CashCtrl MCP server

Read CashCtrl accounts, journal, orders, people, articles, salaries and reports; book and create. Hosted by usefulapi — connect from Claude, Cursor, or any MCP client.

Claude claude.ai · Desktop

  1. Open Customize → Connectors, then click + Add → Add custom connector.
  2. Enter the name CashCtrl and this URL, then click Add:
    https://cashctrl.usefulapi.io/mcp
  3. Claude opens the login page: enter your CashCtrl organization and CashCtrl API key.
  4. In a chat, click + → Connectors and turn on CashCtrl.

Team and Enterprise: an Owner adds the connector for the organization first.

Claude Code

Run this command, then run /mcp in Claude Code to log in:

claude mcp add --transport http cashctrl https://cashctrl.usefulapi.io/mcp

Cursor

Add to Cursor or add this to ~/.cursor/mcp.json:

{
  "mcpServers": {
    "cashctrl": {
      "url": "https://cashctrl.usefulapi.io/mcp"
    }
  }
}

VS Code

Add to VS Code or add this to .vscode/mcp.json:

{
  "servers": {
    "cashctrl": {
      "type": "http",
      "url": "https://cashctrl.usefulapi.io/mcp"
    }
  }
}

Other MCP clients (Windsurf, Cline, Zed and more): add the URL as a remote MCP server (Streamable HTTP). The client then opens the login page in your browser. Do not add an Authorization header: see Before you connect.

live32 toolsFree 100 tool calls / monthPro $9/mo · $90/yr

Before you connect

The login page asks for your CashCtrl organization and CashCtrl API key.

Create the key in CashCtrl under Settings → Users & Roles → Add → Add API user (the API needs a PRO account; one API user per organization). The role of the API user decides what this server can read and change, so a read-only role makes it read-only. The organization is the "myorg" part of myorg.cashctrl.com. Your key is used only to call the CashCtrl API of that organization on your behalf; it is never shown to anyone.

Add only the URL. Do not add an Authorization header or an API key to the client config. The server signs you in with OAuth: the login page asks for your CashCtrl organization and CashCtrl API key. If the config has such a header, remove it: some clients then send that header instead of the login token, and every call fails with 401.

Tools 32

ToolTypeWhat it does
cashctrl_list_accountsread
List accounts
The chart of accounts: number, name, category and the balance for the fiscal period. Not paged. GET /account/list.json.
cashctrl_get_accountread
Get an account
One account of the chart of accounts by id. GET /account/read.json.
cashctrl_get_account_balanceread
Get an account balance
The balance of one account at the end of a day (default: the last day of the current fiscal period). GET /account/balance.
cashctrl_list_account_categoriesread
List account categories
The categories of the chart of accounts (assets, liabilities, expenses, revenue and their sub-categories). GET /account/category/list.json.
cashctrl_list_bank_accountsread
List bank accounts
The bank accounts set up in CashCtrl (name, IBAN, linked ledger account). GET /account/bank/list.json.
cashctrl_list_journalread
List journal entries
Book entries of the journal (date, title, debit and credit account, amount, reference), newest first, for the current fiscal period unless fiscal_period_id is set. GET /journal/list.json.
cashctrl_get_journal_entryread
Get a journal entry
One book entry by id, with its items for a collective entry. GET /journal/read.json.
cashctrl_list_ordersread
List orders
Sales or purchase documents (quotes, order confirmations, invoices, delivery notes, credit notes, vendor bills) with number, date, customer, status and total. Newest first. GET /order/list.json.
cashctrl_get_orderread
Get an order
One order (invoice, quote, purchase document) by id, with its items, totals and status. GET /order/read.json.
cashctrl_list_order_categoriesread
List order categories
The order categories (Quote, Invoice, Credit note, Purchase invoice and so on) with their statuses (Draft, Open, Paid) and the default accounts and sequence numbers. Use it to find category_id and status_id (type PURCHASE for purchase documents). GET /order/category/list.json.
cashctrl_list_personsread
List people
Customers, vendors, employees and other contacts (name, company, number, roles, addresses). GET /person/list.json.
cashctrl_get_personread
Get a person
One person or company by id, with addresses, contact data and bank accounts. GET /person/read.json.
cashctrl_list_articlesread
List inventory articles
Inventory articles (products and services) with number, name, price, stock and accounts. GET /inventory/article/list.json.
cashctrl_get_articleread
Get an inventory article
One inventory article by id. GET /inventory/article/read.json.
cashctrl_list_salary_statementsread
List salary statements
Payroll statements (employee, date, status, gross and net amounts), newest first. Sensitive personal data. GET /salary/statement/list.json.
cashctrl_get_salary_statementread
Get a salary statement
One payroll statement by id, with its salary items. Sensitive personal data. GET /salary/statement/read.json.
cashctrl_list_fiscal_periodsread
List fiscal periods
All fiscal periods (id, name, start, end, current flag). The id is the fiscal_period_id of the other tools. GET /fiscalperiod/list.json.
cashctrl_list_tax_codesread
List tax codes
The VAT tax codes (id, code, name, rates). The id is the tax_id of the write tools. GET /tax/list.json.
cashctrl_list_sequence_numbersread
List sequence numbers
The number sequences (for journal references, order numbers, customer numbers). The id is the sequence_number_id of the write tools. GET /sequencenumber/list.json.
cashctrl_list_currenciesread
List currencies
The currencies set up in CashCtrl with their exchange rates. GET /currency/list.json.
cashctrl_get_report_treeread
Get the report tree
The reports set up in CashCtrl (balance sheet, income statement, and so on) as a tree of collections and elements. The element id is the input of cashctrl_get_report_data. GET /report/tree.json.
cashctrl_get_report_dataread
Get report data
The data of one report element (for example the balance sheet or the income statement) for a fiscal period or a date range. GET /report/element/data.json.
cashctrl_create_journal_entrywrite
Create a journal entry
WRITE: changes the accounting records. Makes one request that is never repeated; check the result before trying again. Creates a manual book entry in the journal. Either a simple entry (debit_account_id, credit_account_id, amount) or a collective entry (items, whose debit and credit sums must match). POST /journal/create.json.
cashctrl_delete_journal_entrieswrite
Delete journal entries
WRITE: changes the accounting records. Makes one request that is never repeated; check the result before trying again. DELETES manual journal entries by id (entries created by orders or salary statements cannot be deleted this way). Deleted entries are gone from the books; confirm the ids with the user first. POST /journal/delete.json.
cashctrl_create_orderwrite
Create an order
WRITE: changes the accounting records. Makes one request that is never repeated; check the result before trying again. Creates ONE order document for ONE customer or vendor: a quote, invoice, credit note, purchase bill and so on, depending on category_id. Without status_id the first status of the category is used; a booking status (for example Open) also creates journal entries, so use a draft status unless the user asks otherwise. No e-mail is sent. POST /order/create.json.
cashctrl_update_order_statuswrite
Change the status of orders
WRITE: changes the accounting records. Makes one request that is never repeated; check the result before trying again. Sets the status of 1-20 orders (for example Draft to Open, or Open to Paid). A status can book journal entries or move stock, so the books change. POST /order/update_status.json.
cashctrl_delete_orderswrite
Delete orders
WRITE: changes the accounting records. Makes one request that is never repeated; check the result before trying again. DELETES orders (invoices, quotes, purchase documents) by id, with the journal entries they created. Deleted documents are gone; confirm the ids with the user first. POST /order/delete.json.
cashctrl_create_personwrite
Create a person or company
WRITE: changes the accounting records. Makes one request that is never repeated; check the result before trying again. Creates a customer, vendor or other contact. Give company, first_name or last_name (at least one). Search first with cashctrl_list_persons so no duplicate is created. POST /person/create.json.
cashctrl_usage_statusmeta
Usage status (free-tier meter)
Report the caller's current free-tier usage this month: calls used, monthly limit, remaining, and whether the cap is reached. Read-only; does not count against the meter.
cashctrl_request_featuremeta
Request a missing feature
Tell usefulapi that the user needs something the CashCtrl tools cannot do yet (a missing tool, field or filter). Call it only when the user asks for something none of the tools can do, and tell the user that you send the request. Do not call it for errors or for normal requests. Do not include personal data, credentials or customer records. Stored with the product name and the client type (for example Claude or Cursor), without the user's account. At most 5 requests per day. Does not count against the meter.
cashctrl_upgrademeta
Upgrade to Pro (unlimited)
Subscribe to the Pro plan for UNLIMITED CashCtrl tool calls (the free tier caps monthly usage). Choose monthly ($9/month) or yearly ($90/year — 2 months free) billing. Returns a Stripe Checkout link to open in your browser; after payment your account upgrades automatically. Does not count against the meter.
cashctrl_cancel_subscriptionmeta
Cancel the Pro subscription
Cancel the caller's CashCtrl Pro subscription at the end of the paid period (no refund for the current period; unlimited calls continue until then, then the free tier applies). Requires confirm: true. Run cashctrl_upgrade later to undo the cancel before the period ends. Does not count against the meter.

Pricing

PlanPriceLimit
Free$0100 tool calls / month
Proper organization$9/mo · $90/yrUnlimited

Pro covers this CashCtrl server only. Subscribe with cashctrl_upgrade (it returns a Stripe Checkout link). Cancel any time with cashctrl_cancel_subscription: Pro continues to the end of the paid period, with no refund for the current period, and running cashctrl_upgrade before then undoes the cancel. Or write to [email protected].

FAQ

Is this an official CashCtrl product?

No. usefulapi is an independent service. It is not affiliated with or endorsed by CashCtrl. The server calls the CashCtrl API with your own CashCtrl access, so it sees only the data that your account can see.

What do I need to connect?

The login page asks for your CashCtrl organization and CashCtrl API key. See Before you connect for where to find them.

Do I put my CashCtrl key or an Authorization header in the client config?

No. Add only the URL. Do not add an Authorization header or an API key to the client config. The server signs you in with OAuth: the login page asks for your CashCtrl organization and CashCtrl API key. If the config has such a header, remove it: some clients then send that header instead of the login token, and every call fails with 401.

How do you keep my CashCtrl credentials?

The login stores them encrypted in the authorization grant of your connection. The server uses them to call the CashCtrl API for you and to derive a private account id for usage metering. usefulapi does not show them on any page or in any reply. To stop all access, remove the connector and change or delete these credentials in CashCtrl.

Can the AI change my CashCtrl data?

Yes, if you approve it. 6 of the 28 CashCtrl tools can create or change data. The other 22 are marked read-only. Most MCP clients ask you to approve a tool call before it runs.

What does it cost?

The Free plan gives 100 tool calls / month. Pro costs $9/mo or $90/yr, with unlimited tool calls, for this CashCtrl server only. Run cashctrl_usage_status to see how many calls you used.

How do I subscribe or cancel?

Ask the AI to run cashctrl_upgrade: it returns a Stripe Checkout link. To cancel, run cashctrl_cancel_subscription. Pro continues to the end of the paid period.

What if a CashCtrl tool that I need is missing?

Tell the AI what you wanted to do. It can send the request with cashctrl_request_feature. We store the text with the server name, the type of AI client and the tool you tried, not with your account, and read every request when we plan new tools. You can send up to 5 requests per day.

Which AI clients can I use?

Any client that supports remote MCP servers (Streamable HTTP) with OAuth login: Claude (web and desktop), Claude Code, Cursor, VS Code, Windsurf and others.

This is a Model Context Protocol endpoint — meant to be connected from an AI client, not opened in a browser. An invalid_token response at the URL is the auth gate working as designed; clients authenticate automatically.

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