Biohub ESM helps you understand proteins from a name, accession, or sequence: score named mutations, find where a protein is constrained or tolerant, fold and view proteins and complexes with DNA, RNA, or ligands, and discover related proteins and their learned features in the ESM Atlas. It runs on the Biohub MCP after you sign in to Biohub, needs no API key or local install, and reports confidence, cost, and sources with every result.