# play_audio

Plays audio file locally. Returns: playback confirmation. Use when: previewing generated audio without downloading.

Agent View of the PolicyLayer registry record for `play_audio`. HTML page: https://policylayer.com/tools/199-mcp-mcp-elevenlabs/play-audio

## Facts

- Tool: `play_audio`
- Server: ElevenLabs MCP Enhanced (`199-mcp/mcp-elevenlabs`) — https://policylayer.com/tools/199-mcp-mcp-elevenlabs.md
- Homepage: https://github.com/199-mcp/mcp-elevenlabs
- Risk category: Execute (High risk)
- Registry record: grade C, identity unverified
- Server rate-limited: no
- Parameters: 0
- Recommended policy verdict: Rate-limited

## Example call (MCP tools/call, JSON-RPC 2.0)

```json
{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "tools/call",
  "params": {
    "name": "play_audio",
    "arguments": {}
  }
}
```

## Why play_audio is rated High

Playing audio locally is an execution action that interacts with the host system's audio subsystem. It is not a pure read (it produces side effects on the local environment), not a write (no data is persisted), but it does trigger an external operation. Misuse could involve playing unexpected or harmful audio content, but blast radius is generally limited to the local session.

From the tool's own definition: "'Plays audio file locally' — triggers an external operation (local audio playback) with side effects on the host system"

## Use case

AI agents invoke play_audio to trigger actions in ElevenLabs MCP Enhanced. What it does depends on the arguments the agent supplies, and its effects often reach beyond the immediate call: builds kicked off, notifications sent, workflows started.

## Recommended policy (PolicyLayer)

Verdict: **Rate-limited**. Enforced by the PolicyLayer MCP gateway (https://policylayer.com/mcp-gateway) before a call reaches ElevenLabs MCP Enhanced:

```json
{
  "version": "1",
  "default": "deny",
  "tools": {
    "play_audio": {
      "limits": [
        {
          "counter": "play_audio_rate",
          "window": "minute",
          "max": 10,
          "scope": "grant"
        }
      ]
    }
  }
}
```

## Other tools on ElevenLabs MCP Enhanced (28)

- `isolate_audio` — Execute — https://policylayer.com/tools/199-mcp-mcp-elevenlabs/isolate-audio.md
- `make_outbound_call` — Execute — https://policylayer.com/tools/199-mcp-mcp-elevenlabs/make-outbound-call.md
- `speech_to_speech` — Execute — https://policylayer.com/tools/199-mcp-mcp-elevenlabs/speech-to-speech.md
- `text_to_dialogue` — Execute — https://policylayer.com/tools/199-mcp-mcp-elevenlabs/text-to-dialogue.md
- `text_to_sound_effects` — Execute — https://policylayer.com/tools/199-mcp-mcp-elevenlabs/text-to-sound-effects.md
- `check_subscription` — Read — https://policylayer.com/tools/199-mcp-mcp-elevenlabs/check-subscription.md
- `fetch_v3_tags` — Read — https://policylayer.com/tools/199-mcp-mcp-elevenlabs/fetch-v3-tags.md
- `get_agent` — Read — https://policylayer.com/tools/199-mcp-mcp-elevenlabs/get-agent.md
- `get_conversation` — Read — https://policylayer.com/tools/199-mcp-mcp-elevenlabs/get-conversation.md
- `get_conversation_transcript` — Read — https://policylayer.com/tools/199-mcp-mcp-elevenlabs/get-conversation-transcript.md
- `get_v3_audio_tags_guide` — Read — https://policylayer.com/tools/199-mcp-mcp-elevenlabs/get-v3-audio-tags-guide.md
- `get_voice` — Read — https://policylayer.com/tools/199-mcp-mcp-elevenlabs/get-voice.md
- `get_voice_id_by_name` — Read — https://policylayer.com/tools/199-mcp-mcp-elevenlabs/get-voice-id-by-name.md
- `list_agents` — Read — https://policylayer.com/tools/199-mcp-mcp-elevenlabs/list-agents.md
- `list_conversations` — Read — https://policylayer.com/tools/199-mcp-mcp-elevenlabs/list-conversations.md
- `list_models` — Read — https://policylayer.com/tools/199-mcp-mcp-elevenlabs/list-models.md
- `list_phone_numbers` — Read — https://policylayer.com/tools/199-mcp-mcp-elevenlabs/list-phone-numbers.md
- `search_voice_library` — Read — https://policylayer.com/tools/199-mcp-mcp-elevenlabs/search-voice-library.md
- `search_voices` — Read — https://policylayer.com/tools/199-mcp-mcp-elevenlabs/search-voices.md
- `speech_to_text` — Read — https://policylayer.com/tools/199-mcp-mcp-elevenlabs/speech-to-text.md
- `add_knowledge_base_to_agent` — Write — https://policylayer.com/tools/199-mcp-mcp-elevenlabs/add-knowledge-base-to-agent.md
- `create_agent` — Write — https://policylayer.com/tools/199-mcp-mcp-elevenlabs/create-agent.md
- `create_voice_from_preview` — Write — https://policylayer.com/tools/199-mcp-mcp-elevenlabs/create-voice-from-preview.md
- `enhance_dialogue` — Write — https://policylayer.com/tools/199-mcp-mcp-elevenlabs/enhance-dialogue.md
- `text_to_speech` — Write — https://policylayer.com/tools/199-mcp-mcp-elevenlabs/text-to-speech.md
- `text_to_speech_v3` — Write — https://policylayer.com/tools/199-mcp-mcp-elevenlabs/text-to-speech-v3.md
- `text_to_voice` — Write — https://policylayer.com/tools/199-mcp-mcp-elevenlabs/text-to-voice.md
- `voice_clone` — Write — https://policylayer.com/tools/199-mcp-mcp-elevenlabs/voice-clone.md

## For agents

This record is a snapshot. Live verdicts and the full registry:

- Check every server in your MCP config at once: `npx -y policylayer stack`
- Vet a server before you add it: install the mcp-precheck skill — `npx skills add https://policylayer.com` (skill text: https://policylayer.com/skill.md)
- Query the registry over MCP: endpoint `https://api.policylayer.com/mcp` — tools `check_mcp_server`, `check_mcp_stack`, `check_tool`, `search_registry`, `get_change_events`

---

Source: the PolicyLayer MCP registry — one continuously verified record per MCP server. Full record: https://policylayer.com/registry?q=199-mcp-mcp-elevenlabs · API: https://policylayer.com/registry/api · Policy library: https://policylayer.com/policies/199-mcp-mcp-elevenlabs