ephraimduncan

ephraimduncan / codex-cursor

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Local OpenAI-compatible proxy that routes Cursor IDE traffic to your ChatGPT/Codex subscription via the codex CLI tokens.

15
0
69% credibility
Found Apr 30, 2026 at 15 stars -- GitGems finds repos before they trend. Get early access to the next one.
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AI Analysis
TypeScript
AI Summary

Local service that routes Cursor's AI requests through a user's ChatGPT or Codex subscription to avoid metered OpenAI API charges.

How It Works

1
📰 Discover the helper

You hear about codex-cursor, a simple tool that lets your Cursor coding app use your existing ChatGPT subscription for AI help instead of paying extra.

2
🔧 Prepare your subscription

Install the free codex helper app and sign in with your ChatGPT account so it can access your plan.

3
🚀 Start your personal bridge

Run one easy command to launch a local service that links your subscription, and create a private password to keep it secure.

4
🌐 Make it reachable online

Use a quick free tunnel tool to turn your local service into a secure web address that works from anywhere.

5
⚙️ Connect in Cursor

Open Cursor settings, enter your new web address and private password, then choose a smart AI model like gpt-5.5.

6
✅ Verify and chat

Click verify to test the connection, and feel the excitement as your AI coding assistant lights up using your own plan.

🎉 Code with super AI

Now generate code, get suggestions, and build projects faster with powerful AI from your ChatGPT subscription, no limits or extra costs.

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Star Growth

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AI-Generated Review

What is codex-cursor?

Codex-cursor is a TypeScript-based local proxy server that routes Cursor IDE traffic to your ChatGPT or Codex subscription, using tokens from the codex CLI. It exposes an OpenAI-compatible `/v1/chat/completions` endpoint, letting Cursor's chat, Tab, and composer features tap your sub's limits instead of burning metered API keys. Run it with Bun via `bunx codex-cursor`, set Cursor's custom base URL, and pick models like `gpt-5.5` or `gpt-5.3-codex`.

Why is it gaining traction?

It delivers codex cursor integration without new subscriptions, turning your ChatGPT Plus into a local github copilot alternative that beats basic Cursor models on reasoning. Bun-powered one-liners, tunnel support for public URLs, and per-request logging (with verbose previews) make setup and debugging dead simple. Devs dig the codex vs cursor vs github copilot edge, especially for heavy IDE sessions.

Who should use this?

Cursor power users with codex CLI logins, like backend devs chaining tool calls in composer or frontend folks debugging with gpt-5.4-mini. Perfect for codex cursor ide workflows where API costs add up, but skip if you lack ChatGPT Plus or hate tunneling private proxies.

Verdict

Grab it if you're on Cursor and Codex—saves cash with clean docs and working models, though 15 stars and 0.7% credibility flag it as early alpha. Personal use only; verify tokens first.

(178 words)

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