# Filter Keys The **Filter Keys** node allows you to filter the keys returned in the dataset. ## Options ### Keys This option displays a list of keys based on the output of the previous node. Select the keys you would like to return. ## Output Returns the current dataset with only the selected keys. ## Helpful tips * Click the **Refresh keys** button to reload the keys. --- # 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.alphi.dev/nodes/filter-keys.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.