LocalFree

Anvil MCP server

The-Warl0ck/anvil-mcp

Local physics/chemistry bench as MCP: plain words in, 12-domain simulations out.

1 GitHub stars352 npm downloads / month

Install Anvil in Claude Code

Claude Code
claude mcp add anvil -- npx -y anvil-mcp
mcp.json (Claude Desktop, Cursor, VS Code, Windsurf)
{
  "mcpServers": {
    "anvil": {
      "command": "npx",
      "args": [
        "-y",
        "anvil-mcp"
      ]
    }
  }
}

Frequently asked questions

What does the Anvil MCP server do?

Local physics/chemistry bench as MCP: plain words in, 12-domain simulations out.

Is the Anvil MCP server free?

Yes, most likely. Open source and no paid account or API key is mentioned in the listing. Check the provider for current pricing.

Does Anvil run locally or remotely?

Local. Runs on your machine (stdio). You install it with npx, uvx, Docker or from source.

How do I add Anvil to Claude Code?

Run: claude mcp add anvil -- npx -y anvil-mcp

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