Pubchem Mcp Server

Wraps the PubChem REST APIs to let Claude search chemical compounds, pull properties, safety data, bioactivity profiles, and cross-references without leaving the conversation. You get 10 tools covering identifier lookup (name, SMILES, InChIKey), substructure and similarity searches, GHS hazard classification, drug interaction data, and BioAssay queries. Results include molecular descriptors, 2D/3D structures, pharmacological classifications, and links to external databases like DrugBank and ChEMBL. Ships with both stdio and a public HTTP endpoint at pubchem.caseyjhand.com, so you can skip the local install. Built on the author's mcp-ts-core framework with rate limiting and retry logic baked in. Useful for chemistry research, drug discovery workflows, or any task that needs programmatic access to one of the largest open chemical databases.