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CreateInvoiceAttachment
An MCP tool from the Square API server, hosted on mcp.hjlabs.in.
CreateInvoiceAttachment Uploads a file and attaches it to an invoice. This endpoint accepts HTTP multipart/form-data file uploads with a JSON request part and a file part. The file part must be a readable stream that… [POST /v2/invoices/{invoice_id}/attachments]
Name on the gateway: square_api__create_invoice_attachment · may change things.
Parameters
| Name | Type | Description |
|---|---|---|
invoice_id required | string | The ID of the invoice to attach the file to. |
request | object | Represents a CreateInvoiceAttachment request. |
image_file | string |
How to call it
Through the Smart Gateway, any client can run it by name with call_tool, or let the gateway find it with search_tools:
{
"name": "square_api__create_invoice_attachment",
"arguments": {
"invoice_id": "…"
}
}Or connect the Square API server directly, which lists 308 tools including this one:
claude mcp add --transport http hj-square-api https://mcp.hjlabs.in/mcp/square-api \
--header "Authorization: Bearer YOUR_API_KEY"Try asking
Use the createinvoiceattachment tool with invoice_id set to ….