API endpoint configuration (Python)

Set the client base URL to https://api.therouter.ai/v1. The client appends the endpoint path; do not append /chat/completions to the base URL. Use a TheRouter key rather than an OpenAI key.

This guide uses the official OpenAI client with TheRouter; it is not a TheRouter-owned SDK. The therouter and @therouter/sdk packages previously named here are not currently published in the public package registries.

pip install openai

import os
from openai import OpenAI

client = OpenAI(api_key=os.environ["THEROUTER_API_KEY"], base_url="https://api.therouter.ai/v1")
completion = client.chat.completions.create(
    model="openai/gpt-4o-mini",
    messages=[{"role": "user", "content": "Hello!"}],
    max_tokens=32,
)
print(completion.choices[0].message.content)