OpenAI & Anthropic SDKs

There’s nothing to install beyond the official SDKs. Override the base URL and you’re done.

The /v1 gotcha

The OpenAI base URL includes /v1 (https://api.opengateway.one/oss/v1). The Anthropic base URL excludes it (https://api.opengateway.one/oss) because the SDK appends /v1/messages.

OpenAI SDK

Python

from openai import OpenAI

client = OpenAI(
    base_url="https://api.opengateway.one/oss/v1",  # includes /v1
    api_key="YOUR_KEY",
)
resp = client.chat.completions.create(
    model="claude-turbo-hub-qwen3-coder",
    messages=[{"role": "user", "content": "Hello!"}],
)
print(resp.choices[0].message.content)

TypeScript

import OpenAI from 'openai';

const client = new OpenAI({
  baseURL: 'https://api.opengateway.one/oss/v1', // includes /v1
  apiKey: process.env.OPENGATEWAY_API_KEY,
});
const resp = await client.chat.completions.create({
  model: 'claude-turbo-hub-qwen3-coder',
  messages: [{ role: 'user', content: 'Hello!' }],
});
console.log(resp.choices[0].message.content);

Anthropic SDK

Python

from anthropic import Anthropic

client = Anthropic(
    base_url="https://api.opengateway.one/oss",  # NO /v1
    api_key="YOUR_KEY",
)
msg = client.messages.create(
    model="claude-turbo-hub-qwen3-coder",
    max_tokens=512,
    messages=[{"role": "user", "content": "Hello!"}],
)
print(msg.content[0].text)

TypeScript

import Anthropic from '@anthropic-ai/sdk';

const client = new Anthropic({
  baseURL: 'https://api.opengateway.one/oss', // NO /v1
  apiKey: process.env.OPENGATEWAY_API_KEY,
});
const msg = await client.messages.create({
  model: 'claude-turbo-hub-qwen3-coder',
  max_tokens: 512,
  messages: [{ role: 'user', content: 'Hello!' }],
});
console.log(msg.content);

Want sugar?

The thin branded TypeScript and Python wrappers preconfigure the base URL, lane, headers, model aliases, and a single effort knob — while re-exporting the full stock clients so you never lose API access.