Monesto

By Monesto

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Overview

Monesto is a shared expense ledger for friends, trips and households. Connect it and ask in plain words: - "Dinner €60 for the Lisbon trip, split equally" - "Who owes me?" - "What did I spend on food in September?" ChatGPT adds personal and group expenses, splits them equally or by shares, amounts or percent, records settle-ups you paid outside Monesto, and creates groups with your Monesto friends. It also reads your balances and summarizes spending by category, month, group or member. Everything lands in your Monesto ledger, where your group sees it too, marked "via ChatGPT". Monesto never moves money. It records and reads; payments and transfers are out of scope. Each connection reaches only the account that approved it. Entries it added can be undone for 24 hours, and you can disconnect any time from ChatGPT, from /apps in @monesto_bot, or from the link in the "connected" email. Sign in with Telegram, email, Apple or Google. New users get an account on first connect.

Tools

add_group_members

ChatGPT

Monesto shared expense ledger; never moves money. Adds the user's accepted Monesto friends to one of their groups. Anyone else joins through the returned invite links, which the user shares; this tool never contacts other people.

add_transactions

ChatGPT

Monesto shared expense ledger; never moves money. Adds 1 to 25 personal expenses or incomes, or expenses with a split in split-mode groups. Categories apply to personal items only; track-only groups are not supported yet. Each item needs its own requestId; resending an item with the same requestId never creates a second entry. Returns a status per item; retry a FAILED item with the same requestId.

create_group

ChatGPT

Monesto shared expense ledger; never moves money. Creates a group and adds the user's accepted Monesto friends to it. Anyone else joins through the returned invite links, which the user shares; this tool never contacts other people.

get_balances

ChatGPT

Monesto shared expense ledger; never moves money. Shows who owes whom, per person and currency, overall or within one group. A positive net means that person owes the user.

get_context

ChatGPT

Monesto shared expense ledger; never moves money. Returns the user's profile, their groups with members, accepted friends and categories. Call this first to learn the ids other tools need.

list_transactions

ChatGPT

Monesto shared expense ledger; never moves money. Lists personal or group transactions, newest first, filtered by days (YYYY-MM-DD), text, member or category. Pass nextCursor to get the next page.

record_settle_up

ChatGPT

Monesto shared expense ledger; never moves money. Records that one group member has already paid another outside Monesto, to settle what they owe; it never sends, requests or moves money. The user must be the payer or the recipient. Find the group with get_context and check what is owed with get_balances for that groupId; if the user shares several groups with that person, ask which one. Resending with the same requestId never creates a second entry.

summarize_spending

ChatGPT

Monesto shared expense ledger; never moves money. Totals expenses or income between two days (YYYY-MM-DD) by category, month, group or member, per currency without conversion. Group items count the user's own share.

undo_transaction

ChatGPT

Monesto shared expense ledger; never moves money. Deletes one entry that this connection added in the last 24 hours. Entries added by people or other assistants cannot be undone here.