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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). Finan
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.
501 calculator tools across 22 categories covering 8 countries' tax systems. Free, no API key required.
Two install modes — pick whichever your MCP client supports.
For clients with native remote MCP support (Claude Desktop ≥ 0.8, Cursor, Windsurf, VS Code MCP, etc.)
{
"mcpServers": {
"macalc": {
"url": "https://macalculatriceenligne.com/api/mcp"
}
}
}
For clients that only speak stdio, or sandboxed environments:
{
"mcpServers": {
"macalc": {
"command": "npx",
"args": ["-y", "macalc-mcp"]
}
}
}
Or with Docker:
{
"mcpServers": {
"macalc": {
"command": "docker",
"args": ["run", "-i", "--rm", "ghcr.io/tresor4k/macalc-mcp:latest"]
}
}
}
That's it. No API key, no auth, no setup.
| Country | Tools | Examples |
|---|---|---|
| 🇫🇷 France | 85+ | Income tax (IR 2026), salary gross→net, VAT, mortgage, notary fees, inheritance, retirement, unemployment, auto-entrepreneur |
| 🇧🇪 Belgium | 35+ | Precompte professionnel, bonus emploi, pension, cheques repas, droits donation |
| 🇨🇭 Switzerland | 30+ | Federal + cantonal tax, AVS/LPP, LAMal, 3rd pillar, frontalier |
| 🇨🇦 Canada/Quebec | 25+ | Federal + provincial tax, RRQ, RQAP, REER, CELI, TPS/TVQ |
| 🇺🇸 USA | 15+ | Federal income tax, FICA, state tax, 401k, HSA |
| 🇬🇧 UK | 10+ | Income tax, NI, SDLT, student loan repayment |
| 🇲🇦 Morocco | 10+ | IR, CNSS, TVA |
| 🇸🇳 Senegal | 10+ | IR, CSS, TVA |
BMI, BMR (Mifflin/Harris-Benedict), TDEE, heart rate zones (Karvonen), 1RM (Epley/Brzycki), VMA (Cooper/Luc-Léger), VO2max, race prediction (Riegel), marathon/half pace, due date (3 methods), ovulation calendar, body fat (Navy method), daily calories, macros, hydration.
Percentages (increase/decrease/ratio), averages (weighted/geometric/harmonic), Pythagoras, area (triangle/circle/rectangle/trapezoid/polygon), volume (sphere/cylinder/cone/cube), perimeter, equations (1st/2nd degree), sequences (arithmetic/geometric), fractions, statistics (mean/median/mode/std dev), GCD/LCM, base conversion.
Concrete volume & mix (B25 DTU 21), paint coverage, tile quantity, staircase dimensions (Blondel formula), insulation R-value, roof surface & slope, cable section (NF C 15-100), beam dimensioning (Eurocode 5), gravel/sand tonnage, wallpaper rolls, plasterboard sheets.
Ohm's law, Newton's laws, pH calculation, dilution (C1V1=C2V2), density, radioactive decay, speed of sound, ideal gas law, molar mass, concentration.
Temperature, distance, weight, volume, speed, pressure, energy, data storage, cooking units, shoe sizes, clothing sizes, currency.
Pace calculator, VMA (6 test methods), VO2max, FTP, heart rate zones, race prediction, training plan, calorie burn, hydration needs, bike gear ratio, tire pressure.
GPA calculator (French bac/brevet system), weighted average, statistics, derivatives, combinatorics, probability distributions.
Rental yield (gross/net/net-net), Pinel tax reduction, PTZ eligibility, DPE energy class, Carrez surface, notary fees by department, loan comparison.
Recipe nutrition calculator, baking conversions, glycemic load, caffeine intake, daily vitamins, unit conversions (cups/ml/oz).
Luggage weight calculator, jet lag recovery, travel budget, voltage adapters, sun exposure time.
Dog/cat food calculator, pet age converter (corrected formula), aquarium volume, breeding due date.
Sunrise/sunset, moon phase, solar panel output, wind chill, heat index, carbon sequestration.
Fabric yardage, knitting yarn calculator, ring/bra/hat size converters.
| Property | Value |
|---|---|
| Endpoint | https://macalculatriceenligne.com/api/mcp |
| Transport | Streamable HTTP (stateless) |
| Protocol | MCP v1 (@modelcontextprotocol/sdk ^1.27.1) |
| Auth | None (free, no API key) |
| Rate limit | 1,000 calls/day |
| Response format | Structured JSON with formula, source, reference URL |
| Discovery | https://macalculatriceenligne.com/.well-known/mcp/server.json |
Ask your AI assistant:
"Calculate the French income tax on 45,000€ for a single person"
The assistant calls calculate_ir_france with {revenu_net_imposable: 45000, parts: 1} and returns:
{
"impot": 4611,
"taux_effectif": "10.2%",
"taux_marginal": "30%",
"tranches": [
{"min": 0, "max": 11624, "taux": "0%", "impot": 0},
{"min": 11624, "max": 29638, "taux": "11%", "impot": 1982},
{"min": 29638, "max": 45000, "taux": "30%", "impot": 2629}
],
"source": "Article 197 CGI — Loi de finances 2026",
"reference_url": "https://macalculatriceenligne.com/finance/fiscalite/calcul-impots/"
}
Finance FR (85) Finance BE (35) Finance CH (30)
Finance CA (25) Finance US (15) Finance UK (10)
Finance MA (10) Finance SN (10) Health (30)
Sport/Running (35) Math (60) Construction (40)
Science (25) Conversions (40) Education (20)
Real Estate (15) Cooking (15) Travel (10)
Animals (8) Astronomy (8) Textile (5)
Automotive (10)
Total: 501 tools
MIT
Добавь это в claude_desktop_config.json и перезапусти Claude Desktop.
{
"mcpServers": {
"macalc": {
"command": "npx",
"args": []
}
}
}