Exclusive SaaS-y accounting outfit Xero has advised developers who integrate their products with its services that they’ll soon have to pay for the privilege in a new way.

Xero started its life in New Zealand and has since won over 4.6 million subscribers in 180-plus countries. In Australia, Xero displaced the dominant player MYOB. It’s a challenger brand chasing the likes of Sage and Intuit elsewhere.

Xero today emailed developers who create products that integrate with its services. The Register has seen that mail, which opens “We are deeply committed to investing in our ecosystem” and states that Xero wants to “ensure our platform supports your app development journey.”

Ecosystem-killer

Xero will do two things to meet those goals, the first of which is “introducing a tiered pricing

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