# Vyfakturuj MCP Muse connector

From musedirectory.ai, the independent directory of Meta Muse connectors. Not affiliated with Meta.

## Vyfakturuj MCP

Search, create and manage invoices and contacts in Vyfakturuj accounting software.

- Record: https://musedirectory.ai/connector/vyfakturuj-mcp
- Category: Finance & Bills
- Developer: usefulapi (https://usefulapi.io/vyfakturuj/)
- 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, 3208ms, checked 2026-10-29T10:45:47Z
- Endpoint: https://vyfakturuj.usefulapi.io/mcp
- Auth: No account needed; Pricing: unknown
- Screening: Screened, no issues found (2026-10-29T12:46:33Z)
- Source: Found in the official MCP Registry (io.usefulapi/vyfakturuj) https://registry.modelcontextprotocol.io/v0/servers?search=io.usefulapi%2Fvyfakturuj

Connects to Vyfakturuj invoicing platform. Muse can search and retrieve invoices and contacts, create new invoices and contacts, and access payment methods and numbering series. Requires a Vyfakturuj account.

Example request: "Create an invoice for a customer in my address book with three line items and send it to them."

How to connect: Not in Muse's Connectors list yet, but Muse can still use it. Paste this into Muse: "Use Vyfakturuj MCP to help me. It is a free service with an MCP server at https://vyfakturuj.usefulapi.io/mcp. It does not need an API key. 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:
- vyfakturuj_list_invoices: Search documents (faktury, zalohove faktury, proformy, objednavky ...); pass sort=date_created~desc for the newest first. Each row has id, number, type, dates, customer, VS, currency, total, flags and flags_decoded (paid, sent_to_customer, cancelled, ...) and the public/PDF URLs;
- vyfakturuj_get_invoice: One document with all fields: supplier and customer blocks, items (text, quantity, unit_price, vat_rate, totals), dates, VS, bank details, total, flags and flags_decoded, payment method, public page, PDF and online-payment URLs. GET /invoice/{id}/.
- vyfakturuj_create_invoice: WRITE. Creates a document in Vyfakturuj. Vyfakturuj has NO draft state: the document is issued at once and takes the next number of its number series (delete or cancel it in Vyfakturuj if wrong). Does NOT send an e-mail to the customer, does NOT mark it paid and moves no money; a
- vyfakturuj_list_contacts: Search the address book (adresar): id, name, company, ICO (IC), DIC, address, e-mail (mail_to), phone, default days_due. Filter by free text q, ICO, DIC, name, e-mail or phone. Paged with rows_limit/rows_offset. GET /contact/.
- vyfakturuj_get_contact: One address-book contact with every field (billing and delivery address, ICO/DIC, e-mails, default texts and days_due). GET /contact/{id}/.
- vyfakturuj_create_contact: WRITE. Adds a contact to the address book (it is not a customer message: nothing is sent). Give at least a name (the address-book label) or company or last name. Returns the new contact with its id. POST /contact/.
- vyfakturuj_get_template: One template / recurring invoice (sablona, pravidelna faktura) by id: its items, customer, schedule and settings. The API has no list endpoint for templates, so the id comes from the user (the number in the template's URL in Vyfakturuj). GET /template/{id}/.
- vyfakturuj_list_payment_methods: The payment methods of the account (id_payment_method, name, type: 1 bank transfer, 2 cash, 4 cash on delivery, 8 card, ...). Use the id in vyfakturuj_create_invoice. GET /settings/payment-method/.
- vyfakturuj_list_number_series: The numbering series (ciselne rady) of the account: id_number_series, the document type it is for, name and the number pattern. Use the id in vyfakturuj_create_invoice. GET /settings/number-series/.
- vyfakturuj_list_tags: The tags (stitky) of the account: id_tag, name and colour. Invoices carry an id_tag. GET /settings/tags/.

Screening checks:
- MCP handshake: pass (Answered in 34ms)
- Domain against threat feeds (Cloudflare security DNS): pass (vyfakturuj.usefulapi.io, usefulapi.io 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 (10 tools read, nothing found)
- Inputs asking for passwords, card numbers or seed phrases: pass (None found)
- Domain and redirects: pass (No redirects off the domain)
- AI review of purpose and tool behavior: pass (No concerns)