echokit_server

# Setup the EchoKit server You will need an EchoKit device, or create your own ESP32 device with the [EchoKit firmware](https://github.com/second-state/echokit_box). ## Build ``` git clone https://github.com/second-state/echokit_server ``` Edit `config.toml` to customize the VAD, ASR, LLM, TTS services, as well as prompts and MCP servers. You can [see many examples](examples/). ``` cargo build --release ``` ## Configure AI services The `config.toml` can use any combination of open-source or proprietary AI services, as long as they offer OpenAI-compatible API endpoints. Here are instructions to start open source AI servers for the EchoKit server. * VAD: https://github.com/second-state/silero_vad_server * ASR: https://llamaedge.com/docs/ai-models/speech-to-text/quick-start-whisper * LLM: https://llamaedge.com/docs/ai-models/llm/quick-start-llm * Streaming TTS: https://github.com/second-state/gsv_tts Alternatively, you could use Google Gemini Live services for VAD + ASR + LLM, and even optionally, TTS. See [config.toml examples](examples/gemini). You can also [configure MCP servers](examples/gaia/mcp/config.toml) to give the EchoKit server tool use capabilities. ## Configure the voice prompt The `hello.wav` file on the server is sent to the EchoKit device when it connects. It is the voice prompt the device will say to tell the user that it is ready. ## Run the EchoKit server ``` export RUST_LOG=debug nohup target/release/echokit_server & ``` ## Test on a web page Go here: https://echokit.dev/chat/ Click on the link to save the `index.html` file to your local hard disk. Double click the local `index.html` file and open it in your browser. In the web page, set the URL to your own EchoKit server address, and start chatting! ## Configure a new device Go to web page: https://echokit.dev/setup/ and use Bluetooth to connect to the `GAIA ESP332` device.  Configure WiFi and server * WiFi SSID (e.g., `MyHome`) * WiFi password (e.g., `MyPassword`) * Web Socket server URL for `echokit_server` * US: `ws://indie.echokit.dev/ws/` * Asia: `ws://hk.echokit.dev/ws/`  ## Use the device **Chat:** press the `K0` button once or multiple times util the screen shows "Listening ...". You can now speak and it will answer. **Record:** long press the `K0` until the screen shows "Recording ...". You can now speak and the audio will be recorded on the server. **Config:** press `RST`. While it is restarting, press and hold `K0` to enter the configuration mode. Then [open the configuration UI](https://echokit.dev/setup/) to connect to the device via BT.