# Hlix API reference

Explore endpoints, request examples, parameters, schemas, and responses at [/api-explorer/](/api-explorer/).

- [Endpoint reference](/api/reference/): static operation pages and their Markdown versions.
- [OpenAPI document](/openapi.json): the public contract for this documentation environment.

Protected operations accept an API key in x-api-key or a signed-in user session. Send X-Organization-Id explicitly on workspace-scoped automation. Session-only operations require a user session; an API key cannot replace it. Browser clients send their session cookies automatically. Server clients must preserve the complete Cookie header issued by their API host; cookie names vary by hosting region and environment.