This server provides programmatic access to the OpenAccountants tax and accounting knowledge base across 190+ jurisdictions, enabling AI agents to load the right reference material for tax, VAT, payroll, and accounting workflows.
list_jurisdictions — Discover all available country/jurisdiction slugs (e.g. malta, uk, germany, us-ca) that have at least one skill file.
list_files — For a given jurisdiction, retrieve a sorted list of all .md and .json skill files available (e.g. foundation.md, malta-vat.md, malta-income-tax.md).
get_file — Read the full contents of a specific skill file for a jurisdiction (up to 2 MB), loading tax rules, deduction tables, VAT workflows, payroll guides, and more into context.
Integration with QuickBooks for accounting and bookkeeping tax skills.
Integration with Shopify for e-commerce tax and accounting skills.
Integration with Stripe for payment processing tax skills.
Integration with Wise for cross-border payment tax skills.
Integration with Xero for accounting and bookkeeping tax skills.
Open-source Tax Guides your AI can cite — reviewed by named, licensed accountants.
Every AI can do tax math. None of them can stand behind an answer. Here, real accountants put their name, credential and review date on the Guides your AI reads — publicly, on the record, in this repo.
1,790 Guides across 228 jurisdictions · 188 accountant-reviewed · 32 named accountants · 5,053 questions answered through connected AIs
Live from openaccountants.com — updated 2026-08-04 by the nightly sync.
Add the hosted connector to Claude, ChatGPT, Cursor, Windsurf or any MCP client:
https://www.openaccountants.com/api/mcpGuided setup: openaccountants.com/connect
Then ask a question your AI would otherwise guess at:
"What's the combined sales tax rate in Manatee County, Florida for 2026?"
Without OpenAccountants, models answer from training data. With it, the answer cites the current Guide — and names the accountant who reviewed it.
You: "I'm a freelancer in South Africa. What do I owe?"
↓ loads za-income-tax, za-provisional-tax
AI: ITR12 working paper · IRP6 provisional schedule
Medical credits · Retirement annuity deduction
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Reviewed by Werner Britz CA(SA)pip MCP server: pip install openaccountants-mcp (mirrors this repo's packages/)
Manual: download your jurisdiction's folder from packages/ and upload the files to your AI. Start with your country's main package; index.json is the machine-readable inventory.
Related MCP server: mcp-europe-business
Every Guide is in exactly one state — and the repo greps honestly:
State | Meaning |
Accountant-reviewed | A named, licensed accountant reviewed the complete Guide. Their name is in the frontmatter ( |
Source-cited draft | Written from primary legislation, every figure cited to its source — not yet professionally reviewed |
⚠️ General reference, not advice. Guides may be incomplete, outdated, or wrong for your facts. Have a qualified professional review outputs before filing, payment, or action.
Your name on the tax knowledge AI actually uses — with attribution built in:
Build a Guide for the work you know cold: openaccountants.com/skills/new. It publishes credited to you, and lands in this repo under your name.
Review a Guide in your jurisdiction — your name, credential and review date go on it, here and on every AI answer that cites it.
Set your GitHub username in your profile and your platform edits are committed to this repo as you — your contribution graph reflects your work.
The current roster: VERIFIERS.md (generated nightly from the platform).
Edit skills/** only — everything else regenerates automatically:
packages/, index.json, llms-full.txt — generated nightly; never edit in a PR
Merged PRs are ingested into the platform and credited to you; the sync will not overwrite your merged content
Full guide: CONTRIBUTING.md · Layout: docs/REPO-LAYOUT.md
What | Where |
Guide source (per jurisdiction) | |
Per-country bundles (generated) | |
Machine-readable inventory | |
LLM entry point | |
Python MCP server | |
Repo architecture + sync |
API and platform integrations: openaccountants.com/for-developers
Code (mcp/, scripts/, tools/): AGPL-3.0
Guide content: OpenAccountants Guide License v1.0 — see LICENSING.md; commercial options in COMMERCIAL-LICENSING.md
Contact: info@openaccountants.com · Security policy · Cite this repo
Unclaimed servers have limited discoverability.
If you are the server author, to access and configure the admin panel.
Deterministic cross-border tax engine: PE, GAAR and Indian TP computed from compiled law. No LLM.
Free public tax MCP: GST/VAT, income, company & capital-gains tax for 50+ countries, source-cited.
Current source-cited 2026 US tax constants and calculators for AI agents; every answer cites IRS.
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