MCP HeartbeatTHE MCP OBSERVATORY
Public workspace

Explore

Evidence for your next connection.

Independent measurements of remote MCP servers. Every observation has a timestamp.

Read-only probes

MCP server · Payments & trading

KashFlow MCP by usefulapi

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

Checks passed
13 / 22

1 failed · 8 not measured

Median response
63 ms

Median of successful probes over 7 days

30-day uptime
Not measured

Share of countable probes over 30 days, including daily rollups. Auth challenges are excluded.

Discovered tools
38

Tool definitions returned by this server

Independent monitoring

Health & checks

Status history

Outdated check

Last connection measurement is over 24 hours old. Current availability is unknown.

Last checked
Check summary by test group
Test areaPassedFailedUnmeasured
ConnectionCan a client connect and discover tools?
500
Reliability & speedDoes it respond consistently and quickly?
004
Access & authenticationWhat is required to use this server?
102
Tool qualityAre the tool definitions usable by an agent?
310
Publisher identityCan the publisher be traced to its source?
402

Unmeasured means there is not enough evidence to decide. How these checks work

Inspect individual checks 22 recorded

Core

  • Pass
    Reachable

    Latest probe returned HTTP 200 in 63 ms.

  • Pass
    Valid handshake

    protocolVersion 2025-11-25, serverInfo.name kashflow-mcp.

  • Pass
    Lists tools

    tools/list returned 38 tools.

  • Pass
    Current protocol

    Negotiated 2025-11-25. The bar is 2025-06-18 or newer.

  • Pass
    HTTPS

    The endpoint URL is https.

Performance

  • Not measured
    Fast (p50)

    Median latency 63 ms over 1 samples in 7 days. The bar is 1000 ms. Need at least 5 samples.

  • Not measured
    Consistent (p95)

    95th percentile 63 ms over 1 samples in 7 days. The bar is 3000 ms. Need at least 20 samples.

  • Not measured
    Reliable (uptime)

    1 of 1 attempts returned a tool list in 30 days (100%). The bar is 99%. Need at least 30 samples.

  • Not measured
    Stable tool list

    Fewer than two successful probes in 30 days, so tool-list stability is not measured.

Access

  • Pass
    Open access

    tools/list succeeded with no credential, and the record declares none.

  • Not measured
    Standard auth

    Auth is not required, so the OAuth metadata check does not apply.

  • Not measured
    Free tier cited

    No publisher quote has been checked.

Tools

  • Pass
    Tools described

    Every tool description is at least 20 characters.

  • Pass
    Valid input schemas

    Every inputSchema is a JSON Schema object.

  • Fail
    Parameters documented

    77 of 99 parameters have a description (78%). The bar is 80%.

  • Pass
    Safety hints

    Every tool sets readOnlyHint or destructiveHint.

Publisher

  • Pass
    Verified namespace

    Listed in the Official MCP Registry.

  • Pass
    Website matches publisher

    The website host matches the reverse-domain namespace.

  • Pass
    Source repo linked

    A repository URL is on file.

  • Not measured
    Repo owner matches

    This namespace is not an io.github login, so the owner comparison does not apply.

  • Pass
    Recently updated

    Updated 2026-11-10T23:34:18.173163Z, within 180 days.

  • Not measured
    Open-source licence

    The GitHub licence lookup has not returned an OSI result yet.

Start using KashFlow MCP by usefulapi

Connect to this server

Choose your client, copy the configuration, then enable the server in your client’s MCP settings.

Run this command in your terminal, then restart Claude Code.

Claude Code

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

Capabilities

Tools 38

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.

Discovered
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.

Discovered
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.

Discovered
kashflow_find_customer_by_email

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

Discovered
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.

Discovered
kashflow_get_aged_debtors

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

Discovered
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.

Discovered
kashflow_get_bank_balance

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

Discovered
kashflow_get_company_details

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

Discovered
kashflow_get_customer

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

Discovered
kashflow_get_customer_balance

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

Discovered
kashflow_get_customer_by_id

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

Discovered
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.

Discovered
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.

Discovered
kashflow_get_kpis

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

Discovered
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.

Discovered
kashflow_get_receipt

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

Discovered
kashflow_get_supplier

One supplier by its KashFlow supplier code. SOAP GetSupplier.

Discovered
kashflow_get_trial_balance

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

Discovered
kashflow_get_vat_report

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

Discovered
kashflow_list_bank_accounts

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

Discovered
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.

Discovered
kashflow_list_customer_invoices

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

Discovered
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.

Discovered
kashflow_list_invoice_payments

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

Discovered
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.

Discovered
kashflow_list_nominal_codes

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

Discovered
kashflow_list_overdue_invoices

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

Discovered
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.

Discovered
kashflow_list_products

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

Discovered
kashflow_list_projects

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

Discovered
kashflow_list_quotes

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

Discovered
kashflow_list_recent_invoices

The most recently created sales invoices. SOAP GetInvoices_Recent.

Discovered
kashflow_list_recent_receipts

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

Discovered
kashflow_list_supplier_receipts

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

Discovered
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.

Discovered
kashflow_list_unpaid_invoices

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

Discovered
kashflow_list_vat_rates

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

Discovered

Recent measurements

Probe history

View status
Latest stored probes. Raw probe rows are kept for 14 days.
CheckedResultResponseTools
Connected63 ms38