# Operator API services

Publish a workflow operator version as a callable API service, then view, enable, disable, or invoke that service.

## Choose a task

| Task | Description |
| --- | --- |
| [Check service availability](https://omnifabric.cloudsigma.com/docs/reference/api/ai-studio/data-processing/operator-api-services/get-operator-api-service.html.md) | Check whether the specified operator version has been released, as well as the name, status, and input definitions required to call the service. |
| [Expose an operator version as an API](https://omnifabric.cloudsigma.com/docs/reference/api/ai-studio/data-processing/operator-api-services/publish-operator-api-service.html.md) | Publish the specified version of the operator as a callable API service. |
| [Execute an operator through its API](https://omnifabric.cloudsigma.com/docs/reference/api/ai-studio/data-processing/operator-api-services/invoke-operator-api-service.html.md) | Call the published and enabled operator API service. |
| [Enable operator API service](https://omnifabric.cloudsigma.com/docs/reference/api/ai-studio/data-processing/operator-api-services/enable-operator-api-service.html.md) | Enable the published operator API service. |
| [Disable operator API service](https://omnifabric.cloudsigma.com/docs/reference/api/ai-studio/data-processing/operator-api-services/disable-operator-api-service.html.md) | Deactivate the published operator API service. |