Mini Accountant

app.miniaccountantPublished by miniaccountant.appOfficial publisherv1.0.1Updated Oct 25, 2026

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

VerifiedStreamable HTTPWeb executableFinanceData & AnalyticsBusiness & Commerce

Overview

AI-generated overview

Hosted MCP server for Mini Accountant that lets an assistant create and manage invoices, customers, expenses and services, and run tax and revenue reports in…

What you can do
  • Create, read, update and delete invoices, including positions, transactions and the customer on an invoice
  • Create, read, update and delete customers and set their payment method
  • Create, read, update and delete expenses, and fetch expenses for a period
  • Manage the reusable service/product catalogue and payment-method documents
  • Run reporting queries, list invoices, transactions and expenses for a date range, and estimate tax for a period
  • Read and update the user profile and app settings, with guided skills and prompts such as creating an invoice
When to use it
Useful for freelancers and small businesses, including multi-currency billing, who want to draft invoices, log expenses, add customers or check revenue and VAT from a chat assistant instead of the app. It is invoicing, expense and reporting tooling, not a general ledger.
Requirements
A remote streamable-HTTP endpoint; no local install or API key. Requires a Mini Accountant account and an OAuth 2.1 / OIDC sign-in (Authorization Code with PKCE, dynamic client registration) through a client that supports remote MCP servers. The app is free to download with optional in-app subscription.
Before you install
The assistant acts on your behalf with write access: it can create, change and delete invoices, customers, expenses, services and payment settings, and update your profile and app settings. Access tokens expire after about an hour and must be re-authorized. Sign in with the correct account, since the connector is scoped to one workspace.

Installation

In SourceWeft

  1. Open Mini Accountant in the dashboard and add it to a workspace.
  2. Connect the required credentials. They are stored privately and never shown on public pages.
  3. Enable the server for the chats that should use its tools.

Web executable via Streamable HTTP. Remote servers run from the web runtime once configured in a workspace.

Use with an agent

Paste this prompt into Claude Code, Codex, Cursor or another agent — or into SourceWeft chat. The agent reads this server's install guide, shows you its publisher, endpoint and sign-in, and adds it to your client once you agree. Keys never go into a command.

Read https://sourceweft.com/mcp/app.miniaccountant%2Fmini-accountant/install.md and connect the MCP server it describes to my client. Before changing any config, show me its publisher, endpoint and sign-in method and wait for my OK. Never put an API key in a command or in a file I would commit; ask me where it should come from.

Read the install guide the agent follows

Other MCP clients

Add this to your client's mcpServers config. The client completes OAuth sign-in on first connect.

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

README

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; the app is free to download and its core features are free, with an optional in-app subscription on top.
  • 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):

json
{  "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:

json
{  "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

Source: README.md at commit 9d7e619

Tools

0
This server asks you to sign in, so SourceWeft could not read its tools without an account and has not indexed them. What a connected account sees can depend on that account and its permissions.

Version history

2
  1. v1.0.1LatestOct 25, 2026
  2. v1.0.0Sep 16, 2026

Score

75% of the applicable checks met

How complete this listing is, computed from the registry entry, the endpoint and public sources. Not a rating of the server and not a statement that it is safe or working today: reachability is a dated check, and no installs or reviews go into the score.

  • Reached in the last 30 daysRequired25 pts
  • Auth declaredRequired10 pts
  • Tools listed15 pts

    Answer tools/list without a credential, or ship a package that starts in a sandbox without one.

  • DescriptionRequired15 pts
  • Logo10 pts
  • Documentation15 pts
  • License10 pts

    Declare a license in the repository or the registry entry.