The KashFlow Node.js SDK by Joe Buckle is currently a work in progress that allows API interaction. Functioning methods include GET to obtain customers' information, INSERT to access invoices, and DELETE to reject transaction errors.
At Intuit’s annual conference, QuickBooks Connect, some details were shared about the latest version of their QuickBooks Online API, currently open to partners. Included was a look at the Payroll functionality, long desired by Intuit’s developer community, and notes on the move to GraphQL.
PayPal has announced the release of a new PayPal Invoicing API, which aims to provide small businesses with the tools necessary to easily create, send, and process invoices. Although targeting small businesses, the company has noted that the API has a global reach.