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PopNx MCPMCP servers for people who use AI · explained in plain words

KashFlow MCP by usefulapi

by m190version 1.14.3i★ –iRuns in the cloud
Registry nameio.usefulapi/kashflow

Install

Overview

Description from the maker (original English)

Read KashFlow invoices, customers, suppliers, banking and reports; add customers, notes.

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.
  • Can do 38 things (tools) kashflow_get_company_details, kashflow_list_customers, kashflow_get_customer, kashflow_get_customer_by_id …
  • 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://kashflow.usefulapi.io/mcp

Run this in your terminal

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

Open in Cursor

Or copy the settings yourself

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

{
  "mcpServers": {
    "kashflow": {
      "url": "https://kashflow.usefulapi.io/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": {
    "kashflow": {
      "type": "http",
      "url": "https://kashflow.usefulapi.io/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.

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://kashflow.usefulapi.io/mcp

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

Tool names and descriptions exactly as the server reported them on Nov 6, 2026. The maker wrote them, not us; we show them as plain text.

  • kashflow_get_company_details

    The KashFlow company: name, address, contact, VAT registration, currency, payment terms and business type. SOAP GetCompanyDetails.

  • kashflow_list_customers

    All 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_customer

    One customer by its KashFlow customer code (the short code shown in the customer list, e.g. ACME01). SOAP GetCustomer.

  • kashflow_get_customer_by_id

    One customer by its numeric CustomerID (as returned in other replies). SOAP GetCustomerByID.

  • kashflow_find_customer_by_email

    The customer whose e-mail address matches. SOAP GetCustomerByEmail.

  • kashflow_get_customer_balance

    What one customer owes: the total invoiced value and the outstanding balance. SOAP GetCustomerBalance.

  • kashflow_create_customer

    WRITE: 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_suppliers

    All suppliers (name, code, contact, email, phone, address, VAT number, payment terms), paged here: the reply says total and next_offset. SOAP GetSuppliers.

  • kashflow_get_supplier

    One supplier by its KashFlow supplier code. SOAP GetSupplier.

  • kashflow_create_supplier

    WRITE: 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_invoice

    One sales invoice by its invoice number: customer, dates, lines (description, quantity, rate, VAT), net, VAT, amount paid and a link. SOAP GetInvoice.

  • kashflow_list_invoices

    Sales 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_invoices

    All sales invoices of one customer, by numeric CustomerID (see kashflow_get_customer for the id), paged here. SOAP GetInvoicesForCustomer.

  • kashflow_list_unpaid_invoices

    All sales invoices not yet paid in full, paged here. SOAP GetInvoices_Unpaid.

  • kashflow_list_overdue_invoices

    All sales invoices past their due date and not paid in full, paged here. SOAP GetInvoices_Overdue.

  • kashflow_list_recent_invoices

    The most recently created sales invoices. SOAP GetInvoices_Recent.

  • kashflow_list_invoice_payments

    The payments recorded against one sales invoice (date, amount, method, bank account, note), by invoice number. SOAP GetInvoicePayment.

  • kashflow_list_payments_by_date

    Customer 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_notes

    The notes attached to one sales invoice, by its InvoiceDBID (the numeric id in invoice replies, not the invoice number). SOAP GetInvoiceNotes.

  • kashflow_add_invoice_note

    WRITE: 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_quotes

    All sales quotes (same shape as invoices), paged here. SOAP GetQuotes.

  • kashflow_get_receipt

    One purchase (supplier invoice / receipt) by its receipt number: supplier, dates, lines, net, VAT, amount paid. SOAP GetReceipt.

  • kashflow_list_recent_receipts

    The most recently created purchases (supplier invoices / receipts). SOAP GetReceipts_Recent.

  • kashflow_list_supplier_receipts

    All purchases (supplier invoices / receipts) of one supplier, by numeric SupplierID (see kashflow_get_supplier), paged here. SOAP GetReceiptsForSupplier.

  • kashflow_list_products

    The product catalogue (name, code, description, price, stock level), paged here. SOAP GetProducts.

  • kashflow_list_bank_accounts

    The bank accounts (AccountID, name, nominal code). SOAP GetBankAccounts.

  • kashflow_list_bank_transactions

    The 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_balance

    The balance of one bank account on a date (default today). SOAP GetBankBalance.

  • kashflow_list_nominal_codes

    The chart of accounts: nominal codes with their names. SOAP GetNominalCodes.

  • kashflow_list_vat_rates

    The VAT rates set up in the account. SOAP GetVATRates.

  • kashflow_list_projects

    The projects defined in the account (id, name). SOAP GetProjects.

  • kashflow_get_profit_and_loss

    The 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_sheet

    The 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_balance

    The trial balance for a date range: every nominal code with debit, credit and balance. SOAP GetTrialBalance.

  • kashflow_get_aged_debtors

    Who owes you money at a date (default today), aged into current, three periods and older, per customer. SOAP GetAgedDebtors.

  • kashflow_get_aged_creditors

    Who you owe money to at a date (default today), aged into current, three periods and older, per supplier. SOAP GetAgedCreditors.

  • kashflow_get_vat_report

    The VAT return figures (boxes 1 to 9) for a period, and whether it was submitted to HMRC. SOAP GetVATReport.

  • kashflow_get_kpis

    Key figures for a date range (income, expenses, profit and similar, as name/value pairs). SOAP GetKPIs.

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 6, 2026

  • ✓ Pass

    Maker matches the repo

    The registry name was verified against the domain usefulapi.io (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 59 ms (HTTP 200)

  • – Not applicable

    Sign-in with OAuth

    No sign-in needed

  • ✓ Pass

    No hidden instructions in tool descriptions

    Read 38 tool descriptions and found no hidden instructions to the AI

Compared with others in Accounting, finance & taxi

  • More stars than 0% of the other 1720 servers in this category
  • Published to the registry more recently than 97% of the other 1720 servers in this category
  • Basic checks equal to or better than 100% of the other 1720 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 KashFlow MCP by usefulapi 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 (1.14.3) reached the registry yesterday.

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
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SolidInvoice

by SolidInvoice

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

Runs in the cloud★ 981MITUpdated 7 days ago
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Korean tax calculation and tax-audit judgment MCP: 96 tools with statutory citations.

Runs on your computer★ 97MITUpdated today
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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.

KashFlow MCP by usefulapi

Use KashFlow from Claude, Cursor, or any MCP client — work with your invoices, customers, suppliers, banking and accounting reports. Hosted, no local install: connect with your own KashFlow credentials.

Live endpoint: https://kashflow.usefulapi.io/mcp · Homepage: https://usefulapi.io/kashflow

Connect

  • Claude (claude.ai, Desktop): open Customize → Connectors, click + Add → Add custom connector, and paste https://kashflow.usefulapi.io/mcp.
  • Claude Code: claude mcp add --transport http kashflow https://kashflow.usefulapi.io/mcp, then run /mcp to log in.
  • VS Code: Add to VS Code.
  • Cursor and other clients: add the URL as a remote MCP server:
{

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

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, and the login page asks for your KashFlow credentials.

Step-by-step setup, where to find your credentials, and FAQ: https://usefulapi.io/kashflow/

On first connect you'll enter your KashFlow username and password (or the separate API password; enable API access under Apps > API Settings). They are validated, stored per-user, and scoped to you — no keys in config files.

Tools

ToolTypeWhat it does
kashflow_get_company_detailsreadGet company details
kashflow_list_customersreadList customers
kashflow_get_customerreadGet customer by code
kashflow_get_customer_by_idreadGet customer by id
kashflow_find_customer_by_emailreadFind customer by email
kashflow_get_customer_balancereadGet customer balance
kashflow_create_customerwriteCreate customer
kashflow_list_suppliersreadList suppliers
kashflow_get_supplierreadGet supplier by code
kashflow_create_supplierwriteCreate supplier
kashflow_get_invoicereadGet invoice by number
kashflow_list_invoicesreadList invoices by date range
kashflow_list_customer_invoicesreadList a customer's invoices
kashflow_list_unpaid_invoicesreadList unpaid invoices
kashflow_list_overdue_invoicesreadList overdue invoices
kashflow_list_recent_invoicesreadList recent invoices
kashflow_list_invoice_paymentsreadList payments of an invoice
kashflow_list_payments_by_datereadList invoice payments by date range
kashflow_get_invoice_notesreadGet invoice notes
kashflow_add_invoice_notewriteAdd invoice note
kashflow_list_quotesreadList quotes
kashflow_get_receiptreadGet purchase by number
kashflow_list_recent_receiptsreadList recent purchases
kashflow_list_supplier_receiptsreadList a supplier's purchases
kashflow_list_productsreadList products
kashflow_list_bank_accountsreadList bank accounts
kashflow_list_bank_transactionsreadList bank transactions
kashflow_get_bank_balancereadGet bank balance
kashflow_list_nominal_codesreadList nominal codes
kashflow_list_vat_ratesreadList VAT rates
kashflow_list_projectsreadList projects
kashflow_get_profit_and_lossreadGet profit and loss
kashflow_get_balance_sheetreadGet balance sheet
kashflow_get_trial_balancereadGet trial balance
kashflow_get_aged_debtorsreadGet aged debtors
kashflow_get_aged_creditorsreadGet aged creditors
kashflow_get_vat_reportreadGet VAT report
kashflow_get_kpisreadGet KPIs
kashflow_usage_statusmetaUsage status (free-tier meter)
kashflow_request_featuremetaRequest a missing feature
kashflow_upgrademetaUpgrade to Pro or Pro+
kashflow_cancel_subscriptionmetaCancel the Pro subscription

read tools are read-only; write tools mutate data (clients should confirm them); meta tools report usage, manage your subscription or send a feature request.

Pricing

PlanPriceLimit
Free$050 tool calls / month
Pro (per account)$9/mo or $90/yr (2 months free)Unlimited*

\*Pro has a fair use limit of 10,000 tool calls a month on this server. For more, write to support@usefulapi.io.

Pro covers this server only. Subscribe with kashflow_upgrade (it returns a Stripe Checkout link). Cancel any time with kashflow_cancel_subscription: Pro continues to the end of the paid period, with no refund for the current period, and running kashflow_upgrade before then undoes the cancel. Or write to support@usefulapi.io.

License

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