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Install it in one click. Download supplier-statement-check.mcpb and double-click it in Claude Desktop. There is no hosted URL for this one. The other servers answer at https://mcp.zovo.one/mcp/<server>/t/<token>; this one has no endpoint yet, and that address returns 404 for it. Run it from the bundle above or from a clone.

Supplier statement reconciliation MCP server

Compare a supplied supplier statement with an accounts-payable open-item export. Find invoices or credit notes present on only one side, conflicting outstanding amounts or dates, and repeated references that cannot be paired safely. This local MCP server preserves every original row and explains each finding. It checks two supplied open-item lists; it does not reconcile opening/closing balances, match payments, connect to an ERP, read PDFs, or approve payment.

Built by theluckystrike. MIT. Support: support@zovo.one.

Try it before installing

Run the free supplier statement example in your browser. Use the synthetic example to inspect missing items and amount/date discrepancies. The browser proof and this server use the same comparison core. No account or API key is needed for the local server's free tier. Product and installation options.

These comparisons require the relevant source data. They do not retrieve missing documents or authorize a payment. Full diagnostics and CSV remain free; the paid upgrade removes only the limit on saved report count.

Install

Requires Node.js 18 or newer and an MCP client. Claude Desktop can open the supplier-statement-check.mcpb v0.25.0 package. Other clients can build the source below. The npm package is not published; npx @theluckystrike/mcp-supplier-statement-check is not an installation route.

git clone https://github.com/theluckystrike/mcp-servers.git
cd mcp-servers
npm install
node scripts/bootstrap-timezone.mjs
npm run build --workspace @theluckystrike/mcp-license
npm run build --workspace @theluckystrike/mcp-supplier-statement-check

These commands build only the shared license dependency and this server. Replace /absolute/path below with the source checkout location. If your MCP client cannot find node, use its full executable path.

Claude Desktop: merge into mcpServers in ~/Library/Application Support/Claude/claude_desktop_config.json on macOS, or %APPDATA%\Claude\claude_desktop_config.json on Windows:

{"mcpServers":{"supplier-statement-check":{"command":"node","args":["/absolute/path/mcp-servers/servers/supplier-statement-check/dist/index.js"]}}}

Claude Code:

claude mcp add supplier-statement-check -- node /absolute/path/mcp-servers/servers/supplier-statement-check/dist/index.js

Cursor: merge into .cursor/mcp.json in the project or ~/.cursor/mcp.json:

{"mcpServers":{"supplier-statement-check":{"type":"stdio","command":"node","args":["/absolute/path/mcp-servers/servers/supplier-statement-check/dist/index.js"]}}}

VS Code: put the entry under servers in .vscode/mcp.json:

{"servers":{"supplier-statement-check":{"type":"stdio","command":"node","args":["/absolute/path/mcp-servers/servers/supplier-statement-check/dist/index.js"]}}}

Windsurf's legacy Cascade agent: use the Claude Desktop mcpServers entry in ~/.codeium/windsurf/mcp_config.json. That file applies to Cascade; a different agent can use a different configuration route.

Cline: open MCP Servers, Configure, Configure MCP Servers, and add:

{"mcpServers":{"supplier-statement-check":{"type":"stdio","command":"node","args":["/absolute/path/mcp-servers/servers/supplier-statement-check/dist/index.js"],"disabled":false,"autoApprove":[]}}}

These are local stdio configurations. This server has no hosted endpoint or browser chat connector. Reconnect your client, call license_status, then run the example below. Tool discovery alone does not verify a comparison.

Tools

A missing item and a conflicting amount

Call supplier_statement_check with these synthetic inputs:

{
  "as_of": "2026-10-26",
  "statement_records": [
    {"record_id":"S1","entity_id":"UK-1","supplier_id":"V-9","currency":"USD","document_type":"invoice","document_reference":"INV-001","document_date":"2026-10-01","outstanding_minor":12500},
    {"record_id":"S2","entity_id":"UK-1","supplier_id":"V-9","currency":"USD","document_type":"invoice","document_reference":"INV-002","document_date":"2026-10-02","outstanding_minor":20000},
    {"record_id":"S3","entity_id":"UK-1","supplier_id":"V-9","currency":"USD","document_type":"credit_note","document_reference":"CR-003","document_date":"2026-10-03","outstanding_minor":5000}
  ],
  "ledger_records": [
    {"record_id":"L1","entity_id":"UK-1","supplier_id":"V-9","currency":"USD","document_type":"invoice","document_reference":"INV-001","document_date":"2026-10-01","outstanding_minor":12500},
    {"record_id":"L2","entity_id":"UK-1","supplier_id":"V-9","currency":"USD","document_type":"invoice","document_reference":"INV-002","document_date":"2026-10-04","outstanding_minor":19000},
    {"record_id":"L4","entity_id":"UK-1","supplier_id":"V-9","currency":"USD","document_type":"invoice","document_reference":"INV-004","document_date":"2026-10-05","outstanding_minor":7000}
  ],
  "save": false
}

The result has four groups: one match, one discrepancy with both amount_mismatch and date_mismatch, one item only in the statement, and one only in the ledger. Every supplied row remains available. The credit note's amount is positive and is not netted against invoices. No balance, loss or recoverable amount is calculated. If you add another INV-001 within either side's exact scope, its entire group becomes ambiguous_reference; the tool does not choose the convenient amount pair.

Exact input contract and comparison rules

Supply a real YYYY-MM-DD as_of date and two arrays, each with 0–1000 records. At least one side must contain a record. The date declares the intended common snapshot; the tool cannot verify export freshness and does not filter rows by date. Prepare both lists with consistent open-item scope before comparing them.

Each record requires record_id, entity_id, supplier_id, uppercase three-letter currency, document_type (invoice or credit_note), document_reference, real ISO document_date, and positive safe-integer outstanding_minor. IDs/references are 1–160 characters without surrounding whitespace or control characters. IDs must be unique within a side; the two sides may use the same ID. Unknown fields, impossible dates, year 0000, zero/negative/decimal/unsafe amounts and over-limit arrays are rejected. Currency syntax is checked without an external currency list.

Amounts are currency minor units: USD 12500 means $125.00. Credit notes use positive absolute outstanding amounts and compare only with credit notes. Neither side is required to use a common supplier name, but its exact supplier_id must agree. Different entities, suppliers, currencies and document types remain separate.

The join key is exact (entity_id, supplier_id, currency, document_type, document_reference). Leading zeros, punctuation, case, accents, Unicode forms and lookalike characters remain significant. No supplier inference, reference cleanup, greedy amount matching, payment allocation or currency conversion occurs.

Missing rows and disagreements can result from export timing or scope. Repeated references can be legitimate. Even complete agreement between supplied lists is not proof that the supplier balance is correct: two incomplete exports can agree. The status no_discrepancies_in_supplied_open_items makes only that limited observation. Saved reports never become hidden cross-call history; include both lists every time.

Groups and rows are deterministically sorted. Each source row belongs to exactly one group; the engine does not expand every possible record pair. A group refers to source IDs qualified by their statement/ledger side, so identical IDs across sides cannot overwrite evidence. No network or telemetry requests are made.

Free evidence, previews and CSV

Every check returns retrieval.report_id. Unsaved previews use preview:<UUID> and remain in memory for 30 minutes for the last two checks in this process. A third check, restart or expiry may evict a preview; resubmit the free check. Saved UUIDs persist on disk. Preview data is not written to a browser or filesystem.

report_page supports statement_records, ledger_records, groups, and group_members. Group pages contain summary metadata and side-specific member counts. Read complete source members with section:"group_members" and the exact group_id. Follow next_offset until null. Pages and CSV remain free even after the saved-report cap is reached.

Responses use a 512 KiB escaped MCP text-envelope budget. Larger reports return a paginated overview; pages can contain fewer rows than requested to fit that budget. CSV uses one row per original source record with its side, original fields, group and reasons. Formula-like text is escaped; JSON source values are unchanged. Export returns CSV text, never writes to a supplied filename, and repeats the header on each page. Retain one header when joining pages. Follow actual returned and next_offset values rather than assuming the requested count was returned.

Free and Pro

save:true at the free cap returns the diagnostic and free preview with saved:false, save_error:"free_saved_report_cap", and an upgrade link. Delete a saved report to reuse a slot. Storage failures also preserve the diagnostic.

Get Pro: $19 one time. All servers: $39 bundle. Set MCP_LICENSE_KEY or call license_activate; keys verify offline. Pro removes only the saved-report count cap. It adds no accounting data, accuracy guarantee, ERP access or safety approval. The saved-history upgrade is a commercial hypothesis, not proven ROI.

All data stays local. Reports live under ${XDG_DATA_HOME:-~/.local/share}/mcp-servers/supplier-statement-check/. XDG_DATA_HOME must be absolute with real directory ancestors. Private JSON files are written atomically with cross-process mutation locks. Reads validate original inputs and recompute evidence rather than trusting edited results. License activation writes the shared local license configuration. Manage accounting-data access, retention and backups yourself.

Development

npm run build --workspace @theluckystrike/mcp-supplier-statement-check
npm test --workspace @theluckystrike/mcp-supplier-statement-check

Build Docker from the monorepo root with docker build -f servers/supplier-statement-check/Dockerfile .. The standalone mirror receives its own self-contained Dockerfile during mirror generation. Tests cover the comparison oracle, strict inputs, scope/Unicode isolation, complete source coverage, ambiguity, large free pages/CSV, safe storage, concurrent save caps and actual stdio calls. Signed-license tests use the existing local private signer when available and skip if it is absent. Private signing keys are not packaged or required by users.

First five minutes

Three prompts that scored 3 of 3, measured in round 47, 2026-10-26. Paste one in as it is written.

Synthetic operator checks with frozen structured arguments through actual MCP stdio. These prompts describe the tasks; model translation, installation time and buyer outcomes were not tested.

Compare this supplier statement invoice with its AP open item. Preserve both original amounts and dates when the same exact reference disagrees.

Paste this into Claude with the server connected.

What it did, measured in round 47, 2026-10-26: Actual stdio returned 1 exact-key groups, 0 matching and 1 requiring review, retaining all 2 original source items.

Find which exact invoice references appear only on the supplier statement or only in the AP ledger, retaining every source item.

Paste this into Claude with the server connected.

What it did, measured in round 47, 2026-10-26: Actual stdio returned 2 exact-key groups, 0 matching and 2 requiring review, retaining all 2 original source items.

The supplier statement repeats the same invoice reference twice. Keep all three source items and do not guess which statement row matches the ledger.

Paste this into Claude with the server connected.

What it did, measured in round 47, 2026-10-26: Actual stdio returned 1 exact-key groups, 0 matching and 1 requiring review, retaining all 3 original source items.

On the free tier for this path: Full diagnostics for up to 1000 records per side, complete free evidence pages and CSV; store 3 reports at a time.

Or the 49-server bundle for $39.

Set it up in your client

Exact config path, entry and caveats: Claude Desktop · Claude Code · Cursor · VS Code · Windsurf · Cline · all clients

Compared with the alternatives

Supplier statement open-item comparison: local MCP and integrated alternatives · all comparisons

Guides

Compare supplier statement open items with an AP ledger in Claude · Review duplicate supplier invoice references in Claude · Check a supplier invoice against a purchase order and delivery note in Claude · How to track billable hours inside Claude Code and Cursor · Create an invoice PDF from a chat message with an MCP server · Ask questions about an Excel or CSV file from Cursor or Claude · Watch a product price with Claude and get told when it drops · What the free tier includes and what Pro adds · Log expenses and mileage in Claude, split VAT, rebill to an invoice · Convert currencies in Claude with real ECB rates, no API key · Generate Word proposals and contracts from a chat message · Find a meeting time across time zones without doing the arithmetic · Write a resume and a cover letter from chat, without inventing anything · Bill a retainer on a schedule without a billing SaaS · Assemble a contract from your own clause library, in chat · Connect MCP servers to Claude.ai, Claude Desktop, Cursor and VS Code without installing anything · Merge, split and stamp PDFs from chat, and why some come back as glyph numbers · Read a .ics calendar in Claude: free and busy, conflicts, and billable meetings · Run a kanban board in Claude, with time tracking on the same task · Resize, compress and watermark images from a chat message · Categorize and reconcile a bank CSV export from chat · Send a quote from chat, then turn the yes into an invoice · Put a SEPA payment QR code on an invoice from chat · Zip and unzip archives safely from Claude or Cursor · Client deposits and retainers from chat, applied to your real invoices · Fixed assets and depreciation from chat, on the rates the tax authorities publish · Per diem and travel allowances from chat, on the rate tables the tax authorities publish · One double-entry ledger out of every server you already run · Loan and lease schedules from chat, closing exactly on zero · Work orders and job cards from chat, and why the markup goes on the unit cost · Price lists and rate cards from chat, and the 100x scale gap between the invoice and the quote · Change orders and the running contract value from chat, and why a changed line is two items · A petty cash float from chat, and why the cheque is not the sum of the vouchers · Client statements and payment chasers from chat, aged as at any date you name · Credit notes and purchase orders from chat, against your real invoices · One install, every server: the office-suite bundle · Close a month in chat: invoice, credit note, retainer, bank reconciliation, statement · MCP server not showing up in Claude Desktop: the six checks that find it · Where is claude_desktop_config.json, and what goes in it · claude mcp add: every flag, and the scope that silently loses your server · MCP servers on Windows: spawn npx ENOENT, backslashes and the PATH · Installing these MCP servers when npx does not work yet · Cursor MCP setup: mcp.json, the required type field, and where the servers appear · Which MCP servers work with no network at all · Invoicing an EU client with reverse charge, from a chat message · Quote, deposit, invoice, statement: the whole cycle in one conversation · Is this project making money? Hours against costs, without a spreadsheet · Building a tax year pack for your accountant from chat · Keeping a mileage log in chat, with the rate you actually claim · Reconciling a bank CSV against what you invoiced and spent · Rebilling client expenses, with a markup and the VAT handled honestly · Chasing an unpaid invoice: aging, then the letter · A bill of sale from chat, with the identifiers checked and the signature lines printed · Pricing a job from a rate card, and what to do when the scope changes · Working out your hourly rate from what you actually billed · Converting CSV to xlsx and back without opening Excel · Asking a spreadsheet questions in plain language · Merging a folder of receipts into one PDF from chat · Splitting one big scan into separate documents · Sending a month of paperwork as one archive, safely · MCP servers in VS Code: the one-word mistake that breaks every config · MCP servers in Windsurf and Cline: two defaults that waste an afternoon · Local MCP server or hosted URL: which one, and what you give up · What these MCP servers actually do on the free tier · Choosing an MCP server for invoicing: the seven questions worth asking · When you need an MCP server, and when a prompt is enough · MCP config file locations and JSON keys, every client · Why an MCP server does not appear, in order of likelihood · How MCP registry search actually works, measured · What is actually in the MCP registry: 6,000 rows counted · stdio or streamable HTTP: which MCP transport, and what breaks · MCP protocol versions: what each one changed · Every field in an MCP server config entry, by client · MCP config scopes: which definition wins when a server is defined twice · Where each MCP client writes its logs · Shipping an MCP server: a bundle to download or a URL to paste · What is inside a .mcpb MCP bundle · Charging for an MCP server: how licensing actually works · How much text an MCP server may return, and how much it may describe · What to check before letting an MCP server run · Why a directory says your hosted MCP server is not responding · The MCP registry binds one remote URL to one server name · Capital letters in your GitHub username change your MCP registry rank · How many MCP servers already have your word in the name · server.json field reference for the MCP registry · When an MCP tool fails, do not return a JSON-RPC error · structuredContent and outputSchema in MCP, and what MUST hold · Rules for naming an MCP tool, and the collision nobody plans for · MCP has no session, so how do two tool calls share state · x-mcp-header: mirroring tool parameters into HTTP headers · How a directory scores an MCP server, and why your worst tool decides it · What AI crawlers fetch that Googlebot does not, measured on 141 URLs · Search Console's URL Inspection API changes its answer between calls · Which MCP servers work by pasting a URL, with nothing installed · Where to find MCP servers that cost money, and how you actually pay · Getting an assistant to fill in a quote or estimate for a customer · Is there an MCP server for a petty cash book or a cash ledger · Currency conversion in an assistant, and which MCP server to use · Zipping and unzipping archives from an assistant, and what the guards do · Producing a delivery schedule or a work order document from a chat · Will an MCP server email the invoice to my client · Can an assistant read a photo of a receipt and log the expense · Which MCP server can generate invoice PDFs from a chat message? · Can an MCP server read a bank statement PDF and categorise the transactions? · Best MCP servers for small business accounting and paperwork in 2026 · MCP Supplier Directory: keep supplier lists from rotting in a spreadsheet · MCP Service Agreement: stop copying a rotting contract template off the internet · MCP Maintenance Log: know what service is due without anyone remembering · MCP Mileage Log: keep the deductible log at the moment of the drive, not in April · Invoice payment terms best practices: Net 30, due date and late fees · How to categorize bank transactions · Petty cash log template · Ask questions about a spreadsheet in chat, no formulas needed · Turn a quote or estimate into an invoice without retyping it · Produce a delivery schedule and a work order from a chat · Use MCP servers without installing anything, by pasting a URL · MCP servers for small business accounting: the roundup · How to find and pay for MCP servers · Track billable hours as timesheet entries instead of a wall-clock timer · Convert a CSV into JSON for an API import or a dev tool · Build an NDA or mutual confidentiality agreement from clauses · Make a packing list or delivery note from the order in chat · Run a stock count with barcodes and update the catalogue in chat · Merge PDF files in Claude or Cursor without uploading them anywhere · Split a PDF into separate documents from the chat window · Track expenses and budgets inside Claude without a SaaS subscription · Run pomodoro focus sessions from Claude and bill the hours after · Track product prices and get drop alerts from your AI chat · Track billable time and export timesheets from your AI chat · Keep invoice numbers sequential and never reuse one · ATS resume check and cover letter from chat: pass the parser before the recruiter · Freelancer invoicing from chat: billable hours to invoice lines to PDF without a SaaS subscription · Price drop alerts and PDF cleanup from chat: two small jobs you keep postponing · Convert USD to cedis, rand and shillings in Claude with real rates · Build a loan amortization schedule from chat and export it for Excel · How much do MCP servers cost? One-time licenses vs monthly subscriptions · Turn a bank CSV export into Excel rows from chat · Generate barcodes and QR codes from chat with an MCP server · Spreadsheet MCP servers compared: building Excel files from chat · All guides

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