# io.github.theluckystrike/trial-balance (mcpb · cash-book.mcpb)

Prove your books balance: every debit and credit for a month, to the minor unit.

- Trust score: 54/100 (low)
- Change this week: +3
- Registry status: active
- Liveness: live
- Owner verified: no
- Last scored: 2026-09-21

## Components

- mcpb · `cash-book.mcpb`: 54/100 (this document), [markdown](https://verifymcp.io/servers/theluckystrike-trial-balance/https-github-com-theluckystrike-mcp-servers-releases-download-v0-21-0-cash-book.md), [page](https://verifymcp.io/servers/theluckystrike-trial-balance/https-github-com-theluckystrike-mcp-servers-releases-download-v0-21-0-cash-book)

## Channel facts

- Registry: `mcpb`
- Package: `https://github.com/theluckystrike/mcp-servers/releases/download/v0.21.0/cash-book.mcpb`
- Version: `0.21.0`
- Transport: `stdio`

## Trust breakdown

How this component scores in each security and reliability category. Every signal is checked automatically from public evidence about the published package, including repeated runs of it in an isolated sandbox, and we only credit what we can confirm. Scores are 0–100 per category. Scoring method: https://verifymcp.io/docs/scoring (what has changed: https://verifymcp.io/docs/scoring/changelog)

Scored 2026-09-21.

- **Supply Chain Security**: 22/100
  - Malware scan not yet available for this package.
  - Known CVEs were checked across the 157 of 157 dependencies we could resolve, so this covers what we could see, not the whole tree.
  - No install/post-install scripts declared.
  - 63 of 157 dependencies flagged as unhealthy (2 deprecated).
- **Provenance & Transparency**: 45/100
  - Source repository is publicly reachable at the declared URL.
  - Provenance check failed: no build-provenance attestation is published.
  - Clear OSI-approved license (MIT).
  - Actively maintained (last published 14 days ago).
  - Disclosure check failed: no security disclosure policy was found in the source repository.
- **Schema Quality & AI Usability**: 86/100
  - 100% of prompts and resources have a non-trivial description (not blank, and not just the item's name).
  - AI-judged instruction clarity (excellent).
  - Tool/resource definitions use about 1026 tokens (~102/item across 10 items; 9 tools + 1 resources), lean.
  - Usage-examples check failed: none of the tools include examples.
- **Stability & Change Management**: 47/100
  - Stability observed for 14 of 30 days with no destabilising changes; credit accrues until the full window elapses.
- **Tool Coverage**: 100/100
  - 100% of tools have a non-trivial description (not blank, and not just the tool's name).
  - 100% of tool parameters carry a description.
- **Tool Safety**: 75/100
  - No prompt-injection markers were found in the server instructions, tool names or descriptions we captured.
  - 0 of 1 tool(s) whose name or description implies an irreversible operation declare an MCP destructiveHint annotation; "period_delete" implies "delete" and declares no destructiveHint at all, which the MCP spec reads as destructive by default.
  - An AI judge read all 10 captured unit(s) of tool text and found none that tries to manipulate the model reading it.
- **Capabilities**: 100/100
  - Implements a supported MCP spec version (2025-11-25); the latest is 2026-07-28.

## Install

- Download bundle: `https://github.com/theluckystrike/mcp-servers/releases/download/v0.21.0/cash-book.mcpb`

## Changelog

Every change recorded for this component, newest first. Days that predate change tracking, or that we cannot explain, say so: "we were watching and nothing happened" and "we were not watching" are different claims.

### 2026-09-20 (score 54, +1)

No change was recorded against any check on this day. Stability & Change Management went from 40 to 43. That category is still filling its 30-day observation window: 12 days of observed history at the previous scan, 13 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-09-18 (score 53, +1)

No change was recorded against any check on this day. Stability & Change Management went from 33 to 37. That category is still filling its 30-day observation window: 10 days of observed history at the previous scan, 11 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-09-16 (score 52, +1)

No change was recorded against any check on this day. Stability & Change Management went from 27 to 30. That category is still filling its 30-day observation window: 8 days of observed history at the previous scan, 9 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-09-14 (score 51, +3)

- [functional improvement] Stability: unverified → 0.23

### 2026-09-07 (score 48)

First indexed and scored.

## MCP tools (9)

### `ledger_build` (~112 tokens)

Build the ledger for a period

Derive the double-entry ledger for one period in one currency from the invoice, credit note, deposit, expense, bank and asset stores. Every line names its source server, source id and date. Nothing is written back.

Input parameters:

- `currency` (string): Needed when the period holds documents in more than one currency. Currencies are never added together
- `from` (string, required): First day of the period, YYYY-MM-DD
- `to` (string, required): Last day of the period, YYYY-MM-DD, inclusive

### `period_delete` (~101 tokens)

Delete a built period

Delete one built period from the register and give its free-tier slot back. Refused when a closed month's snapshot covers the period, and that month is named. No sibling book is touched.

Input parameters:

- `currency` (string): Needed only when the same date range was built in more than one currency
- `from` (string, required): First day of the period, YYYY-MM-DD
- `to` (string, required): Last day of the period, YYYY-MM-DD, inclusive

### `trial_balance` (~113 tokens)

Prove the ledger balances

Total the debits and the credits for a period and prove they are equal to the minor unit. When they are not, name the entries whose own legs do not add up and the source document behind each. Free and unlimited.

Input parameters:

- `currency` (string): Needed when the period holds documents in more than one currency. Currencies are never added together
- `from` (string, required): First day of the period, YYYY-MM-DD
- `to` (string, required): Last day of the period, YYYY-MM-DD, inclusive

### `ledger_lines` (~253 tokens)

List ledger lines

List the ledger lines for a period, filtered by account, source server or document id, and date. Each line carries its debit, credit and bank_ref, the same field the Pro CSV lays out as a column. Free and unlimited.

Input parameters:

- `account` (string): Only this account, e.g. cash, receivables, vat_output, or a category prefix such as "expenses"
- `currency` (string): Needed when the period holds documents in more than one currency. Currencies are never added together
- `from` (string, required): First day of the period, YYYY-MM-DD
- `limit` (integer): Maximum rows, default and ceiling 5000
- `since` (string): Only lines dated on or after this date, YYYY-MM-DD
- `source` (string): Only lines derived from this server: invoice, billing-docs, deposits, expense-tracker or asset-register
- `source_id` (string): Only lines derived from this document, e.g. INV-2026-0001
- `to` (string, required): Last day of the period, YYYY-MM-DD, inclusive
- `until` (string): Only lines dated on or before this date, YYYY-MM-DD

### `month_close` (~109 tokens)

Close a month

List what a month leaves unposted or inconsistent: invoices with no VAT rate, bank debits with no expense, deposits applied to unknown invoices. Then close it with a trial balance snapshot. Pro.

Input parameters:

- `currency` (string): Needed when the period holds documents in more than one currency. Currencies are never added together
- `dry_run` (boolean): Report the exceptions and the trial balance without writing the close. Default false
- `month` (string, required): The month to close, YYYY-MM

### `ledger_export_csv` (~142 tokens)

Export the ledger as CSV

Return the period's ledger lines as RFC 4180 CSV, one row per leg including bank_ref. No file is written. Pro, but ledger_lines returns these same fields free and unlimited; this only lays them out as CSV columns.

Input parameters:

- `account` (string): Only this account or category prefix
- `currency` (string): Needed when the period holds documents in more than one currency. Currencies are never added together
- `from` (string, required): First day of the period, YYYY-MM-DD
- `source` (string): Only lines derived from this server
- `to` (string, required): Last day of the period, YYYY-MM-DD, inclusive

### `ledger_report` (~105 tokens)

Report movement and balance per account

Report every account for a period with its debits, its credits, its movement and its closing balance, plus the purchase commitments held as a memo and the exceptions the period carries. Pro.

Input parameters:

- `currency` (string): Needed when the period holds documents in more than one currency. Currencies are never added together
- `from` (string, required): First day of the period, YYYY-MM-DD
- `to` (string, required): Last day of the period, YYYY-MM-DD, inclusive

### `license_status` (~23 tokens)

License status

Show whether this server runs in free or Pro mode and where to upgrade.

### `license_activate` (~42 tokens)

Activate license

Activate a Pro license key (format MCPL1.xxx.yyy). Verified offline and saved locally.

Input parameters:

- `key` (string, required): License key from the checkout confirmation page

## Diagnostics

Captured diagnostic sections: Provenance, Dependencies. The full working is on the page: https://verifymcp.io/servers/theluckystrike-trial-balance/https-github-com-theluckystrike-mcp-servers-releases-download-v0-21-0-cash-book#diagnostics

## Score history

- 2026-09-21: 54
- 2026-09-20: 54
- 2026-09-19: 53
- 2026-09-18: 53
- 2026-09-17: 52
- 2026-09-16: 52
- 2026-09-15: 51
- 2026-09-14: 51
- 2026-09-13: 48
- 2026-09-12: 48
- 2026-09-11: 48
- 2026-09-10: 48
- 2026-09-09: 48
- 2026-09-08: 48
- 2026-09-07: 48

## Common questions

### What is the io.github.theluckystrike/trial-balance MCP server?

io.github.theluckystrike/trial-balance is an MCP server listed in the public MCP registry as io.github.theluckystrike/trial-balance. Prove your books balance: every debit and credit for a month, to the minor unit. This page covers its MCPB bundle (https://github.com/theluckystrike/mcp-servers/releases/download/v0.21.0/cash-book.mcpb).

### Is the io.github.theluckystrike/trial-balance MCP server safe to use?

io.github.theluckystrike/trial-balance scores 54 out of 100 on VerifyMCP. It declares no install or post-install scripts. That is a record of what we were able to check automatically, not an endorsement. The category breakdown on this page shows every signal behind the number, including the ones we could not confirm.

### What tools does the io.github.theluckystrike/trial-balance MCP server expose?

io.github.theluckystrike/trial-balance exposes 9 tools: ledger_build, period_delete, trial_balance, ledger_lines, month_close, and 4 more. Their descriptions and schemas cost roughly 1,000 tokens of context every time the server is loaded.

### What licence is the io.github.theluckystrike/trial-balance MCP server under?

io.github.theluckystrike/trial-balance declares the MIT licence, which is OSI-approved. That covers the source only, and says nothing about the cost of any service it calls.

## Links

- Repository: https://github.com/theluckystrike/mcp-servers
- Website: https://mcp.zovo.one/s/cash-book
- Changelog RSS feed: https://verifymcp.io/servers/theluckystrike-trial-balance/https-github-com-theluckystrike-mcp-servers-releases-download-v0-21-0-cash-book.xml
- Changelog JSON feed: https://verifymcp.io/servers/theluckystrike-trial-balance/https-github-com-theluckystrike-mcp-servers-releases-download-v0-21-0-cash-book.json
- HTML version of this page: https://verifymcp.io/servers/theluckystrike-trial-balance/https-github-com-theluckystrike-mcp-servers-releases-download-v0-21-0-cash-book