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Two ways to run it, both free to start. Open mcp.zovo.one/mcp/connect, copy the statement-of-account URL and paste it into any client that takes a URL. It already carries a free token, so there is nothing to install, no account and no header to set. The URL is https://mcp.zovo.one/mcp/statement-of-account/t/<token>. The token is not optional: the bare https://mcp.zovo.one/mcp/statement-of-account connects and lists its tools and then answers every tool call with HTTP 401, so use the link from /mcp/connect or send Authorization: Bearer <token>. Or download statement-of-account.mcpb and double-click it in Claude Desktop.
In the official MCP Registry (io.github.theluckystrike/statement-of-account).
Send a client the one document that answers "what do I actually owe you". This MCP server
reads the books you already keep in this suite, your invoices, your credit notes and your
deposits, and turns them into a statement of account for a period: the balance you were
carrying at the start, every invoice you issued, every payment that came in, every credit
note you gave, and the balance at the end. It ages what is still open into 0-30, 31-60,
61-90 and over 90 days past due, so you can see at a glance which client is the problem;
it writes the statement as pasteable text or as an A4 PDF that looks like your invoices;
and it drafts the chaser, at a friendly, a firm or a final level. It never writes anything
back into your invoices, and it never invents a late fee.
Built by theluckystrike.
npm publish for @theluckystrike/mcp-statement-of-account is pending, so npx -y @theluckystrike/mcp-statement-of-account returns 404 today. Until then, the .mcpb one-click bundle or a clone+build is the working path.
~/Library/Application Support/Claude/claude_desktop_config.json (macOS) or
%APPDATA%\Claude\claude_desktop_config.json (Windows):
{
"mcpServers": {
"statement-of-account": {
"command": "npx",
"args": ["-y", "@theluckystrike/mcp-statement-of-account"]
}
}
}
claude mcp add statement-of-account -- npx -y @theluckystrike/mcp-statement-of-account
~/.cursor/mcp.json (global) or .cursor/mcp.json (project), same entry as Claude Desktop.
| tool | what it does |
|---|---|
statement_build |
One client's statement for a period: opening balance, invoices issued, payments received, credit notes, deposits applied, closing balance. Every figure in minor units and formatted |
statement_aging |
What is owed, split into 0-30, 31-60, 61-90 and over 90 days past the due date as at a chosen date, for one client or for everyone, per currency |
statement_text |
The same statement as plain text, movements in date order, ready to paste into an email |
statement_pdf |
The same statement as an A4 PDF titled STATEMENT OF ACCOUNT, on the same page layout as your invoices and credit notes |
dunning_text |
A payment chaser at level 1 (friendly), 2 (firm) or 3 (final demand), with the overdue list and your bank details |
statements_report |
Every client at once: what is outstanding per currency, aged, and the oldest overdue invoice in the book |
license_status |
Free or Pro, and where to upgrade |
license_activate |
Activate a Pro key |
Plus the statement://sources resource, which says which of the three stores this server
could read and how many rows each holds, and the chase_overdue prompt.
| Free | Pro | |
|---|---|---|
| Statements built | 5 a calendar month | unlimited |
| Rebuilding a statement already built | unlimited | unlimited |
statement_aging |
unlimited | unlimited |
statement_text |
yes | yes |
dunning_text levels 1 and 2 |
yes | yes |
dunning_text level 3, final demand |
no | yes |
statement_pdf |
no | yes |
statements_report |
no | yes |
| PDF footer credit | shown | removed |
Aging is free and unlimited on purpose. "Who owes me money" is the question this whole server exists for, and a free tier that hides it is a demo rather than a tool. The meter is on the statement, the document that actually goes to a client, and it counts distinct statements: the same client, period and currency built again is free forever.
Get Pro, one-time, lifetime, for this server. Keys verify offline. Or the 48-server bundle for $39.
Nothing here is typed in twice. The server reads three stores and writes to none of them:
| store | server | what is taken from it |
|---|---|---|
invoices.json |
mcp-invoice |
the invoices, their due dates and how much of each is paid |
credit-notes.json |
mcp-billing-docs |
the credit notes, already stored with a negative sign |
deposits.json |
mcp-deposits |
the deposit applications, and what is still held |
A store you have never installed is simply absent, and the statement is built without it. A store that is on disk and cannot be READ is a different thing entirely, and is reported as such on every figure, because a balance that could not be computed must never be shown as a balance of nothing owed. The one store the server refuses to work without is the invoice ledger.
Aging a past date with today's payment figures is not slightly wrong, it is silently
empty. Aging is usually written as "take each invoice, subtract what has been paid, and
bucket by the due date". The subtraction is the part nobody dates. On the worked month in
test/_client.mjs, aged at 2026-06-10, the two rules give:
| rule | outstanding | overdue |
|---|---|---|
| as at 2026-06-10 | 2,500.00 EUR | 500.00 EUR, 31 days late |
today's paid_minor |
1,700.00 EUR | 0.00 EUR |
The naive rule understates what was owed by 800.00 of 2,500.00, a third of the balance,
and it reports NOTHING overdue on a date when an invoice was a month late, because a
payment that arrived two days later has already been subtracted from it. The failure is
invisible: the answer looks tidy, the buckets add up, and it cannot be reproduced next
month because the input keeps moving. So every figure in statement_aging is taken as at
the date asked for, in both directions: an invoice issued after it is not on the books, a
payment made after it has not happened, and a credit note issued after it has not been
given.
The second thing measurement showed: paid_minor and payments[] on an invoice do not
have to agree, and routinely do not. invoice_mark_paid writes both, but deposit_apply
raises paid_minor and appends no payment row at all, and an invoice created before that
field existed has no rows either. Reconstructing receipts from payments[] would have
lost 300.00 of the worked month's 900.00 of receipts, a third of the cash, with no error
anywhere. paid_minor is treated as the authority and the rows are only the attribution.
All data stays on your machine. The invoices, credit notes and deposits are read from
${XDG_DATA_HOME:-~/.local/share}/mcp-servers/, this server's own register of built
statements is written to .../mcp-servers/statement-of-account/, and nothing is sent
anywhere. There is no network call in this server at all. License keys verify offline.
MIT. Support: support@zovo.one
Built by theluckystrike.
Any MCP client (Claude, Cursor, Windsurf, VS Code) can read this repository's documentation directly via GitMCP - no install:
Three prompts that scored 3 of 3, measured in round 28, 2026-09-06. Paste one in as it is written.
Look at the statement://sources resource first to confirm which of the three books (invoices, credit notes, deposits) this server can see for Studio One. Then build a statement of account for Acme Ltd for June 2026 (2026-06-01 to 2026-06-30) in EUR, and tell me the opening balance, everything that moved during the month, and the closing balance.
Paste this into Claude with the server connected.
What it did, measured in round 28, 2026-09-06: Read statement://sources first (reported the real profile name, Nova Studio, rather than the prompt's own "Studio One", which is correct behaviour, not a defect: it relayed what the resource actually said).
Now give me the aging as at today, for every client, across all currencies. Tell me who owes what and how overdue it is.
Paste this into Claude with the server connected.
What it did, measured in round 28, 2026-09-06: One statement_aging call with no client filter and no as_of resolved to the host day 2026-09-06 (one day later than round 26's 2026-09-05) and returned Acme Ltd 2,400.00 overdue (INV-2026-0002 1,700.00 at 63 days, INV-2026-0003 700.00 at 73 days) plus 100.00 unapplied credit, and Beta GmbH 500.00 overdue at 83 days.
Now I need the aging as at 2026-06-10 specifically, not today, for Acme Ltd. INV-2026-0001 was paid in two instalments, one before 2026-06-10 and one after. Tell me exactly what was outstanding and what was overdue as at 2026-06-10, using only what was true on that date.
Paste this into Claude with the server connected.
What it did, measured in round 28, 2026-09-06: One statement_aging call with as_of 2026-06-10 returned outstanding 2,500.00 and overdue 500.00 (31 days late on INV-2026-0001), matching round 26 stdio and the README worked example to the cent.
On the free tier for this path: statement_aging is free and unlimited on every tier, for one client or for everyone: who owes me money is the question this server exists for, and a free tier that hides it is a demo. The meter is on the document that goes to a client, five distinct statements a calendar month, counted by client, period and currency, so rebuilding one already in the register is free forever. Plain-text statements and dunning at the friendly and firm levels are free.
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