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Step 2 of 4 · ProjectsBy kind

All projects By kind MCP

MCP: 31 open source projects.

Open connectors and protocols between agents and legislation, case law and ledgers.

31 projects28 maintained11 on the map16 jurisdictions + globalFacts checked 6 Oct 2026

Browse these by tax area

Income tax Corporate tax Benefits Payroll tax VAT & indirect Cross-cutting

elster-mcp-serverMCP server for the German ELSTER portal: submits VAT pre-returns and prepares income tax filings.MCPDE

irs-taxpayer-mcpMCP server with 44 local tools for US federal and state tax estimates, credits and planning.MCPUSFor individual taxpayers

itr-agentMCP server for Indian income tax filing: local computation, regime comparison and document parsing.MCPINFor individual taxpayers

mcp-fiscal-brasilBrazilian tax MCP server: CNPJ, NF-e, NFS-e, CT-e, SPED, eSocial and Simples Nacional.MCPBR

mcp-htsMCP server for US tariff rates from the USITC schedule, through a free gateway or a local stdio server.MCPUS

mcp-skatteetatenMCP server for the Norwegian Tax Administration's APIs, with Maskinporten sign-in.MCPNOLicence unknown

Model Context ProtocolThe open standard for connecting AI agents to tools, data and sources.MCPGlobal

OpenFisca Japan MCPMCP server with tools for OpenFisca Japan, the Japanese tax and benefit model.MCPJP

OpenFisca MCPMCP interface for interacting with OpenFisca calculations.MCPGlobalLicence unknown

optionsahoy-mcpMCP server that models the federal and state tax on equity pay: ISOs and AMT, NSOs and RSUs.MCPUSFor individual taxpayers

tariff-everywhereLocal US HTS lookup in SQLite with a CLI and an MCP server.MCPUSHippocratic License 3.0

tariff-resolverMCP server for US import duty research from bundled USITC data: Chapter 99, MPF and HMF fees, landed cost.MCPUS

UK Trade Tariff MCP serverMCP server from the UK tariff team: commodity-code lookup on the Online Trade Tariff as tools for AI clients.MCPUK

zambia-fintech-mcpMCP server for Zambia: PAYE and NAPSA gross-to-net payroll, plus utility units and mobile money fees.MCPZMFor individual taxpayers

zatca-mcpMCP server that lets AI agents create Saudi ZATCA-compliant e-invoices.MCPSA

agenttax-mcpMCP server that tracks US sales-tax obligations for paid MCP tools and AI agents.MCPUSNeeds a paid service

ato-mcpMCP server that gives AI agents cited answers from ATO guidance, legislation and public rulings.MCPAUNeeds a paid service

BoomTax MCP serverMCP server to query BoomTax filings, forms and e-file status for US information returns.MCPUSNeeds a paid serviceLicence unknown

customs-mcp-server (yak33)Fourteen customs and trade MCP tools (declarations, tariff, dual-use screening, parsing); backend not open.MCPCNNeeds a paid service

douanecode-mcpMCP server for HS, NC8 and TARIC code search through douanecode.fr; needs a Pro API key.MCPFR · EUNeeds a paid service

FacturaHub MCPMCP server for invoicing, expenses and tax declarations through FacturaHub's API; e-invoicing for Panama.MCPES · MX · GlobalNeeds a paid service

FreeTaxUSA MCP ServerMCP server that drives FreeTaxUSA in a browser; navigation and personal-info tools work, the rest are stubs.MCPUSNeeds a paid serviceFor individual taxpayers

french-tax-mcpMCP server for French tax calculations and information.MCPFRInactive since 2025For individual taxpayersLicence unknown

hs-code-classifier-mcp-serverMCP server that classifies products to HS codes through the HSPing API; needs a key with tiered pricing.MCPGlobalNeeds a paid service

InvoiceXML MCPMCP server for the InvoiceXML API: Factur-X, ZUGFeRD, XRechnung, UBL, CII and Peppol BIS invoices.MCPEU · DE · FRNeeds a paid service

LR Labs MCP connectorMCP client for a hosted engine that screens Indian transfer pricing safe harbour, thresholds and range.MCPIN · USNeeds a paid service

Norman MCP ServerMCP server that connects AI assistants to Norman's bookkeeping and tax service for German businesses.MCPDENeeds a paid serviceFor individual taxpayers

openswissdataMCP server and signed datasets of the Swiss customs tariff (TARES), FINMA lists and NOGA crosswalks; hosted.MCPCHNeeds a paid serviceLicence unknown

PolicyEngine MCPMCP server for PolicyEngine's database and tax-benefit simulations.MCPGlobalInactive since 2025Licence unknown

vatnode MCPMCP server to validate EU VAT numbers and look up VAT rates, with offline checks.MCPEUNeeds a paid service

vies-mcp-serverMCP server that validates EU VAT numbers through the VIES service.MCPEUInactive since 2025Licence unknown

Labels mark what to check before you rely on an entry: inactive or archived code, demos, paid services and unclear licences. Only maintained projects for companies and tax authorities appear on the map. Search and filter the whole list.

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Next · Step 3 of 4The gapsThe activities with no open project yet, and the partly covered ones, with what to build on.