# Work Items Track billable AI work tasks ## List work items - [GET /work_items](https://hyfn.redocly.app/openapi/work-items/listworkitems.md): Returns a list of all billable work items for your organization. ## Create work item - [POST /work_items](https://hyfn.redocly.app/openapi/work-items/createworkitem.md): Creates a new billable work item. ## Get work item - [GET /work_items/{workItemId}](https://hyfn.redocly.app/openapi/work-items/getworkitem.md): Returns details of a specific work item. ## Update work item - [PATCH /work_items/{workItemId}](https://hyfn.redocly.app/openapi/work-items/updateworkitem.md): Updates an existing work item. Note work items are immutable by design for audit purposes. ## Delete work item - [DELETE /work_items/{workItemId}](https://hyfn.redocly.app/openapi/work-items/deleteworkitem.md): Soft-deletes a work item (maintains audit trail).