Billy MCP by usefulapi MCP Prompts
Billy MCP by usefulapi offers 6 prompts. A prompt is one you invoke yourself, rather than a tool the model calls on your behalf — each has its own page with the configuration for every client that can run it.
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getting_startedgetting started
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find_unpaid_invoices_past_their_due_datefind unpaid invoices past their due date
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total_what_you_invoiced_in_a_periodtotal what you invoiced in a period
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review_supplier_bills_waiting_for_approvalreview supplier bills waiting for approval
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check_bank_lines_and_ledger_postingscheck bank lines and ledger postings
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add_a_customer_and_a_draft_invoiceadd a customer and a draft invoice
Read from the server itself, by connecting to it and calling prompts/list on 5 November 2026.
A listing does not declare its prompts, so asking is the only way to know them, and this
is what the server actually offers rather than what its listing claims. Names only are
stored; connect the server for each prompt's arguments.