Ensembl

Connects Claude to the Ensembl REST API for working with vertebrate genome data. Exposes seven core tools: stable ID lookups for genes, transcripts, and exons; gene symbol searches; cross-reference retrieval; sequence fetching; homology mappings; variation records; and the Variant Effect Predictor for analyzing genomic regions. Part of the Pipeworx gateway ecosystem, so you can either connect to just Ensembl or get access to their full catalog of 250+ data sources through a single endpoint. Useful when you need to annotate variants, trace gene homologs across species, or pull reference sequences without writing REST client code yourself.