Zero Plus One MCP by usefulapi MCP Tools
Zero Plus One MCP by usefulapi exposes 24 tools. Each one has its own page with the configuration for every client that can run this server.
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zeroplusone_list_invoiceszeroplusone list invoices
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zeroplusone_get_invoicezeroplusone get invoice
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zeroplusone_list_contactszeroplusone list contacts
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zeroplusone_get_contactzeroplusone get contact
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zeroplusone_list_credit_noteszeroplusone list credit notes
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zeroplusone_get_credit_notezeroplusone get credit note
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zeroplusone_list_quoteszeroplusone list quotes
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zeroplusone_get_quotezeroplusone get quote
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zeroplusone_list_recurring_invoiceszeroplusone list recurring invoices
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zeroplusone_get_recurring_invoicezeroplusone get recurring invoice
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zeroplusone_list_tax_rateszeroplusone list tax rates
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zeroplusone_get_tax_ratezeroplusone get tax rate
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zeroplusone_get_profit_and_losszeroplusone get profit and loss
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zeroplusone_get_balance_sheetzeroplusone get balance sheet
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zeroplusone_get_trial_balancezeroplusone get trial balance
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zeroplusone_get_cash_flowzeroplusone get cash flow
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zeroplusone_get_vat_returnzeroplusone get vat return
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zeroplusone_get_kpi_summaryzeroplusone get kpi summary
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zeroplusone_get_aged_receivableszeroplusone get aged receivables
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zeroplusone_get_aged_payableszeroplusone get aged payables
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zeroplusone_get_open_invoiceszeroplusone get open invoices
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zeroplusone_get_reconciliation_summaryzeroplusone get reconciliation summary
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zeroplusone_list_reconciliation_lineszeroplusone list reconciliation lines
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zeroplusone_get_reconciliation_suggestionszeroplusone get reconciliation suggestions
This list was read from the server itself, by connecting to it and calling tools/list on 8 November 2026. It is what
the server actually exposes, not what its listing claims.
Mutating and Read-only are read off each tool's name, not its schema — a hint, not a guarantee. The registry stores tool names only; connect the server for its live schemas.