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Nanocalcs

Official registry AI and agents

Exact calculators (loans, dates, units, LLM tokens, API cost, VRAM) + prefilled nanocalcs.com links

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).

NPM package nanocalcs-mcp
Claude Code 
claude mcp add nanocalcs -- npx -y nanocalcs-mcp@0.2.1
JSON configuration (Claude Desktop, Cursor, VS Code) 
{
    "mcpServers": {
        "nanocalcs": {
            "command": "npx",
            "args": [
                "-y",
                "nanocalcs-mcp@0.2.1"
            ]
        }
    }
}

Frequently asked questions

What is Nanocalcs?

Exact calculators (loans, dates, units, LLM tokens, API cost, VRAM) + prefilled nanocalcs.com links

How do I install Nanocalcs?

It runs on your machine. In Claude Code: claude mcp add nanocalcs -- npx -y nanocalcs-mcp@0.2.1. For other clients, paste the JSON configuration from this page into their MCP settings.

Does Nanocalcs 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 Nanocalcs?

It is published by com.nanocalcs. 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.