Heli + FastAPI backend

FastAPI route

from openai import OpenAI
from fastapi import FastAPI

client = OpenAI(api_key=settings.heli_key, base_url="https://getheli.ru/v1")
app = FastAPI()

@app.post("/api/chat")
async def chat(body: ChatRequest):
    return client.chat.completions.create(
        model="openai/gpt-4.1-mini",
        messages=body.messages,
    )

Python SDK