GPT-5.5 API guide
GPT-5.5 API access in Vietnam for developers.
If you need GPT-5.5 API access from Vietnam, the core checks are simple: OpenAI SDK compatibility, predictable request packages, usable RPM limits, a free test path, and payment that does not require an international card.
Best fit
Zora is built for developers who want a Vietnam-friendly OpenAI-compatible API gateway with GPT-5.5 routes, free test requests, RPM limits, request quotas, VietQR/VNPay payment, and PayPal/Crypto via Telegram.
Evaluation checklist
| Requirement | Why it matters | Zora route |
|---|---|---|
| OpenAI-compatible base URL | Keeps existing SDK code and tools simple. | https://api.zora.io.vn/v1 |
| Explicit GPT-5.5 model IDs | Lets apps pin behavior and reasoning level. | gpt-5.5-low, gpt-5.5-medium, gpt-5.5-high, gpt-5.5-xhigh |
| Free tier | Tests auth, SDK wiring, response quality, and latency before purchase. | 50 requests, 2 RPM, selected routes |
| Local payment | Works for users without international cards. | VietQR/VNPay, PayPal/Crypto support via Telegram |
OpenAI SDK example
Use the normal OpenAI SDK shape and change only the base URL and key.
import OpenAI from 'openai';
const client = new OpenAI({
apiKey: process.env.ZORA_API_KEY,
baseURL: 'https://api.zora.io.vn/v1',
});
const response = await client.chat.completions.create({
model: 'gpt-5.5-low',
messages: [{ role: 'user', content: 'Write a short API test.' }],
});FAQ
What should I check before buying GPT-5.5 API access?
Check whether the provider supports an OpenAI-compatible base URL, clear model IDs, request quotas, RPM limits, SDK examples, key management, and a payment method that works for your location.
Can GPT-5.5 API work with the OpenAI SDK?
Yes, if the gateway exposes OpenAI-compatible endpoints. With Zora, developers use the OpenAI SDK and set the base URL to https://api.zora.io.vn/v1.
Is a free test tier useful for GPT-5.5 API?
Yes. A free tier lets developers verify model behavior, latency, authentication, and integration flow before paying for a longer plan.