Monestofor Claude and ChatGPT

For Claude and ChatGPT

Split bills just by asking Claude or ChatGPT

Add expenses, split them with your group and check who owes whom in plain words. Every entry lands in your Monesto ledger, where your group sees it too.

Connect your assistantFree to connect. No app needed: your account is created when you connect.
Or paste this into your assistant
Connect me to Monesto, my shared expense ledger. Its MCP server is https://mcp.monesto.me/mcp (remote, OAuth sign-in). If you can add MCP servers yourself, add it as "monesto" and start the sign-in. If you can't, walk me through adding it as a custom connector in this app, using https://monesto.me/ai/connect. In Codex or the ChatGPT desktop app, run `codex mcp add monesto --url https://mcp.monesto.me/mcp` and then `codex mcp login monesto`; in Claude Code, run `claude mcp add --transport http monesto https://mcp.monesto.me/mcp` and then `/mcp`. If sign-in fails with "dynamic client registration not supported", the app is out of date: tell me to update it, then try again. Once it's connected, ask Monesto who owes me.

What you can ask

Write the way you’d text a friend. The assistant turns it into Monesto entries.

Dinner €60 for the Lisbon trip, split equally
Adds a group expense, splits it and lets the group know.
Who owes me?
Lists your balances with each person and each group.
What did I spend on food in September?
Gives a short summary by category.
Make a “Lisbon trip” group with Anna and Max
Creates the group and adds your Monesto friends. For anyone else, you get an invite link to send.
Add yesterday’s taxi, €18
Adds a personal expense with yesterday’s date.
Undo that
Removes the last entry the assistant added.

Connected in three steps

  1. Add Monesto in your assistant

    Paste one address into Claude or ChatGPT, or ask the assistant to set it up for you.

  2. Sign in

    Use Telegram, email, Apple or Google. New to Monesto? Your account is created on the spot.

  3. Press Allow

    You’re back in the chat and can start asking.

via ClaudeEverything the assistant adds shows “via Claude” or “via ChatGPT” in Monesto, so your group always knows where it came from.

Safe by design

It never moves money
The assistant records and reads entries. It can’t pay, transfer or reach your bank.
One connection, one account
The assistant sees only the Monesto account you signed in with.
Disconnect any time
Send /apps to our Telegram bot, use the link in the “connected” email, or remove Monesto in your assistant.
Only what you ask about
The assistant sees the entries and balances it needs to answer you, plus your group members’ display names.

Questions

Is it free?

Yes. Connecting Monesto to your assistant is free.

Which Claude or ChatGPT plan do I need?

Claude works on any plan. The guide lists what ChatGPT currently needs.

Do I need the Monesto app?

No. Your account is created when you connect. You can open the same ledger later in Telegram or on iPhone.

What can people in my groups see?

The same as always: shared expenses in groups you’re both in, now with a “via Claude” or “via ChatGPT” label. Your personal expenses stay private.

Can the assistant pay or transfer money?

No. Monesto only keeps a record of who paid and who owes. The connection can’t send or request money.

How do I disconnect?

Remove Monesto in your assistant’s settings, send /apps to @monesto_bot and tap Revoke, or use the link in the “connected” email. Access stops within a minute.

Next time someone pays, just tell your assistant

Connect your assistant
Prefer the app?Open in TelegramiPhone app coming soon