xgt

xgt is a command-line tool for programmatic access to the GTDB REST API. It provides four subcommands: search (genome queries with pagination), genome (cards, metadata, taxonomic history), taxon (lineage and genome set retrieval), and diff (per-rank taxonomic comparison between any two GTDB releases). All subcommands support batch input, JSON/CSV/TSV output, file splitting, and automatic retry. Implemented in Rust as a self-contained binary with no runtime dependencies.