Working days, ISDA conventions and deadlines for 250 countries and 30 financial markets.
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First seen 31 Oct 2026. One server, whatever directories list it: each directory listing keeps its own page and history.
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Tools
| Tool | Description | Behaviour |
|---|---|---|
| add_working_days | Move N working days from a date, skipping weekends and holidays; returns the end date and every skipped day with its reason. Delivery promises, SLA clocks, payment terms in business days. Example: start_date '2026-12-23', days 5, country 'DE', subdivision 'BY'. Calendar selection: country (ISO 3166-1 alpha-2, e.g. 'SA', 'DE', 'US') or market (MIC, e.g. 'XNYS', 'XLON'); optional subdivision (state/province/emirate code from list_calendars), categories (e.g. ['public','bank']), weekend override (['FRI','SAT']), extra_holidays (company/contract dates). Weekend defaults to the country's legal weekend. Response: result plus data_confidence (high = fixed-date calendar; medium = a lunar/moon-sighted or projected holiday is involved, or the caller overrode the weekend), estimated_items[] naming each projected date, sources[] (public references behind the calendar), data_version and warnings[]. | Read-only |
| compute_deadline | Compute the end of a period ('within 30 calendar days', '10 working days', '3 months') from a start date under explicit counting rules, roll it by the chosen convention when it lands on a non-working day, and return raw vs final deadline, skipped days and a step-by-step explanation plus a disclaimer. Pass the rules the contract/law states; defaults are the common ones. Example: start_date '2026-11-26', period 7, unit 'calendar_days', country 'GB'. Calendar selection: country (ISO 3166-1 alpha-2, e.g. 'SA', 'DE', 'US') or market (MIC, e.g. 'XNYS', 'XLON'); optional subdivision (state/province/emirate code from list_calendars), categories (e.g. ['public','bank']), weekend override (['FRI','SAT']), extra_holidays (company/contract dates). Weekend defaults to the country's legal weekend. Response: result plus data_confidence (high = fixed-date calendar; medium = a lunar/moon-sighted or projected holiday is involved, or the caller overrode the weekend), estimated_items[] naming each projected date, sources[] (public references behind the calendar), data_version and warnings[]. | Read-only |
| is_working_day | Say whether a date is a working day in a country/subdivision or market, and why not (weekend, holiday name, holiday observed, projected lunar holiday). Example: date '2027-03-10', country 'SA'. Calendar selection: country (ISO 3166-1 alpha-2, e.g. 'SA', 'DE', 'US') or market (MIC, e.g. 'XNYS', 'XLON'); optional subdivision (state/province/emirate code from list_calendars), categories (e.g. ['public','bank']), weekend override (['FRI','SAT']), extra_holidays (company/contract dates). Weekend defaults to the country's legal weekend. Response: result plus data_confidence (high = fixed-date calendar; medium = a lunar/moon-sighted or projected holiday is involved, or the caller overrode the weekend), estimated_items[] naming each projected date, sources[] (public references behind the calendar), data_version and warnings[]. | Read-only |
| list_calendars | Discover calendars: without arguments, all 250 countries and 30 markets; with a country code, its legal weekend, subdivision codes, holiday categories, languages, year range and public sources. Free. Example: country 'US'. Response: result plus data_confidence (high = fixed-date calendar; medium = a lunar/moon-sighted or projected holiday is involved, or the caller overrode the weekend), estimated_items[] naming each projected date, sources[] (public references behind the calendar), data_version and warnings[]. | Read-only |
| list_holidays | All holidays of a year for a country/subdivision/categories or a market, each with local and English names, whether it is observed/shifted, projected (lunar), on a weekend, and whether it counts as non-working. Example: year 2027, country 'IN', subdivision 'KA'. Calendar selection: country (ISO 3166-1 alpha-2, e.g. 'SA', 'DE', 'US') or market (MIC, e.g. 'XNYS', 'XLON'); optional subdivision (state/province/emirate code from list_calendars), categories (e.g. ['public','bank']), weekend override (['FRI','SAT']), extra_holidays (company/contract dates). Weekend defaults to the country's legal weekend. Response: result plus data_confidence (high = fixed-date calendar; medium = a lunar/moon-sighted or projected holiday is involved, or the caller overrode the weekend), estimated_items[] naming each projected date, sources[] (public references behind the calendar), data_version and warnings[]. | Read-only |
| next_holiday | The next N holidays on or after a date with days_until and projection flags. Example: from_date '2026-11-01', country 'JP', count 3. Calendar selection: country (ISO 3166-1 alpha-2, e.g. 'SA', 'DE', 'US') or market (MIC, e.g. 'XNYS', 'XLON'); optional subdivision (state/province/emirate code from list_calendars), categories (e.g. ['public','bank']), weekend override (['FRI','SAT']), extra_holidays (company/contract dates). Weekend defaults to the country's legal weekend. Response: result plus data_confidence (high = fixed-date calendar; medium = a lunar/moon-sighted or projected holiday is involved, or the caller overrode the weekend), estimated_items[] naming each projected date, sources[] (public references behind the calendar), data_version and warnings[]. | Read-only |
| roll_date | Apply a business-day convention (following, modified following, preceding, modified preceding) to a date on a country or market calendar — payment dates, coupon dates, settlement, SLA due dates. Example: date '2026-05-31', convention 'modified_following', market 'XLON'. Calendar selection: country (ISO 3166-1 alpha-2, e.g. 'SA', 'DE', 'US') or market (MIC, e.g. 'XNYS', 'XLON'); optional subdivision (state/province/emirate code from list_calendars), categories (e.g. ['public','bank']), weekend override (['FRI','SAT']), extra_holidays (company/contract dates). Weekend defaults to the country's legal weekend. Response: result plus data_confidence (high = fixed-date calendar; medium = a lunar/moon-sighted or projected holiday is involved, or the caller overrode the weekend), estimated_items[] naming each projected date, sources[] (public references behind the calendar), data_version and warnings[]. | Read-only |
| working_days_between | Count working days between two dates with endpoint control; lists the non-working days. Leave cost, lateness, elapsed business days. Example: '2026-05-18' → '2026-06-05', country 'AE', inclusive 'both'. Calendar selection: country (ISO 3166-1 alpha-2, e.g. 'SA', 'DE', 'US') or market (MIC, e.g. 'XNYS', 'XLON'); optional subdivision (state/province/emirate code from list_calendars), categories (e.g. ['public','bank']), weekend override (['FRI','SAT']), extra_holidays (company/contract dates). Weekend defaults to the country's legal weekend. Response: result plus data_confidence (high = fixed-date calendar; medium = a lunar/moon-sighted or projected holiday is involved, or the caller overrode the weekend), estimated_items[] naming each projected date, sources[] (public references behind the calendar), data_version and warnings[]. | Read-only |
| Directory | Listing | Tier | First seen |
|---|---|---|---|
| Official MCP Registry | Business-Day Oracle | - | 31 Oct 2026 |