Zero Plus One MCP by usefulapi MCP Server

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answering

Zero Plus One MCP by usefulapi is answering right now. Last checked 1 min ago. It exposes 24 tools. Last commit 8 Nov 2026.

Read invoices, quotes, contacts, financial reports and bank reconciliation in Zero Plus One.

Uptime history 11 hours of history

11 hours agonow

100.0%

Uptime 24h

40 of 40 checks

Tools

read from the server

280 ms

Response time

average over 24h

Stars

last commit 8 Nov 2026

Nothing serious here today

Today is the operative word: we check Zero Plus One MCP by usefulapi every 15 minutes and re-read its code on every release. Watch it and you find out the day that stops being true.

Connect this server

Endpoint below is the one we actually reach during checks — not the one copied from a README. Last verified 1 min ago.

Claude Code Claude Desktop Codex Cursor VS Code

run in your terminal

claude mcp add zero-plus-one --transport http https://zero-plus-one.usefulapi.io/mcp

Settings → Connectors → Add custom connector, then paste this address

https://zero-plus-one.usefulapi.io/mcp

~/.codex/config.toml

[mcp_servers.zero-plus-one]
url = "https://zero-plus-one.usefulapi.io/mcp"

.cursor/mcp.json

{
  "mcpServers": {
    "zero-plus-one": {
      "url": "https://zero-plus-one.usefulapi.io/mcp"
    }
  }
}

.vscode/mcp.json

{
  "servers": {
    "zero-plus-one": {
      "type": "http",
      "url": "https://zero-plus-one.usefulapi.io/mcp"
    }
  }
}

Available tools 24

Read directly from the server with tools/list, grouped by what they act on. If a tool disappears, we record the date.

zeroplusone

zeroplusone_get_aged_payables

Money the organization owes suppliers, by age. Zero Plus One API: GET /reports/aged-payables (scope: View financial reports).

zeroplusone_get_aged_receivables

Money customers owe, by age. Zero Plus One API: GET /reports/aged-receivables (scope: View financial reports).

zeroplusone_get_balance_sheet

Balance sheet as it stands now. Zero Plus One API: GET /reports/balance-sheet (scope: View financial reports).

zeroplusone_get_cash_flow

Cash flow for a period. Zero Plus One API: GET /reports/cash-flow (scope: View financial reports).

zeroplusone_get_contact

Get one customer or supplier by id. Zero Plus One API: GET /contacts/{id}.

zeroplusone_get_credit_note

Get one credit note by id. Zero Plus One API: GET /credit-notes/{id}.

zeroplusone_get_invoice

Get one invoice by id. Zero Plus One API: GET /invoices/{id}.

zeroplusone_get_kpi_summary

Key figures for the organization. Zero Plus One API: GET /reports/kpi-summary (scope: View financial reports).

zeroplusone_get_open_invoices

Invoices that are not fully paid. Zero Plus One API: GET /reports/open-invoices (scope: View financial reports).

zeroplusone_get_profit_and_loss

Profit and loss for a period. Zero Plus One API: GET /reports/profit-and-loss (scope: View financial reports).

zeroplusone_get_quote

Get one quote by id. Zero Plus One API: GET /quotes/{id}.

zeroplusone_get_reconciliation_suggestions

Suggested matches between bank lines and the ledger for one account. Zero Plus One API: GET /reconciliation/accounts/{accountId}/suggestions (scope: View reconciliation suggestions).

zeroplusone_get_reconciliation_summary

Reconciliation progress for one ledger account. Zero Plus One API: GET /reconciliation/accounts/{accountId}/summary.

zeroplusone_get_recurring_invoice

Get one recurring invoice template by id. Zero Plus One API: GET /recurring-invoices/{id}.

zeroplusone_get_tax_rate

Get one tax rate by id. Zero Plus One API: GET /tax-rates/{id}.

zeroplusone_get_trial_balance

Trial balance as it stands now. Zero Plus One API: GET /reports/trial-balance (scope: View financial reports).

zeroplusone_get_vat_return

VAT 201 return figures for a period. Zero Plus One API: GET /reports/vat-201 (scope: View financial reports).

zeroplusone_list_contacts

List customers and suppliers. Zero Plus One API: GET /contacts (scope: View customers & suppliers).

zeroplusone_list_credit_notes

List credit notes. Zero Plus One API: GET /credit-notes.

zeroplusone_list_invoices

List the invoices in the organization. Zero Plus One API: GET /invoices (scope: View invoices).

zeroplusone_list_quotes

List quotes. Zero Plus One API: GET /quotes.

zeroplusone_list_reconciliation_lines

Bank statement lines for one ledger account. Zero Plus One API: GET /reconciliation/accounts/{accountId}/lines.

zeroplusone_list_recurring_invoices

List recurring invoice templates. Zero Plus One API: GET /recurring-invoices.

zeroplusone_list_tax_rates

List the tax rates set up in the organization. Zero Plus One API: GET /tax-rates.

Endpoints

URL	Transport	State	Latency	Checked
https://zero-plus-one.usefulapi.io/mcp	streamable-http	answering	272 ms	1 min ago

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Zero Plus One MCP by usefulapi — questions

Answers built from our own checks of this server.

What can Zero Plus One MCP by usefulapi do?

It exposes 24 tools, read directly from the server on our last check. Among them: zeroplusone_get_aged_payables, zeroplusone_get_aged_receivables, zeroplusone_get_balance_sheet, zeroplusone_get_cash_flow, zeroplusone_get_contact, zeroplusone_get_credit_note and 18 more. The full list with descriptions is on this page — we take it from the server itself via tools/list, not from a README. How MCP servers expose tools in the first place →

Is Zero Plus One MCP by usefulapi working right now?

We send a real MCP handshake every 15 minutes. Over the last 24 hours 40 of 40 checks got a reply (100.0%), average response time 280 ms. The bar chart above shows every period we have measured.

How do I connect Zero Plus One MCP by usefulapi?

Copy the ready config from this page. We generate it for Claude Code, Claude Desktop, Codex, Cursor and VS Code, each in the form that client actually reads. It is a remote server, so there is nothing to install — the client connects to the address.

Does Zero Plus One MCP by usefulapi need an API key?

No. Zero Plus One MCP by usefulapi completed a full MCP handshake with us as an anonymous client and listed its tools without asking for anything. All 24 of them are readable on this page. This is what we observed, not what the docs claim.

How fast is Zero Plus One MCP by usefulapi?

It answers our handshake in 280 ms on average, which is faster than 49% of all working MCP servers we measure. The comparison comes from our own checks across the whole registry, every 15 minutes.

Is Zero Plus One MCP by usefulapi open source?

The code is open source: it is published under the MIT licence, written in JavaScript, 1 stars on GitHub and 1 open issue. The licence covers the code in the repository, not the hosted service at zero-plus-one.usefulapi.io, which runs on its operator's own terms.