FAQ

Which API URL should I use?

Most OpenAI-compatible clients and SDKs use:

https://sprelaytoken.com/v1

Claude and Gemini native SDKs generally use the site root:

https://sprelaytoken.com

These are base URLs, not interchangeable complete endpoints. See Authentication and URLs.

Where do model names come from?

Use the Model Catalog for groups and prices, then GET /v1/models for exact IDs visible to the current key. Avoid static lists from old tutorials.

Why does a request fail when the account has funds?

Check whether the key is enabled, unexpired, within quota, allowed to use the model and IP, and assigned to a group that currently supports the model.

Should a client use the root domain or /v1?

Look at the field's example and whether the client appends a path. An OpenAI Base URL usually includes /v1; a Claude base URL uses the root domain. See OpenAI-Compatible Clients.

Can I put a key in a web page?

No. Visitors and browser tools can extract it. Store the key in your authenticated backend and enforce per-user limits there.

What should I do first when a request fails?

1. Run the minimal request.
2. Check whether a usage log exists.
3. Follow the API error guide for its status.
4. Debug the client only after curl succeeds.