List contacts in Xero with optional filtering. Returns customers and suppliers with their basic information. Use this to browse all contacts or filter by name, email, or status. Supports pagination for large contact lists.

Retrieve detailed information about a specific contact by ID. Returns complete contact details including addresses, phones, bank accounts, and contact persons. Use this when you have a contact ID and need full details.

Create a new contact in Xero. Contacts can be customers, suppliers, or both. Minimum required field is Name. Optionally include email, phone, addresses, and other details. Returns the created contact with its generated ID.

Update an existing contact in Xero. Provide the contact ID and the fields you want to update. Only provided fields will be changed. Returns the updated contact details.

List invoices in Xero with optional filtering. Returns sales and purchase invoices with their status, amounts, and due dates. Filter by status (DRAFT, SUBMITTED, AUTHORISED, PAID, VOIDED), date range, or contact. Supports pagination for large invoice lists.

Retrieve detailed information about a specific invoice by ID. Returns complete invoice details including line items, tax amounts, payments, and status. Use this when you have an invoice ID and need full details.

Create a new invoice in Xero. Can be a sales invoice (ACCREC) or purchase invoice (ACCPAY). Requires contact ID, type, date, due date, and line items. Line items must include description, quantity, unit amount, and account code. Returns the created invoice with its generated ID.

Update an existing invoice in Xero. Only invoices with DRAFT or SUBMITTED status can be fully updated. AUTHORISED invoices have limited update capabilities. Provide the invoice ID and the fields to update.

Void an invoice in Xero. This marks the invoice as VOIDED and cannot be undone. Only AUTHORISED invoices can be voided. DRAFT invoices should be deleted instead. Use this when an invoice was issued in error or needs to be cancelled.

List bank transactions in Xero with optional filtering. Returns spend and receive money transactions. Filter by bank account, date range, or status. Use this to browse bank activity or reconcile transactions. Supports pagination for large transaction lists.