Show HN: EchoKit – open-source voice AI agent framework

We built a voice AI agent in Rust.

EchoKit server is an open-source framework that connects speech input, LLM reasoning, and speech output — so you can build local or hybrid voice assistants with real-time interaction. It's super easy to set up.

Current features:

1. Supports both traditional ASR → LLM → TTS pipelines and end-to-end models like Gemini Live.

2. Voice Activity Detection (VAD) for low-latency, streaming voice input.

3. MCP support for external tools.

4. Works with both ESP32 hardware and web clients.

5. Streaming TTS output for GPT-Sovits

Would love to hear what kind of projects people would build with this or any feedback.