No separate STT, LLM, or TTS services to wire up. The AssemblyAI Voice Agent API handles the entire pipeline server-side: speech recognition, the language model that decides what to say, and the voice that speaks it back. Turn detection, barge-in, and tool calling are built in. Why one WebSocket beats a multi-service pipeline A traditional voice agent needs you to wire up at least three providers — a streaming STT, an LLM, and a TTS — and orchestrate the audio routing between them yourself. Every hop adds latency, every provider adds an API key, and every glue layer adds a place for the conversation to fall apart.…