CalculatorLib for Claude.ai

com.calculatorlib/calculators

Year-correct, cited payroll and tax numbers for Asia (Vietnam first) plus ~8,000 calculators.

client:Claude.ai transport:streamable-http tools:5

Install CalculatorLib in Claude.ai

Settings → Connectors → Add custom connector

https://calculatorlib.com/mcp

Claude on the web takes a remote URL and completes OAuth in the browser. For a packaged server use Claude Desktop or Claude Code instead. Claude.ai docs

What Claude.ai can do once it is connected

search_calculators
get_calculator_schema
run_calculator
convert_units
solve_math

CalculatorLib in other clients

Claude Code
Claude Desktop
Cursor
VS Code
Zed
Windsurf
Cline
Gemini CLI
Grok
ChatGPT
LangChain

CalculatorLib MCP server