M
API Matrix

CORS Proxy API

⭐ Beginner's Pick Development / No Auth Required Beginner HTTPS CORS
Free to Use Varies (check documentation)
92 Score
Grade A+
Visit Official Site Compare Alternatives

Overview

CORS Proxy acts as a middle-man server that forwards your HTTP requests to external APIs, stripping restrictive CORS headers so browsers can access them without cross-origin errors. It is useful during local development when you need to call third-party APIs that do not include permissive CORS headers. No authentication or API key is required.

💡

Beginner Tip

Browsers block requests to external APIs from different origins by default. This proxy forwards your request server-side, bypassing that restriction. Use it for development and testing only — in production you should configure CORS on your own server.

Available Data

CORS Proxy data via REST API
JSON-formatted response data
Freely accessible without authentication

Example Response

JSON Response 
{
  "status": "success",
  "data": {
    "result": "Data from CORS Proxy",
    "description": "Get around the dreaded CORS error by using this proxy as a middle man",
    "timestamp": "2025-01-15T10:00:00Z"
  }
}

Field Reference

status Success or failure indicator for the proxy request itself.
data.result The proxied response body from the target API.
data.description Human-readable description of the proxy operation.
data.timestamp ISO 8601 timestamp of when the proxied request was processed.

Implementation Example 

const url = "https://github.com/burhanuday/cors-proxy";
const response = await fetch(url);
if (!response.ok) throw new Error(`Request failed: ${response.status}`);
const data = await response.json();
console.log(data);

What Can You Build?

Note: These code examples are AI-generated and unverified. Always refer to the official API documentation for accurate usage.

Common Errors & Troubleshooting

403 Forbidden from target API The target API blocks requests from proxy IP ranges or requires special headers
✓ Try sending the request directly or add required headers like Authorization or Referer to your proxy request.
Proxy returns target error unchanged CORS Proxy transparently forwards non-2xx responses from the target server
✓ Check the target URL is correct and the API itself is returning a valid response before blaming the proxy.
Proxy not available or rate-limited The public CORS Proxy instance may be rate-limited or offline
✓ Run the open-source proxy locally with npm install and node server.js, or deploy it to your own server.

Matrix Score Breakdown

🌐 Reachability 30/30
⚡ Speed 20/20
🔒 Security 15/15
🛠 Developer XP 20/20
✓ Reliability 7/15
Response Time 42ms

Fully tested on Apr 5, 2026

Technical Specifications

Auth No Auth
HTTPS REQUIRED
CORS YES
Category Development
Difficulty Beginner
Verified: 2026-04-04

Similar APIs

View All →

24 Pull Requests

⭐ Beginner's Pick
87

24 Pull Requests is a community initiative that runs every December to encourage developers to contribute to open source projects.

No Auth Beginner HTTPS 228ms

Agify.io

⭐ Beginner's Pick
82

Agify.io is a free API that predicts the likely age of a person based solely on their first name, using a database of over 350 million historical records.

No Auth Beginner HTTPS 529ms

API Grátis

57

API Grátis is a Brazilian API aggregator that bundles multiple free utility services including CEP (postal code) lookup, CNPJ (company registry) data, vehicle plate information, and more — all under a single authentication token.

No Auth Beginner HTTPS 44ms

ApicAgent

⭐ Beginner's Pick
92

ApicAgent parses User-Agent strings into structured device and browser information, returning details like browser name, version, OS, device type, and whether the client is a bot.

No Auth Beginner HTTPS 109ms

APIs.guru

⭐ Beginner's Pick
87

APIs.guru maintains a crowd-sourced directory of OpenAPI (Swagger) specification files for hundreds of public web APIs, all normalized to OpenAPI 3.0 format.

No Auth Beginner HTTPS 146ms