Clients, projects, time
Billable time logs per project that compare plan and actual.
§ 00 / produits / billboy
BillBoy. Invoicing built to disappear into your workflow.
Open-source invoicing, time tracking and bookkeeping for freelancers and small agencies. It covers the path from a client and a project to a clean, client-ready invoice, with the hours and expenses that justify it.
- c'est quoi
- invoicing, time tracking and bookkeeping
- état
- en ligne
- licence
- open source · hosted for free
- plateforme
- web · REST API · MCP
- construit avec
- GoatCheese
- IA
- receipt and business-card scanning · MCP server
§ 01 / what it does
From a project to an invoice, with the proof attached.
Expenses with receipts
Attach the receipt; AI-powered scanning reads receipts and business cards for you.
Multi-currency invoices
Clean enough to send as they are.
A small team
Role-based access for the people who need to log time without seeing the books.
API REST
Every entity as documented endpoints with role checks and an audit log.
Serveur MCP
An AI assistant can log time or draft an invoice — under your permissions, not around them.
§ 02 / how it is built
One schema, the whole application.
- generated by
- GoatCheese — database, admin interface, API, permissions and MCP server from one schema
- custom part
- receipt scanning and the invoice documents
- code
- github.com/drez/billboy — read it, host it yourself
§ 03 / prochaine étape
Send the invoice, keep the afternoon.
Use it at billboy.apigoat.com, or read and host the code yourself. Need it bent to your own workflow? Send a brief.