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Connect Mistral Le Chat to Billtobox

Mistral Le Chat reaches Billtobox through one Flowplane address. You add Billtobox once in Flowplane, add that address to Mistral Le Chat, and sign in. Look through Billtobox with your AI assistant: purchase and sales invoices, customers, suppliers and payments, for one company or many.

Connect Billtobox →Set up your assistant
Tools
9 read-only
Sign-in
Your own account
Approval, by default
Nothing changes
MCP server
Flowplane’s tools
  1. 1

    Add Billtobox in Flowplane

    In the Flowplane console, add Billtobox, choose Sign in with Billtobox and allow the access it asks for.

    Each person signs in with their own Billtobox account, so the assistant sees exactly the companies and records that user may see. An accountant’s login reaches all the client files it has access to; a business owner’s, their own company. Billtobox hands Flowplane a login that it keeps sealed; the assistant never sees it.

    Connect Billtobox →

  2. 2

    Add Flowplane to Mistral Le Chat

    Your address is shown in the Flowplane console; it looks like

    https://mcp.flowplane.eu/<your-label>

    1. In Le Chat (Vibe), open Connectors, choose + Add Connector and the Custom MCP Connector tab.
    2. Enter a name without spaces and the server URL https://mcp.flowplane.eu/<your-label>.
    3. Choose Connect, sign in to Flowplane and allow it.

    Steps checked against the vendor’s documentation (Mistral AI)

  3. 3

    Ask Mistral Le Chat

    • “Which purchase invoices of Bakkerij Peeters are still unpaid, and when are they due?”
    • “Show the sales invoices we sent in October, with what is still open on each.”
    • “Which client companies can I see in Billtobox?”
    • “Find the supplier with VAT number BE0123456789 and list its invoices this year.”
What it can do

What Mistral Le Chat can do in Billtobox

Billtobox, Unifiedpost’s invoicing platform, is where many Belgian and Dutch businesses and their accountants receive and send their invoices. Through Flowplane an AI assistant can look through the purchase and sales invoices of a company, with their amounts, VAT, payment status and what is still open, and its customers, suppliers and payments. It only reads: it changes nothing in Billtobox.

Reads9

  • List clientsThe companies you can seelist_clients
  • Get clientA company's detailsget_client
  • List purchase invoicesInvoices receivedlist_purchase_invoices
  • Get purchase invoiceA received invoice's detailsget_purchase_invoice
  • List sales invoicesInvoices sentlist_sales_invoices
  • Get sales invoiceA sent invoice's detailsget_sales_invoice
  • List debtorsCustomerslist_debtors
  • List creditorsSupplierslist_creditors
  • List paymentsA company's paymentslist_payments

Nothing it can do changes anything in Billtobox.

FAQ

Questions

Can the assistant change anything in Billtobox?
No, on purpose. Billtobox’s API can also upload invoices, mark them paid and change customers and suppliers, but those touch a company’s books and its accountant’s work, so they are not offered. Every tool only reads.
Can it open the PDF of an invoice?
No. The PDF and UBL files of an invoice and the document centre are left out: it sees the numbers, dates, amounts, VAT, status and the parties.
Does it work with the newer Banqup platform?
No. This connector is for Billtobox in Belgium and the Netherlands. The newer Banqup platform has another API and another sign-in.
Does Mistral Le Chat see the password or key for Billtobox?
No. You sign in to Billtobox through Flowplane, which keeps that sign-in sealed. Mistral Le Chat only gets a Flowplane sign-in for you, which you can revoke in the console.
Can Mistral Le Chat change things in Billtobox without asking?
No. Every tool for Billtobox only reads.
Your assistant

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Everything about Billtobox and Flowplane →

Flowplane is not affiliated with or endorsed by Billtobox’s maker; the name and logo only identify the app. Pricing

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