Report how this server resolved its Wave credentials and whether write tools are enabled. Makes no Wave API request, so it works even when the token is missing or expired -- use it first when other tools report authentication problems.

Get the Wave user account that owns the current access token. Useful for confirming which account a token authenticates as.

List the currency codes Wave supports. Wave supports about 160 currencies, so pass search to narrow the list.

Get one currency by ISO 4217 code.

List the countries Wave supports, with each one's default currency.

Get one country and its provinces or states. Use this to find the province codes that address fields expect.

Get one province or state by its code.

List the five top-level account types in Wave's chart of accounts: ASSET, LIABILITY, EQUITY, INCOME, and EXPENSE, each with its normal balance.

List account subtypes -- the value wave_create_account needs. Every account belongs to a subtype (CASH_AND_BANK, EXPENSE, INCOME, ...), which in turn determines its type. Some subtypes are system-created and cannot be used for new accounts.

Get the OAuth application that issued the current access token.

List the Wave businesses this access token can reach. Start here: every other tool needs a business ID. Pass one to wave_set_default_business so later calls can omit it.

Get full detail for one business: currency, address, type, and settings.

Set the business that later tool calls use when none is given. This is connector state, not a change in Wave. The hosted connector keeps it for the authenticated connection (legacy clients: the session); the local server keeps it until it restarts (set WAVE_BUSINESS_ID to make it permanent). Passing business_id explicitly always overrides it.

Get the branding applied to invoices and estimates: accent color and logo.

List the chart of accounts, with balances. Filter by type to find the account a transaction needs: EXPENSE for expense categories, INCOME for revenue, ASSET with subtype CASH_AND_BANK for bank accounts, LIABILITY with subtype CREDIT_CARD for cards.

Get one account by ID, including its current balance.

List customers, with each one's outstanding and overdue balance. Wave can filter by exact email only; name_contains is applied by this server after fetching, so combine it with fetch_all=true when searching a large customer list.

Get one customer by ID, including address and shipping details.

List vendors -- the suppliers a business buys from. Vendors are read-only in Wave's API: they can be listed and read but not created, changed, or deleted. Wave filters by exact email only; name_contains is applied locally, so pair it with fetch_all=true on a long vendor list.

Get one vendor by ID, including address and shipping details.

List products and services. Invoice and estimate line items must reference a product, so this is the usual first step when building either one.

Get one product by ID, including its accounts and default sales taxes.

List sales taxes, with their current rate and rate history.

Get one sales tax by ID, including its full rate history.

List invoices, filtered by status, customer, date range, or amount due. To find unpaid invoices use status "UNPAID"; "OVERDUE" narrows that to ones past their due date.

Get one invoice in full: line items, taxes, discounts, and payments.

Get one invoice payment by ID. To see every payment on an invoice, call wave_get_invoice instead: it returns them all.

List estimates (quotes), filtered by status, customer, or date range.

Get one estimate in full: line items, deposits, and acceptance history.

Get one estimate deposit payment by ID. To see every deposit on an estimate, call wave_get_estimate with include_deposit_payments=true.