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calc.engineer

Official registry Other

88 free engineering calculators: RF link budgets, LoRa/Meshtastic, PCB, solar, homelab. Keyless.

Website

Install

Add this to your client's MCP configuration (Claude Desktop: claude_desktop_config.json; Cursor: .cursor/mcp.json; VS Code and others use the same "mcpServers" shape).

Remote (streamable-http)
Claude Code 
claude mcp add --transport http calc-engineer 'https://calc.engineer/mcp'
JSON configuration (Claude Desktop, Cursor, VS Code) 
{
    "mcpServers": {
        "calc-engineer": {
            "type": "http",
            "url": "https://calc.engineer/mcp"
        }
    }
}

Frequently asked questions

What is calc.engineer?

88 free engineering calculators: RF link budgets, LoRa/Meshtastic, PCB, solar, homelab. Keyless.

How do I install calc.engineer?

It runs as a remote server. In Claude Code: claude mcp add --transport http calc-engineer 'https://calc.engineer/mcp'. For other clients, paste the JSON configuration from this page into their MCP settings.

Does calc.engineer need an API key?

Its registry entry lists no required key or secret. Some features may still need an account with the service it connects to.

Who maintains calc.engineer?

It is published by engineer.calc. AI.tn lists it but does not maintain or endorse it.

From the official MCP Registry. Listing is not an endorsement: review a server's code and permissions before giving it access to your data.