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Mini Accountant

by miniaccountantversion 1.0.1i★ –iRuns in the cloud
Registry nameapp.miniaccountant/mini-accountant

Install

Overview

Description from the maker (original English)

Invoicing, expenses, accounting analytics. OAuth 2.1 dynamic client registration, no API key.

PopNx MCP’s three pillars

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

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 in the cloud
  • Transport: Streamable HTTP
  • Category: Accounting, finance & tax

Install

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

Before you install

  • Basic checks: 3 of 3 passed
  • Runs on the maker’s server: what you ask it goes through their server.
  • The registry lists no key to fill in.

You need

Which app do you use?

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

Works in Claude on the web, desktop and mobile:

  1. Open Settings → Connectors
  2. Press Add custom connector
  3. Paste the address below and press Add
  4. If it asks you to sign in, sign in with the maker
SettingsConnectors1+ Add2https://…3
https://mcp.miniaccountant.app/v1beta

Run this in your terminal

claude mcp add --transport http mini-accountant https://mcp.miniaccountant.app/v1beta

Open in Cursor

Or copy the settings yourself

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

{
  "mcpServers": {
    "mini-accountant": {
      "url": "https://mcp.miniaccountant.app/v1beta"
    }
  }
}

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": {
    "mini-accountant": {
      "type": "http",
      "url": "https://mcp.miniaccountant.app/v1beta"
    }
  }
}

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.

ChatGPT connects only to servers on the internet:

  1. Open ChatGPT on the web → Settings → Connectors (Apps)
  2. Press Create or Add (some plans need Developer mode under Advanced first)
  3. Paste the address below, give it a name and save
  4. If it asks you to sign in, sign in with the maker
SettingsConnectors1+ Create2https://…3
https://mcp.miniaccountant.app/v1beta

Menu names can differ slightly by plan and over time.

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

The server asks you to sign in before it lists its tools.

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 8, 2026

  • ✓ Pass

    Maker matches the repo

    The registry name was verified against the domain miniaccountant.app (the registry checks domain ownership)

  • … 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

  • ✓ Pass

    Endpoint responds

    Responded in 238 ms (HTTP 401)

  • ✓ Pass

    Sign-in with OAuth

    Declares OAuth sign-in, so your AI app can take you to log in

  • … Not checked yet

    No hidden instructions in tool descriptions

    Not checked yet; we read the tool list when we check the endpoint

Compared with others in Accounting, finance & taxi

  • More stars than 0% of the other 2918 servers in this category
  • Published to the registry more recently than 69% of the other 2918 servers in this category
  • Basic checks equal to or better than 100% of the other 2918 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 Mini Accountant safe?

It passed 3 of 3 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 in the maker’s cloud. Connect over the internet with nothing to install, but what you send passes through the maker’s servers.

Is it still maintained?

The GitHub repo last changed –, and the latest version (1.0.1) reached the registry 13 days ago.

Which apps can use it?

Apps that support MCP, such as Claude Desktop, Claude Code, Cursor and VS Code. It connects by URL, so apps that accept remote MCP servers work too, such as ChatGPT in developer mode.

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 9 days ago
Install

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

Runs on your computer★ 97MITUpdated 2 days ago
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.

Mini Accountant — MCP setup

Connect your AI assistant to your Mini Accountant workspace through our hosted Model Context Protocol (MCP) server. No local setup, no API keys — the server is remote and protected by OAuth 2.1, so you sign in once with your Mini Accountant account and your assistant acts on your behalf.

  • Server: mini-accountant
  • Transport: streamable HTTP
  • URL: https://mcp.miniaccountant.app/v1beta
  • Auth: OAuth 2.1 / OIDC (Authorization Code + PKCE) — you'll be prompted to sign in.
  • Sign-in required: yes. The server is user-scoped, so there is a sign-in step and no anonymous access. It needs a Mini Accountant account, and every feature is free on iPhone, iPad, Android and the web. The optional Pro subscription removes the "Powered by Mini Accountant" line from invoices and reports; it does not unlock anything, so nothing the assistant can do here is behind it.
  • Built for: freelancers and small businesses, including ones billing in more than one currency.

What you can do

Once connected, the assistant can:

  • Invoices — create, read, update, delete; add/update/remove positions and transactions; change the customer on an invoice.
  • Customers — create, read, update, delete; set a customer's payment method.
  • Expenses — create, read, update, delete; fetch expenses for a period.
  • Services — manage your reusable product/service catalogue.
  • Payment settings — manage the payment-method documents customers reference.
  • Analytics — run reporting queries; get invoices/transactions/expenses for a date range; estimate tax for a period.
  • Account — read and update your user profile and app settings.

Guided skills and prompts (e.g. "create an invoice") are also exposed so the assistant discovers the right workflow automatically.

Ask it things like
  • *"Invoice Acme for 12 hours of design work at €90 an hour."*
  • *"Log a €400 expense for the Berlin trip."*
  • *"What did I invoice last month, and how much VAT is on it?"*
  • *"Add a customer in the US who pays in dollars by bank transfer."*
  • *"Which invoices have no payment against them yet?"*
  • *"Estimate my tax for the third quarter."*

The assistant works in your own Mini Accountant workspace — the same data the iOS, Android and web apps show.

What it doesn't do

Worth stating plainly, because comparison tables tend to assume the opposite:

  • No recurring or scheduled invoicing. You can duplicate an existing invoice in one step and the copy is dated today, which is the nearest equivalent.
  • No double-entry bookkeeping and no audit trail. This is invoicing, expenses and reporting for a small business, not a general ledger.
  • No payroll.
  • No statutory e-invoicing. It does not file invoices into a national e-invoicing regime, and it does not produce an accountant-facing export in a national standard format.

Install in Claude Code (plugin)

The quickest path — installs the remote server as a plugin, no manual config file.

/plugin marketplace add miniaccountant/mcp-setup

/plugin install mini-accountant@miniaccountant /reload-plugins

Then run /mcp and complete the OAuth sign-in when prompted. That's it — the mini-accountant tools are now available in your session.

Prefer not to use the marketplace? Add the server directly:

`

claude mcp add --transport http mini-accountant https://mcp.miniaccountant.app/v1beta

`

Connect from other clients

Same remote URL, same OAuth sign-in — only the config location differs.

Claude Desktop / claude.ai connectors

Add a custom connector pointing at the server URL:

  1. Open Settings → Connectors → Add custom connector (claude.ai) or the equivalent in Claude Desktop.
  2. Name: Mini Accountant
  3. URL: https://mcp.miniaccountant.app/v1beta
  4. Save, then connect and sign in with your Mini Accountant account when prompted.
Cursor

Add to ~/.cursor/mcp.json (global) or .cursor/mcp.json (per-project):

{

"mcpServers": { "mini-accountant": { "url": "https://mcp.miniaccountant.app/v1beta" } } }

Reload Cursor, then authorize the server when Cursor opens the OAuth prompt.

VS Code (GitHub Copilot / MCP) and other clients

Any client that supports remote/streamable-HTTP MCP servers works with the same endpoint. Use the client's HTTP-server form:

{

"servers": { "mini-accountant": { "type": "http", "url": "https://mcp.miniaccountant.app/v1beta" } } }

Authentication

The server implements OAuth 2.1 / OpenID Connect with:

  • Authorization Code grant + PKCE (S256), refresh tokens.
  • Dynamic Client Registration (RFC 7591) — clients register automatically.
  • Discovery documents:
  • https://mcp.miniaccountant.app/.well-known/oauth-authorization-server
  • https://mcp.miniaccountant.app/.well-known/oauth-protected-resource
  • https://mcp.miniaccountant.app/.well-known/openid-configuration

Compliant MCP clients discover these automatically — you only need the server URL. Tokens are issued to your account; the assistant can only see and change your data.

Troubleshooting

  • `401 Unauthorized` / prompted to sign in again — the access token expired (1h TTL). Re-run the client's connect/authorize action.
  • Tools don't appear — confirm the client finished the OAuth flow (in Claude Code, run /mcp and check the server shows *connected*).
  • Wrong workspace — sign out of the connector and reconnect with the correct Mini Accountant account.

Support

  • Website: https://ad.miniaccountant.app
  • Support: support@miniaccountant.app
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