Categories › Business & Finance › Accounting & invoicing
Tax skills in 190+ jurisdictions. Sources and accountant approval status shown per skill.
Remote server: your requests and data go to www.openaccountants.com. Claude Code: claude mcp add --transport http openaccountants https://www.openaccountants.com/api/mcp · Claude app: Settings → Connectors → Add custom connector.
The tools this server listed when we connected to it, in its own words.
start — Call this first for any tax, VAT/GST, payroll or filing question about a country or US state, such as "how much tax will I pay in Spain", "dsearch_skills — Find or browse skills. With a `query`, finds the skill for a specific tax topic by keyword: a deduction, form, regime or rule such as 'home get_skill — Open a skill by slug (from start, search_skills or search_rules) to answer the user's question. Returns the skill's rules and method, its qusearch_rules — Look up tax rates, thresholds and rules in one or many jurisdictions, such as 'VAT rates in MT, IE and DE', 'income tax brackets for 2025' oget_deadlines — Filing and payment deadlines for a country or US state: 'when is my tax return due', 'when do I file VAT', 'when is the next instalment'. Relist_jurisdictions — Answers 'which countries do you cover?' or 'what is there for [country]?'. Returns every jurisdiction with published skills (countries as ISlist_verifiers — Answers 'who reviewed this?' or 'which accountants are behind this?'. Returns the named licensed accountants who have signed off on OpenAccoget_quote — Call only when the user asks what OpenAccountants charges, requests a quote, or asks whether their current fee is fair. Returns the same pubvalidate_vat_number — Check live whether an EU VAT number is valid and registered, for example before applying a B2B reverse charge, zero-rating an intra-EU sale check_audit_exemption — Answers 'does my company need an audit?' for a private limited company in Malta (MT, Article 185(2) micro thresholds) or the UK (GB, small-ccompute — Computes a tax figure with fixed, tested code instead of mental arithmetic. Use this for any figure an engine below covers; never compute thshare_with_openaccountants — Only when the user asks: sends their feedback, or their request for a person to check or do the work, to OpenAccountants. Two modes. (1) `noNot tested by KitScout yet. When our harness runs it, pros, cons and the tasks we tried appear here, with the date and evidence.