Buy ChatGPT API Access
Third-party ChatGPT API, drop-in compatible, pay-as-you-go, 50% cheaper than official, free quick start. Point your existing integration at our endpoint and ship.
- 50% below official pricing
- Pay with crypto
- No subscription · credits never expire
- gpt-5.6-sol$5.00$2.50
- gpt-5.6-terra$2.50$1.25
- gpt-5.6-luna$1.00$0.50
Test bonus
New accounts get a $0.25 test balance after sign-up. Try the gateway before buying credits.
How it works
Generate a key. Change one URL. Done.
Integration takes less than a minute.
1. Create an account
After you register, a $0.25 welcome bonus is credited to your balance so you can start testing any model right away.
2. Generate an API key
Create a ChatGPT API key from your dashboard. Top up your balance with crypto whenever you need it.
3. Point to our endpoint
Swap your base URL for our endpoint and keep using the SDK you already have. Every request shows up in your dashboard with token-level detail.
Compatible with both the official and OpenAI API formats
No refactor required - just point your existing integration to our endpoint. The same requests, headers, and streaming you already use keep working unchanged.
Set the base URL to https://api.llm-gate.tech/v1 and reuse your existing key handling.
// Point your existing SDK at our endpoint
const client = new OpenAI({
baseURL: "https://api.llm-gate.tech/v1",
apiKey: process.env.OPENAI_API_KEY,
});
const response = await client.responses.create({
model: "gpt-5.5",
input: "Is a hot dog a sandwich?",
});
console.log(response.output_text);Connect once. Work anywhere.
One key and one balance work across every tool on the list. Each comes with a short setup guide.
- Cursor
- Claude Code
- Copilot
- Codex
- Cline
- Open Code
- Continue
- Aider
- Zed
- OpenAI SDK
Pricing
Pay as you go, 50% cheaper
Cheaper than official OpenAI prices. No subscription, tokens never expire.
Discounted tokens
Buy once at a discount, then spend only on real requests.
Pay for actual usage
Every request is visible in the dashboard with token-level detail.
No subscription
No monthly fee, tokens never expire. Top up with crypto whenever you need to.
FAQ
Frequently asked questions
Everything about pricing, models, keys and setup.
How much does the ChatGPT API cost?
The ChatGPT API is pay-as-you-go and priced 50% below the official per-token list price. There is no subscription and no minimum spend - you buy credits once and they are only consumed when a request actually runs. Every request is metered at token level in your dashboard, so a small project can cost just a few cents. Pricing mirrors the official OpenAI per-token rates exactly, minus 50%, on both input and output tokens, and cached input is billed at the same discounted ratio. Because billing is usage-based rather than seat- or tier-based, your costs fall to near zero while your app is idle and scale up smoothly as traffic grows. You can see the full per-model breakdown on the pricing page and track spend in real time from your dashboard.
Is the ChatGPT API free?
Not entirely, but you can try it without paying first. New accounts get a $0.25 test balance right after sign-up - no card, no subscription - so you can generate a key, send real requests to any model, and see actual token-level billing in your dashboard before spending anything. Once that test balance runs out, the API stops working until you top up your balance with crypto (BTC, ETH, USDT, USDC); there's no automatic charge and no recurring fee. Every request after that is billed per token at 50% below the official OpenAI rate. Credits you buy never expire and there is no minimum spend, so a small side project can run for months on a few dollars.
Which models are available?
You get drop-in access to the latest OpenAI lineup - the new GPT-5.6 family (sol, terra, luna) plus GPT-5.5, GPT-5.4 and GPT-5.4-mini - through the official OpenAI format. Because we are API-format compatible, the model names you already use keep working. You pass the model ID in the standard `model` field of your request, exactly as with the official API, so switching between models is a one-line change. The full list of model IDs, with a short note on when to use each, is on the Models page in the docs.
Which model is best for coding?
For the hardest coding, refactoring and agentic tasks, gpt-5.6-sol is the strongest choice - the new flagship of the 5.6 family. gpt-5.5 remains a solid all-rounder. For faster, cheaper day-to-day coding and high-volume completions, gpt-5.6-luna and gpt-5.4-mini give the best balance of speed and cost.
How do I get a ChatGPT API key?
Register for a free account, open your dashboard, and click “Generate key”. Your ChatGPT API key works immediately - set it as your API key and point the base URL at our endpoint. No approval queue and no waiting.
Which base URL do I use?
Set the base URL in your SDK or tool to https://api.llm-gate.tech/v1.
Ready to start building?
Get $0.25 bonus and send your first request in under a minute.