About Molecule MCP
Molecule MCP is an MCP server published by ChatMol in the AI category: a model-context-protocol server for molecules.
The repository has 97 stars and 17 forks, with the last commit a year ago. Six months or more without a commit doesn't mean the server is broken, but check the open issues before depending on it in production.
Install
git clone https://github.com/ChatMol/molecule-mcpThis server has no ConduID identity, so agent calls to it are not receipted. Pin the version you install and review the source before granting it credentials.
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- ✓README presentThe repository ships documentation.
- ✓License declaredUsable under a stated license.
- !Tests presentNo tests found. Behaviour changes may go unnoticed between versions.
- !Dependencies pinnedNo lockfile. Installs can pull different code over time.
- ✓No dynamic code executionSource scan found no eval, dynamic Function, or shell execution.
- !Scoped permissionsDoesn't declare a permission scope. Assume it can do anything its process can.
README
Molecule-MCP
Molecule-MCP: A model-context-protocol server for molecules. Molecule-MCP connects molecule science releated tools to Claude AI through the Model Context Protocol (MCP), allowing Claude to directly interact with and control these tools and act as a co-scientist. This integration enables prompt assisted molecule modeling.

Installation
⚠️ Note: Molecule-MCP requires Claude Desktop to be installed and running.
- Go to Claude > Settings > Developer > Edit Config > claude_desktop_config.json to include the following:
{
"mcpServers": {
"pymol": {
"command": "/path/to/mcp",
"args": [
"run",
"/path/to/molecule-mcp/pymol_server.py"
]
},
"chimerax": {
"command": "/path/to/mcp",
"args": [
"run",
"/path/to/molecule-mcp/ChimeraX_server.py"
]
},
"gromacs_copilot": {
"command": "/path/to/mcp",
"args": [
"run",
"/path/to/molecule-mcp/mcp_server.py"
]
}
}
}
- Install mcp and get the script
pip install "mcp[cli]" chatmol
pip install git+https://github.com/ChatMol/gromacs_copilot.git # optional, for running gromacs_copilot
which mcp
the path to mcp will be displayed. Copy this path for the next step and replace /path/to/mcp with the path to mcp.
git clone https://github.com/ChatMol/molecule-mcp.git
cd molecule-mcp
pwd
the path to molecule-mcp will be displayed. Copy this path for the next step and replace /path/to/molecule-mcp with the path to molecule-mcp.
Disclaimer
Molecule-MCP is provided "as is" without warranty of any kind, express or implied. The authors and contributors disclaim all warranties including, but not limited to, the implied warranties of merchantability and fitness for a particular purpose. Users employ this software at their own risk.
The authors bear no responsibility for any consequences arising from the use, misuse, or misinterpretation of this software or its outputs. Results obtained through Molecule-MCP should be independently validated prior to use in research, publications, or decision-making processes.
This software is intended for research and educational purposes only. Users are solely responsible for ensuring compliance with applicable laws, regulations, and ethical standards in their jurisdiction.
README fetched from the repository 5 days ago. The original is authoritative.