Rechnio MCP by usefulapi MCP Server

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answering

Rechnio MCP by usefulapi is answering right now. Last checked 9 min ago. It exposes 6 tools. Last commit 11 Nov 2026.

List invoices, customers, bank transactions and receipts; create draft invoices in Rechnio.

Uptime history 8 hours of history

8 hours agonow

100.0%

Uptime 24h

27 of 27 checks

Tools

read from the server

256 ms

Response time

average over 24h

Stars

last commit 11 Nov 2026

Nothing serious here today

Today is the operative word: we check Rechnio 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 9 min ago.

Claude Code Claude Desktop Codex Cursor VS Code

run in your terminal

claude mcp add rechnio --transport http https://rechnio.usefulapi.io/mcp

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

https://rechnio.usefulapi.io/mcp

~/.codex/config.toml

[mcp_servers.rechnio]
url = "https://rechnio.usefulapi.io/mcp"

.cursor/mcp.json

{
  "mcpServers": {
    "rechnio": {
      "url": "https://rechnio.usefulapi.io/mcp"
    }
  }
}

.vscode/mcp.json

{
  "servers": {
    "rechnio": {
      "type": "http",
      "url": "https://rechnio.usefulapi.io/mcp"
    }
  }
}

Available tools 6

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

rechnio

rechnio_create_customer

Create a customer. Give a company name for a business customer, or a first and last name for a private person. Returns the created customer with its customerNumber. POST /api/v1/customers. If the call fails with a network or timeout error, the record may already exist: list the records first before you retry.

rechnio_create_invoice

Create an invoice as a DRAFT. The vendor assigns the next number from the given series. This tool never sends the invoice; the customer sends it in Rechnio. POST /api/v1/invoices. If the call fails with a network or timeout error, the record may already exist: list the records first before you retry.

rechnio_list_customers

List customers of the Rechnio account, optionally searched by company, person name or email. Returns customerNumber, company, contact and address fields. GET /api/v1/customers.

rechnio_list_invoices

List invoices, newest first, optionally by status (draft, sent, paid, cancelled). Each invoice has invoiceNumber, totals, VAT, dates, customer and line items. GET /api/v1/invoices.

rechnio_list_receipts

List uploaded receipts with their OCR results (date, amount, counterparty, description), optionally only assigned or unassigned ones. GET /api/v1/receipts.

rechnio_list_transactions

List bank transactions, optionally by booking date range, category or account. Each has amount, description, category, bookingDate and account. GET /api/v1/transactions.

Endpoints

URL	Transport	State	Latency	Checked
https://rechnio.usefulapi.io/mcp	streamable-http	answering	270 ms	9 min ago

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Rechnio MCP by usefulapi — questions

Answers built from our own checks of this server.

What can Rechnio MCP by usefulapi do?

It exposes 6 tools, read directly from the server on our last check. Among them: rechnio_create_customer, rechnio_create_invoice, rechnio_list_customers, rechnio_list_invoices, rechnio_list_receipts, rechnio_list_transactions. 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 Rechnio MCP by usefulapi working right now?

We send a real MCP handshake every 15 minutes. Over the last 24 hours 27 of 27 checks got a reply (100.0%), average response time 256 ms. The bar chart above shows every period we have measured.

How do I connect Rechnio 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 Rechnio MCP by usefulapi need an API key?

No. Rechnio MCP by usefulapi completed a full MCP handshake with us as an anonymous client and listed its tools without asking for anything. All 6 of them are readable on this page. This is what we observed, not what the docs claim.

How fast is Rechnio MCP by usefulapi?

It answers our handshake in 256 ms on average, which is faster than 53% of all working MCP servers we measure. The comparison comes from our own checks across the whole registry, every 15 minutes.

Is Rechnio 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 rechnio.usefulapi.io, which runs on its operator's own terms.