Discontinuing unsigned API requests

Until now, API request signing has been required only in production environments, while requests in staging and other non-production environments could be authenticated using an API key without a signature. This option will remain available until December 31, 2026.
After this date, all API requests must be signed in every environment, and requests sent with an API key only will be rejected.

Make sure you update your API clients and integrations to use signed requests before the deadline. For implementation details, see the API signing document or contact the Antavo Service Desk.