Provenancewhere it came from, and what was verified
Published to the official MCP registry by github.com/cyanheads, which proved it owns this namespace.
🛡 Permissions & trustwhat this server can touch before you run it
About
Search PubChem compounds, properties, safety data, bioactivity, and cross-references.
Packages & transports
Computed from the server's own data, not a hidden formula. This measures how much you can depend on it, not how popular it is. Stars are shown separately, on purpose. How it's scored →
▸pubchem_search_compounds100A
▸pubchem_get_compound_details100A
▸pubchem_get_compound_image100A
▸pubchem_get_compound_3d_structure100A
▸pubchem_get_compound_xrefs100A
▸pubchem_get_compound_safety100A
▸pubchem_get_bioactivity100A
▸pubchem_get_compound_interactions100A
▸pubchem_search_assays100A
▸pubchem_get_summary100A
Structural, not an LLM's opinion: each check is a fact about the tool's schema, so it's reproducible. One weak tool drags the score (60% average, 40% worst). How it's scored →
Raise this grade
up to +9 on qualityOwn this server? Here's exactly what to change, biggest wins first. Every number below is a fixed point value, so you can see what each edit is worth before you make it.
With no reviews this sits at a neutral 11. Reviews reporting it works push it toward the full 20.
Already earned (5) ▾Already earned (5) ▴
These are structural checks, so the fixes are exact. See the full formula →
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[](https://socketcat.com/servers/io.github.cyanheads/pubchem-mcp-server)Shows your live quality grade and links back here. It updates itself as the grade changes.
Reviews
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{
"mcpServers": {
"pubchem_mcp_server": {
"command": "npx",
"args": [
"-y",
"@cyanheads/pubchem-mcp-server"
]
}
}
}▶ Try itlive against pubchem.caseyjhand.com
This server has a hosted endpoint, so we can connect and list its actual tools right here. Nothing runs on your machine.