Vapi is a platform that enables developers to build voice AI apps with ease, integrating state-of-the-art language models and text-to-speech engines. It offers advanced voice capabilities, including function-calling features and multilingual support for 100+ languages. Vapi's infrastructure supports real-time performance, scalability, and flexible deployments, making it suitable for applications with spiky traffic patterns. The platform uses Neon, a serverless Postgres solution, to power its business-critical workloads, providing autoscaling and connection pooling capabilities. With Vapi, developers can build voice AI agents that converse naturally and dynamically, reducing complexity and focusing on building without the hassle.