Connect Cursor API to Wix Headless Project

Wix Headless and Cursor API Integration Environment Comparison Table

When integrating Cursor-related AI features into an external frontend application built with the Wix Headless API, applicable conditions and permission settings vary by development environment and integration method. Select the API key issuance path and environment variable management owner first according to project requirements.

For apps deployed to a production server environment, both the Wix Headless Client ID and external AI API Key must be approved as backend environment variables. For local development environments, use the Cursor IDE Custom API Key menu to test with the developer's personal key.

Environment Variable Configuration and Project File Location

Verify the project directory structure configured with the Wix Headless SDK. For Node.js-based frameworks (Next.js or Vite), create the environment variable file (.env.local) at the root path to prevent security leaks.

wix-headless-app/
├── .env.local             <-- API key and Wix Client ID storage location
├── .gitignore             <-- Must include .env.local
├── package.json
├── src/
│   ├── lib/
│   │   ├── wixClient.ts   <-- @wix/sdk initialization code
│   │   └── aiClient.ts    <-- Cursor/OpenAI-compatible API call code
│   └── app/
│       └── page.tsx

If .env.local and .env are not registered in the .gitignore file, API keys will leak to the Git repository, so they must be excluded from transmission targets.

API Key Integration and SDK Call Configuration 5-Step Procedure

This is a consecutive execution procedure that builds the Wix Headless client initialization and Cursor/OpenAI-compatible API call pipeline.

1. Open the terminal and install the Wix Headless SDK and packages for API calls.

   npm install @wix/sdk @wix/stores openai
   

2. Create a .env.local file at the project root location and write the Wix and API keys as follows.

   NEXT_PUBLIC_WIX_CLIENT_ID=your_wix_client_id_here
   OPENAI_API_KEY=your_cursor_or_openai_api_key_here
   OPENAI_BASE_URL=https://openrouter.ai/api/v1
   

3. Create the src/lib/wixClient.ts file to initialize the Wix Headless API client.

   import { createClient, OAuthStrategy } from '@wix/sdk';
   import { products } from '@wix/stores';
   
   export const wixClient = createClient({
     modules: { products },
     auth: OAuthStrategy({
       clientId: process.env.NEXT_PUBLIC_WIX_CLIENT_ID!,
     }),
   });
   

4. Create the src/lib/aiClient.ts file to write the OpenAI SDK-compatible client for Cursor integration.

   import OpenAI from 'openai';
   
   export const aiClient = new OpenAI({
     apiKey: process.env.OPENAI_API_KEY,
     baseURL: process.env.OPENAI_BASE_URL || 'https://api.openai.com/v1',
   });
   

5. Run the development server in the terminal to check for loading errors.

   npm run dev
   

   If Ready in [ms] appears in the console, the basic environment connection is complete.

Security Permissions and Exclusion Settings for Repository Submission

To prevent API key leaks, delete all hardcoded Secret Key values inside the source code. The OAuth Client Secret issued during Wix Headless API construction and OpenAI/Cursor API keys must be accessed only server-side (API Route or Server Actions) so they are not exposed to the client browser.

Environment variables with the NEXT_PUBLIC_ prefix are directly included in browser bundle files. Therefore, never use the NEXT_PUBLIC_ prefix for any secret keys except the Wix Client ID.

API Connection Error Diagnosis and Cause Analysis Table

This guides the four representative error states occurring during integration, verification methods, and immediately applicable recovery measures.

If 401 errors persist, the account usage limit may be exceeded or a payment method may not be registered, so check remaining traffic in the service provider dashboard.

Integration Normal Operation Verification and Test Method

To verify the integration is correctly completed, perform an integrated test that retrieves a product list from Wix Headless and passes it as prompt input to the AI model.

Launch the development server with the npm run dev command in the terminal, access the test page, and confirm that an HTTP 200 OK response appears along with AI-generated text based on Wix product data displayed on screen. In the browser developer tools Network tab, verify that the API Key is not directly exposed in headers or URL parameters and is processed server-side.

If the API key is exposed directly on the client side, the logic must be completely moved to a server-side API path. If external proxy server integration is not possible, configure Supabase Edge Functions or Vercel Serverless Functions as an alternative layer.