In October, GrowthBook introduced its first REST API endpoint to list feature flags, marking the beginning of ongoing enhancements to their API offerings and documentation. The APIs are now fully documented using the OpenAPI 3.1 standard, with a new auto-generated documentation site that stays updated with each code change, enabling rapid iteration and the addition of new endpoints. The API facilitates new functionalities, such as syncing processed experiment results back to a data warehouse and automating feature management based on predefined guardrails, allowing users to programmatically disable features if certain metrics are not met. While most endpoints are currently read-only, GrowthBook plans to expand support for additional methods to enable more complex use cases.