The conversation is the interface.
Connect once
Add the TAV server URL in your AI assistant settings. Sign in with a magic link — no password to remember. Connection persists across sessions.
Talk naturally
Ask your AI to create an invoice, clock in for a client, check outstanding balances, or send a payment reminder. It calls the right tool automatically.
AI handles the rest
The AI creates the invoice, starts the timer, or sends the reminder through TAV. You get a confirmation with all the details. Review in your dashboard any time.
Invoices. Time.
Expenses. By chat.
"Create an invoice for Acme — 10 hours at €95 for website redesign." Your AI calls TAV, creates the invoice with correct VAT, and confirms the total. You never opened a form.
"Clock in for TechCorp — API integration." Timer starts. "Show me unpaid invoices." You get the list with amounts and due dates. The AI is your interface to TAV.
No forms, no buttons. Tell your AI what you need in plain English. It translates your intent into the right API call.
Clients, invoices, offers, contracts, time tracking, expenses, reminders, reports, and ledger. Every core TAV action is available through conversation.
Sign in with your email — no password to share. OAuth 2.1 with PKCE. Your AI assistant never sees your credentials.
Snap a photo of a receipt in the chat. Your AI reads it, creates the expense, and attaches the image. Camera to books in one message.
"Clock in for TechCorp." "Stop the timer." Your AI starts and stops the timer through TAV. Time entries feed into invoices automatically.
Claude Desktop, ChatGPT, Cursor, or any AI assistant that supports the Model Context Protocol. One server URL, universal access.
Create, send, and track invoices through conversation. Your AI handles line items, VAT, and follow-up.
Clock in and out by talking. Your AI starts timers, logs hours, and confirms the entry.
Snap receipt photos in chat. Your AI creates the expense and attaches the image.
Common questions
How do I connect the MCP server?
Open your AI client (Claude Desktop, ChatGPT, Cursor, etc.) and go to the connectors or MCP settings. Add a custom connector with the URL https://mcp.withtav.com/mcp. Click connect — TAV sends a magic link to your email. Click the link to authenticate. The connection persists across sessions. Setup takes about 60 seconds.
Is it secure?
TAV uses OAuth 2.1 with PKCE (S256) — the industry standard for secure API access. Authentication happens via magic link, so no password is ever shared with the AI assistant. Access tokens expire after one hour. Refresh tokens last 30 days. You can revoke access at any time. Rate limiting is enforced: 60 reads per minute, 10 writes per minute.
Which AI clients work with TAV?
Any client that supports the Model Context Protocol (MCP). This includes Claude Desktop, ChatGPT (with MCP plugin support), Cursor, and other MCP-compatible tools. TAV uses Streamable HTTP transport, which is the standard MCP transport. If your AI client has an "Add MCP server" or "Add connector" option, it works with TAV.
What can I do through the MCP server?
TAV exposes 19 tools covering all core functions: list, view, and create clients; list, view, create, finalize, and mark invoices as paid; list, view, create, and send offers; list and view contracts; clock in, clock out, and log time entries; list, view, and create expenses with receipt upload; view journal entries and trial balance; get your dashboard and financial reports; and send reminders for invoices, contracts, and offers.
Are there rate limits?
Yes. Read operations (list, view, search) are limited to 60 per minute. Write operations (create, send, update) are limited to 10 per minute. These limits are per user, enforced server-side via Redis. They prevent accidental loops while being generous enough for normal use. If you hit a limit, wait a few seconds and retry.