API Reference

The &Open API is built on REST principles. It features consistent, resource-based endpoints, expects requests formatted according to JSON:API standards, delivers responses in JSON:API format, and employs conventional HTTP status codes, authentication methods, and actions.

The &Open API is designed for individual resource operations per request and does not accommodate batch modifications.

The &Open API experience varies across accounts as we introduce updates and customize features.

The &Open API uses calendar-based versioning to ensure transparency and predictable release cycles. Our versions follow the YYYY-MM format, representing the year and month when the API contract was frozen. Every request must include the AndOpen-API-Version header with a supported version. See the Versioning page for the full version table and details.