CORS Proxy Server

What is this?

This is a CORS proxy that allows you to make requests to APIs that don't support CORS from your frontend applications. It acts as a middleware between your frontend and the target API, adding the necessary CORS headers to enable cross-origin requests.

Features

• No Authentication Required - Open for public use
• All HTTP Methods Supported - GET, POST, PUT, PATCH, DELETE, OPTIONS, HEAD
• Various Content Types - Handles JSON, text, and binary data (images, etc.)
• Header Forwarding - Passes your headers to the target API
• Error Handling - Clear error messages for debugging
• Binary Data Support - Works with images and other binary responses

How to Use

Basic Example (GET request)

const proxyUrl = 'https://cors-proxy-xi-ten.vercel.app/api/proxy';
const targetUrl = 'https://api.example.com/data';

fetch(`${proxyUrl}?url=${encodeURIComponent(targetUrl)}`)
  .then(response => response.json())
  .then(data => console.log(data))
  .catch(error => console.error('Error:', error));

POST Request Example

const proxyUrl = 'https://cors-proxy-xi-ten.vercel.app/api/proxy';
const targetUrl = 'https://api.example.com/data';

fetch(`${proxyUrl}?url=${encodeURIComponent(targetUrl)}`, {
  method: 'POST',
  headers: {
    'Content-Type': 'application/json'
  },
  body: JSON.stringify({ key: 'value' })
})
  .then(response => response.json())
  .then(data => console.log(data))
  .catch(error => console.error('Error:', error));

Test and Monitor

Want to see the proxy in action or monitor its usage?

Limitations

• This is a general-purpose proxy without authentication
• Rate limiting is based on Vercel's free tier limits
• Some APIs may reject requests from proxy servers
• Large responses might hit Vercel's serverless function size limits

Use Responsibly

This proxy is provided for development and testing purposes. Please use it responsibly and avoid sending sensitive data through it. If you need a more secure solution, consider deploying your own instance.