SERVER

Pubchem

Rank #27,278

io.github.pipeworx-io/pubchem

PubChem MCP — NIH chemistry compound database (no auth)

First listed
May 12, 2026
Last publish date
Sep 26, 2026
PURPOSE

What you can do with Pubchem

Pubchem is a Model Context Protocol (MCP) server published by pipeworx-io. It ranks #27,278 of 144,396 active servers on MCP Toplist. Pubchem is listed across 3 registries — Official MCP, PulseMCP and Glama, with 3 tracked versions. It was first listed on May 12, 2026 and most recently updated on Sep 26, 2026.

Not verifiedMCP Toplist has not yet written a checked profile for this server, so the paragraph above is assembled from registry data only. The repository README is the authority on what it does.

CAPABILITIES AND LIMITATIONS

What Pubchem can and cannot do

Not verifiedMCP Toplist has not catalogued this server's tools or limitations. The repository README lists them.

REQUIREMENTS

What you need before using Pubchem

DeclaredNo credentialsNo credentials declared

The registry listing declares no required environment variables or authentication. This is declared metadata, not a verified install — the repository README is the authority.

Declared by Glama, last synced Oct 16, 2026. Not independently verified by MCP Toplist.

Declared in the registry install config

Hosted endpoint declared as public.

INSTALLATION AND FIRST TASK

Connect Pubchem and confirm it works

Remote · HTTP
claude mcp add --transport http pubchem https://gateway.pipeworx.io/pubchem/mcp
First successful task

After adding the config, ask your client to list this server's tools. A tool list confirms the connection; an empty list or an error means the server did not start or needs credentials.

ALTERNATIVES

When to choose another server

Other servers by pipeworx-io
View all pipeworx-io servers →

No task-specific alternatives are catalogued for Pubchemyet; the list above is its publisher's other servers.

MAINTENANCE AND EVIDENCE

What changed, and when this was checked

First listed
May 12, 2026
Latest version published
Sep 26, 2026
Version history
3 versions tracked (below)
Requirements evidence
Declared by Glama, last synced Oct 16, 2026. Not independently verified by MCP Toplist.
Profile checked
Not yet — purpose, capabilities and requirements above come from registry data only
Ranking data as of
Oct 16, 2026
Registry sightings

Do you maintain Pubchem? to correct or enrich this profile.

VERSIONS

Available versions (3)

0.1.0 · May 12, 20260.1.1 · Sep 25, 20260.1.2 · Sep 26, 2026May 12, 2026Sep 26, 2026
VersionPublished
0.1.2Sep 26, 2026
0.1.1Sep 25, 2026
0.1.0May 12, 2026
STANDING
#27,278of 144,396 active serversTop 25%

Ranks ahead of 117,118 of 144,396 servers on MCP Toplist.

BADGE

Show your rank

Maintain this server? Add the live rank badge to your README — it updates automatically as the leaderboard changes.

MCP Toplist: Top 25% of 144,396
Markdown
[![MCP Toplist](https://mcptoplist.com/badge/io.github.pipeworx-io%2Fpubchem.svg)](https://mcptoplist.com/server/io.github.pipeworx-io%2Fpubchem)
HTML
<a href="https://mcptoplist.com/server/io.github.pipeworx-io%2Fpubchem"><img src="https://mcptoplist.com/badge/io.github.pipeworx-io%2Fpubchem.svg" alt="MCP Toplist: Top 25% of 144,396" /></a>

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FAQ

Frequently asked questions

Who maintains Pubchem?
Pubchem is maintained by pipeworx-io, which publishes 1832 MCP servers (5344 total versions) tracked on MCP Toplist.
Is Pubchem listed on the Official MCP Registry?
Yes — Pubchem is listed on the Official MCP Registry, alongside PulseMCP and Glama.
How many versions does Pubchem have?
MCP Toplist tracks 3 versions of Pubchem, most recently published on Sep 26, 2026.
Where can I find the source code for Pubchem?
The source code for Pubchem is hosted at github.com/pipeworx-io/mcp-pubchem.
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