Weekness — Week & Calendar Utilities
Need to work with ISO week numbers in your LLM workflows? This server gives you eight calendar operations: get current date or week, convert timestamps to ISO weeks, map week numbers back to date ranges, do week arithmetic with add_weeks and weeks_between, and look up weekday names or find the nearest occurrence of a specific weekday. It handles ISO 8601 timestamps, plain dates, and week strings like 2024-W15. Runs over stdio via Docker or a Go binary. Useful when you're building scheduling tools, processing time-series data bucketed by week, or just need reliable date math without reimplementing ISO week logic.
- tools
- 8
- transport
- STDIO
- last updated
- Jun 3, 2026
Tools
8 toolsPublic tool metadata for what this MCP can expose to an agent.
current_dateGet today's date (YYYY-MM-DD) and weekday name
Get today's date (YYYY-MM-DD) and weekday name
No parameter schema in public metadata yet.
current_weekGet today's ISO week year, week number, week string, and weekday name
Get today's ISO week year, week number, week string, and weekday name
No parameter schema in public metadata yet.
timestamp_to_weekConvert a date or timestamp to its ISO week number and week string
Convert a date or timestamp to its ISO week number and week string
No parameter schema in public metadata yet.
week_to_datesGet the Monday start date and Sunday end date for an ISO year and week number
Get the Monday start date and Sunday end date for an ISO year and week number
No parameter schema in public metadata yet.
add_weeksAdd or subtract weeks from a date or week string
Add or subtract weeks from a date or week string
No parameter schema in public metadata yet.
weeks_betweenCalculate the number of weeks between two dates
Calculate the number of weeks between two dates
No parameter schema in public metadata yet.
weekday_of_dateGet the weekday name for a given date
Get the weekday name for a given date
No parameter schema in public metadata yet.
nearest_weekdayFind the nearest past or future occurrence of a given weekday
Find the nearest past or future occurrence of a given weekday
No parameter schema in public metadata yet.
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Weekness MCP Server
An MCP (Model Context Protocol) server that provides week and calendar helper tools for converting between dates and ISO weeks, performing week arithmetic, and looking up weekday names.
Tools
- current_date: Get today's date (YYYY-MM-DD) and weekday name
- current_week: Get today's ISO week year, week number, week string, and weekday name
- timestamp_to_week: Convert a date or timestamp to its ISO week number and week string
- week_to_dates: Get the Monday start date and Sunday end date for an ISO year and week number
- add_weeks: Add or subtract weeks from a date or week string
- weeks_between: Calculate the number of weeks between two dates
- weekday_of_date: Get the weekday name for a given date
- nearest_weekday: Find the nearest past or future occurrence of a given weekday
Installation
Docker
docker run --rm -i ghcr.io/dvdksn/weekness:latest
Build from source
go build -o weekness .
Usage
Details
- Repository
- github.com/dvdksn/weekness
- Category
- Productivity & Office
- Package
ghcr.io/dvdksn/weekness:1.0.0- Transport
- STDIO
- Registry
- MCP registry, active
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