JUMP TOK1x - Aggregator Public APIInstanceGet instances by tax year.getBulk create instances.postInvestmentGet K1x FilegetAdds new investments to the system.postGet all investments in an instance.getK1UploadK-1 PDF UploadpostK-1 Upload StatusgetPowered by Bulk create instances.post https://api-aggregator.k1x.io/api/instanceCreates instances under your tenant.