OpenAI-compatible · prepaid
Every model you need.
One endpoint.
Route requests to DeepSeek, Kimi, GLM and more through a single OpenAI-compatible API. Top up a balance and pay only for the tokens you use.
No subscription · No monthly minimum · Cancel by not topping up
cURL Python JavaScript
curl https://capi.nataon.dev \
/v1/chat/completions \
-H "Authorization: Bearer sk-cs-…" \
-H "Content-Type: application/json" \
-d '{"model":"deepseek-v4.1-flash", \
"messages":[{"role":"user", \
"content":"hi"}]}' curl https://capi.nataon.dev/v1/chat/completions \
-H "Authorization: Bearer sk-cs-…" \
-H "Content-Type: application/json" \
-d '{"model":"deepseek-v4.1-flash","messages":[{"role":"user","content":"hi"}]}' capi.nataon.dev 200 OK
Live model pricing
All models| Model | Input / 1M | Output / 1M |
|---|---|---|
| deepseek-v4.1-flash | $0.0022 | $0.009 |
| hy3 | $0.0021 | $0.0087 |
One endpoint, many providers A single OpenAI-compatible URL. Swap models by changing one string — no SDK, no per-provider keys.
Cost visible per request Every call settles at the token rate you were quoted. Cached prefixes bill at the cached rate.
Balance you control Prepaid only. No card on file, no surprise renewal. Top up when you need to.
Start with a key, not a contract. Create an account, then top up a prepaid balance to start calling the API.
Create an account