More AI - ChatGPT & Claude MCP is a hosted, remote MCP server for Fortnox, the Swedish accounting system. You add one address to your AI app, sign in with Fortnox, and the assistant can answer from your own bookkeeping.
https://accounting.amore.cloud/mcp
Streamable HTTP · OAuth sign-in through Fortnox · listed in the official MCP Registry as cloud.amore.accounting/fortnox
What you can ask
- Which customers are late paying? — open invoices and aging, per customer
- Book the inbox — supplier invoices read, matched to suppliers and coded, as one proposal to approve
- Book this receipt — a voucher proposed with account and VAT, the receipt attached
- Which vouchers have no attachment? — and what is still lying in the Fortnox inbox
- Does the bank account match the books? — balance reconciliation, also against camt.053 statements
- How does cash look for the next six weeks? — cash forecast from open invoices
- Go through the last three months — VAT rates, missing attachments and possible duplicates, each with a proposed fix
Reads cover invoices, supplier invoices, vouchers, accounts, reports, VAT, inventory and more. Changes — booking, registering, sending invoices and reminders — are always proposed first and sent only after you approve that exact content.
Connect
- Buy and activate More AI in the Fortnox App Market. The first 30 days are free.
- Add the address
https://accounting.amore.cloud/mcp in your AI app:
- ChatGPT: Plugins → Add → Create custom MCP server. Step by step
- Claude: Customize → Connectors → Add custom connector. Step by step
- Grok: on grok.com, add a custom connector with the name More AI and the address above. Grok Bot adds it when you ask in the chat. Start a question with Use More: so Grok asks Fortnox. Step by step
- Claude Code:
/plugin marketplace add amor3/fortnox-mcp, then /plugin install fortnox-mcp@more-ai.
- Gemini CLI:
gemini extensions install https://github.com/amor3/fortnox-mcp, then /mcp auth fortnox inside Gemini CLI to sign in.
- Codex and other MCP clients: add it as a remote HTTP server.
- Sign in with Fortnox, choose the company, and choose read or read & write.
For accounting firms
MoreAI - Byrå ChatGPT & Claude is the version for accounting firms: one connection per consultant, and the firm's client companies shared across the firm. Its own address:
https://byra.amore.cloud/mcp
229 SEK per consultant and month excluding VAT, 20 days free. More on byra.amore.cloud (in Swedish). Listed in the MCP Registry as cloud.amore.byra/fortnox.
Videos
Security
- Signs in through Fortnox's own OAuth. We never see your Fortnox password.
- Every change is shown in full and sent only after you approve it. Changed payment details on a supplier require a fresh Fortnox sign-in to approve.
- Each company can be set to read-only.
- No copy of the books is stored. Reads are kept in working memory for at most three minutes.
More on the security page.
Price
119 SEK per company and month excluding VAT, billed by Fortnox. All users in the company are included. The first 30 days are free.
On this repository
This repository describes the service and how to connect to it. The server itself is hosted and is not open source. Questions and problems: support or an issue here.
På svenska
More AI - ChatGPT & Claude MCP kopplar ditt Fortnox till ChatGPT, Claude, Grok eller en annan AI-app som stöder MCP. Du frågar på vanlig svenska och får svar ur din egen bokföring. Assistenten kan också förbereda ändringar — bokföra ett kvitto, registrera leverantörsfakturor, skicka påminnelser — och ingenting skickas till Fortnox förrän du godkänt just det innehållet.
Drivs av Starberg & More Solutions AB.
