# Billing Docs: Credit Notes & Purchase Orders Muse connector From musedirectory.ai, the independent directory of Meta Muse connectors. Not affiliated with Meta. ## Billing Docs: Credit Notes & Purchase Orders Create credit notes for refunds and purchase orders for suppliers with VAT and PDF documents. - Record: https://musedirectory.ai/connector/billing-docs-credit-notes-purchase-orders - Category: Finance & Bills - Developer: theluckystrike (https://mcp.zovo.one/s/billing-docs) - Muse status: Extra setup. Not in Muse's Connectors list yet. Muse can still use it: its page gives you a request to paste into Muse. - Health: Working, 770ms, checked 2026-09-28T09:00:47Z - Endpoint: https://mcp.zovo.one/mcp/billing-docs - Auth: Needs an access key; Pricing: unknown - Screening: Screened, no issues found (2026-09-24T04:40:57Z) - Source: Found in the official MCP Registry (io.github.theluckystrike/billing-docs-credit-notes-purchase-orders) https://registry.modelcontextprotocol.io/v0/servers?search=io.github.theluckystrike%2Fbilling-docs-credit-notes-purchase-orders Manage credit notes against invoices and purchase orders to suppliers. Generate VAT-compliant A4 PDFs, track partial receipts, and get reports on credits issued and open orders. Requires API key and shared business profile. Example request: "Create a credit note for returned goods against invoice INV-2026-0001 and email it to the customer as a PDF." How to connect: Not in Muse's Connectors list yet, but Muse can still use it. Paste this into Muse: "Use Billing Docs: Credit Notes & Purchase Orders to help me. It is a free service with an MCP server at https://mcp.zovo.one/mcp/billing-docs. It needs an API key from theluckystrike; ask me to enter it through your secure credential prompt. Ask me before you share anything with it." Muse asks before it shares anything with the app's site. Meta does not review apps used this way, so only use ones you trust. We tested this in the Muse app on September 24, 2026: Muse used an app's link directly this way and returned a live answer. Tools: - credit_note_create: Credit one invoice: the whole invoice, a GROSS amount_minor split over its VAT rates, or named lines. Amounts store negative, reusing the invoice's own rates. Free: 5 a month. Send it with credit_note_text. - credit_note_list: List credit notes newest first: id, invoice, client, basis, reason, currency and the NEGATIVE total, with the amount credited per currency. Filter by invoice, client or issue date range. - credit_note_get: Return one credit note in full by id or exact client name: every negated line, VAT lines, totals, the reason, and the invoice number and date it reverses. Reads only. Use credit_note_list for the ids. - credit_note_pdf: Call this tool to render one credit note as an A4 print-ready document and return a download link valid for one hour: the invoice layout titled CREDIT NOTE, with the invoice it reverses. Pro. - credit_note_text: Turn a credit note into a plain-text summary to paste into an email: the negated line table, VAT lines, total, reason, and what now comes off the invoice. Also a .txt download link valid one hour. Free; credit_note_pdf writes the A4 document. - credit_note_delete: Remove one credit note never posted to its invoice and never rendered, freeing that month's slot; the invoice becomes creditable again. One with a dependent is refused: issue a fresh note to reverse a sent one. - purchase_order_create: Raise a purchase order to a supplier from items and return its PO number and totals. unit_price is in MAJOR units; currency, VAT and the buyer block come from the shared profile. Free: 5 documents a calendar month. - purchase_order_list: List purchase orders newest first: id, supplier, order and expected delivery dates, status open, partially_received or received, currency, total and received date. Filter by status, supplier or date range. - purchase_order_get: Return one purchase order in full by id or exact supplier name: buyer and supplier blocks, every line with unit price and VAT, totals, the delivery date, status and every receipt with its date and note. - purchase_order_pdf: Call this tool to render one purchase order as an A4 print-ready document and return a download link valid for one hour: the invoice layout titled PURCHASE ORDER, with the buyer and supplier. Pro. - purchase_order_text: Turn a purchase order into a plain-text order to paste into an email: the line table, VAT lines, total, and a line asking the supplier to deliver by the date and quote the PO number. Also a .txt download link valid one hour. Free on every tier. - purchase_order_receive: Record that an order arrived. partial keeps it open and can be repeated, each receipt kept with its date and note; a full receipt closes it. An order already received, or a date before the order date, is refused. - purchase_order_delete: Remove one purchase order with nothing received and never rendered, freeing that month's slot. One with a receipt is refused, naming it. The PO number is never reissued. purchase_order_receive logs arrivals. - billing_docs_report: Over a date range: what was credited back per currency and against how many invoices, what is still on order per currency, and every open order past its delivery date with days late. Pro; the list tools are free. - license_status: Report this endpoint's licence state for your token as JSON: the product, the tier free or pro, why it is not Pro, and the checkout URL. Call it to explain a free-tier refusal. No arguments, nothing changes. - license_activate: Turn Pro on for this connection with key, an MCPL1.. issued at checkout for this server or the bundle. Data under your token stays; a wrong or expired key changes nothing. license_status confirms it. Screening checks: - MCP handshake: pass (Answered in 566ms) - Domain against threat feeds (Cloudflare security DNS): pass (mcp.zovo.one not flagged) - Published packages against the OSV malicious-package database: n/a (No npm or PyPI package published) - Hidden instructions or invisible characters in tool text: pass (16 tools read, nothing found) - Inputs asking for passwords, card numbers or seed phrases: pass (None found) - Domain and redirects: pass (Domain registered 245 days ago) - AI review of purpose and tool behavior: pass (No concerns)