Everyday agent tools

si.fourzerotwoPublished by fourzerotwo.siOfficial publisherv1.0.1Updated Oct 24, 2026

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

The publisher's own server: fourzerotwo

VerifiedStreamable HTTPWeb executableLocation & Lifestyle Productivity & Workflow Finance

Server details

Identifier: si.fourzerotwo/tools
Transport: Streamable HTTP
Runtime: Web executable
Trust: Verified
Published: Oct 11, 2026

Security note

MCP servers receive tool arguments from a conversation and may perform external actions. Review what a server can do before you enable it, and give it only the access it needs.

The registry verified that this server's namespace belongs to fourzerotwo.si, which also runs its endpoint. That identifies the publisher; it does not make the server's tools safe.

SourceWeft's checks cover whether the listing is complete and the endpoint answered; they do not review the server's code or what its tools do.

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Overview

AI-generated overview

A remote MCP server of everyday reference calculators: time zones, business days, public holidays, VAT rates and maths, currency conversion and UK postcode and

What you can do: Convert times between IANA zones, get current local time, offsets, DST status and next clock changes, and count or add business days with public holidays skipped for a chosen country or region provider, including UK nations and Germany/Bavaria. Look up UK bank holidays by division and official public holidays by country and year, and list the supported countries and regional providers. Get standard, reduced and super-reduced VAT rates for the EU27 and UK, calculate net to gross or gross to net, and check the format and check digit of UK and EU VAT numbers. Convert between about 30 currencies at the ECB reference rate for today or any date in the last 90 days. Compute straight-line distance,
When to use it: Useful when an assistant needs reliable date, holiday, time-zone, VAT or currency arithmetic rather than guessing, for example scheduling around public holidays, converting a meeting time between zones, or checking a VAT rate or invoice amount.
Requirements: A remote streamable HTTP endpoint; no local runtime or package. An optional free X-API-Key header raises the free allowance from 100 to 500 calls per day. Beyond the daily allowance, calls are paid per use in USDC via x402.

Before you install

Calls beyond the free daily allowance cost money in USDC via x402, so usage can spend funds. The VAT format check does not confirm registration. Holiday and rate data is reference data and may not suit legal or tax filing purposes without verification.

Installation

In SourceWeft

Open Everyday agent tools in the dashboard and add it to a workspace.
Enable the server for the chats that should use its tools.

Web executable via Streamable HTTP. Remote servers run from the web runtime once configured in a workspace.

Use with an agent

Paste this prompt into Claude Code, Codex, Cursor or another agent — or into SourceWeft chat. The agent reads this server's install guide, shows you its publisher, endpoint and sign-in, and adds it to your client once you agree. Keys never go into a command.

Read https://sourceweft.com/mcp/si.fourzerotwo%2Ftools/install.md and connect the MCP server it describes to my client. Before changing any config, show me its publisher, endpoint and sign-in method and wait for my OK. Never put an API key in a command or in a file I would commit; ask me where it should come from.

Read the install guide the agent follows

Other MCP clients

Add this to your client's mcpServers config.

{
  "mcpServers": {
    "everyday-agent-tools": {
      "type": "http",
      "url": "https://fourzerotwo.si/mcp/v/tools"
    }
  }
}

Tools

calculators__uk-business-days

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.

Parametersadddaterequireduntilnation

calculators__postcode-distance

Calculators: Distance between postcodes

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.

Parameterstorequiredfromrequired

calculators__currency-convert

Calculators: Currency conversion

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.

Parameterstorequireddatefromrequiredamount

time__convert

Time Zones & Business Days: Convert a local time between zones

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.

Parameterstorequiredfromrequiredtimerequired

time__now

Time Zones & Business Days: Current time in a zone

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.

Parameterszone

time__zone-info

Time Zones & Business Days: Time zone facts

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.

Parametersatzonerequired

time__business-days

Time Zones & Business Days: Business days (any country)

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.

Parameterstodaysfromrequiredcountryrequired

time__signed

Time Zones & Business Days: Paid test call

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.

Takes no parameters.

uk-bank-holidays__all

UK Bank Holidays: All bank holidays

Every published UK bank holiday by division. Free within the daily allowance, then $0.001 USDC per call via x402.

Takes no parameters.

uk-bank-holidays__england-and-wales

UK Bank Holidays: England & Wales

Bank holidays in England and Wales. Free within the daily allowance, then $0.001 USDC per call via x402.

Takes no parameters.

uk-bank-holidays__scotland

UK Bank Holidays: Scotland

Bank holidays in Scotland. Free within the daily allowance, then $0.001 USDC per call via x402.

Takes no parameters.

uk-bank-holidays__northern-ireland

UK Bank Holidays: Northern Ireland

Bank holidays in Northern Ireland. Free within the daily allowance, then $0.001 USDC per call via x402.

Takes no parameters.

vat__rates

VAT Rates & Checks: 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.

Parameterscountry

vat__calculate

VAT Rates & Checks: Add or remove VAT

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.

Parametersfromrateamountrequiredcountry

vat__validate-format

VAT Rates & Checks: Validate a VAT number 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.

Parametersvat_numberrequired

holidays__year

World Public Holidays: Holidays in a 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.

Parametersyearcountryrequired

holidays__check

World Public Holidays: Holiday & business-day 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.

Parametersadddaterequiredcountryrequired

holidays__countries

World Public Holidays: Supported countries

Every country and regional provider supported. Free within the daily allowance, then $0.0005 USDC per call via x402.

Takes no parameters.

Version history

v1.0.1LatestOct 11, 2026

Score

83% of the applicable checks met

How complete this listing is, computed from the registry entry, the endpoint and public sources. Not a rating of the server and not a statement that it is safe or working today: reachability is a dated check, and no installs or reviews go into the score.

Reached in the last 30 daysRequired25 pts
Auth declaredRequired10 pts
Tools listedRequired15 pts
DescriptionRequired15 pts
Logo10 pts
Documentation15 pts
Declare a GitHub repository with a README, or serve resource_documentation in the OAuth protected-resource metadata.
LicenseNot applicable
A hosted service is used under its provider's terms, so no license is expected here. This check is left out of the percentage.