What to evaluate before you switch endpoints
A useful ChatGPT API proxy is not just about forwarding requests. Look for a clear compatibility layer, consistent response formats, and enough transparency to troubleshoot failures. The best test is whether your existing SDK works after only changing the base URL. You should also check whether streaming works, whether tool-calling or function-style payloads are preserved, and whether the service returns conventional HTTP status codes instead of hiding errors behind generic messages.
For practical usage, a good relay should handle simple text prompts, chat messages, and repeated requests without introducing odd headers or extra client work. If your deployment is in a region where direct connection is unreliable, a stable OpenAI-compatible relay can reduce integration friction while keeping your codebase nearly unchanged.
Smoke-test steps
- Set the API base to the relay endpoint and keep your existing API key format if supported.
- Send one short prompt with a deterministic model setting, such as low temperature, to reduce noise.
- Verify that the response body matches what your SDK expects, including JSON structure and token metadata.
- Run a second test with a longer message and a streaming request to confirm the connection stays stable.
- Review logs for latency, timeout patterns, and any retry behavior before rolling it into production.