Cursor GPT API

Cursor GPT / OpenAI API — no OpenAI account, pay with USDT

Use GPT-4o and other OpenAI models in Cursor without an OpenAI account or credit card. Top up with USDT or PayPal and connect via one OpenAI-compatible endpoint and key.

Many developers want to use GPT in Cursor but face credit card requirements and regional blocks from OpenAI. ClaudeN AI provides a prepaid USDT-friendly gateway that exposes an OpenAI-compatible endpoint, so you can configure Cursor once and switch between GPT, Claude and Gemini without new accounts.

Why use ClaudeN for GPT in Cursor

No OpenAI account or credit card

One key for GPT, Claude & Gemini

The same ClaudeN key and base URL works for GPT-4o, GPT-5, Claude and Gemini in Cursor. Just change the model name.

Prepaid and transparent

Top up small amounts and pay only for tokens you use. No surprise bills or auto-charges.

Native Cursor OpenAI provider support

Set openaiApiBase and openaiApiKey in Cursor settings. Your existing prompts and workflows stay the same.

How to use GPT in Cursor with ClaudeN

Create a free ClaudeN account — Register with email only. New users get trial credit — no card required.
Add balance with USDT or PayPal — Choose USDT (TRC20/ERC20) or PayPal. Your prepaid balance is credited quickly.
Generate an API key — Create one OpenAI-compatible API key from the dashboard. One key works for all supported models.
Configure Cursor settings — In Cursor: set OpenAI API Base to https://clauden.ai/v1 and paste your ClaudeN key. Add models like gpt-4o or gpt-5.

Cursor settings for GPT via ClaudeN

Only the base URL and key change. Everything else in Cursor works as before.

Cursor Settings (OpenAI Provider)

{
  "openaiApiBase": "https://clauden.ai/v1",
  "openaiApiKey": "$CLAUDEN_API_KEY"
}

// Then add model in Cursor:
// gpt-4o
// gpt-4o-mini
// gpt-5 (when available), claude-3-5-sonnet-20241022, gemini-1.5-pro, etc.

Resources

OpenAI-Compatible API for Claude, GPT & Gemini Anthropic Compatible API — Call Claude with OpenAI SDK USDT AI API — Pay for Claude, GPT & Gemini with Crypto AI API Without a Credit Card — Claude, GPT & Gemini LLM API Gateway — One Endpoint for Claude, GPT & Gemini Claude vs GPT vs Gemini API Pricing & Comparison Cheap LLM API — Low-Cost Access to Claude, GPT & Gemini LLM API Proxy — One Gateway for Claude, GPT & Gemini OpenAI Compatible API Proxy — One Endpoint for GPT, Claude & Gemini Claude API Proxy — Use Anthropic Claude Without an Account GPT API Proxy — Use OpenAI GPT Without an Account Gemini API Proxy — Use Google Gemini With Prepaid Credit Cursor + Claude API OpenRouter Alternative with USDT — Claude, GPT & Gemini LiteLLM alternative with USDT OpenAI Alternative API — Drop-in Compatible Endpoint Claude vs GPT vs Gemini API Quick Start Examples

Cursor GPT API — frequently asked questions

Can I really use GPT-4o in Cursor without an OpenAI account?

Yes. Configure Cursor to use ClaudeN as the OpenAI provider. Create a ClaudeN account, top up with USDT or PayPal, and use GPT models through our endpoint.

What models can I use in Cursor?

GPT-4o, GPT-5 series and other OpenAI models, plus Claude and Gemini, all via the same base URL. Change the model name in Cursor to switch.

Is this cheaper than using OpenAI directly?

ClaudeN passes through provider rates with prepaid USDT convenience. Many users see lower effective cost due to no card fees, flexible top-ups and no minimum spend.

Do I need both an OpenAI and a ClaudeN account?

No. You only need a ClaudeN account and key. Cursor connects to our OpenAI-compatible endpoint instead of OpenAI directly.

Can I use the same key for other tools besides Cursor?

Yes. One ClaudeN key works across OpenAI-compatible SDKs, Cursor, and other tools. Just change the model name to switch providers.

Sign up and get $5 free credit

Use GPT-4o and other OpenAI models in Cursor without an OpenAI account or credit card. Top up with USDT or PayPal and connect via one OpenAI-compatible endpoint and key.

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