Fortnox
Let your coding agent read and act on Fortnox Swedish accounting data—customers, invoices, and ledger workflows—through OAuth-backed MCP tools.
Overview
Fortnox MCP is an MCP server for the Operate phase that integrates the Swedish Fortnox accounting API for agent-driven bookkeeping and invoice workflows.
What is this MCP server?
- stdio npm server fortnox-mcp-server v1.0.0
- OAuth2 refresh-token flow against developer.fortnox.se apps
- Required FORTNOX_CLIENT_ID, CLIENT_SECRET, and REFRESH_TOKEN env vars
- Targets Swedish Fortnox accounting API—not generic global GL systems
- Enables agent-assisted invoice and customer operations for EU indie shops
- Server version 1.0.0
- npm identifier fortnox-mcp-server
- Three required secret environment variables for OAuth
Community signal: 30 GitHub stars.
What problem does it solve?
Swedish solo founders on Fortnox still context-switch to the web UI for every invoice or customer lookup their agent could handle.
Who is it for?
Indie SaaS or consultancy builders in Sweden already on Fortnox who want OAuth-secured agent automation.
Skip if: US-only accounting stacks, teams without Fortnox OAuth app approval, or production finance changes without human review.
What do I get? / Deliverables
Your agent can call Fortnox APIs securely via MCP so routine accounting tasks stay in the terminal-centric workflow.
- Agent-callable Fortnox accounting API operations
- OAuth-secured stdio MCP bridge for Swedish ledgers
- Reduced manual UI work for routine Fortnox tasks
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Journey fit
Operate is the canonical shelf because Fortnox integration supports day-to-day indie business accounting after the product exists, not pre-build ideation. Iterate covers ongoing bookkeeping automation, reconciliations, and API-driven adjustments as the business runs.
How it compares
Regional accounting API MCP, not a multi-ledger finance skill or payment processor plugin.
Common Questions / FAQ
Who is Fortnox MCP for?
Solo builders and small teams using Fortnox for Swedish accounting who run MCP agents like Claude Code or Cursor.
When should I use Fortnox MCP?
During operate-phase bookkeeping iteration—queries, drafts, or repetitive Fortnox tasks—not for initial market validation.
How do I add Fortnox MCP to my agent?
Install fortnox-mcp-server from npm, configure stdio MCP, and set FORTNOX_CLIENT_ID, FORTNOX_CLIENT_SECRET, and FORTNOX_REFRESH_TOKEN after OAuth.