MCP For Claude Marketplace
BR Business Days Calculator

BR Business Days Calculator MCP Connector for Claude

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Stop LLMs from calculating SLAs incorrectly. An local, deterministic engine that adds business days while perfectly avoiding weekends and Brazilian national holidays.

2 tools Official Updated Oct 1, 2026 Official Vinkius Partner
More Details Connect to Claude

LLMs cannot reliably calculate SLAs or business delivery times. If you ask an AI to 'add 5 business days to Feb 10th', it will frequently ignore Carnival or count a Saturday. This MCP solves this by providing a static, local-first calculation engine that perfectly handles Brazilian national holidays and weekends.

The Superpowers

  • Flawless SLA Math: Guarantee that your agents' promised delivery dates are exactly right, automatically skipping weekends and static/dynamic BR holidays.
  • Zero Latency & 100% Local: Unlike our global business-timezone-scheduler that uses the Nager.Date API, this engine uses a hardcoded Brazilian holiday list in the V8 isolate. Zero external network calls. Instant execution.
  • Absolute Determinism: Eliminates the hallucination of non-existent business days, bringing enterprise reliability to AI agents.
sla-trackingdate-mathbusiness-logicholiday-calculationschedulingtime-management

2 tools expose this connector's capabilities to your AI agent.

is_business_day

Pass the date as an ISO string (YYYY-MM-DD). The engine accounts for all Brazilian national holidays and weekends. Checks if a given date is a Brazilian business day (excludes weekends and BR national holidays)

add_business_days

Pass a starting date and the number of days to add (use negative values to subtract). The engine skips weekends and Brazilian holidays automatically. Adds or subtracts X Brazilian business days from a given date

See how to talk to your AI agent using BR Business Days Calculator.

Calculate a 10-business-day delivery SLA starting from `2024-02-09` (Brazil).

✅ **Business SLA Date:** `2024-02-27` (Skipped Carnival holidays and weekends).

Is `2024-11-15` counted as a valid business day for banking operations in Brazil?

✅ **Validation:** False. `2024-11-15` is a static Brazilian National Holiday (Republic Proclamation).

Add exactly 1 business day to `2024-03-28` (Thursday before Easter).

✅ **New Date:** `2024-04-01` (Skipped Good Friday `03-29` and the weekend).

No! It uses a statically compiled list of Brazilian national holidays.

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