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ChemDraw MCP (Unofficial) MCP Server

Molecule names or SMILES to 2D structures, reactions, mechanisms, spectra - offline via RDKit.

Local serverstdio

What is the ChemDraw MCP (Unofficial) MCP Server?

Molecule names or SMILES to 2D structures, reactions, mechanisms, spectra - offline via RDKit.

What it actually does

Built for pharmacy/chemistry students who spend too much time clicking hexagons: structures, full reaction schemes, step-by-step mechanisms, substance data sheets and Ph.Eur. assay calculations — straight from the chat, with an interactive preview panel rendered inline.

  • generate_molecule — — name/SMILES → 2D structure as PNG + SVG
  • generate_reaction — — educts + products + conditions → reaction scheme
  • batch_generate — — a whole list of structures in one call
  • generate_mechanism — — curved-arrow mechanisms (SN1, SN2, Fischer
  • generate_spectrum — — schematic spectra from peak lists (IR, NIR,
  • export_anki_deck — — exam-prep flashcards as a ready-to-import

More MCP options

Compare MCP servers by category, or browse hosted MCP servers if you prefer an endpoint over a local process.

Maintainer setup documentation.

How to install the ChemDraw MCP (Unofficial) MCP Server

{
  "mcpServers": {
    "chemdraw": {
      "command": "npx",
      "args": ["-y", "playwright"]
    }
  }
}

Add to claude_desktop_config.json, then restart Claude Desktop.

Frequently asked questions

Molecule names or SMILES to 2D structures, reactions, mechanisms, spectra - offline via RDKit. Confirm the tools offered by your installed version in the connected client. Tool availability and permissions depend on the server and account configuration.

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