A Global AI-Native CFO Platform
One of the first and leading AI-native CFO operations platforms. Chat with your books across every channel. Connect any AI agent. Global, multi-country, agent-first from day one.
Finance Tooling Was Not Built for the AI-Agent Era
The finance stack most founders inherit is fragmented, expensive, and locked away from the AI tools they actually use every day:
Bookkeeping, invoicing, payroll, tax, and reporting spread across four or five disconnected tools
Traditional accountants charging £100-300/month with limited availability and slow turnaround
No way for an AI agent (Claude, ChatGPT, custom agents) to read or act on financial data directly
Compliance complexity multiplying for founders operating across multiple markets and currencies
A Global AI-Native CFO Platform, Agent-First, Multi-Channel
AccountsOS is one of the first and leading AI-native CFO operations platforms. Chat with your books in plain English across every channel, web, voice, WhatsApp, Slack, Telegram, SMS, email. Connect any AI agent via MCP, REST, or OpenClaw. The platform handles bookkeeping, invoicing, payroll, tax, and proactive optimisation. Architected multi-country from day one with full HMRC production integration live in the UK and additional markets rolling out.

Built with
- Next.js 16
- React 19
- TypeScript
- Tailwind v4
- Supabase
- Gemini 2.5
- Claude AI
- OpenAI
- HMRC MTD
- Companies House
- MCP (Model Context Protocol)
- Simli Avatar
Key features
- AI Chat (text + voice)
- Voice Booking with Avatar
- Receipt Capture (photo + voice + WhatsApp)
- Bank Import + Reconciliation
- Invoice Builder + Auto-Chase
- VAT Submission (HMRC MTD)
AI Finance, Built Right
AccountsOS delivers the value of a full CFO function at a fraction of the cost, and makes it agent-ready from day one:
Agent-Connected
Claude Desktop, OpenClaw, Composio, LangChain, and any MCP-compatible agent can read, query, and act on the books directly
Multi-Channel Chat
Web, voice, WhatsApp, Slack, Telegram, SMS, and email, every channel routes through the same intelligence with shared context
Global Architecture
Built multi-country from day one. UK live with full HMRC MTD production integration. Additional markets rolling out
Cost Reduction
Replaces the combined cost of an accountant plus three or four software subscriptions with a single AI-native platform


Enterprise transformation or a rapid AI-native build, same principle: one senior team, a fixed fee, and dates agreed before we start.
Ready to build something exceptional?
Start a projectScope and price in 48 hoursOr write to hello@p0stman.com