Register a payment
Registers a purchase or sales invoice as paid in a bank or cash journal.
MCP tool snelstart_write → register_payment
write Confirm
Does what Betaling registreren does on an invoice line. SnelStart documents it only for administrations without a bank connection or manual bank statement import; otherwise the payment must be linked to the bank transaction instead. The call changes the books. By default you confirm each call; you can switch that off for this tool.
Parameters
| Name | Type | Description |
|---|---|---|
| invoice_id string required | string | Sales invoice ID from list_sales_invoices or create_sales_invoice. |
| journal string required | string | Bank or cash journal that is not linked to a bank account number. |
| date string | string | Payment date, YYYY-MM-DD. Default: today. |
| amount number | number | Amount paid. Default: the open amount. |
tools/call
{
"jsonrpc": "2.0",
"id": 1,
"method": "tools/call",
"params": {
"name": "snelstart_write",
"arguments": {
"operation": "register_payment",
"arguments": {
"invoice_id": "invoice_8c41d2",
"journal": "journal"
}
}
}
}Example response
{
"content": [
{
"type": "text",
"text": "{ ... same JSON as structuredContent ... }"
}
],
"structuredContent": {
"invoice_id": "inv_2026_0391",
"number": "2026-0391",
"journal": "Kas",
"paid_on": "2026-10-13",
"amount": 575,
"status": "paid"
},
"isError": false
}