KashFlow MCP
Read and manage KashFlow invoices, customers, suppliers, banking and financial reports.
Connect to KashFlow accounting software to view invoices, customers, suppliers, bank accounts and transactions. Add customers and notes. Generate profit and loss, balance sheet, VAT reports and aged debtor/creditor lists.
Try asking Muse: "Show me my unpaid invoices and which customers owe me the most money."
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Source: Found in the official MCP Registry (io.usefulapi/kashflow) · First listed October 28, 2026
Last 24 hours
Each bar is one check, every 15 minutes. Green means it answered. Last checked 40 min ago.
Is it safe to connect?
What Muse can see: It does not ask you to sign in, so it cannot see your accounts. It only sees what Muse sends it from your request.
Before it acts: Read what Muse plans to do before you approve it, and remove the app from Muse when you stop using it.
musedirectory.ai is not part of Meta. More about how Muse handles your information
How to add it to Muse
Not in Muse's Connectors list yet, but Muse can still use it. Copy the request below and paste it into Muse. Muse asks before it shares anything with the app's site. Meta does not review apps used this way, so only use ones you trust. We tested this in the Muse app on September 24, 2026: Muse used an app's link directly this way and returned a live answer.
https://kashflow.usefulapi.io/mcpNot in Muse's Connectors list yet. Muse can still use it: its page gives you a request to paste into Muse.
Also use it in ChatGPT or Claude
KashFlow MCP is a remote MCP server, so any assistant that can add a custom connector by link can use it. Same link, same tools.
Add it to ChatGPT
- 1
Open ChatGPT settings
In ChatGPT, open Settings, then Connectors (called Apps & Connectors on some accounts).
- 2
Turn on developer mode
Under Advanced settings, switch on Developer mode. That is what lets you add a connector by link.
- 3
Create the connector
Choose Create, give it a name, paste the link as the MCP server URL, and save. If it needs a sign-in, ChatGPT asks for it here.
- 4
Use it in a chat
Start a chat, open the tools menu, pick the connector, and ask. ChatGPT asks before it runs a tool the first time.
Custom connectors need a paid ChatGPT plan, and on Team, Enterprise and Edu accounts only an admin can add them. Our "Working" label means the server answered us; it cannot tell whether your plan lets you add it. All connectors that work in ChatGPT
Add it to Claude
- 1
Open Claude settings
In Claude, open Settings, then Connectors.
- 2
Add a custom connector
Choose Add custom connector, give it a name, and paste the link.
- 3
Connect and use it
If it needs a sign-in, Claude sends you to it. Then turn the connector on in a chat from the tools menu and ask.
Custom connectors are available on paid Claude plans; on Team and Enterprise accounts an admin may need to add them. Our "Working" label means the server answered us; it cannot tell whether your plan lets you add it. All connectors that work in Claude
https://kashflow.usefulapi.io/mcpWhat people ask Muse to do
Technical details: safety screening, tools, response time and recent checks
Response time at the last check: 15ms. Worked in 100% of checks over 30 days.
Screening · October 29, 2026
Screened, no issues found
Screening looks for known threats and hidden instructions at the time of the check, and runs again weekly and whenever the tool list changes. It cannot see the server's code, so only connect what you need and review what Muse asks to do. How screening works.
Tools · 38
kashflow_get_company_detailsThe KashFlow company: name, address, contact, VAT registration, currency, payment terms and business type. SOAP GetCompanyDetails.kashflow_list_customersAll customers (name, code, contact, email, phone, address, VAT number, payment terms, notes), paged here: the reply says total and next_offset. SOAP GetCustomers.kashflow_get_customerOne customer by its KashFlow customer code (the short code shown in the customer list, e.g. ACME01). SOAP GetCustomer.kashflow_get_customer_by_idOne customer by its numeric CustomerID (as returned in other replies). SOAP GetCustomerByID.kashflow_find_customer_by_emailThe customer whose e-mail address matches. SOAP GetCustomerByEmail.kashflow_get_customer_balanceWhat one customer owes: the total invoiced value and the outstanding balance. SOAP GetCustomerBalance.kashflow_create_customerWRITE: create a new customer. The code must be unique (KashFlow refuses a code that exists) and nothing existing is changed. Returns the new CustomerID. SOAP InsertCustomer.kashflow_list_suppliersAll suppliers (name, code, contact, email, phone, address, VAT number, payment terms), paged here: the reply says total and next_offset. SOAP GetSuppliers.kashflow_get_supplierOne supplier by its KashFlow supplier code. SOAP GetSupplier.kashflow_create_supplierWRITE: create a new supplier. The code must be unique (KashFlow refuses a code that exists) and nothing existing is changed. Returns the new SupplierID. SOAP InsertSupplier.kashflow_get_invoiceOne sales invoice by its invoice number: customer, dates, lines (description, quantity, rate, VAT), net, VAT, amount paid and a link. SOAP GetInvoice.kashflow_list_invoicesSales invoices dated within a range (inclusive; a bare end date means the end of that day), paged here. Dates are yyyy-mm-dd. SOAP GetInvoicesByDateRange.kashflow_list_customer_invoicesAll sales invoices of one customer, by numeric CustomerID (see kashflow_get_customer for the id), paged here. SOAP GetInvoicesForCustomer.kashflow_list_unpaid_invoicesAll sales invoices not yet paid in full, paged here. SOAP GetInvoices_Unpaid.kashflow_list_overdue_invoicesAll sales invoices past their due date and not paid in full, paged here. SOAP GetInvoices_Overdue.kashflow_list_recent_invoicesThe most recently created sales invoices. SOAP GetInvoices_Recent.kashflow_list_invoice_paymentsThe payments recorded against one sales invoice (date, amount, method, bank account, note), by invoice number. SOAP GetInvoicePayment.kashflow_list_payments_by_dateCustomer payments received within a date range (date, amount, invoice, method, bank account). KashFlow returns them a page at a time: set page_number 1, 2, ... until a page comes back empty. Dates are yyyy-mm-dd. SOAP GetInvoicePaymentsByDateRange.kashflow_get_invoice_notesThe notes attached to one sales invoice, by its InvoiceDBID (the numeric id in invoice replies, not the invoice number). SOAP GetInvoiceNotes.kashflow_add_invoice_noteWRITE: add a note to a sales invoice, by its InvoiceDBID (the numeric id in invoice replies). Existing notes and the invoice are not changed. SOAP InsertInvoiceNote.kashflow_list_quotesAll sales quotes (same shape as invoices), paged here. SOAP GetQuotes.kashflow_get_receiptOne purchase (supplier invoice / receipt) by its receipt number: supplier, dates, lines, net, VAT, amount paid. SOAP GetReceipt.kashflow_list_recent_receiptsThe most recently created purchases (supplier invoices / receipts). SOAP GetReceipts_Recent.kashflow_list_supplier_receiptsAll purchases (supplier invoices / receipts) of one supplier, by numeric SupplierID (see kashflow_get_supplier), paged here. SOAP GetReceiptsForSupplier.kashflow_list_productsThe product catalogue (name, code, description, price, stock level), paged here. SOAP GetProducts.kashflow_list_bank_accountsThe bank accounts (AccountID, name, nominal code). SOAP GetBankAccounts.kashflow_list_bank_transactionsThe transactions of one bank account (date, money in/out, VAT, type, comment, customer/supplier), by AccountID from kashflow_list_bank_accounts, paged here. SOAP GetBankTransactions.kashflow_get_bank_balanceThe balance of one bank account on a date (default today). SOAP GetBankBalance.kashflow_list_nominal_codesThe chart of accounts: nominal codes with their names. SOAP GetNominalCodes.kashflow_list_vat_ratesThe VAT rates set up in the account. SOAP GetVATRates.kashflow_list_projectsThe projects defined in the account (id, name). SOAP GetProjects.kashflow_get_profit_and_lossThe profit and loss report for a date range: turnover, cost of sales, gross profit, expenses and net profit, with the lines of each section. SOAP GetProfitAndLoss.kashflow_get_balance_sheetThe balance sheet at a date (default today): fixed assets, current assets, current liabilities, capital and reserves with the lines of each. SOAP GetBalanceSheet.kashflow_get_trial_balanceThe trial balance for a date range: every nominal code with debit, credit and balance. SOAP GetTrialBalance.kashflow_get_aged_debtorsWho owes you money at a date (default today), aged into current, three periods and older, per customer. SOAP GetAgedDebtors.kashflow_get_aged_creditorsWho you owe money to at a date (default today), aged into current, three periods and older, per supplier. SOAP GetAgedCreditors.kashflow_get_vat_reportThe VAT return figures (boxes 1 to 9) for a period, and whether it was submitted to HMRC. SOAP GetVATReport.kashflow_get_kpisKey figures for a date range (income, expenses, profit and similar, as name/value pairs). SOAP GetKPIs.Recent checks
Link
https://kashflow.usefulapi.io/mcpQuestions about KashFlow MCP in Muse
How do I connect KashFlow MCP to Muse?
Not in Muse's Connectors list yet, but Muse can still use it. Paste this into Muse: "Use KashFlow MCP to help me. It is a free service with an MCP server at https://kashflow.usefulapi.io/mcp. It does not need an API key. Ask me before you share anything with it." Muse asks before it shares anything with the app's site. Meta does not review apps used this way, so only use ones you trust. We tested this in the Muse app on September 24, 2026: Muse used an app's link directly this way and returned a live answer.
Is KashFlow MCP working right now?
At the last check (October 29, 2026, 11:16 UTC) the endpoint was working, answering in 15ms. Over the last 7 days it answered 100% of health checks. It is checked every 15 minutes.
Is KashFlow MCP safe to connect to Muse?
It was screened on October 29, 2026 with the result "screened, no issues found". Screening checks the domain against threat feeds and reads the tools for hidden instructions and requests for passwords or card numbers. It cannot see the server's code, so grant only the access you need.
What can KashFlow MCP do in Muse?
It exposes 38 tools, including kashflow_get_company_details, kashflow_list_customers, kashflow_get_customer, kashflow_get_customer_by_id. For example, you could ask Muse: "Show me my unpaid invoices and which customers owe me the most money."
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