Kite AI closed an $18 million Series A led by PayPal Ventures and General Catalyst, bringing total funding to $33 million for infrastructure addressing a fundamental bottleneck: how autonomous AI agents authenticate, transact, and coordinate with each other at machine speed.

The funding signals growing recognition that current human-centric payment and identity systems create friction points for agent-to-agent commerce. As enterprises deploy more autonomous agents for tasks ranging from procurement to customer service, the infrastructure gap between agent capabilities and transactional requirements has become a deployment blocker.