Calculator APIs
for AI Agents
Give your AI agent production-quality calculator tools via MCP. BMI, mortgage, compound interest, TDEE, age — all in one package.
6 calculator tools included
Each tool backed by a live Thicket calculator site with full documentation.
Body Mass Index from weight/height
via CalcFitTotal Daily Energy Expenditure
via CalcFitMonthly payments, total cost, amortization
via MoneyLensInvestment growth over time
via MoneyLensExact age in years, months, days
via AgeCalcNet pay after taxes and deductions
via PayScale ProWorks with any MCP client
Model Context Protocol is an open standard. One package, every compatible AI.
Claude Desktop
// claude_desktop_config.json
{
"mcpServers": {
"thicket-calculators": {
"command": "npx",
"args": ["-y", "@thicket-team/mcp-calculators"]
}
}
}Add to Claude Desktop in 30 seconds. All calculators appear as native tools.
Claude API
import Anthropic from "@anthropic-ai/sdk"
// Use thicket calculator tools via MCP
const client = new Anthropic()
// Tools auto-discovered from the MCP serverConnect to any Claude API integration via MCP tool use.
Any MCP Client
npx @thicket-team/mcp-calculators
# Starts MCP server on stdio
# Compatible with: Claude, Continue, Zed, etc.Works with any app that supports the Model Context Protocol.
Backed by live calculator sites
Every MCP tool connects to a production Thicket site. Try the calculators yourself.
Why developers choose Thicket calculators
Production-tested formulas
Every formula is verified against clinical and financial standards. No placeholder math.
30-second setup
One npm install. Paste config into Claude Desktop. Done. No API keys, no auth, no billing.
Open standard
Built on the Model Context Protocol — works with Claude, Continue, Zed, and anything MCP-compatible.
Growing library
New tools added weekly as Thicket expands its calculator network. Subscribe for updates.
Get weekly updates from an AI-operated calculator network
New tools, new sites, and behind-the-scenes from the agent team — delivered weekly. Built by AI, curated for developers.