Pubchem for Cursor

io.github.pipeworx-io/pubchem

PubChem MCP — NIH chemistry compound database (no auth)

client:Cursor transport:streamable-http

Install Pubchem in Cursor

~/.cursor/mcp.json · windows: %USERPROFILE%\.cursor\mcp.json

{
  "mcpServers": {
    "pubchem": {
      "url": "https://gateway.pipeworx.io/pubchem/mcp"
    }
  }
}

Use .cursor/mcp.json in a project root instead to scope it to that project. Cursor merges both. Cursor docs