MCP server exposing the Calcuris tax engines — US income tax & paycheck, US property tax, Canadian provincial income tax, Australian stamp duty & income tax, UK dividend tax. Real 2026 rates, no API key.

A lightweight Jest mock for unit testing Express

Medusa Tax module

International sales tax calculator for Node (offline, but provides optional online VAT number fraud check). Tax rates are kept up-to-date.

TaxJar Sales Tax API for Node

TypeScript class that validates UK bank account details using the modulus checking algorithm.

Standard Number Validation

Your AI agent, fluent in Australian tax. MCP server with cited answers from 34,500+ ATO documents, the income tax and GST Acts and 4,900+ rulings, plus deduction, depreciation, BAS and audit-risk tools that know your tax profile.

Simple package to validate a german tax ID (Steuerindentifikationsnummer)

Tax SDK for Awaken

AITaxAdvise CLI — AI-powered tax research for coding agents. Ask tax questions, get cited legislation.

UK Postcode helper methods

Fiscal tax year calculator, retrieve the tax-year, month and week for a given date. Start date of the financial year is editable.

Typography assets for @ukic components

Finds countries by various country codes

Converts UK address fragments into a properly formatted address recognised by Royal Mail's Clear Addressing Guidelines. Maps perfectly from Royal Mails PAF database

Validate a UK bank account number against a sort code using the VocaLink modulus check

Stripe VAT id handling

The fastest NINO (UK National Insurance number) generator and validator. Generates and validates UK NI numbers to NIM39110 specifications on Gov.uk.

Model Context Protocol server for the Prometiam company data API — official registry data for Spain, France, the UK, Ireland, Poland and Norway, plus directors and UK beneficial ownership, corporate events, insolvency notices, VAT (VIES) and LEI (GLEIF) l