margin_of_error — BoringToolsKit MCP Tool
margin_of_error
(margin of error) is one of 36 tools on the
BoringToolsKit
MCP server. Connect the server and your client discovers it on the handshake.
by client
How to call margin_of_error from your client
- Claude Code BoringToolsKit margin_of_error run in your project directory
- Claude Desktop BoringToolsKit margin_of_error ~/Library/Application Support/Claude/claude_desktop_config.json
- Cursor BoringToolsKit margin_of_error ~/.cursor/mcp.json
- VS Code BoringToolsKit margin_of_error .vscode/mcp.json
- Zed BoringToolsKit margin_of_error ~/.config/zed/settings.json
- Windsurf BoringToolsKit margin_of_error ~/.codeium/windsurf/mcp_config.json
- Cline BoringToolsKit margin_of_error ~/Library/Application Support/Code/User/globalStorage/saoudrizwan.claude-dev/settings/cline_mcp_settings.json
- Gemini CLI BoringToolsKit margin_of_error ~/.gemini/settings.json
- Grok BoringToolsKit margin_of_error .mcp.json (in your project root)
- ChatGPT BoringToolsKit margin_of_error Settings → Connectors → Advanced → Developer mode
- Claude.ai BoringToolsKit margin_of_error Settings → Connectors → Add custom connector
- LangChain BoringToolsKit margin_of_error pip install langchain-mcp-adapters
Fastest route
claude mcp add --transport http boringtoolskit https://boringtoolskit.com/mcpOther tools on this server
- tip_bill_split
- discount_percent_off
- bmi
- bmr_tdee
- mortgage_payment
- auto_loan
- compound_interest
- savings_growth
- simple_interest
- calorie
- percentage
- square_footage
- apy
- win_loss_percentage
- slope
- rule_of_72
- cagr
- remainder
- combinations
- va_mortgage
- gross_rent_multiplier
- emergency_fund
- dividend_reinvestment
- budget_50_30_20
- growing_degree_day
- insulation
- roofing
- maintenance_calories
- protein_molecular_weight
- key_transposition
- audio_time_stretch
- youtube_revenue
- ceiling_tile
- boat_loan
- pressure
This list was read from the server itself, by connecting to it and calling tools/list on 14 October 2026. It is what
the server actually exposes, not what its listing claims.
Mutating and Read-only are read off each tool's name, not its schema — a hint, not a guarantee. The registry stores tool names only; connect the server for its live schemas.