Pubchem Mcp

io.github.mrfentmenPublished by GitHub account mrfentmenv1.0.0Updated Oct 24, 2026

Look up chemical compound properties and synonyms from PubChem. No key required.

VerifiedSTDIODesktop onlyData & Analytics

Overview

AI-generated overview

Lets an assistant look up chemical compound properties and synonyms from PubChem without an API key.

What you can do
This server connects an assistant to PubChem so it can retrieve chemical compound information. According to the registry description, it looks up compound properties and synonyms. It runs locally over stdio, so the assistant calls it as a local tool rather than a hosted service.
When to use it
Useful when a conversation involves chemistry and you want compound names, synonyms, or property data pulled from PubChem on demand. It suits research, education, or data-gathering tasks where an assistant needs to resolve chemical identifiers.
Requirements
Runs as a local process on the user's machine, installed from the npm package @mrfentmen/pubchem-mcp over stdio, so Node.js and npm are needed. No API key, environment variables, or headers are declared. Desktop only; not available as a web executable.
Before you install
No credentials, payments, or write actions are indicated; the server only reads public PubChem data. Queries are sent to PubChem, so lookups leave your machine and are subject to that service's terms and rate limits. No README was provided, so review the package before installing.

Installation

In SourceWeft

  1. Open Pubchem Mcp in the dashboard and add it to a workspace.
  2. Enable the server for the chats that should use its tools.

Desktop only via STDIO. STDIO servers start a local process, so they need the SourceWeft desktop host.

Other MCP clients

Follow the launch instructions in the repository.

README

This repository has no README.

Tools

0
SourceWeft has not started this package in its sandbox yet, so its tools are not known.

Version history

1
  1. v1.0.0LatestSep 22, 2026

Score

25% of the applicable checks met

How complete this listing is, computed from the registry entry, the endpoint and public sources. Not a rating of the server and not a statement that it is safe or working today: reachability is a dated check, and no installs or reviews go into the score.

  • Reached in the last 30 days25 pts

    Keep the endpoint answering the MCP handshake; SourceWeft probes it every 30 days.

  • Auth declared10 pts

    Declare the credential headers in the registry entry, or keep the endpoint answering the probe so its auth can be classified.

  • Tools listed15 pts

    Answer tools/list without a credential, or ship a package that starts in a sandbox without one.

  • DescriptionRequired15 pts
  • Logo10 pts
  • Documentation15 pts

    Declare a GitHub repository with a README, or serve resource_documentation in the OAuth protected-resource metadata.

  • License10 pts

    Declare a license in the repository or the registry entry.