cors.pan.dev",  // Site-wide proxy (can be overridden per-spec in plugin config)
       authPersistance: "localStorage",
       requestTimeout: 60000, // 60 seconds
+      requestCredentials: "omit", // Prevent cookies from being sent with requests
     },
   },
 }
diff --git a/demo/docs/intro.mdx b/demo/docs/intro.mdx
index b543cb55e..4c2b16349 100644
--- a/demo/docs/intro.mdx
+++ b/demo/docs/intro.mdx
@@ -315,11 +315,12 @@ petstore: {
 
 The `docusaurus-theme-openapi-docs` theme can be configured with the following options in `themeConfig.api`:
 
-| Name             | Type     | Default | Description                                                                                                                                         |
-| ---------------- | -------- | ------- | --------------------------------------------------------------------------------------------------------------------------------------------------- |
-| `proxy`          | `string` | `null`  | _Optional:_ Site-wide proxy URL to prepend to base URL when performing API requests. Can be overridden per-spec via plugin config.                  |
-| `authPersistance`| `string` | `null`  | _Optional:_ Determines how auth credentials are persisted. Options: `"localStorage"`, `"sessionStorage"`, or `false` to disable.                    |
-| `requestTimeout` | `number` | `30000` | _Optional:_ Request timeout in milliseconds for API requests made from the browser. Defaults to 30 seconds.                                         |
+| Name                 | Type     | Default         | Description                                                                                                                        |
+| -------------------- | -------- | --------------- | ---------------------------------------------------------------------------------------------------------------------------------- |
+| `proxy`              | `string` | `null`          | _Optional:_ Site-wide proxy URL to prepend to base URL when performing API requests. Can be overridden per-spec via plugin config. |
+| `authPersistance`    | `string` | `null`          | _Optional:_ Determines how auth credentials are persisted. Options: `"localStorage"`, `"sessionStorage"`, or `false` to disable.   |
+| `requestTimeout`     | `number` | `30000`         | _Optional:_ Request timeout in milliseconds for API requests made from the browser. Defaults to 30 seconds.                        |
+| `requestCredentials` | `string` | `"same-origin"` | _Optional:_ Controls cookie behavior for API requests. Options: `"omit"`, `"same-origin"`, or `"include"`.                         |
 
 Example:
 
@@ -331,6 +332,7 @@ Example:
       proxy: "https://cors.pan.dev",  // Site-wide proxy (can be overridden per-spec in plugin config)
       authPersistance: "localStorage",
       requestTimeout: 60000, // 60 seconds
+      requestCredentials: "omit", // Prevent cookies from being sent with requests
     },
   },
 }
diff --git a/packages/docusaurus-plugin-openapi-docs/README.md b/packages/docusaurus-plugin-openapi-docs/README.md
index 3a7da65ba..4c8a619f6 100644
--- a/packages/docusaurus-plugin-openapi-docs/README.md
+++ b/packages/docusaurus-plugin-openapi-docs/README.md
@@ -253,11 +253,12 @@ petstore: {
 
 The `docusaurus-theme-openapi-docs` theme can be configured with the following options in `themeConfig.api`:
 
-| Name              | Type     | Default | Description                                                                                                                        |
-| ----------------- | -------- | ------- | ---------------------------------------------------------------------------------------------------------------------------------- |
-| `proxy`           | `string` | `null`  | _Optional:_ Site-wide proxy URL to prepend to base URL when performing API requests. Can be overridden per-spec via plugin config. |
-| `authPersistance` | `string` | `null`  | _Optional:_ Determines how auth credentials are persisted. Options: `"localStorage"`, `"sessionStorage"`, or `false` to disable.   |
-| `requestTimeout`  | `number` | `30000` | _Optional:_ Request timeout in milliseconds for API requests made from the browser. Defaults to 30 seconds.                        |
+| Name                 | Type     | Default         | Description                                                                                                                        |
+| -------------------- | -------- | --------------- | ---------------------------------------------------------------------------------------------------------------------------------- |
+| `proxy`              | `string` | `null`          | _Optional:_ Site-wide proxy URL to prepend to base URL when performing API requests. Can be overridden per-spec via plugin config. |
+| `authPersistance`    | `string` | `null`          | _Optional:_ Determines how auth credentials are persisted. Options: `"localStorage"`, `"sessionStorage"`, or `false` to disable.   |
+| `requestTimeout`     | `number` | `30000`         | _Optional:_ Request timeout in milliseconds for API requests made from the browser. Defaults to 30 seconds.                        |
+| `requestCredentials` | `string` | `"same-origin"` | _Optional:_ Controls cookie behavior for API requests. Options: `"omit"`, `"same-origin"`, or `"include"`.                         |
 
 Example:
 
@@ -269,6 +270,7 @@ Example:
       proxy: "https://cors.pan.dev",  // Site-wide proxy (can be overridden per-spec in plugin config)
       authPersistance: "localStorage",
       requestTimeout: 60000, // 60 seconds
+      requestCredentials: "omit", // Prevent cookies from being sent with requests
     },
   },
 }
diff --git a/packages/docusaurus-theme-openapi-docs/src/theme/ApiExplorer/Request/index.tsx b/packages/docusaurus-theme-openapi-docs/src/theme/ApiExplorer/Request/index.tsx
index 97c1a5782..74289439b 100644
--- a/packages/docusaurus-theme-openapi-docs/src/theme/ApiExplorer/Request/index.tsx
+++ b/packages/docusaurus-theme-openapi-docs/src/theme/ApiExplorer/Request/index.tsx
@@ -43,6 +43,7 @@ function Request({ item }: { item: ApiItem }) {
   const { siteConfig } = useDocusaurusContext();
   const themeConfig = siteConfig.themeConfig as ThemeConfig;
   const requestTimeout = themeConfig.api?.requestTimeout;
+  const requestCredentials = themeConfig.api?.requestCredentials;
   // Frontmatter proxy (per-spec) takes precedence over theme config proxy (site-wide)
   const proxy = frontMatterProxy ?? themeConfig.api?.proxy;
 
@@ -171,7 +172,8 @@ function Request({ item }: { item: ApiItem }) {
         postmanRequest,
         proxy,
         body,
-        requestTimeout
+        requestTimeout,
+        requestCredentials
       );
       if (res.headers.get("content-type")?.includes("text/event-stream")) {
         await handleEventStream(res);
diff --git a/packages/docusaurus-theme-openapi-docs/src/theme/ApiExplorer/Request/makeRequest.ts b/packages/docusaurus-theme-openapi-docs/src/theme/ApiExplorer/Request/makeRequest.ts
index 914311703..5770d1ef0 100644
--- a/packages/docusaurus-theme-openapi-docs/src/theme/ApiExplorer/Request/makeRequest.ts
+++ b/packages/docusaurus-theme-openapi-docs/src/theme/ApiExplorer/Request/makeRequest.ts
@@ -114,7 +114,8 @@ async function makeRequest(
   request: sdk.Request,
   proxy: string | undefined,
   _body: Body,
-  timeout: number = DEFAULT_REQUEST_TIMEOUT
+  timeout: number = DEFAULT_REQUEST_TIMEOUT,
+  credentials?: RequestCredentials
 ) {
   const headers = request.toJSON().header;
 
@@ -252,6 +253,7 @@ async function makeRequest(
     method: request.method,
     headers: myHeaders,
     body: myBody,
+    ...(credentials && { credentials }),
   };
 
   let finalUrl = request.url.toString();
diff --git a/packages/docusaurus-theme-openapi-docs/src/types.d.ts b/packages/docusaurus-theme-openapi-docs/src/types.d.ts
index 349e8bea1..0afd06934 100644
--- a/packages/docusaurus-theme-openapi-docs/src/types.d.ts
+++ b/packages/docusaurus-theme-openapi-docs/src/types.d.ts
@@ -27,6 +27,13 @@ export interface ThemeConfig {
     authPersistence?: false | "sessionStorage" | "localStorage";
     /** Request timeout in milliseconds. Defaults to 30000 (30 seconds). */
     requestTimeout?: number;
+    /**
+     * Controls whether cookies and credentials are sent with API requests.
+     * - `"omit"`: Never send cookies (useful when docs are on same domain as app)
+     * - `"same-origin"`: Send cookies for same-origin requests (default browser behavior)
+     * - `"include"`: Always send cookies, even for cross-origin requests
+     */
+    requestCredentials?: "omit" | "same-origin" | "include";
   };
 }