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Money and orders

Yuki MCP server

Yuki keeps the books of many Belgian and Dutch small businesses and their accountants. Through Flowplane an AI assistant can look up open invoices, the trial balance, the bookings on a ledger account, net revenue and scanned documents in Yuki. It can propose a general journal entry, which waits for your approval before it is booked.

Connect Yuki →Set up your assistant
Tools
6 read · 1 change
Sign-in
One shared key
Approval, by default
Changes wait for you
MCP server
Flowplane’s tools
What it can do

What your assistant can do in Yuki

6 tools that read and 1 that change something in Yuki. Reads are allowed; a change marked “asks first” waits for the person’s approval by default, and your workspace’s rules decide the rest.

Reads6

  • Check the connectionThe administrations this key reacheswhoami
  • Open invoicesUnpaid sales or purchase invoicesoutstanding_items
  • Trial balanceEvery ledger account's balance on a dategl_balance
  • Ledger account transactionsThe bookings on one ledger accountgl_transactions
  • Net revenueTurnover in a periodnet_revenue
  • Search documentsFind scanned invoices and other documentssearch_documents

Changesasks first1

  • Book a journal entryPost a general journal entry, asked by defaultpost_journal
How it connects

Sign-in

Yuki’s bookkeeping API works with a web service access key, not a personal login. A domain administrator creates the key in Yuki (Settings, Web services), chooses which services it may use and for which administrations, and pastes it into Flowplane once. Flowplane keeps it sealed; the assistant never sees it.

In Flowplane: In the Flowplane console, add Yuki and paste the web service access key.

MCP

Yuki and MCP

Yuki has no official MCP server of its own. There are community-built Yuki MCP servers, which you run yourself with your access key. Flowplane talks to Yuki’s own web services directly, so there is nothing to install or host.

Try it

Things to ask

  • “Which customers still owe us money, oldest first?”
  • “What was our net revenue in the third quarter compared with the second?”
  • “Show the bookings on ledger account 700000 for October.”
  • “Find the scanned invoice from our energy supplier for September.”
  • “Book a journal entry moving €1,200 from 499000 to 640000, dated today.”
Your assistant

Connect your assistant to Yuki

One Flowplane address works in every assistant below, with the same rules and the same log. Step-by-step setup for each:

FAQ

Questions

Can the assistant change my bookkeeping in Yuki?
Only one thing: booking a general journal entry, and by default that waits for a person’s approval in the browser (your workspace’s rules decide). Everything else only reads. Contacts, invoices and document uploads are not offered.
Does every call count against Yuki’s daily limit?
Yes. Yuki allows a domain 1,000 free web service calls a day, and each tool call signs in first, so a call costs two of them, three when it also looks up the only administration.
Which AI assistants can use Yuki through Flowplane?
Claude, Claude Code, ChatGPT, Cursor, Codex, GitHub Copilot and Mistral Le Chat, and any other client that supports remote MCP servers with sign-in. They all reach Yuki through the same Flowplane address.
What does it cost?
Free for one person, with up to three apps and five assistants. Personal Pro is €9 a month including VAT; companies start at €99 a month for ten active users. Prices are indicative; see the pricing page.

Flowplane is not affiliated with or endorsed by Yuki’s maker; the name and logo only identify the app. Pricing

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