Returns the Splitwise account this server acts as: id, name, email and default currency. "me" in other tools refers to this user.

Lists the user's Splitwise groups with member names and the user's own balance in each. A positive balance means the group owes the user; negative means the user owes the group.

Returns one group's members with their balances, plus the debts between members (simplified if the group has debt simplification on). Accepts a group id or name.

Lists the user's Splitwise friends with their overall balance with the user, per currency. A positive amount means the friend owes the user; negative means the user owes the friend.

Summarises who owes whom. Without a group: every friend with a non-zero balance, split into "owes_you" and "you_owe", plus net totals per currency. With a group: the debts between group members. Use this before settle_up to find the amount to settle.

Lists expenses and payments, newest first. Filter by group, friend and date range. Each expense shows what every person paid and owes. Deleted expenses are hidden unless include_deleted is true.

Returns one expense or payment by id, with every person's paid and owed share.

Finds expenses whose description or notes contain every word of the query (case- and accent-insensitive), e.g. "pizza" or "airbnb lisbon". Splitwise has no server-side search, so this scans recent expenses (newest first) up to scan_limit; narrow with group, friend or dates to search further back.

Adds an expense to Splitwise. Choose a group (or omit it for an expense between you and friends), who paid (default: you), and how to split: equally, by exact amounts, or by percentages. People can be given by name or id. Amounts are computed in whole cents, so the shares always add up exactly to the cost. If a name is ambiguous the tool returns the candidates instead of guessing: ask the user which one.

Edits an existing expense. Only the fields you pass change. Changing the cost alone rescales everyone's shares proportionally; pass split to redistribute, or paid_by to change who paid. Read the expense with get_expense first so you can confirm the change with the user.

Deletes an expense or payment. Balances change immediately. Confirm with the user before calling; Splitwise can restore it from the web app if needed.

Records a payment from one person to another (e.g. "Alex paid me back"). This does not move money; it records that money changed hands. Omit amount to settle the full outstanding balance: within the group if one is given, otherwise the overall balance between you and a friend.