Documentation
How to get a ChatGPT API key
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ChatGPT API is an independent platform, not affiliated with OpenAI. Through our OpenAI-compatible API you get access to GPT-5.6 models at reduced rates, with crypto payments and a drop-in integration.
Why get ChatGPT API access through our platform
Half the official price
The same OpenAI models at rates 50% below official. Pay only for the tokens you use, with no subscription.
Pay with crypto
Top up with USDT, BTC, ETH and more. No bank card required, and no VPN.
Drop-in integration
Keep your existing OpenAI SDK or a compatible tool. Just swap the base URL and API key, then pick a model.
Free test bonus
$0.25 balance after sign-up
New accounts get a $0.25 test balance. You can generate a key and send real requests before paying anything.
How to get access: 3 steps
1. Sign up
Create an account with email or Google. The test bonus lands on your balance right away.
2. Generate an API key
Open the dashboard and create a key. Top up your balance with crypto whenever you need it.
3. Point to our endpoint
Swap the base URL in your tool for ours and pass the key. Everything else works like the official OpenAI API.
How to verify the API key
Send a test request in the official OpenAI format. If the response contains the model's text, your key and base URL are correct.
curl https://api.llm-gate.tech/v1/chat/completions \
-H "Authorization: Bearer $CHATGPT_API_KEY" \
-H "Content-Type: application/json" \
-d '{
"model": "gpt-5.6-terra",
"messages": [{ "role": "user", "content": "ping" }]
}'Available models and pricing
One key gives you the full lineup: GPT-5.6-sol, GPT-5.6-terra, GPT-5.6-luna, GPT-5.5, GPT-5.4 and GPT-5.4-mini. Every rate is 50% below official; see the pricing page for the full table.
Input · per 1M tokens
$0.50$1.00
Output · per 1M tokens
$3.00$6.00
Input · per 1M tokens
$1.25$2.50
Output · per 1M tokens
$7.50$15.00
Input · per 1M tokens
$2.50$5.00
Output · per 1M tokens
$15.00$30.00
ChatGPT API · official price
View pricingFrequently asked questions
Do I need a VPN to use the ChatGPT API?+
No. Our endpoint is reachable directly, without a VPN. Sign-up and payment work from any region.
Do I need a bank card?+
No. You top up the balance with crypto (USDT, BTC, ETH and others); no card is required.
Will my existing OpenAI SDK code work?+
Yes. The request format matches the official OpenAI API. Just swap the base URL and API key; no refactor needed.
Next step
Generate a key, send your first request, and compare model prices before moving the rest of your traffic.