mcp-pubchem

Name: Pubchem
Author: pipeworx-io

PubChem MCP — NIH chemistry compound database (no auth)

Part of Pipeworx — an MCP gateway connecting AI agents to 673+ live data sources.

Tools

Tool	Description
`get_synonyms`	List all names (synonyms) for a CID — common names, IUPAC, trade names, CAS numbers, etc.

Add to your MCP client (Claude Desktop, Cursor, Windsurf, etc.):

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

Or connect to the full Pipeworx gateway for access to all 673+ data sources:

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

Instead of calling tools directly, you can ask questions in plain English:

ask_pipeworx({ question: "your question about Pubchem data" })

The gateway picks the right tool and fills the arguments automatically.

MIT