Step 1: set the baseline and choose one endpoint path
Before moving traffic, decide which client will be your test harness. Keep it simple: one model call, one API key, one base URL. If your stack already uses OpenAI-style clients, point them to the relay first and confirm that the headers, JSON shape, and streaming behavior are accepted. For Claude-centric projects, confirm whether the relay documentation maps nicely to Claude API中转站 style usage, and whether the service supports a stable path for production experiments.