Connects to ECHA, NIOSH, PubChem, and ILO ICSC databases to look up chemical hazard data across 468,000 substances. Exposes three tools: check_chemical returns SVHC status, occupational exposure limits, GHS classifications, and cosmetic/food regulatory flags for a given substance. check_svhc_list batch-validates chemicals against the EU Candidate List. search_chemicals finds substances by hazard phrase, organ target, or effect type. Runs on Cloudflare Workers with D1 for edge-distributed queries. Reach for this when you need free, source-linked alternatives to commercial chemical safety platforms like Chemwatch, or when building regulatory compliance workflows that need programmatic access to SVHC, REL/PEL, or GHS data without API fees.
claude mcp add --transport http io.github.rootsbymenda-chemical-safety https://chem-mcp-server.rootsbybenda.workers.dev/mcp