# Search functions Rightsline accepts several functions when performing a search request to the API that give the user great power to filter the results to the exact records they are looking for. * [Single query functions](https://api-docs.rightsline.com/search/search-functions/single-query-functions) * [Multi-query functions](https://api-docs.rightsline.com/search/search-functions/multi-query-functions) * [Join functions](https://api-docs.rightsline.com/search/search-functions/join-functions) The schema for all of the search functions for the 3 categories listed above can be found below. {% file src="" %} Search functions schema {% endfile %}