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

A CVSS vector modeling and score calculation implementation for all CVSS versions by {metæffekt}.

This package give you an income tax breakdown based on a yearly salary.

Generates CRC hashes for strings - for use by node redis clients to determine key slots.

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

Calculate meta-vulnerabilities from package security advisories

NPM package with functionality to calculate Dutch Tax Income

A lightweight Jest mock for unit testing Express

Medusa Tax module

TaxJar Sales Tax API for Node

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

Everyday calculator MCP server — curated core of 15 well-scoped tools (income tax FR/US/UK/CA, mortgage, compound interest, VAT, BMI, TDEE…) with on-demand access to the full 446-calculator macalc catalog. Free, no API key.

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.

Calculate the specificity of a CSS selector

stamp duty calculator

A tiny, permissive CSS selector parser

Simple package to validate a german tax ID (Steuerindentifikationsnummer)

Financial calculators for Finanzfluss

SMS segements calculator