Clio: Command Line Interface Operator for Jaz AI.
Canadian tax data and calculation functions.
Italian capital-gains/loss calculator for the Regime Dichiarativo
HMRC Making Tax Digital API client and MCP server — reusable across projects
Official TypeScript/JavaScript SDK for the E-Invoice platform — streamlining electronic invoicing and tax compliance
UK PAYE take-home pay calculator — income tax, NI, pensions, student loans
AITaxAdvise admin CLI - platform management for AI tax advisory. Tenant CRUD, user management, billing, support, audit.
Librería y CLI TypeScript libres (MIT) para VeriFactu (AEAT): huella encadenada SHA-256, QR de cotejo, verificador de cumplimiento, generación de XML (XSD oficial), envío al web service (TLS mutuo), firma XAdES y servidor MCP. Sin APIs de pago ni terceros
MCP server for AFIP — Argentine tax authority, electronic invoicing (Factura Electrónica)
Tax rate lookup provider for Medusa v2
Thin stdio MCP bridge to the Numeratica financial-planning API — add retirement, tax, and planning tools to any MCP client with npx.
Model Context Protocol (MCP) server for ELSTER (German tax portal) automation via Puppeteer. Submit UStVA, prepare EUER/ESt, sync inbox and history.
AITaxAdvise CLI — AI-powered tax research for coding agents. Ask tax questions, get cited legislation.
CLI for the Clearvo tax compliance API — submit invoices, calculate tax, validate tax numbers
TypeScript SDK for the Clearvo tax compliance API
Pipedream Obolus Components
Agent toolkit for AFIP WSCDC (Web Service Constatación de Comprobantes Destinatarios): validate that a factura received from a supplier was actually issued by AFIP with a real CAE. Pair with @ar-agents/identity for WSAA cert + signature handling.
SICORE / Ganancias retention agent toolkit for the Vercel AI SDK 6. Federal income tax withholding per RG 830/00. Pure calculation helpers for the four most common operation types (services, professional fees, goods purchase, urban rentals): accumulator-a
Ingresos Brutos (Argentine gross income tax) agent toolkit for the Vercel AI SDK 6. Pure calculation helpers for retention + perception + DDJJ assembly across CABA (AGIP), Provincia de Buenos Aires (ARBA) and Convenio Multilateral (CM-05). Adapter pattern
IVA retention agent toolkit for the Vercel AI SDK 6. Federal value-added tax retentions per RG 2854/10 (general regime). Pure calculator + DDJJ assembly: per-payment retention math with minimum thresholds, accumulator-aware nuances per supplier, agente-de
IVA perception agent toolkit for the Vercel AI SDK 6. Federal value-added tax perceptions per RG 2408/08 (general regime) and the most common sub-regimes. Pure calculator + DDJJ assembly: per-invoice perception math with minimum thresholds, agente-de-perc
TypeScript API client for S-Corp Biz Entity API
MCP server for Clearvo — submit invoices, calculate tax, validate tax numbers via Claude Code, Cursor, or any MCP-compatible AI tool
Transaction tax/fee system for discord.js economy bots