Setup guides
Switching an existing integration to a different billing route is usually a base URL change, not a rewrite. These walk through it tool by tool.
Claude Code
Two environment variables, verification via curl, and the four errors people actually hit.
Cursor
Where the base URL override lives, and how to confirm requests are routing.
OpenAI & Anthropic SDK
One base_url argument. Python, Node and curl examples.
Before you start
- Generate an API key from your gateway dashboard and copy the base URL.
- Run a single curl request before you migrate any real traffic.
- Keep the base URL in an environment variable so switching back is instant.