23andMe's OAuth 2.0 API lets developers build apps and tools on the human genome. Our customers are genotyped for over 1,000,000 SNPs, conveniently accessible through our free REST API. Not genotyped? We have demo endpoints. No need for a Ph.D. Our scientists have analyzed disease risk, calculated ancestry, and found relatives for genotyped customers. You could use this data without even knowing what a gene is!