@markosaric Is it possible to access external (outbound) click statistics through API?
@edgaras should be possible i think. since couple of weeks ago the api allows you to pull any custom event/goal and outbound link clicks is just a goal. did you try? https://plausible.io/docs/stats-api
Stats API reference | Plausible docs

Plausible Stats API is a powerful single endpoint HTTP interface to view historical and real-time stats. In a nutshell, the endpoint /api/v2/query accepts both simple and complex stats queries in the POST request body and returns the metrics as JSON.