MCP server for CastBreeze functionality - control Sonos speakers and play audio streams
Most developer tooling work still happens through a UI a human drives. Sonos MCP server moves it into the conversation instead. MCP server for CastBreeze functionality - control Sonos speakers and play audio streams.
Model Context Protocol (MCP) server for controlling Sonos speakers and playing audio streams through CastBreeze.
The server publishes 3 tools. What each one is for:
PNPM — The PNPM tool exposed by this serverAuthentication — The Authentication tool exposed by this serverPlayback — The Playback tool exposed by this serverInstallation goes through your MCP client rather than a global install: point it at @castbreeze/sonos-mcp on npm and it is fetched when the client starts. The copy-paste blocks for Claude Desktop, Claude Code and Cursor are further down this page.
Among the developer tooling options, the useful question is rarely "what can it do" but "what does it cost you to run" — permissions, credentials, and how much of your context its toolset consumes. Sonos's toolset — PNPM, Authentication, Playback — is a fair guide to whether it matches your workflow. It is maintained by afirus; worth a glance at recent repository activity before you build anything load-bearing on it.
This entry was verified against Sonos's own documentation before publication; SyncDev keeps the directory reviewed rather than auto-generated.
| Tool | What it does |
|---|---|
| PNPM | The PNPM tool exposed by this server. |
| Authentication | The Authentication tool exposed by this server. |
| Playback | The Playback tool exposed by this server. |
Or if installed globally:
```json
{
"mcpServers": {
"castbreeze-sonos": {
"command": "sonos-mcp"
}
}
}Configuration as documented by the project. Restart the client after saving.
Kill hallucinated APIs — version-accurate, up-to-date library documentation injected straight into context.
Microsoft's official browser automation server — drive a real browser through the accessibility tree, no screenshots needed.
GitHub's official server — repos, issues, pull requests, Actions and code security, straight from your assistant.
Issue tracking at the speed of conversation — Linear's official hosted server with OAuth and zero install.
Local repository surgery — status, diffs, commits, branches and history for any repo on disk.
Timezone sanity for AI — current time anywhere and correct conversions, without the model doing date math.