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8 clients · secrets stay placeholders

JSON (mcpServers)Claude CodeCodexOpenCodeCursorVS CodeGemini CLIGoose

{
  "mcpServers": {
    "date-math": {
      "type": "http",
      "url": "https://date-math.datemath.workers.dev/mcp"
    }
  }
}

claude mcp add --transport http date-math https://date-math.datemath.workers.dev/mcp

[mcp_servers.date-math]
url = "https://date-math.datemath.workers.dev/mcp"

{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "date-math": {
      "type": "remote",
      "url": "https://date-math.datemath.workers.dev/mcp",
      "enabled": true
    }
  }
}

{
  "mcpServers": {
    "date-math": {
      "type": "http",
      "url": "https://date-math.datemath.workers.dev/mcp"
    }
  },
  "deeplink": "cursor://anysphere.cursor-deeplink/mcp/install?name=date-math&config=eyJ0eXBlIjoiaHR0cCIsInVybCI6Imh0dHBzOi8vZGF0ZS1tYXRoLmRhdGVtYXRoLndvcmtlcnMuZGV2L21jcCJ9"
}

{
  "servers": {
    "date-math": {
      "type": "http",
      "url": "https://date-math.datemath.workers.dev/mcp"
    }
  }
}

{
  "mcpServers": {
    "date-math": {
      "httpUrl": "https://date-math.datemath.workers.dev/mcp"
    }
  }
}

extensions:
  "date-math":
    enabled: true
    name: "date-math"
    type: streamable_http
    uri: "https://date-math.datemath.workers.dev/mcp"
    timeout: 300

Quality 81 / 100new

protocol75 · weight 25

warn
protocol.modernnewest supported version is 2025-11-25; 2026-07-28 not supported, older versions are deprecated until 2027-07-28
n/a
protocol.statelessonly applies to 2026-07-28 servers
pass
protocol.transportstreamable HTTP
n/a
protocol.list_ttlonly applies to 2026-07-28 servers

authorizationn/a · weight 15

n/a
auth.prm, auth.as_metadata, auth.cimdno remote uses OAuth
n/a
auth.secret_in_urlno templated URL

tool hygiene86 · weight 30

pass
tools.descriptionsevery tool has a description
pass
tools.description_lengthdescriptions are concise
pass
tools.schemasevery tool has an object input schema
pass
tools.annotations13 of 13 tools declare readOnlyHint or destructiveHint
fail
tools.directory_hintsno tool declares all four of readOnlyHint, destructiveHint, idempotentHint and openWorldHint; missing: date_add (destructiveHint); public_holidays (destructiveHint); parse_date_text (destructiveHint); …
pass
tools.token_costabout 3,639 tokens to load every tool
pass
tools.api_dumptools are not a one-to-one API dump

stabilityn/a · weight 15

n/a
stability.changes, stability.rug_pulltool history recorded for 0 of the 7 days needed

dependenciesn/a · weight 15

n/a
deps.known_vulns, deps.mcp_sdk_version, deps.resolvabledependencies not resolved yet

13 tools, about 3,639 tokens to load them all · tool set 2a43d608648f · tools last changed 2026-11-07 · checked 2026-11-07 17:28 UTC

Tool changes

2026-11-07pay_datesadded
Upcoming pay or billing dates for monthly, semi-monthly (e.g. 15th and last day), biweekly or weekly schedules, moved off weekends and public holidays (to the previous, next or nearest business day). Use for payroll calendars, invoice due dates and recurring billing. First 25 calls per day are free, then $0.001 per call (x402).
2026-11-07business_dayadded
Is a date a business day? If not, why (weekend, or which public holiday). Also the next and previous business day, and the month's business-day count, first and last business day. Use for office-open checks, shipping cut-offs, settlement dates. Country holidays, custom holidays and custom workweeks (e.g. Sun–Thu, Mon–Sat). First 25 calls per day are free, then $0.001 per call (x402).
2026-11-07business_hours_deadlinechangeddescription
before
SLA math in working hours: the deadline N business hours after a start time, or business time elapsed between two times. Custom hours and workdays, holidays, country public holidays, DST-aware. Costs $0.001 per call (x402).
after · 65% of words in common
SLA math in working hours: the deadline N business hours after a start time, or business time elapsed between two times. Use for support-ticket SLAs, response-time targets and office-hours deadlines. Custom hours and workdays, holidays, country public holidays, DST-aware. First 25 calls per day are free, then $0.001 per call (x402).
2026-11-07recurring_dateschangeddescription
before
Expand an iCalendar RRULE ("every 2nd Tuesday", "Mon/Wed until June") into concrete dates and times in a time zone, DST-aware, with optional excluded dates. Costs $0.001 per call (x402).
after · 60% of words in common
Expand a recurring event or iCalendar RRULE ("every 2nd Tuesday", "Mon/Wed until June") into concrete dates and times in a time zone, DST-aware, with optional excluded dates. Use for repeating meetings, calendar invites and schedules. First 25 calls per day are free, then $0.001 per call (x402).
2026-11-07city_timechangeddescription
before
Find the IANA time zone and current local time for up to 10 cities by name ("Cebu", "São Paulo", "Springfield" + country). 7,000+ cities. Costs $0.001 per call (x402).
after · 61% of words in common
Find the time zone and current local time in up to 10 cities by name ("Cebu", "São Paulo", "Springfield" + country). 7,000+ cities. Use for "what time is it in" questions and to get the IANA zone the other tools need. First 25 calls per day are free, then $0.001 per call (x402).
2026-11-07parse_date_textchangeddescription
before
Resolve natural-language dates like "next Friday at 3pm", "in 2 weeks" or "Dec 25 to Jan 2" to exact datetimes, relative to a reference time and time zone. Costs $0.001 per call (x402).
after · 57% of words in common
Parse natural-language dates and relative times like "next Friday at 3pm", "in 2 weeks", "tomorrow morning" or "Dec 25 to Jan 2" into exact ISO datetimes, relative to a reference time and time zone. Use before acting on any date a user typed. First 25 calls per day are free, then $0.001 per call (x402).
2026-11-07cron_schedulechangeddescription
before
Explain a cron expression in plain English and list its next run times in any time zone. Costs $0.001 per call (x402).
after · 55% of words in common
Explain a cron expression in plain English and list its next run times in any time zone. Use to check or debug crontab and scheduled-job schedules. First 25 calls per day are free, then $0.001 per call (x402).
2026-11-07working_hours_overlapchangeddescription
before
Find when working hours overlap across time zones (meeting windows). Per-participant hours optional; skips weekends by default; up to 14 days. Costs $0.001 per call (x402).
after · 57% of words in common
Find when working hours overlap across time zones: the best meeting times for a distributed or remote team. Per-participant hours optional; skips weekends by default; up to 14 days. First 25 calls per day are free, then $0.001 per call (x402).
2026-11-07public_holidayschangeddescription
before
Public holidays for a country and year: 207 countries, 2000–2050. Lunar or government-proclaimed dates are rule-based estimates. Costs $0.001 per call (x402).
after · 57% of words in common
List public holidays (bank holidays, national holidays) for a country and year: 207 countries, 2000–2050. Use for holiday calendars, office closures and checking if a date is a holiday. Lunar or government-proclaimed dates are rule-based estimates. First 25 calls per day are free, then $0.001 per call (x402).
2026-11-07date_infochangeddescription
before
Calendar facts for a date: weekday, ISO week, quarter, day of year, leap year, weekend. Costs $0.001 per call (x402).
after · 51% of words in common
Calendar facts for a date: day of the week, ISO week number, quarter, day of year, leap year, weekend. Use for "what day is", week numbers and fiscal quarters. First 25 calls per day are free, then $0.001 per call (x402).

Showing the latest 10. Full history: list_changes · trend: quality JSON.

Checks run on what our credential-free, read-only probes observe; tools are never called and no code audit is performed. How it is computed.

Trust 97 / 100

provenance90

liveness100

freshness100

hygiene100

+repository +namespace-matches-repo +website +reachable +uptime-100% +updated-0d-ago

Derived from observable signals (official registry feed and our own credential-free probes); no code audit performed. How it is computed.

Dependencies

[email protected] npmnot resolved yet; dependencies are read once a day

Dependency graphs from deps.dev; advisories from OSV.dev, including the GitHub Advisory Database and the PyPI Advisory Database; all CC BY 4.0. The graph is what a clean install of this version resolves today; nothing was installed or run. How it is checked.

Endpoints

remote	auth	reachable	uptime 30d	p50	protocol	last ok
`https://date-math.datemath.workers.dev/mcp` streamable-http	none	yes	100%	513 ms	2025-11-25	2026-11-07

package	registry	version	runtime	secrets
`date-math-mcp`	npm	1.5.0	–	`DATE_MATH_PRIVATE_KEY`

Tools (13)

`business_day`read-only	Is a date a business day? If not, why (weekend, or which public holiday). Also the next and previous business day, and the month's business-day count, first and last business day. Use for office-open checks, shipping cut-offs, settlement dates. Country holidays, custom holidays and custom workweeks (e.g. Sun–Thu, Mon–Sat). First 25 calls per day are free, then $0.001 per call (x402).
`business_hours_deadline`read-only	SLA math in working hours: the deadline N business hours after a start time, or business time elapsed between two times. Use for support-ticket SLAs, response-time targets and office-hours deadlines. Custom hours and workdays, holidays, country public holidays, DST-aware. First 25 calls per day are free, then $0.001 per call (x402).
`city_time`read-only	Find the time zone and current local time in up to 10 cities by name ("Cebu", "São Paulo", "Springfield" + country). 7,000+ cities. Use for "what time is it in" questions and to get the IANA zone the other tools need. First 25 calls per day are free, then $0.001 per call (x402).
`cron_schedule`read-only	Explain a cron expression in plain English and list its next run times in any time zone. Use to check or debug crontab and scheduled-job schedules. First 25 calls per day are free, then $0.001 per call (x402).
`date_add`read-only	Add or subtract years/months/weeks/days/business days/hours/minutes/seconds from a date. Month-end clamping; business days skip weekends, given holidays, and the public holidays of an optional country. Use for due dates, deadlines, delivery estimates, expiry and "N working days from today". First 25 calls per day are free, then $0.001 per call (x402).
`date_diff`read-only	How many days, weeks, months or business days between two dates or datetimes: calendar (Y/M/D), totals, and business days (weekdays in [from, to) minus holidays; pass country to exclude its public holidays). Use for age, tenure, countdowns, notice periods and working days until a deadline. First 25 calls per day are free, then $0.001 per call (x402).
`date_info`read-only	Calendar facts for a date: day of the week, ISO week number, quarter, day of year, leap year, weekend. Use for "what day is", week numbers and fiscal quarters. First 25 calls per day are free, then $0.001 per call (x402).
`parse_date_text`read-only	Parse natural-language dates and relative times like "next Friday at 3pm", "in 2 weeks", "tomorrow morning" or "Dec 25 to Jan 2" into exact ISO datetimes, relative to a reference time and time zone. Use before acting on any date a user typed. First 25 calls per day are free, then $0.001 per call (x402).
`pay_dates`read-only	Upcoming pay or billing dates for monthly, semi-monthly (e.g. 15th and last day), biweekly or weekly schedules, moved off weekends and public holidays (to the previous, next or nearest business day). Use for payroll calendars, invoice due dates and recurring billing. First 25 calls per day are free, then $0.001 per call (x402).
`public_holidays`read-only	List public holidays (bank holidays, national holidays) for a country and year: 207 countries, 2000–2050. Use for holiday calendars, office closures and checking if a date is a holiday. Lunar or government-proclaimed dates are rule-based estimates. First 25 calls per day are free, then $0.001 per call (x402).
`recurring_dates`read-only	Expand a recurring event or iCalendar RRULE ("every 2nd Tuesday", "Mon/Wed until June") into concrete dates and times in a time zone, DST-aware, with optional excluded dates. Use for repeating meetings, calendar invites and schedules. First 25 calls per day are free, then $0.001 per call (x402).
`timezone_convert`read-only	Convert a time between time zones (IANA names like Asia/Manila, America/New_York), DST-aware. Use for "what time is 3pm Manila in New York", scheduling across zones and UTC offsets. First 25 calls per day are free, then $0.001 per call (x402).
`working_hours_overlap`read-only	Find when working hours overlap across time zones: the best meeting times for a distributed or remote team. Per-participant hours optional; skips weekends by default; up to 14 days. First 25 calls per day are free, then $0.001 per call (x402).

Schemas: list_tools.

Similar MCP servers

Official server.json

{
  "name": "io.github.JowenDelaPena/date-math",
  "title": "Date Math",
  "$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
  "remotes": [
    {
      "url": "https://date-math.datemath.workers.dev/mcp",
      "type": "streamable-http"
    }
  ],
  "version": "1.5.0",
  "packages": [
    {
      "version": "1.5.0",
      "transport": {
        "type": "stdio"
      },
      "identifier": "date-math-mcp",
      "registryType": "npm",
      "environmentVariables": [
        {
          "name": "DATE_MATH_PRIVATE_KEY",
          "isSecret": true,
          "description": "Optional. Key of a wallet holding USDC on Base, to pay $0.001 per call after the 25 free daily calls."
        },
        {
          "name": "DATE_MATH_MAX_PRICE",
          "description": "Optional. The most to pay for one call (default $0.001)."
        }
      ]
    }
  ],
  "repository": {
    "url": "https://github.com/JowenDelaPena/date-math",
    "source": "github"
  },
  "websiteUrl": "https://github.com/JowenDelaPena/date-math",
  "description": "Date/time math for agents: business days, holidays, time zones, cron, RRULE. 25 free calls/day."
}