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100
MCP live MCP 2025-03-26 streamable-http

OpenAccountants

io.github.openaccountants/openaccountants

Open-source AI accounting skills verified by licensed accountants (tax, VAT, payroll).

Uptime
100.0%
2 direct probes · 30d
Response
844ms
last probe
Tools
14
callable
Resources
0
readable
Prompts
13
available
Primary URL
https://www.openaccountants.com/api/mcp

Tools · 14

list_skills

List published OpenAccountants skills with their quality tier and verification status. Optionally filter by jurisdiction (e.g. 'US', 'MT', 'DE', 'GB'), domain (the accounting area, e.g. 'vat-gst', 'pa…

get_skill

Fetch a published skill by slug, including its current-version markdown, quality tier, named verifier (where accountant-verified), and a provenance/attribution footer.

get_skill_sections

Fetch the parsed sections of a skill's current version. Each section has a heading and its markdown content. Use this to pull a specific section that get_skill listed in `section_index` as not inlined…

search_skills

Full-text search across all published tax and accounting skills. Find, lookup, query, or discover skills by keyword, tax concept, deduction type, form number, or regulation (e.g. 'home office deductio…

search_rules

Sweep tax rules ACROSS jurisdictions and metadata and get back a bundled markdown rule set plus the jurisdiction's OFFICIAL SOURCE. Best for cross-cutting questions — 'VAT rates in MT, IE and DE', 'al…

get_deadlines

Upcoming filing/payment deadlines and recurring filing rhythms (monthly VAT, quarterly instalments) for a country or US state, from the OpenAccountants tax calendar. Use it whenever the user asks 'whe…

list_rule_facets

Returns the metadata you can filter on with `search_rules` — the live jurisdictions, the domains, roles, block types (rule kinds), statuses, tax years, and a sample of topics — plus the defaults. Call…

start_help

No-argument front door — call this FIRST whenever a user asks 'how can you help me?', 'what can you do?', 'where do I start?', or otherwise opens vaguely (do NOT answer such questions by listing your …

start

Front door for any tax / accounting question once you know what the user wants. `intent` is REQUIRED (e.g. 'taxes', 'VAT return', 'set up a company', 'find deductions', 'classify transactions', 'payro…

list_jurisdictions

Returns every jurisdiction with published skills — countries (ISO 2), US states (US-XX), Canadian provinces — with skill counts, accountant-verified counts, and named lead verifier. Use when the user …

list_verifiers

Returns named licensed accountants who have signed off on OpenAccountants jurisdictions, with their credentials and covered jurisdictions. Use when the user asks who verified a skill or wants to see t…

validate_vat_number

Check whether a business's VAT / tax-registration number is real and registered, in real time against the official government registry — and return the registered business NAME and ADDRESS when the au…

check_audit_exemption

DETERMINISTIC check of whether a private limited company qualifies for statutory audit exemption, from aggregate figures any ledger can provide (turnover, balance sheet total, average employees). Retu…

share_with_openaccountants

Sends feedback or a review request to OpenAccountants. This is the single outbound channel; it does nothing unless the user has explicitly asked to send feedback or to request a review. Two modes: (1)…

Prompts · 13

skill-review

Load a skill's sections and apply its rules to a specific tax scenario.

tax-return

Complete tax return workflow — intake interview, transaction classification, working paper generation.

vat-check

Classify transactions for VAT/GST treatment and produce a VAT return working paper.

find-deductions

Review expenses and identify deductions the taxpayer might be missing.

skill-feedback

Collect structured feedback on a skill after the agent has used it.

compare-jurisdictions

Compare tax treatment across two or more countries for cross-border planning.

cross-border-intake

THE prompt for any complex multi-country tax situation. Takes the user's messy description and runs a structured 8-step intake: classify the event, identify jurisdictions, ask the right questions, req…

uk-self-employed

Full 6-phase workflow for a UK sole trader / self-employed person. Takes the user's facts and produces a complete SA103 working paper: income, expenses, Class 2 + Class 4 NIC, payments on account sche…

us-schedule-c

Full 6-phase workflow for a US self-employed person / sole proprietor filing Schedule C. Produces a complete working paper: gross income, expense deductions, net profit, SE tax (Schedule SE), QBI dedu…

south-africa-income-tax

Full 6-phase workflow for a South African individual taxpayer filing an ITR12. Built on the only fully-verified income tax skills in the OA library (za-income-tax + za-provisional-tax, verified by Wer…

portugal-self-employed

Full 6-phase workflow for a Portugal self-employed person (trabalhador independente) under the simplified regime or organised accounting. Covers IRS Modelo 3 / Anexo B, social contributions (TSU), and…

uk-capital-gains

Full 6-phase workflow for a UK individual with capital gains to report on SA108. Covers shares (section 104 pool), crypto (HMRC pool-averaging rules — NOT FIFO), residential property (60-day reporting…

malta-freelancer

Full 6-phase workflow for a Malta self-employed person or part-time freelancer. Critical flag: the TA22 part-time rules 10% flat rate on the first €12,000 of net part-time SE profit (file + pay by 30 …

How to use

Add to your Claude Desktop / Cursor / Cline MCP config:

{
  "mcpServers": {
    "openaccountants": {
      "url": "https://www.openaccountants.com/api/mcp",
      "transport": "streamable-http"
    }
  }
}