diff --git a/.changeset/cool-falcons-push.md b/.changeset/cool-falcons-push.md
new file mode 100644
index 000000000..08afde73c
--- /dev/null
+++ b/.changeset/cool-falcons-push.md
@@ -0,0 +1,6 @@
+---
+'@gitbook/react-openapi': patch
+'gitbook': patch
+---
+
+Upgrade the scalar api client package
diff --git a/bun.lockb b/bun.lockb
index a56593f1b..e8e2b84b6 100755
Binary files a/bun.lockb and b/bun.lockb differ
diff --git a/packages/gitbook/package.json b/packages/gitbook/package.json
index 51135be9f..f2cf9515b 100644
--- a/packages/gitbook/package.json
+++ b/packages/gitbook/package.json
@@ -69,7 +69,7 @@
     "devDependencies": {
         "@argos-ci/playwright": "^2.0.0",
         "@playwright/test": "^1.42.1",
-        "@cloudflare/next-on-pages": "^1.13.3",
+        "@cloudflare/next-on-pages": "^1.13.5",
         "@cloudflare/workers-types": "^4.20240725.0",
         "@types/js-cookie": "^3.0.6",
         "@types/jsontoxml": "^1.0.5",
diff --git a/packages/gitbook/src/components/DocumentView/OpenAPI/OpenAPI.tsx b/packages/gitbook/src/components/DocumentView/OpenAPI/OpenAPI.tsx
index 014a53193..e1a387d58 100644
--- a/packages/gitbook/src/components/DocumentView/OpenAPI/OpenAPI.tsx
+++ b/packages/gitbook/src/components/DocumentView/OpenAPI/OpenAPI.tsx
@@ -29,7 +29,7 @@ export async function OpenAPI(props: BlockProps<DocumentBlockSwagger>) {
 
 async function OpenAPIBody(props: BlockProps<DocumentBlockSwagger>) {
     const { block, context } = props;
-    const { data, error } = await fetchOpenAPIBlock(block, context.resolveContentRef);
+    const { data, specUrl, error } = await fetchOpenAPIBlock(block, context.resolveContentRef);
 
     if (error) {
         return (
@@ -41,7 +41,7 @@ async function OpenAPIBody(props: BlockProps<DocumentBlockSwagger>) {
         );
     }
 
-    if (!data) {
+    if (!data || !specUrl) {
         return null;
     }
 
@@ -49,6 +49,7 @@ async function OpenAPIBody(props: BlockProps<DocumentBlockSwagger>) {
         <OpenAPIOperation
             data={data}
             context={{
+                specUrl,
                 icons: {
                     chevronDown: <Icon icon="chevron-down" />,
                     chevronRight: <Icon icon="chevron-right" />,
diff --git a/packages/gitbook/src/components/DocumentView/OpenAPI/scalar.css b/packages/gitbook/src/components/DocumentView/OpenAPI/scalar.css
index e23957d82..f75a53ecc 100644
--- a/packages/gitbook/src/components/DocumentView/OpenAPI/scalar.css
+++ b/packages/gitbook/src/components/DocumentView/OpenAPI/scalar.css
@@ -1,4 +1,7 @@
+@import '@scalar/api-client-react/style.css';
+
 .light .scalar-modal-layout,
+.light .scalar-app,
 .light .scalar {
     --scalar-color-1: color-mix(
         in srgb,
@@ -50,8 +53,13 @@
     --scalar-button-1: rgb(49 53 56);
     --scalar-button-1-color: #fff;
     --scalar-button-1-hover: rgb(28 31 33);
+
+    --scalar-shadow-1: 0 1px 3px 0 rgba(0, 0, 0, 0.11);
+    --scalar-shadow-2: rgba(0, 0, 0, 0.08) 0px 13px 20px 0px, rgba(0, 0, 0, 0.08) 0px 3px 8px 0px,
+        #eeeeed 0px 0 0 1px;
 }
 .dark .scalar-modal-layout,
+.dark .scalar-app,
 .dark .scalar {
     --scalar-color-1: color-mix(
         in srgb,
@@ -102,8 +110,13 @@
     --scalar-button-1: #f6f6f6;
     --scalar-button-1-color: #000;
     --scalar-button-1-hover: #e7e7e7;
+
+    --scalar-shadow-1: 0 1px 3px 0 rgb(0, 0, 0, 0.1);
+    --scalar-shadow-2: rgba(15, 15, 15, 0.2) 0px 3px 6px, rgba(15, 15, 15, 0.4) 0px 9px 24px,
+        0 0 0 1px rgba(255, 255, 255, 0.1);
 }
 .scalar-modal-layout,
+.scalar-app,
 .scalar {
     --scalar-font: initial;
     --scalar-font-code: var(--font-mono);
@@ -165,7 +178,7 @@
 .scalar-api-client__close:hover {
     cursor: pointer;
 }
-.scalar .scalar-app {
+.scalar .scalar-app-layout {
     background: var(--scalar-background-3);
     height: calc(100dvh - 100px);
     max-width: 1280px;
@@ -202,23 +215,6 @@
     cursor: pointer;
     animation: scalardrawerexitfadein 0.35s forwards;
 }
-.scalar .scalar-app-exit:before {
-    content: '\00d7';
-    font-family: sans-serif;
-    position: absolute;
-    top: 0;
-    right: 0;
-    font-size: 30px;
-    font-weight: 100;
-    line-height: 50px;
-    right: 12px;
-    text-align: center;
-    color: white;
-    opacity: 0.6;
-}
-.scalar .scalar-app-exit:hover:before {
-    opacity: 1;
-}
 @keyframes scalardrawerexitfadein {
     from {
         opacity: 0;
@@ -305,11 +301,6 @@
     scrollbar-width: thin;
     -webkit-overflow-scrolling: touch;
 }
-@supports (-moz-appearance: none) {
-    .scalar .custom-scroll {
-        padding-right: 12px;
-    }
-}
 .scalar .custom-scroll:hover {
     scrollbar-color: rgba(0, 0, 0, 0.24) transparent;
 }
@@ -347,3 +338,18 @@
         padding-right: 12px;
     }
 }
+.dark .scalar .client-wrapper-bg-color {
+    background: linear-gradient(
+        color-mix(in srgb, var(--tw-bg-base) 6%, transparent) 1%,
+        color-mix(in srgb, var(--scalar-background-1) 30%, black) 9%
+    );
+}
+.light .scalar .client-wrapper-bg-color {
+    background-color: var(--scalar-background-2) !important;
+}
+.scalar .gitbook-show {
+    display: block !important;
+}
+.scalar .gitbook-hidden {
+    display: none !important;
+}
diff --git a/packages/gitbook/src/lib/openapi.ts b/packages/gitbook/src/lib/openapi.ts
index a079295e3..26c798fbb 100644
--- a/packages/gitbook/src/lib/openapi.ts
+++ b/packages/gitbook/src/lib/openapi.ts
@@ -19,12 +19,12 @@ export async function fetchOpenAPIBlock(
     block: DocumentBlockSwagger,
     resolveContentRef: (ref: ContentRef) => Promise<ResolvedContentRef | null>,
 ): Promise<
-    | { data: OpenAPIOperationData | null; error?: undefined }
-    | { error: OpenAPIFetchError; data?: undefined }
+    | { data: OpenAPIOperationData | null; specUrl: string | null; error?: undefined }
+    | { error: OpenAPIFetchError; data?: undefined; specUrl?: undefined }
 > {
     const resolved = block.data.ref ? await resolveContentRef(block.data.ref) : null;
     if (!resolved || !block.data.path || !block.data.method) {
-        return { data: null };
+        return { data: null, specUrl: null };
     }
 
     try {
@@ -37,7 +37,7 @@ export async function fetchOpenAPIBlock(
             fetcher,
         );
 
-        return { data };
+        return { data, specUrl: resolved.href };
     } catch (error) {
         if (error instanceof OpenAPIFetchError) {
             return { error };
diff --git a/packages/react-openapi/package.json b/packages/react-openapi/package.json
index fa08009bc..4e8a68c86 100644
--- a/packages/react-openapi/package.json
+++ b/packages/react-openapi/package.json
@@ -10,8 +10,7 @@
     },
     "version": "0.6.0",
     "dependencies": {
-        "@scalar/api-client-react": "0.3.7",
-        "@scalar/oas-utils": "0.1.6",
+        "@scalar/api-client-react": "1.0.65",
         "classnames": "^2.5.1",
         "flatted": "^3.2.9",
         "openapi-types": "^12.1.3",
diff --git a/packages/react-openapi/src/OpenAPICodeSample.tsx b/packages/react-openapi/src/OpenAPICodeSample.tsx
index 265d57207..62e8bf41f 100644
--- a/packages/react-openapi/src/OpenAPICodeSample.tsx
+++ b/packages/react-openapi/src/OpenAPICodeSample.tsx
@@ -1,7 +1,7 @@
 import * as React from 'react';
 
 import { CodeSampleInput, codeSampleGenerators } from './code-samples';
-import { OpenAPIOperationData, toJSON } from './fetchOpenAPIOperation';
+import { OpenAPIOperationData } from './fetchOpenAPIOperation';
 import { generateMediaTypeExample, generateSchemaExample } from './generateSchemaExample';
 import { InteractiveSection } from './InteractiveSection';
 import { getServersURL } from './OpenAPIServerURL';
@@ -112,11 +112,6 @@ export function OpenAPICodeSample(props: {
         return null;
     }
 
-    async function fetchOperationData() {
-        'use server';
-        return toJSON(data);
-    }
-
     return (
         <InteractiveSection
             header="Request"
@@ -124,7 +119,7 @@ export function OpenAPICodeSample(props: {
             tabs={samples}
             overlay={
                 data['x-hideTryItPanel'] || data.operation['x-hideTryItPanel'] ? null : (
-                    <ScalarApiButton fetchOperationData={fetchOperationData} />
+                    <ScalarApiButton />
                 )
             }
         />
diff --git a/packages/react-openapi/src/OpenAPIOperation.tsx b/packages/react-openapi/src/OpenAPIOperation.tsx
index 365cede51..031aec24c 100644
--- a/packages/react-openapi/src/OpenAPIOperation.tsx
+++ b/packages/react-openapi/src/OpenAPIOperation.tsx
@@ -1,5 +1,6 @@
 import * as React from 'react';
 import classNames from 'classnames';
+import { ApiClientModalProvider } from '@scalar/api-client-react';
 
 import { OpenAPIOperationData, toJSON } from './fetchOpenAPIOperation';
 import { Markdown } from './Markdown';
@@ -8,7 +9,6 @@ import { OpenAPIResponseExample } from './OpenAPIResponseExample';
 import { OpenAPIServerURL } from './OpenAPIServerURL';
 import { OpenAPISpec } from './OpenAPISpec';
 import { OpenAPIClientContext, OpenAPIContextProps } from './types';
-import { ScalarApiClient } from './ScalarApiButton';
 
 /**
  * Display an interactive OpenAPI operation.
@@ -28,7 +28,10 @@ export function OpenAPIOperation(props: {
     };
 
     return (
-        <ScalarApiClient>
+        <ApiClientModalProvider
+            configuration={{ spec: { url: context.specUrl } }}
+            initialRequest={{ path: data.path, method: data.method }}
+        >
             <div className={classNames('openapi-operation', className)}>
                 <div className="openapi-intro">
                     <h2 className="openapi-summary" id={context.id}>
@@ -64,6 +67,6 @@ export function OpenAPIOperation(props: {
                     </div>
                 </div>
             </div>
-        </ScalarApiClient>
+        </ApiClientModalProvider>
     );
 }
diff --git a/packages/react-openapi/src/ScalarApiButton.tsx b/packages/react-openapi/src/ScalarApiButton.tsx
index 02d9ffaa1..21b0b0ed1 100644
--- a/packages/react-openapi/src/ScalarApiButton.tsx
+++ b/packages/react-openapi/src/ScalarApiButton.tsx
@@ -1,44 +1,17 @@
 'use client';
-import {
-    Cookie,
-    getHarRequest,
-    getParametersFromOperation,
-    type TransformedOperation,
-    getRequestFromOperation,
-    Query,
-    Header,
-    RequestBody,
-} from '@scalar/oas-utils';
+
+import { useApiClientModal } from '@scalar/api-client-react';
 import React from 'react';
 
-import { OpenAPIOperationData, fromJSON } from './fetchOpenAPIOperation';
-
-const ApiClientReact = React.lazy(async () => {
-    const mod = await import('@scalar/api-client-react');
-    return { default: mod.ApiClientReact };
-});
-
-const ScalarContext = React.createContext<
-    (fetchOperationData: () => Promise<OpenAPIOperationData>) => void
->(() => {});
-
 /**
  * Button which launches the Scalar API Client
  */
-export function ScalarApiButton(props: {
-    fetchOperationData: () => Promise<OpenAPIOperationData>;
-}) {
-    const { fetchOperationData } = props;
-    const open = React.useContext(ScalarContext);
+export function ScalarApiButton() {
+    const client = useApiClientModal();
 
     return (
         <div className="scalar scalar-activate">
-            <button
-                className="scalar-activate-button"
-                onClick={() => {
-                    open(fetchOperationData);
-                }}
-            >
+            <button className="scalar-activate-button" onClick={() => client?.open()}>
                 <svg xmlns="http://www.w3.org/2000/svg" width="10" height="12" fill="none">
                     <path
                         stroke="currentColor"
@@ -51,111 +24,3 @@ export function ScalarApiButton(props: {
         </div>
     );
 }
-
-/**
- * Wrap the rendering with a context to open the scalar modal.
- */
-export function ScalarApiClient(props: { children: React.ReactNode }) {
-    const { children } = props;
-
-    const [active, setActive] = React.useState<null | {
-        operationData: OpenAPIOperationData | null;
-    }>(null);
-
-    const proxy = '/~scalar/proxy';
-
-    const open = React.useCallback(
-        async (fetchOperationData: () => Promise<OpenAPIOperationData>) => {
-            setActive({ operationData: null });
-            const operationData = fromJSON(await fetchOperationData());
-            setActive({ operationData });
-        },
-        [],
-    );
-
-    const onClose = React.useCallback(() => {
-        setActive(null);
-    }, []);
-
-    const request = React.useMemo(() => {
-        const operationData = active?.operationData;
-
-        if (!operationData) {
-            return null;
-        }
-
-        const operationId =
-            operationData.operation.operationId ?? operationData.method + operationData.path;
-
-        const operation = {
-            ...operationData,
-            httpVerb: operationData.method,
-            pathParameters: operationData.operation.parameters,
-        } as TransformedOperation;
-
-        const variables = getParametersFromOperation(operation, 'path', false);
-
-        const request = getHarRequest(
-            {
-                url: operationData.path,
-            },
-            getRequestFromOperation(
-                {
-                    ...operation,
-                    information: {
-                        requestBody: operationData.operation.requestBody as RequestBody,
-                    },
-                },
-                { requiredOnly: false },
-            ),
-        );
-
-        const data = {
-            id: operationId,
-            type: operationData.method,
-            path: operationData.path,
-            variables,
-            cookies: request.cookies.map((cookie: Cookie) => {
-                return { ...cookie, enabled: true };
-            }),
-            query: request.queryString.map((queryString: Query) => {
-                const query: typeof queryString & { required?: boolean } = queryString;
-                return { ...queryString, enabled: query.required ?? true };
-            }),
-            headers: request.headers.map((header: Header) => {
-                return { ...header, enabled: true };
-            }),
-            url: operationData.servers[0]?.url,
-            body: request.postData?.text,
-        };
-
-        return data;
-    }, [active]);
-
-    return (
-        <ScalarContext.Provider value={open}>
-            {children}
-            {active ? (
-                <div className="scalar">
-                    <div className="scalar-container">
-                        <div className="scalar-app">
-                            <React.Suspense fallback={<ScalarLoading />}>
-                                <ApiClientReact
-                                    close={onClose}
-                                    proxy={proxy}
-                                    isOpen={true}
-                                    request={request}
-                                />
-                            </React.Suspense>
-                        </div>
-                        <div onClick={() => onClose()} className="scalar-app-exit"></div>
-                    </div>
-                </div>
-            ) : null}
-        </ScalarContext.Provider>
-    );
-}
-
-function ScalarLoading() {
-    return <div className="scalar-app-loading">Loading...</div>;
-}
diff --git a/packages/react-openapi/src/types.ts b/packages/react-openapi/src/types.ts
index 156a28ac0..b176d2768 100644
--- a/packages/react-openapi/src/types.ts
+++ b/packages/react-openapi/src/types.ts
@@ -2,6 +2,9 @@ export type IconComponent = React.ComponentType<{ className?: string }>;
 
 export interface OpenAPIContextProps extends OpenAPIClientContext {
     CodeBlock: React.ComponentType<{ code: string; syntax: string }>;
+
+    /** Spec url for the Scalar Api Client */
+    specUrl: string;
 }
 
 export interface OpenAPIClientContext {