# Callback Service (Push) Users can provide Rekor with a REST API endpoint to seamlessly retrieve incident data as soon as they are created in Rekor Command™. The data includes a list of active Incidents [customized](/command-intelligence-services/incident-detection-api/overview.md#customizations) based on user preferences. ## Authentication The supported authentication methods of the Incidents Callback Service are: 1. **Basic Authentication** - using a *Username* and *Password* 2. **OAuth2** - using a *JSON Web Token* (*JWT*) --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://docs.rekor.ai/command-intelligence-services/incident-detection-api/integration-methods/callback-service-push.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.