Summary
Connects Claude to PubChem, the NIH's public chemistry database with 100+ million compounds. Exposes a single tool for now: get_synonyms, which retrieves all known names for a compound ID, including IUPAC names, common names, trade names, and CAS registry numbers. Runs through Pipeworx's gateway infrastructure, so no auth setup required. Useful when you need to cross-reference chemical identifiers, validate compound names, or find alternate nomenclature without leaving your editor. The gateway also supports natural language queries via ask_pipeworx if you'd rather describe what you need than call the tool directly.
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mcp-pubchem
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. |
Quick Start
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"
}
}
}
Using with ask_pipeworx
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.
More
License
MIT
Featured
Keep your Mac awake while Claude Code and 40+ AI agents run. Sleeps when they're idle.
One time payment $9 →Integrate web data into your AI product. One API to scrape website & brand data.
Get API Key Now →Agent, run crypto. Access onchain data & trade routes via 1inch.
Install now →On Capafy, your Skill runs online 24/7 as an agent product, and you get paid every time someone uses it.
Start earning →
