Braintrust API · Endpoint removal
POST /v1/api_key stops working
Stopped working
On May 1, 2026, the POST /v1/api_key endpoint was removed from the public API. Calls to POST /v1/api_key fail because the REST API no longer supports creating them. This change also coincides with the removal of service token management endpoints.
What to use instead of these calls
Create API keys manually in the Braintrust UI, or have an organization owner create a service token with POST /v1/service_token for automation. Moving to service tokens requires deciding whether to issue tokens through an owner or generate keys interactively.
API keys can now only be created by a person in the Braintrust UI, or replaced by service tokens an organization owner issues.
Calls it hits
POST /v1/api_key
The REST API no longer supports creating either, and the POST /v1/api_key , POST /v1/service_token , and PUT /v1/service_token endpoints have been removed from the public API.
Facts
- API
- Braintrust API
api.braintrust.dev - Kind
- Endpoint removal
- Announced
- May 1, 2026
- Takes effect
- May 1, 2026
- Calls after that day
- Fail
- Source
- Announcement
- Last updated