cast-mcp
cast-mcp
Servidor MCP HTTP independiente para reproducir audiolibros desde una biblioteca del sistema de archivos en altavoces Google Cast.
El servicio expone tanto herramientas MCP para agentes como endpoints HTTP simples para dispositivos físicos. Los audiolibros se leen desde ./media por defecto y se transmiten a los altavoces mediante URL de sesión firmadas respaldadas por ffmpeg.
También incluye TTS totalmente local para mensajes hablados cortos. Docker usa Piper por defecto con la voz en_GB-jenny_dioco-medium y recurre a espeak-ng si Piper falla.
Configuración Local
bun install
cp .env.example .env
mkdir -p media data
bun run startRelated MCP server: sonos-mcp
Docker
cp .env.example .env
mkdir -p media data
docker compose up -d --buildDocker monta ./media como /media:ro y ./data como /data.
Estructura de la Biblioteca
Consulta MEDIA.md para obtener instrucciones detalladas sobre dónde colocar los archivos de audiolibros y qué formatos son compatibles.
Cada carpeta dentro de ./media se trata como un libro:
media/
the-hobbit/
metadata.json
001.mp3
002.mp3metadata.json opcional:
{
"id": "the-hobbit",
"title": "The Hobbit",
"author": "J.R.R. Tolkien"
}Las extensiones de entrada compatibles actualmente son .mp3, .m4a, .m4b, .aac, .wav, .flac y .ogg. Las transmisiones se transcodifican a MP3.
Endpoints
GET /healthPOST /mcpGET /booksPOST /scanGET /speakersPOST /playPOST /sayPOST /stopGET /status/:speakerIdGET /media/stream?sessionId=...&sig=...GET /tts/:id?sig=...
Los endpoints de control requieren Authorization: Bearer <CONTROL_AUTH_TOKEN> cuando están configurados. MCP usa MCP_AUTH_TOKEN.
Configuración MCP de OpenCode
{
"mcp": {
"cast-audio": {
"type": "remote",
"url": "http://127.0.0.1:4130/mcp",
"enabled": true,
"headers": {
"Authorization": "Bearer {env:CAST_MCP_TOKEN}"
}
}
}
}This server cannot be installed
Maintenance
Resources
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