Dynamic filtering and precision alteration of query responses responsive to request load

Embodiments relate to processing a request from a user device for access rights for a resource. An access management system can send a request to query a (e.g., cached or authoritative) data store for available access rights. The query may include an exact-match or fuzzy query. A set of access-right results responsive to the query can be identified. The system may transmit a communication to the user device that identifies the set, or a subset thereof. Upon receiving a selection of a result, the system can facilitate assigning access rights corresponding to the identified result to the user. In some instances, a level of precision at which a characteristic of an access-right result is identified and/or whether or how access rights are held depends on a request load.