Kelvin MCP Server: Install & Setup

Install Kelvin in Claude Code

Claude Code

claude mcp add --transport http kelvin https://kelvin.openconverters.com/mcp

mcp.json (Claude Desktop, Cursor, VS Code, Windsurf)

{
  "mcpServers": {
    "kelvin": {
      "url": "https://kelvin.openconverters.com/mcp"
    }
  }
}

Frequently asked questions

What does the Kelvin MCP server do?

Read-only parts catalogue for power electronics: search, selection, cross-reference.

Is the Kelvin MCP server free?

The server is free, but you will likely need an account. The server itself is free, but it connects to a service that needs an account or API key, which may have paid tiers. Check the provider for current pricing.

Does Kelvin run locally or remotely?

Remote. Hosted by the provider. You connect with a URL, nothing to install.

How do I add Kelvin to Claude Code?

Run: claude mcp add --transport http kelvin https://kelvin.openconverters.com/mcp

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