Openaccountants MCP

Name: Openaccountants MCP
Author: openaccountants

by openaccountantsversion 0.1.1i★ –iRuns on your computer

Registry nameio.github.openaccountants/openaccountants-mcp

Install

Overview

Description from the maker (original English)

Open-source tax skills for AI across 134 countries.

PopNx MCP’s three pillars

These three are never merged into one score: opinions, measurements and popularity are different things.

User voiceiNo reviews yetReviews open together with accounts in a later step
Our basic checksi1 of 1 passedChecked from public information; code not scanned yet
UsageiNot measured yet★ –

What you can do with it

We have not written a plain-language summary for this one yet. Below are the facts we read from the registry.

Connection: Runs on your computer
Transport: stdio
Category: Accounting, finance & tax

Install

Pick the AI app you use, then copy the settings.

Before you install

Basic checks: 1 of 1 passed
Runs on your computer with your user’s permissions (files, network, apps).
The registry lists no key to fill in.

You need

PyPIPython’s uv installed (for the uvx command)

Which app do you use?

ClaudeClaude CodeCursorVS CodeChatGPT

Pick your app above. We remember it, so next time the button says “Install in …”.

Open Claude Desktop → Settings → Developer → Edit Config, and paste this into claude_desktop_config.json

{
  "mcpServers": {
    "openaccountants": {
      "command": "uvx",
      "args": [
        "openaccountants-mcp"
      ]
    }
  }
}

Run this in your terminal

claude mcp add openaccountants -- uvx openaccountants-mcp

Open in Cursor

Or copy the settings yourself

Paste into .cursor/mcp.json in your project, or ~/.cursor/mcp.json

{
  "mcpServers": {
    "openaccountants": {
      "command": "uvx",
      "args": [
        "openaccountants-mcp"
      ]
    }
  }
}

Your browser asks to open the app, then the app shows the settings and asks you to confirm. Key values are left empty for you to fill in.

Open in VS Code

Or copy the settings yourself

Paste into .vscode/mcp.json in your project

{
  "servers": {
    "openaccountants": {
      "type": "stdio",
      "command": "uvx",
      "args": [
        "openaccountants-mcp"
      ]
    }
  }
}

Your browser asks to open the app, then the app shows the settings and asks you to confirm. Key values are left empty for you to fill in.

This one runs on your computer, and ChatGPT can only connect to servers on the internet. Pick another app.

Your choice stays on this device in a cookie; no account needed.

These settings are generated from the maker’s registry entry. If the README says otherwise, follow the README.

What it can do

Runs on your computer; the tool list appears in your AI app after you install it.

Basic checksi

We check information anyone can see; we have not read the code. Checks that do not apply are left out of the count. · Checked Nov 7, 2026

✓ Pass
Maker matches the repo
The registry name was verified with the GitHub account openaccountants, which owns the repo
… Not checked yet
Still maintained
We have not read this repo from GitHub yet
… Not checked yet
Has a licence
We have not read this repo from GitHub yet
– Not applicable
Endpoint responds
This one runs on your computer; there is no internet endpoint
– Not applicable
Sign-in with OAuth
Runs on your computer and uses local settings instead
… Not checked yet
No hidden instructions in tool descriptions
Runs on your computer; we can only read tool lists from internet endpoints

Compared with others in Accounting, finance & taxi

More stars than 0% of the other 1734 servers in this category
Published to the registry more recently than 6% of the other 1734 servers in this category
Basic checks equal to or better than 100% of the other 1734 servers in this category

Compared with every active server in this category in the registry. Stars count only when the publisher owns the repo.

Common questions

Is Openaccountants MCP safe?

It passed 1 of 1 applicable basic checks. We have not read the code. Before adding a key or token, see what access the server asks for and use a key with only the permissions you need.

What keys or codes does it need?

The registry does not list a required key, though some servers ask you to sign in on first use.

Does it run on my computer or in the cloud?

It runs on your computer. Your AI app starts it when needed, and data does not pass through the maker’s servers (unless it calls an online service itself).

Is it still maintained?

The GitHub repo last changed –, and the latest version (0.1.1) reached the registry 7 months ago.

Which apps can use it?

Apps that support MCP, such as Claude Desktop, Claude Code, Cursor and VS Code. You also need Python (uv) on your computer.

What can I use instead?

In the same category: Finance Toolkit, SolidInvoice, Korea Tax Calculator

Alternatives

Servers in the same category from other makers, sorted by stars.

Reading a card:★ GitHub starsiThree pillars: reviews · checks · usageiUpdated = latest version published to the registryi

Finance Toolkit

by JerBouma

500+ transparent financial methods calculated from raw statements, not third-party endpoints.

Computer or cloud★ 5,496MITUpdated yesterday

Install

SolidInvoice

by SolidInvoice

Create and send invoices and quotes, manage clients, and track payments in SolidInvoice.

Runs in the cloud★ 981MITUpdated 8 days ago

Install

Korea Tax Calculator

by UpstageAI

Korean tax calculation and tax-audit judgment MCP: 96 tools with statutory citations.

Runs on your computer★ 97MITUpdated yesterday

Install

README from the maker

Open the README

Copied from the maker’s repo as written. PopNx MCP has not reviewed or endorsed it. HTML, images and scripts are removed. Links lead off this site.

OpenAccountants

Open tax skills for AI. Your AI answers tax questions from memory. Add these skills and it answers from the law: every rate, threshold and deadline cited to its official source, for 190+ jurisdictions.

2,132 AI skills across 249 jurisdictions · 33 accountant-reviewed · 39 named accountants · 6,115 questions answered through connected AIs

Live from openaccountants.com — updated 2026-10-30 by the nightly sync.

Find your country

[Browse all countries](skills/COUNTRIES.md), by region, with the state of each pack. United States: federal and states.

Add to your AI

Add this address to Claude, ChatGPT, Cursor, Windsurf or any AI that takes a connector:

https://www.openaccountants.com/api/mcp

Guided setup: [openaccountants.com/connect](https://www.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?"*

Prefer self-hosting or manual files?

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.

Also listed on Smithery and the MCP Registry.

Contribute

Three ways in, all in [CONTRIBUTING.md](CONTRIBUTING.md):

I can write. Take a country and write its missing skills from the law.
I am an accountant. Review a skill and put your name on it.
I found a mistake. Open an issue with the source that shows it.

How to read a skill

Every skill shows Built from the law. An approved accountant publishing their own professional work is also its approver; they record their own approval in the original PR. No second accountant or separate approval PR is required. Skill content is source-available under the terms in LICENSING.md.

Each skill has one approval status:

State	Meaning
Approved by [name]	The accountant's approval is recorded with `tier: 1`, `reviewed_by` and `reviewed_on`. The website resolves that name to a current approved accountant account.
Not yet approved	No named accountant approval is recorded. Independent source checking before merge is separate from professional approval.

The definitions: docs/QUALITY-TIERS.md. How skills are built, checked and corrected: docs/ACCURACY-METHODOLOGY.md. Which number to quote and where it is measured: docs/COVERAGE.md.

⚠️ General reference, not advice. Skills may be incomplete, outdated, or wrong for your facts. Have a qualified professional review outputs before filing, payment, or action.

Need the work done?

OpenAccountants also does the bookkeeping, VAT, payroll and tax work for businesses, in the countries they work in. Talk to us. The skills and the AI connection stay free.

How it stays accurate

A tax library is only as good as its worst stale number, so machines re-check this one every night:

The maths check re-reads every skill and flags sums that do not add up, tax bands with gaps, totals that do not total, and years that disagree.
The source watch visits the official pages the figures came from and raises a hand when a page changes.
The refresh engine re-derives the stalest skills from official sources on a fixed monthly budget, refusing to publish any figure without a link.
The nightly exam tests whether AIs actually said what the skills say that day, or improvised. Improvisation gets caught, counted and fixed at the source.

GitHub is the source of truth for skill documents. Merged PRs are delivered to the platform and checked against the published content. Generated packages and indexes are refreshed by the scheduled sync. A merge alone does not prove that a skill is live.

The whole story, in plain words: openaccountants.com/how-it-works

For developers

What	Where
Skill source (per jurisdiction)	`skills/`
Per-country bundles (generated)	`packages/`
Machine-readable inventory	`index.json`
LLM entry point	`llms.txt`
Python MCP server	`mcp/` · PyPI
Repo architecture + sync	`docs/REPO-LAYOUT.md` · `docs/WEBSITE-SYNC.md`

API and platform integrations: openaccountants.com/for-developers

Related open-source projects

Independent, open-source review aids and calculation tools that complement the OpenAccountants skill library:

[payday-super-checker](https://github.com/ryanduguid/australian-accounting/tree/main/packages/payday-super-checker) (Apache-2.0): Verifies superannuation contributions against Australian Payday Super deadlines (in force since 1 July 2026) and estimates SG charge exposure on late payments, with all workings and statutory assumptions disclosed.
[div7a-loan-review](https://github.com/ryanduguid/australian-accounting/tree/main/packages/div7a-loan-review) (Apache-2.0): Reviews Division 7A loan terms and minimum yearly repayments against the ATO benchmark interest rate, with fabricated inputs and explicit refusal boundaries.
[xero-trial-balance-export](https://github.com/ryanduguid/accounting-review-pipeline/tree/main/packages/xero-trial-balance-export) (Apache-2.0): Exports a Xero trial balance to CSV only when month-movement and YTD column pairs both balance exactly.
[ato-benchmark-compare](https://github.com/ryanduguid/australian-accounting/tree/main/packages/ato-benchmark-compare) (Apache-2.0): Evaluates business P&L statements locally against the Australian Taxation Office (ATO) small business performance benchmarks, surfacing variance flags and ratio analyses.
[OsaBooks](https://github.com/hidicker/osabooks) (AGPL-3.0): Free bookkeeping for businesses, rental properties and households in Australia, New Zealand, South Korea and the United States, with Xero and QuickBooks imports. Use it as a standard bookkeeping platform, or with several AI features: coding suggestions, year-end checks against the OpenAccountants guides, and an MCP connector so Claude, ChatGPT or another AI app can read your books. Runs on your own computer or online on your own Supabase. Home page and demo.

*(External tools provide computational review assistance and do not constitute tax or legal advice.)*

License

Code (mcp/, scripts/, tools/, calculators/): AGPL-3.0-only
Skill content: OpenAccountants Guide License, see LICENSING.md; commercial options in COMMERCIAL-LICENSING.md

Contact: info@openaccountants.com · Security policy · Cite this repo

Openaccountants MCP

Overview

PopNx MCP’s three pillars

What you can do with it

Install

Before you install

What it can do

Basic checksi

Maker matches the repo

Still maintained

Has a licence

Endpoint responds

Sign-in with OAuth

No hidden instructions in tool descriptions

Compared with others in Accounting, finance & taxi

Common questions

Alternatives

Finance Toolkit

SolidInvoice

Korea Tax Calculator

README from the maker

OpenAccountants

Find your country

Add to your AI

Contribute

How to read a skill

Need the work done?

How it stays accurate

For developers

Related open-source projects

License