# macalc

> Use this tool when you need to perform various calculations across multiple categories, including finance, health, and science, with support for different countries' tax systems. It solves problems such as converting units, calculating taxes, and making financial estimates, providing a comprehensive set of 501 tools with simple HTTP input and output. Ideal for everyday calculations, it offers a free and streamlined interface with no API key required.

Canonical page: https://skillsregistry.net/skills/tresor4k-macalc-mcp  
JSON: https://api.skillsregistry.net/v1/skills/tresor4k-macalc-mcp

## Description

The most comprehensive everyday calculator MCP server — 501 tools across 22 categories covering 8 countries' tax systems (FR, BE, CH, CA, US, UK, MA, SN). Finance, health, math, science, construction, conversions, education, sport, cooking, travel, and more. Free, no API key required. Streamable HTTP transport.

## Trust

- **Trust score (0–1):** 0.92
- **Verification tier:** verified
- **Last scanned:** 2026-09-28

## Facts

- **Version:** 1.0.0
- **Skill type:** atomic
- **Execution layer:** mcp-remote
- **Runtime environment:** api
- **Category:** finance
- **Updated:** 2026-09-28

## Source

- **Source listing:** [Glama](https://glama.ai/mcp/servers/eejckwxufz)
- **Repository:** <https://github.com/tresor4k/macalc-mcp>

## Use it

Resolve this record through the SkillsRegistry MCP server (no auth, read-only):

```
claude mcp add --transport http --scope user skillsregistry https://api.skillsregistry.net/mcp
```

```json
{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "tools/call",
  "params": {
    "name": "get_skill",
    "arguments": {
      "slug": "tresor4k-macalc-mcp"
    }
  }
}
```

REST: `GET https://api.skillsregistry.net/v1/skills/tresor4k-macalc-mcp` · pull for local use: `GET https://api.skillsregistry.net/v1/skills/tresor4k-macalc-mcp/pull`

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SkillsRegistry indexes agent skills from public registries and GitHub. Skills we have analysed are scanned with Circle-IR and scored on six dimensions; each listing states its scan coverage. More: https://skillsregistry.net/llms.txt