pubchem mcp for Claude Code

io.github.mrfentmen/pubchem-mcp

Look up chemical compound properties and synonyms from PubChem. No key required.

client:Claude Code transport:stdio runtime:npm

Install pubchem mcp in Claude Code

run in your project directory

claude mcp add pubchem-mcp -- npx -y @mrfentmen/pubchem-mcp

Adds it for this project only. Append --scope user to make it available everywhere. Claude Code docs