Method and system for providing information of an access point database are disclosed. In one embodiment, a method of providing information of an access point database comprises receiving a request to access an access point database from a mobile client, generating a segment of the access point database in accordance with at least an application requirement of the mobile client, and providing the segment of the access point database to the mobile client. The application requirement of the mobile client comprises precision level requested by the mobile client, and cache level of the mobile client. The method of generating a segment of the access point database comprises at least one of: generating the segment of the access point database in real-time, and providing the segment of the access point database previously generated and stored in the access point database.