Yesterday's post covered the basic Vector Engine API offer. Today's note is

more practical: how to move an existing OpenAI SDK integration to an

OpenAI-compatible API relay with the smallest possible code change.

The useful part is that most apps already have the right abstraction. If your

code uses the OpenAI SDK, you usually only need to change the API key and the

base URL.

What Changes

In a direct OpenAI setup, the SDK sends requests to the default OpenAI endpoint.

With Vector Engine API, you keep the same SDK shape and point it at:

https://www.vectronode.com/v1

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That means your existing chat completion flow can stay familiar:

Same messages array

Same model field

Same chat.completions.create call

Same environment-variable based deployment pattern

Python Migration

Before:

from openai import OpenAI

client = OpenAI ( api_key = " YOUR_OPENAI_KEY " )

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After:

import os from openai import OpenAI

client =…