[ 200 OK ] [ .JSON ] [ ROUTE ] [ .MD ]

POST /v1/chat/completions
{ "model": "*", "stream": true }
<< 200  tokens=1.2k  cost=$0.004
>> route>openai  key=sk-****  ok
··· ··· ··· ··· ··· ··· ··· ···

OpenAI-compatible API access

One API key for the AI models your product needs.

Create an account, add balance, and call supported models from a clean OpenAI-style endpoint. Subaxis keeps keys, usage, and billing simple.

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OpenAI-style endpoint Usage visibility Prepaid credits

curl https://subaxis.dev/v1/chat/completions \
  -H "Authorization: Bearer $SUBAXIS_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "gpt-5.5",
    "messages": [
      {"role": "user", "content": "Why is the sky blue?"}
    ]
  }'

from openai import OpenAI

client = OpenAI(
    base_url="https://subaxis.dev/v1",
    api_key="$SUBAXIS_API_KEY",
)

response = client.chat.completions.create(
    model="gpt-5.5",
    messages=[{"role": "user", "content": "Why is the sky blue?"}],
)
print(response.choices[0].message.content)

import { createOpenAI } from "@ai-sdk/openai";
import { generateText } from "ai";

const subaxis = createOpenAI({
  baseURL: "https://subaxis.dev/v1",
  apiKey: process.env.SUBAXIS_API_KEY,
});

const { text } = await generateText({
  model: subaxis("gpt-5.5"),
  prompt: "Why is the sky blue?",
});

import OpenAI from "openai";

const client = new OpenAI({
  baseURL: "https://subaxis.dev/v1",
  apiKey: process.env.SUBAXIS_API_KEY,
});

const completion = await client.chat.completions.create({
  model: "gpt-5.5",
  messages: [{ role: "user", content: "Why is the sky blue?" }],
});

console.log(completion.choices[0].message.content);

const OpenAI = require("openai");

const client = new OpenAI({
  baseURL: "https://subaxis.dev/v1",
  apiKey: process.env.SUBAXIS_API_KEY,
});

client.chat.completions
  .create({
    model: "gpt-5.5",
    messages: [{ role: "user", content: "Why is the sky blue?" }],
  })
  .then((res) => console.log(res.choices[0].message.content));

package main

import (
  "context"
  "fmt"

  "github.com/openai/openai-go"
  "github.com/openai/openai-go/option"
)

func main() {
  client := openai.NewClient(
    option.WithBaseURL("https://subaxis.dev/v1"),
    option.WithAPIKey(os.Getenv("SUBAXIS_API_KEY")),
  )

  res, _ := client.Chat.Completions.New(context.TODO(), openai.ChatCompletionNewParams{
    Model: "gpt-5.5",
    Messages: []openai.ChatCompletionMessageParamUnion{
      openai.UserMessage("Why is the sky blue?"),
    },
  })

  fmt.Println(res.Choices[0].Message.Content)
}