OpenAccountants
io.github.openaccountants/openaccountants · v1.0.0 · MCP 2025-03-26
Open-source AI accounting skills verified by licensed accountants (tax, VAT, payroll).
Reachability
reachable
checked 2026-07-14 04:12 UTC
Registry status active
Tools pinned 13
3848d0e7275b
Tools last changed
unchanged since first capture 2026-07-14
Repo last push 2026-07-13
GitHub stars 245
Provenance
Registry namespace io.github.openaccountants
(GitHub-account verified by the official registry)
Repository
github.com/openaccountants/openaccountants
Remote endpoints
https://www.openaccountants.com/api/mcp (streamable-http)
Observed changes
| When (UTC) | Event | Detail |
|---|---|---|
| 2026-07-14 04:12 | first capture | 13 tools pinned |
Pinned tool definitions (13)
| Tool | Description |
|---|---|
| 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', 'payroll', 'income-tax'), or role... |
| 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 (e.g. a supplier-pattern library) —... |
| 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 deduction', 'crypto capital gains', 'reverse... |
| search_rules | Query individual tax RULES/FACTS (rates, thresholds, rules, definitions, tables) ACROSS jurisdictions and metadata, and get back a bundled markdown rule set the user can save and run locally. Unlike get_skill (one whole skill), this... |
| 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 'when is X due', mentions a filing date,... |
| 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 this before `search_rules` to learn... |
| 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 tools or calling... |
| 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', 'payroll'); pass a jurisdiction too (ISO... |
| 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 asks 'which countries does... |
| list_verifiers | Returns named licensed accountants who have signed off on OpenAccountants jurisdictions. Use ONLY when the user explicitly asks to see the verifier network or 'who verified this skill'. Do NOT use this to check whether a jurisdiction is... |
| 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 authority discloses them. This is an... |
| share_with_openaccountants | THE one outbound channel — the single place ALL feedback and any review go. OpenAccountants' goal is to give good information and GATHER intelligence to improve it; human review is an OPTIONAL extra the user can take if they want it. At... |
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