Supplier invoices to draft Xero bills per job, for UK trades' AI assistants (test mode)
Scored across 14 tools
Most tools have clearly distinct purposes across ingestion, review, job assignment, summaries, and Xero integration. There is some overlap between list_invoices and month_summary, and price_alerts repeats price-change information also included in month_summary, but descriptions make the intended use clear enough.
The set uses consistent snake_case and is mostly verb_noun (add_supplier_invoices, assign_job_reference, connect_xero, etc.). A few noun-phrase outliers such as month_summary, price_alerts, and xero_status are readable but slightly break the pattern.
Fourteen tools is well within a reasonable range for an invoice-processing server with onboarding, extraction, review, reporting, and Xero integration. Each tool appears to earn its place in the workflow rather than bloating the surface.
The surface covers the main lifecycle: account creation, invoice ingestion, original retrieval, job referencing, review of held-back invoices, monthly summaries, price alerts, settings, and Xero connection/push. A minor gap is the lack of a general edit or delete operation for already-added invoices beyond reviewing held-back ones and reassigning job references.
Add supplier invoices to the book: raw emails with PDF attachments, PDFs (text or scanned), photos, or pasted text, up to 25 per call. Each is read, checked against its own printed total, given its job reference, kept with its original, and checked for price changes against earlier invoices from the same supplier. Duplicates are skipped. Returns one result per document: added, needs_check (did not add up, held back), duplicate or failed.
Inputs: invoices (required).
Put an invoice (or some of its lines) on a job, when the supplier left the reference off or it was wrong.
Inputs: invoice_id (required), job_reference (required), line_numbers.
A link for the trade to open and sign in to Xero. Test mode: only a Xero Demo Company can be connected.
Inputs: no named parameters.
Start here, once per business. Creates the trade's invoice book and returns an API key to send as "Authorization: Bearer " on every other call. Test mode: free, nothing is charged. The same identity (company number) can later sign the trade into Nero Work without a new sign up.
Inputs: name (required), vat_number, company_number, vat_registered, +2 more.
Forget the Xero connection. Nothing in Xero is changed.
Inputs: no named parameters.
The trade's account, settings and Nero identity.
Inputs: no named parameters.
A private link to the original email, PDF or scan of one invoice, to show the trade.
Inputs: invoice_id (required).
Every invoice in the book for a month, with its lines, status and any problems.
Inputs: month (required).
The month at a glance: one draft bill per supplier with a line per job (net, VAT and which invoices), invoices held back to check, lines with no job reference, and price changes with the extra cost they caused. Includes the exact Xero payloads. Sends nothing.
Inputs: month (required).
Price changes on the same product code from the same supplier this month, in date order, and the extra they cost.
Inputs: month (required).
Put the month's bills into Xero as DRAFT bills, one per supplier, one line per job, with the original invoices attached. Without send: true it is a dry run that shows what would be sent. Running it again updates the same draft (no duplicates). A bill the trade has already approved is never changed; late invoices go on a top up bill. Never approves or pays.
Inputs: month (required), send, suppliers.
For an invoice held back as needs_check: accept it as read (it then goes on the bill), or remove it (for example to add a corrected copy). Ask the trade first.
Inputs: action (required), invoice_id (required).
Change how job references are read and how bills are entered in Xero.
Inputs: settings, vat_number, company_number, job_reference_style, +1 more.
Whether Xero is connected, and to which organisation.
Inputs: no named parameters.
Recent tool additions, removals, and schema changes observed during successful MCP inspections.
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