Simon documentation

Simon is an AI accounting assistant that helps the directors of French small businesses (TPE/PME) prepare, track and check their accounting on an ongoing basis. Drop in your documents: Simon analyses them, classifies them, reconciles them with your bank statements and prepares your tax returns, with user validation on sensitive decisions.

Where to start

• What is Simon? — Product vision, who it is for, what Simon does (and does not do)
• How Simon works — The mental model: agent, workflow, learning
• Installation — Install and launch the desktop application
• First financial year — Create your company and set up your first financial year

Understanding Simon

• Lifecycle of a document — How a document goes from “dropped in” to “posted”
• Under the hood — The 4 technical layers, the workflow, MCP symmetry
• Glossary — Accounting terms and Simon concepts

How to read this documentation

Just getting started? Begin with Getting started, then explore the Accounting cycle to understand the workflow.

Looking for a specific topic? Use the search — each page is indexed by business keywords.

Curious about the technical side? The Under the hood section explains the design choices and internal mechanisms.