Base URL and Endpoints
For OpenAI-compatible SDKs and tools, use this Base URL:
For direct HTTP requests, append the endpoint path shown below.
Common endpoints
Base URL versus full endpoint
SDKs usually ask for a Base URL and append the operation path themselves:
Some tools ask for a complete endpoint instead. Read the field label and the integration guide before adding /chat/completions, /responses, or /messages manually.
Avoid duplicated paths
A duplicated path is a common cause of 404 Not Found errors.
If a tool has separate fields for API Host, API Version, and Endpoint, follow that tool's dedicated integration guide rather than guessing which path it appends.
Authentication
Unless an integration guide states otherwise, send:
Multipart endpoints, such as audio transcription and video creation, set their own Content-Type boundary automatically when you use curl -F or an SDK.
