Send a W&B API key as an HTTP bearer token:
The service resolves the W&B viewer, default entity, and team memberships on every management request. The proxy caches the same identity by a hash of the key.
Management entity selection
Omit the entity header to use the key’s default entity:
Select an accessible team with one header:
Entity query parameters are rejected. This prevents resource filters from being confused with ownership.
Proxy entity selection
The OpenAI client does not have a portable custom-header convention across every integration, so proxy requests select the entity in the JSON body:
In the Python OpenAI SDK, pass metadata through extra_body.
Production credentials
Prefer a W&B team service-account key for deployed applications and long-running jobs. Personal credentials couple availability to one employee’s access and default to that employee’s personal entity. Last modified on August 25, 2026