4 findingsStatic scanned
Lets you and your coding agent build MCP servers in TypeScript, with auth, storage and logging included.
60.9k installs/moApache-2.0
Pubchem MCP Server
cyanheads · MCP server
Gives your AI assistant access to PubChem chemical compound and bioassay data. Your agent can search for compounds by name, SMILES, InChIKey, formula, substructure or 2D similarity, then fetch physicochemical properties, GHS hazard classification, bioactivity and interactions for the results. It can also find bioassays by biological target and summarise entries for assays, genes, proteins and taxonomy. It runs on your machine or through a public hosted endpoint.
Written by ooruby from the README of @cyanheads/pubchem-mcp-server 0.6.6.
Not claimed by its maker. Is this yours? Prove it and answer the findings
Why it's useful
Your agent can read chemical data straight from PubChem instead of recalling formulas, hazards and assay results from memory.
What you could do with it
- Look up a compound by name or SMILES and ask your agent for its formula, weight and drug-likeness.
- Pull the GHS hazard classification for several compounds in a single batch.
- Find bioassays that test a protein target, starting from a gene symbol or UniProt accession.
Written from its documentation: what it says it can do, not what our checks found.
Maintenance
Not measuredNo release date is on record for this package yet. The nightly publisher check records one as it reaches each npm package, about once every ten nights.
Release activity only: it says nothing about quality or safety, and a finished small package can be fine without releases. How it is measured
What this does not cover
- Everything. Treat it as you would software from anywhere else.
Receipt history: every signed receipt for every version of this listing, and what changed between them.
In its maker's words
Search the PubChem chemical database for compounds, properties, safety data, bioactivity, cross-references, and entity summaries via MCP. STDIO or Streamable HTTP.
Compare with
Compare all 4How far this has been checked
Static scanned
- What it establishes
- Its published package, or for a hosted server its source repository at a recorded commit, was read file by file, without running it, by every check in our current scan.
- What it does not
- How it behaves when it runs, or anything the scan does not read yet: several rubric checks, the repository's history, and compiled code in folders named dist or build. For a hosted server, that the endpoint runs the code that was read. The ooruby Index sets out exactly what was read.
- Exactly what was read
- Version 0.6.6, the file with digest sha512-LNgbMmxB6z/A2my8eoYfPnKM9tjsbaUEY7cOvSmsId/l4spL7/a9I1mqeyJHASGyavoepZVT5woil2ev+IBmGA==, as the registry publishes it. A published version cannot be replaced, so this names the same bytes for anyone who checks.
- Authentication
- No auth declared. Its hosted endpoint, as the official MCP registry lists it, does not say it asks for a key. That is what the listing declares, not a finding that it has no protection.
Adding it
Paste this into your client's MCP configuration.
{
"mcpServers": {
"pubchem-mcp-server": {
"command": "npx",
"args": [
"-y",
"@cyanheads/pubchem-mcp-server@0.6.6"
]
}
}
}Or run it directly.
npx -y @cyanheads/pubchem-mcp-server@0.6.6Pinned to 0.6.6, which is the version the findings above were found in. Drop the version to take whatever is newest, and the report on this page stops describing what you installed.
Where this came from
- Registry
- npm
- Package
- @cyanheads/pubchem-mcp-server
- Version read
- 0.6.6
- Resolved
- 2026-10-10
No build provenance published. The repository above is the one the publisher declared, and nothing links it to the package you would install. That is not a mark against this listing, since most packages are published this way, but it is a check nobody can run.
The badge, if this is your listing
It renders the current rung (static scanned) and links back here, where what that does and does not establish is one click away. It updates itself as the evidence deepens.
[](https://ooruby.com/market/cyanheads-pubchem-mcp-server)About this listing
- Kind
- MCP server
- Category
- Research
- Pricing
- Free
- Sandbox
- No
- Hosted
- No
- Updated
- 2026-10-07
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Verification records what our published tests found on a specific version at a specific date. It is not a warranty, and it does not certify that software is free of defects.