All servers · Agent payments (x402)

Everyday agent tools

si.fourzerotwo/tools · v1.0.1

Measured by MCP Station

Description written by the publisher, not verified

Time zones and world business days, VAT rates and maths, currency conversion, UK business days…

Connect

claude mcp add --transport http tools https://fourzerotwo.si/mcp/v/tools

{
  "mcpServers": {
    "tools": {
      "url": "https://fourzerotwo.si/mcp/v/tools"
    }
  }
}

Tools as reported by the server

• calculators__uk-business-days
  Is a date a UK business day; add or subtract N business days; count business days between dates. Uses official bank holidays per nation. Free within the daily allowance, then $0.001 USDC per call via x402.
• calculators__postcode-distance
  Straight-line distance (km and miles) and compass bearing between two UK postcodes. Free within the daily allowance, then $0.002 USDC per call via x402.
• calculators__currency-convert
  Convert between ~30 currencies at the ECB reference rate for today or any date in the last 90 days. Free within the daily allowance, then $0.001 USDC per call via x402.
• time__convert
  Convert a wall-clock time from one IANA zone to another; says when it is ambiguous (clocks go back) or never happens (clocks go forward). Free within the daily allowance, then $0.001 USDC per call via x402.
• time__now
  Local time, UTC, offset, abbreviation, DST flag, weekday and ISO week for a zone. Free within the daily allowance, then $0.001 USDC per call via x402.
• time__zone-info
  Offset, abbreviation and DST at a moment, plus the next clock change, for an IANA zone. Free within the daily allowance, then $0.001 USDC per call via x402.
• time__business-days
  Count business days between two dates, or add business days to a date, skipping weekends and the country's public holidays. Free within the daily allowance, then $0.001 USDC per call via x402.
• time__signed
  Server UTC time and a request id. The cheapest paid endpoint: use it to test an x402 payment end to end. Costs $0.001 USDC per call via x402.
• uk-bank-holidays__all
  Every published UK bank holiday by division. Free within the daily allowance, then $0.001 USDC per call via x402.
• uk-bank-holidays__england-and-wales
  Bank holidays in England and Wales. Free within the daily allowance, then $0.001 USDC per call via x402.
• uk-bank-holidays__scotland
  Bank holidays in Scotland. Free within the daily allowance, then $0.001 USDC per call via x402.
• uk-bank-holidays__northern-ireland
  Bank holidays in Northern Ireland. Free within the daily allowance, then $0.001 USDC per call via x402.
• vat__rates
  Standard, reduced and super-reduced VAT rates for one country or all of EU27 + UK, with the date they were checked. Free within the daily allowance, then $0.001 USDC per call via x402.
• vat__calculate
  Net to gross or gross to net at a given rate, or at a country's standard rate. Free within the daily allowance, then $0.001 USDC per call via x402.
• vat__validate-format
  Country format and check digit for UK (GB/XI) and EU VAT numbers. Does not confirm registration. Free within the daily allowance, then $0.001 USDC per call via x402.
• holidays__year
  Official public holidays for a country (or region provider, e.g. Germany/Bavaria) in a year. Free within the daily allowance, then $0.001 USDC per call via x402.
• holidays__check
  Is a date a public holiday or business day in a country; add N business days; next business day. Free within the daily allowance, then $0.001 USDC per call via x402.
• holidays__countries
  Every country and regional provider supported. Free within the daily allowance, then $0.0005 USDC per call via x402.

Website · JSON · Text for agents · Registry updated 2026-10-11