Dear Abhijeet Singh I meant the definition that we know; “Species that exist only in one geographic region.” For example regional plants and their seconder metabolites, DNA barcodes, specific traits, etc. I want to know if there is a filter or something in the databases which we can choose while searching. Thank you.
Exactly, since endemic species are not universal but variable based on the geography, there can not be a standard database to have the information in one place.
In you original question you did not mention about which species you are interested in, animals; plants etc. thus referring you to any database is not logical. Also, most of the databases contains genomic data and metadata about environmental parameters, genome content etc. But I have not seen any database which contains the barcodes/primer information, and secondary metabolites.
Ofcourse you can use universal primers to target the species in question, and there are many out there on innternet or in published papers.
I dont think you can find all at one place, what you want to find, as of today. However, it would be a good database to make and have all such information in one place. May be you can make one and publish.