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OIYO Korea Calculators MCP

v1.3.3 changelog · 2

io.github.yuli3/oiyo-calculations

Korean personal tax, payroll, labor, real estate and calendar calculators. Code, no LLM.

transport:streamable-http tools:26

Target client

run in your project directory

claude mcp add --transport http oiyo-calculations https://api-oiyo.861106.workers.dev/mcp

setup guides: Claude Code Claude Desktop Cursor VS Code Zed Windsurf Cline Gemini CLI Grok ChatGPT Claude.ai LangChain

Adds it for this project only. Append --scope user to make it available everywhere. Claude Code docs

get_kr_minimum_wage Read-only

get kr minimum wage

get_kr_holidays Read-only

get kr holidays

check_kr_business_day Read-only

check kr business day

calculate_saju_astrology

calculate saju astrology

calculate_unemployment_benefits

calculate unemployment benefits

calculate_weekly_allowance

calculate weekly allowance

calculate_overtime_pay

calculate overtime pay

calculate_net_salary

calculate net salary

calculate_severance_pay

calculate severance pay

calculate_annual_leave

calculate annual leave

calculate_military_service

calculate military service

calculate_gas_bill

calculate gas bill

convert_units

convert units

calculate_cagr

calculate cagr

calculate_compound_interest

calculate compound interest

calculate_health_insurance

calculate health insurance

diagnose_hug_guarantee

diagnose hug guarantee

calculate_capital_gains_tax

calculate capital gains tax

compare_vat_tax

compare vat tax

calculate_inheritance_gift_tax

calculate inheritance gift tax

calculate_loan_refinance

calculate loan refinance

calculate_card_tax_deduction

calculate card tax deduction

calculate_kr_year_end_settlement

calculate kr year end settlement

calculate_kr_freelancer_income_tax

calculate kr freelancer income tax

calculate_kr_acquisition_tax

calculate kr acquisition tax

calculate_kr_property_tax

calculate kr property tax

All 26 tools, one page each

Mutating and Read-only are read off each tool's name, not its schema — a hint, not a guarantee. Check the server's own documentation before granting access.