Opentargets Database

This pulls data from the Open Targets Platform, which aggregates genetics, clinical trials, pathways, and literature to score gene-disease associations. You'd use it for target discovery (finding genes linked to a disease), drug repurposing (what's already in trials), or evaluating druggability and safety liabilities before committing resources. The API returns scored evidence across types like GWAS, somatic mutations, known drugs, and expression data. It's built for early drug discovery work where you need to prioritize targets or understand what's already been tried clinically. The GraphQL interface means you can drill into specific evidence or pull broad association landscapes. Solid if you're doing computational biology or target assessment and don't want to manually scrape a dozen databases.