Overview

Most OpenAI-compatible clients only need two changes: the base URL and the API key. Model IDs may also need to be adjusted depending on provider availability.

Step 1: change the base URL

const client = new OpenAI({
  apiKey: process.env.UOUODUO_API_KEY,
  baseURL: "https://uouo.cloud/v1",
});

Step 2: change the API key

Create a key in `/app/keys` and store it as a server-side secret:

export UOUODUO_API_KEY="sk-xxx..."

Step 3: verify model IDs

Open `/models` or call `/v1/models` to confirm model IDs. If a direct OpenAI model ID is unavailable, choose an equivalent model from another provider.

Behavioral differences

• Routing may choose a different upstream provider than your previous direct integration.
• Streaming chunks follow OpenAI-compatible SSE format, but provider-specific details can vary.
• Usage and cost should be verified in `/app/logs`.
• Tool calling and structured output support can differ by model.

Migration checklist

1. Update base URL and API key.
2. Run a short non-streaming request.
3. Run a streaming request.
4. Test error handling for 401, 429, and 5xx.
5. Review logs, usage, and cost.
6. Roll out to staging before production.